Document (#33212)

Author

Zhang, J.
Mostafa, J.
Tripathy, H.

Title

Information retrieval by semantic analysis and visualization of the concept space of D-Lib® magazine

Source

D-Lib magazine. 8(2002) no.10, x S

Year

2002

Abstract

In this article we present a method for retrieving documents from a digital library through a visual interface based on automatically generated concepts. We used a vocabulary generation algorithm to generate a set of concepts for the digital library and a technique called the max-min distance technique to cluster them. Additionally, the concepts were visualized in a spring embedding graph layout to depict the semantic relationship among them. The resulting graph layout serves as an aid to users for retrieving documents. An online archive containing the contents of D-Lib Magazine from July 1995 to May 2002 was used to test the utility of an implemented retrieval and visualization system. We believe that the method developed and tested can be applied to many different domains to help users get a better understanding of online document collections and to minimize users' cognitive load during execution of search tasks. Over the past few years, the volume of information available through the World Wide Web has been expanding exponentially. Never has so much information been so readily available and shared among so many people. Unfortunately, the unstructured nature and huge volume of information accessible over networks have made it hard for users to sift through and find relevant information. To deal with this problem, information retrieval (IR) techniques have gained more intensive attention from both industrial and academic researchers. Numerous IR techniques have been developed to help deal with the information overload problem. These techniques concentrate on mathematical models and algorithms for retrieval. Popular IR models such as the Boolean model, the vector-space model, the probabilistic model and their variants are well established.
From the user's perspective, however, it is still difficult to use current information retrieval systems. Users frequently have problems expressing their information needs and translating those needs into queries. This is partly due to the fact that information needs cannot be expressed appropriately in systems terms. It is not unusual for users to input search terms that are different from the index terms information systems use. Various methods have been proposed to help users choose search terms and articulate queries. One widely used approach is to incorporate into the information system a thesaurus-like component that represents both the important concepts in a particular subject area and the semantic relationships among those concepts. Unfortunately, the development and use of thesauri is not without its own problems. The thesaurus employed in a specific information system has often been developed for a general subject area and needs significant enhancement to be tailored to the information system where it is to be used. This thesaurus development process, if done manually, is both time consuming and labor intensive. Usage of a thesaurus in searching is complex and may raise barriers for the user. For illustration purposes, let us consider two scenarios of thesaurus usage. In the first scenario the user inputs a search term and the thesaurus then displays a matching set of related terms. Without an overview of the thesaurus - and without the ability to see the matching terms in the context of other terms - it may be difficult to assess the quality of the related terms in order to select the correct term. In the second scenario the user browses the whole thesaurus, which is organized as in an alphabetically ordered list. The problem with this approach is that the list may be long, and neither does it show users the global semantic relationship among all the listed terms.
Nevertheless, because thesaurus use has shown to improve retrieval, for our method we integrate functions in the search interface that permit users to explore built-in search vocabularies to improve retrieval from digital libraries. Our method automatically generates the terms and their semantic relationships representing relevant topics covered in a digital library. We call these generated terms the "concepts", and the generated terms and their semantic relationships we call the "concept space". Additionally, we used a visualization technique to display the concept space and allow users to interact with this space. The automatically generated term set is considered to be more representative of subject area in a corpus than an "externally" imposed thesaurus, and our method has the potential of saving a significant amount of time and labor for those who have been manually creating thesauri as well. Information visualization is an emerging discipline and developed very quickly in the last decade. With growing volumes of documents and associated complexities, information visualization has become increasingly important. Researchers have found information visualization to be an effective way to use and understand information while minimizing a user's cognitive load. Our work was based on an algorithmic approach of concept discovery and association. Concepts are discovered using an algorithm based on an automated thesaurus generation procedure. Subsequently, similarities among terms are computed using the cosine measure, and the associations among terms are established using a method known as max-min distance clustering. The concept space is then visualized in a spring embedding graph, which roughly shows the semantic relationships among concepts in a 2-D visual representation. The semantic space of the visualization is used as a medium for users to retrieve the desired documents. In the remainder of this article, we present our algorithmic approach of concept generation and clustering, followed by description of the visualization technique and interactive interface. The paper ends with key conclusions and discussions on future work.

Content

The JAVA applet is available at <http://ella.slis.indiana.edu/~junzhang/dlib/IV.html>. A prototype of this interface has been developed and is available at <http://ella.slis.indiana.edu/~junzhang/dlib/IV.html>. The D-Lib search interface is available at <http://www.dlib.org/Architext/AT-dlib2query.html>.

Footnote

Vgl.: http://dlib.ukoln.ac.uk/dlib/october02/zhang/10zhang.html.

Theme

Visualisierung
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (author)

1. Mostafa, J.: Digital image representation and access (1994) 2.43

   2.434787 = sum of:
     2.434787 = product of:
       4.869574 = sum of:
         4.869574 = weight(author_txt:mostafa in 1170) [ClassicSimilarity], result of:
           4.869574 = score(doc=1170,freq=1.0), product of:
             0.8842621 = queryWeight, product of:
               1.3760564 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.072931446 = queryNorm
             5.506935 = fieldWeight in 1170, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=1170)
       0.5 = coord(1/2)
   

2. Mostafa, S.P.: Enfoqies paradigmaticos de bibliotecologia : unidade na diversidad na unidad (1996) 2.43

   2.434787 = sum of:
     2.434787 = product of:
       4.869574 = sum of:
         4.869574 = weight(author_txt:mostafa in 829) [ClassicSimilarity], result of:
           4.869574 = score(doc=829,freq=1.0), product of:
             0.8842621 = queryWeight, product of:
               1.3760564 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.072931446 = queryNorm
             5.506935 = fieldWeight in 829, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=829)
       0.5 = coord(1/2)
   

3. Mostafa, J.: Document search interface design : background and introduction to special topic section (2004) 2.43

   2.434787 = sum of:
     2.434787 = product of:
       4.869574 = sum of:
         4.869574 = weight(author_txt:mostafa in 3503) [ClassicSimilarity], result of:
           4.869574 = score(doc=3503,freq=1.0), product of:
             0.8842621 = queryWeight, product of:
               1.3760564 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.072931446 = queryNorm
             5.506935 = fieldWeight in 3503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=3503)
       0.5 = coord(1/2)
   

4. Mostafa, J.: Bessere Suchmaschinen für das Web (2006) 2.43

   2.434787 = sum of:
     2.434787 = product of:
       4.869574 = sum of:
         4.869574 = weight(author_txt:mostafa in 5871) [ClassicSimilarity], result of:
           4.869574 = score(doc=5871,freq=1.0), product of:
             0.8842621 = queryWeight, product of:
               1.3760564 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.072931446 = queryNorm
             5.506935 = fieldWeight in 5871, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=5871)
       0.5 = coord(1/2)
   

5. Zhang, Y.; Wu, D.; Hagen, L.; Song, I.-Y.; Mostafa, J.; Oh, S.; Anderson, T.; Shah, C.; Bishop, B.W.; Hopfgartner, F.; Eckert, K.; Federer, L.; Saltz, J.S.: Data science curriculum in the iField (2023) 2.02

   2.0215373 = sum of:
     2.0215373 = sum of:
       0.560665 = weight(author_txt:zhang in 1966) [ClassicSimilarity], result of:
         0.560665 = score(doc=1966,freq=1.0), product of:
           0.466991 = queryWeight, product of:
             6.40315 = idf(docFreq=199, maxDocs=44421)
             0.072931446 = queryNorm
           1.2005906 = fieldWeight in 1966, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.40315 = idf(docFreq=199, maxDocs=44421)
             0.1875 = fieldNorm(doc=1966)
       1.4608722 = weight(author_txt:mostafa in 1966) [ClassicSimilarity], result of:
         1.4608722 = score(doc=1966,freq=1.0), product of:
           0.8842621 = queryWeight, product of:
             1.3760564 = boost
             8.811096 = idf(docFreq=17, maxDocs=44421)
             0.072931446 = queryNorm
           1.6520805 = fieldWeight in 1966, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.811096 = idf(docFreq=17, maxDocs=44421)
             0.1875 = fieldNorm(doc=1966)
   

Similar documents (content)

1. Lincicum, S.: Critical appraisal of the use of classification in the future : non traditional uses of classification: report of a panel discussion (1995) 0.60

   0.6039345 = sum of:
     0.6039345 = product of:
       1.0065575 = sum of:
         0.0119256815 = weight(abstract_txt:this in 570) [ClassicSimilarity], result of:
           0.0119256815 = score(doc=570,freq=2.0), product of:
             0.056072537 = queryWeight, product of:
               1.0035595 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.023220368 = queryNorm
             0.21268311 = fieldWeight in 570, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.030022396 = weight(abstract_txt:needs in 570) [ClassicSimilarity], result of:
           0.030022396 = score(doc=570,freq=1.0), product of:
             0.10848981 = queryWeight, product of:
               1.0552211 = boost
               4.4276814 = idf(docFreq=1441, maxDocs=44421)
               0.023220368 = queryNorm
             0.2767301 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4276814 = idf(docFreq=1441, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.038244296 = weight(abstract_txt:relationships in 570) [ClassicSimilarity], result of:
           0.038244296 = score(doc=570,freq=1.0), product of:
             0.12748815 = queryWeight, product of:
               1.1438891 = boost
               4.7997303 = idf(docFreq=993, maxDocs=44421)
               0.023220368 = queryNorm
             0.29998314 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7997303 = idf(docFreq=993, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.01963085 = weight(abstract_txt:used in 570) [ClassicSimilarity], result of:
           0.01963085 = score(doc=570,freq=1.0), product of:
             0.0935582 = queryWeight, product of:
               1.20015 = boost
               3.3572001 = idf(docFreq=4205, maxDocs=44421)
               0.023220368 = queryNorm
             0.20982501 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3572001 = idf(docFreq=4205, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.025323648 = weight(abstract_txt:search in 570) [ClassicSimilarity], result of:
           0.025323648 = score(doc=570,freq=1.0), product of:
             0.11086811 = queryWeight, product of:
               1.3064655 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.023220368 = queryNorm
             0.22841237 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.025432026 = weight(abstract_txt:retrieval in 570) [ClassicSimilarity], result of:
           0.025432026 = score(doc=570,freq=1.0), product of:
             0.11704657 = queryWeight, product of:
               1.4499311 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.023220368 = queryNorm
             0.21728125 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.047238857 = weight(abstract_txt:method in 570) [ClassicSimilarity], result of:
           0.047238857 = score(doc=570,freq=1.0), product of:
             0.16800494 = queryWeight, product of:
               1.6082578 = boost
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.023220368 = queryNorm
             0.2811754 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.067072354 = weight(abstract_txt:concept in 570) [ClassicSimilarity], result of:
           0.067072354 = score(doc=570,freq=2.0), product of:
             0.16845147 = queryWeight, product of:
               1.6103935 = boost
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.023220368 = queryNorm
             0.39817017 = fieldWeight in 570, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.05583359 = weight(abstract_txt:among in 570) [ClassicSimilarity], result of:
           0.05583359 = score(doc=570,freq=1.0), product of:
             0.19771294 = queryWeight, product of:
               1.884454 = boost
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.023220368 = queryNorm
             0.28239724 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.061971065 = weight(abstract_txt:semantic in 570) [ClassicSimilarity], result of:
           0.061971065 = score(doc=570,freq=1.0), product of:
             0.22159572 = queryWeight, product of:
               2.1327732 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.023220368 = queryNorm
             0.27965823 = fieldWeight in 570, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.09214892 = weight(abstract_txt:concepts in 570) [ClassicSimilarity], result of:
           0.09214892 = score(doc=570,freq=2.0), product of:
             0.2291319 = queryWeight, product of:
               2.1687365 = boost
               4.549982 = idf(docFreq=1275, maxDocs=44421)
               0.023220368 = queryNorm
             0.40216538 = fieldWeight in 570, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.549982 = idf(docFreq=1275, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.086356565 = weight(abstract_txt:users in 570) [ClassicSimilarity], result of:
           0.086356565 = score(doc=570,freq=4.0), product of:
             0.19366294 = queryWeight, product of:
               2.337968 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.023220368 = queryNorm
             0.44591168 = fieldWeight in 570, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.03815424 = weight(abstract_txt:information in 570) [ClassicSimilarity], result of:
           0.03815424 = score(doc=570,freq=3.0), product of:
             0.14570832 = queryWeight, product of:
               2.594164 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.023220368 = queryNorm
             0.26185355 = fieldWeight in 570, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.113198295 = weight(abstract_txt:terms in 570) [ClassicSimilarity], result of:
           0.113198295 = score(doc=570,freq=2.0), product of:
             0.3167121 = queryWeight, product of:
               3.3729923 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.023220368 = queryNorm
             0.35741702 = fieldWeight in 570, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
         0.29400462 = weight(abstract_txt:thesaurus in 570) [ClassicSimilarity], result of:
           0.29400462 = score(doc=570,freq=5.0), product of:
             0.40686378 = queryWeight, product of:
               3.3887525 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.023220368 = queryNorm
             0.7226119 = fieldWeight in 570, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.0625 = fieldNorm(doc=570)
       0.6 = coord(15/25)
   

2. Dumais, S.T.: Latent semantic analysis (2003) 0.49

   0.4945079 = sum of:
     0.4945079 = product of:
       0.6868165 = sum of:
         0.012775708 = weight(abstract_txt:developed in 3462) [ClassicSimilarity], result of:
           0.012775708 = score(doc=3462,freq=1.0), product of:
             0.09743209 = queryWeight, product of:
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.023220368 = queryNorm
             0.13112423 = fieldWeight in 3462, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.03242751 = weight(abstract_txt:generation in 3462) [ClassicSimilarity], result of:
           0.03242751 = score(doc=3462,freq=2.0), product of:
             0.1307369 = queryWeight, product of:
               1.0031797 = boost
               5.612423 = idf(docFreq=440, maxDocs=44421)
               0.023220368 = queryNorm
             0.24803638 = fieldWeight in 3462, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.612423 = idf(docFreq=440, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.0059628407 = weight(abstract_txt:this in 3462) [ClassicSimilarity], result of:
           0.0059628407 = score(doc=3462,freq=2.0), product of:
             0.056072537 = queryWeight, product of:
               1.0035595 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.023220368 = queryNorm
             0.106341556 = fieldWeight in 3462, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.03312053 = weight(abstract_txt:relationships in 3462) [ClassicSimilarity], result of:
           0.03312053 = score(doc=3462,freq=3.0), product of:
             0.12748815 = queryWeight, product of:
               1.1438891 = boost
               4.7997303 = idf(docFreq=993, maxDocs=44421)
               0.023220368 = queryNorm
             0.259793 = fieldWeight in 3462, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.7997303 = idf(docFreq=993, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.024042785 = weight(abstract_txt:used in 3462) [ClassicSimilarity], result of:
           0.024042785 = score(doc=3462,freq=6.0), product of:
             0.0935582 = queryWeight, product of:
               1.20015 = boost
               3.3572001 = idf(docFreq=4205, maxDocs=44421)
               0.023220368 = queryNorm
             0.25698212 = fieldWeight in 3462, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.3572001 = idf(docFreq=4205, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.024498038 = weight(abstract_txt:been in 3462) [ClassicSimilarity], result of:
           0.024498038 = score(doc=3462,freq=4.0), product of:
             0.10844512 = queryWeight, product of:
               1.2921104 = boost
               3.614442 = idf(docFreq=3251, maxDocs=44421)
               0.023220368 = queryNorm
             0.22590263 = fieldWeight in 3462, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.614442 = idf(docFreq=3251, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.021930924 = weight(abstract_txt:search in 3462) [ClassicSimilarity], result of:
           0.021930924 = score(doc=3462,freq=3.0), product of:
             0.11086811 = queryWeight, product of:
               1.3064655 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.023220368 = queryNorm
             0.19781092 = fieldWeight in 3462, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.028915413 = weight(abstract_txt:generated in 3462) [ClassicSimilarity], result of:
           0.028915413 = score(doc=3462,freq=1.0), product of:
             0.16795708 = queryWeight, product of:
               1.3129499 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.023220368 = queryNorm
             0.17215954 = fieldWeight in 3462, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.052446652 = weight(abstract_txt:technique in 3462) [ClassicSimilarity], result of:
           0.052446652 = score(doc=3462,freq=3.0), product of:
             0.1732009 = queryWeight, product of:
               1.3332883 = boost
               5.5944448 = idf(docFreq=448, maxDocs=44421)
               0.023220368 = queryNorm
             0.3028082 = fieldWeight in 3462, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.5944448 = idf(docFreq=448, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.026222493 = weight(abstract_txt:have in 3462) [ClassicSimilarity], result of:
           0.026222493 = score(doc=3462,freq=7.0), product of:
             0.099130675 = queryWeight, product of:
               1.334357 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.023220368 = queryNorm
             0.26452452 = fieldWeight in 3462, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.03814804 = weight(abstract_txt:retrieval in 3462) [ClassicSimilarity], result of:
           0.03814804 = score(doc=3462,freq=9.0), product of:
             0.11704657 = queryWeight, product of:
               1.4499311 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.023220368 = queryNorm
             0.3259219 = fieldWeight in 3462, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.023713658 = weight(abstract_txt:concept in 3462) [ClassicSimilarity], result of:
           0.023713658 = score(doc=3462,freq=1.0), product of:
             0.16845147 = queryWeight, product of:
               1.6103935 = boost
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.023220368 = queryNorm
             0.14077441 = fieldWeight in 3462, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.05583359 = weight(abstract_txt:among in 3462) [ClassicSimilarity], result of:
           0.05583359 = score(doc=3462,freq=4.0), product of:
             0.19771294 = queryWeight, product of:
               1.884454 = boost
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.023220368 = queryNorm
             0.28239724 = fieldWeight in 3462, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.053668514 = weight(abstract_txt:semantic in 3462) [ClassicSimilarity], result of:
           0.053668514 = score(doc=3462,freq=3.0), product of:
             0.22159572 = queryWeight, product of:
               2.1327732 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.023220368 = queryNorm
             0.24219112 = fieldWeight in 3462, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.021589141 = weight(abstract_txt:users in 3462) [ClassicSimilarity], result of:
           0.021589141 = score(doc=3462,freq=1.0), product of:
             0.19366294 = queryWeight, product of:
               2.337968 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.023220368 = queryNorm
             0.11147792 = fieldWeight in 3462, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.033042543 = weight(abstract_txt:information in 3462) [ClassicSimilarity], result of:
           0.033042543 = score(doc=3462,freq=9.0), product of:
             0.14570832 = queryWeight, product of:
               2.594164 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.023220368 = queryNorm
             0.22677183 = fieldWeight in 3462, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.13273677 = weight(abstract_txt:terms in 3462) [ClassicSimilarity], result of:
           0.13273677 = score(doc=3462,freq=11.0), product of:
             0.3167121 = queryWeight, product of:
               3.3729923 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.023220368 = queryNorm
             0.41910863 = fieldWeight in 3462, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
         0.06574143 = weight(abstract_txt:thesaurus in 3462) [ClassicSimilarity], result of:
           0.06574143 = score(doc=3462,freq=1.0), product of:
             0.40686378 = queryWeight, product of:
               3.3887525 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.023220368 = queryNorm
             0.16158094 = fieldWeight in 3462, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.03125 = fieldNorm(doc=3462)
       0.72 = coord(18/25)
   

3. Kim, Y.W.; Kim, J.H.: ¬A model of knowledge based information retrieval with hierarchical concept graph (1990) 0.44

   0.44469228 = sum of:
     0.44469228 = product of:
       0.92644227 = sum of:
         0.03193927 = weight(abstract_txt:developed in 3908) [ClassicSimilarity], result of:
           0.03193927 = score(doc=3908,freq=1.0), product of:
             0.09743209 = queryWeight, product of:
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.023220368 = queryNorm
             0.3278106 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.010540913 = weight(abstract_txt:this in 3908) [ClassicSimilarity], result of:
           0.010540913 = score(doc=3908,freq=1.0), product of:
             0.056072537 = queryWeight, product of:
               1.0035595 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.023220368 = queryNorm
             0.18798709 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.04780537 = weight(abstract_txt:relationships in 3908) [ClassicSimilarity], result of:
           0.04780537 = score(doc=3908,freq=1.0), product of:
             0.12748815 = queryWeight, product of:
               1.1438891 = boost
               4.7997303 = idf(docFreq=993, maxDocs=44421)
               0.023220368 = queryNorm
             0.37497893 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7997303 = idf(docFreq=993, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.09128543 = weight(abstract_txt:graph in 3908) [ClassicSimilarity], result of:
           0.09128543 = score(doc=3908,freq=1.0), product of:
             0.1782817 = queryWeight, product of:
               1.1714749 = boost
               6.553973 = idf(docFreq=171, maxDocs=44421)
               0.023220368 = queryNorm
             0.5120292 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.553973 = idf(docFreq=171, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.035041284 = weight(abstract_txt:have in 3908) [ClassicSimilarity], result of:
           0.035041284 = score(doc=3908,freq=2.0), product of:
             0.099130675 = queryWeight, product of:
               1.334357 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.023220368 = queryNorm
             0.35348576 = fieldWeight in 3908, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.031790033 = weight(abstract_txt:retrieval in 3908) [ClassicSimilarity], result of:
           0.031790033 = score(doc=3908,freq=1.0), product of:
             0.11704657 = queryWeight, product of:
               1.4499311 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.023220368 = queryNorm
             0.27160156 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.05904857 = weight(abstract_txt:method in 3908) [ClassicSimilarity], result of:
           0.05904857 = score(doc=3908,freq=1.0), product of:
             0.16800494 = queryWeight, product of:
               1.6082578 = boost
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.023220368 = queryNorm
             0.35146925 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.083840445 = weight(abstract_txt:concept in 3908) [ClassicSimilarity], result of:
           0.083840445 = score(doc=3908,freq=2.0), product of:
             0.16845147 = queryWeight, product of:
               1.6103935 = boost
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.023220368 = queryNorm
             0.49771273 = fieldWeight in 3908, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.08144891 = weight(abstract_txt:concepts in 3908) [ClassicSimilarity], result of:
           0.08144891 = score(doc=3908,freq=1.0), product of:
             0.2291319 = queryWeight, product of:
               2.1687365 = boost
               4.549982 = idf(docFreq=1275, maxDocs=44421)
               0.023220368 = queryNorm
             0.35546735 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.549982 = idf(docFreq=1275, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.027535453 = weight(abstract_txt:information in 3908) [ClassicSimilarity], result of:
           0.027535453 = score(doc=3908,freq=1.0), product of:
             0.14570832 = queryWeight, product of:
               2.594164 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.023220368 = queryNorm
             0.18897653 = fieldWeight in 3908, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.14149787 = weight(abstract_txt:terms in 3908) [ClassicSimilarity], result of:
           0.14149787 = score(doc=3908,freq=2.0), product of:
             0.3167121 = queryWeight, product of:
               3.3729923 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.023220368 = queryNorm
             0.44677126 = fieldWeight in 3908, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
         0.28466877 = weight(abstract_txt:thesaurus in 3908) [ClassicSimilarity], result of:
           0.28466877 = score(doc=3908,freq=3.0), product of:
             0.40686378 = queryWeight, product of:
               3.3887525 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.023220368 = queryNorm
             0.699666 = fieldWeight in 3908, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.078125 = fieldNorm(doc=3908)
       0.48 = coord(12/25)
   

4. Chen, H.; Houston, A.L.; Sewell, R.R.; Schatz, B.R.: Internet browsing and searching : user evaluations of category map and concept space techniques (1998) 0.43

   0.42876217 = sum of:
     0.42876217 = product of:
       0.82454264 = sum of:
         0.019163562 = weight(abstract_txt:developed in 1869) [ClassicSimilarity], result of:
           0.019163562 = score(doc=1869,freq=1.0), product of:
             0.09743209 = queryWeight, product of:
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.023220368 = queryNorm
             0.19668634 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.006324548 = weight(abstract_txt:this in 1869) [ClassicSimilarity], result of:
           0.006324548 = score(doc=1869,freq=1.0), product of:
             0.056072537 = queryWeight, product of:
               1.0035595 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.023220368 = queryNorm
             0.11279225 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.032896385 = weight(abstract_txt:search in 1869) [ClassicSimilarity], result of:
           0.032896385 = score(doc=1869,freq=3.0), product of:
             0.11086811 = queryWeight, product of:
               1.3064655 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.023220368 = queryNorm
             0.2967164 = fieldWeight in 1869, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.061338853 = weight(abstract_txt:generated in 1869) [ClassicSimilarity], result of:
           0.061338853 = score(doc=1869,freq=2.0), product of:
             0.16795708 = queryWeight, product of:
               1.3129499 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.023220368 = queryNorm
             0.36520553 = fieldWeight in 1869, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.014866757 = weight(abstract_txt:have in 1869) [ClassicSimilarity], result of:
           0.014866757 = score(doc=1869,freq=1.0), product of:
             0.099130675 = queryWeight, product of:
               1.334357 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.023220368 = queryNorm
             0.1499713 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.026974736 = weight(abstract_txt:retrieval in 1869) [ClassicSimilarity], result of:
           0.026974736 = score(doc=1869,freq=2.0), product of:
             0.11704657 = queryWeight, product of:
               1.4499311 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.023220368 = queryNorm
             0.23046157 = fieldWeight in 1869, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.06160989 = weight(abstract_txt:concept in 1869) [ClassicSimilarity], result of:
           0.06160989 = score(doc=1869,freq=3.0), product of:
             0.16845147 = queryWeight, product of:
               1.6103935 = boost
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.023220368 = queryNorm
             0.36574265 = fieldWeight in 1869, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.04187519 = weight(abstract_txt:among in 1869) [ClassicSimilarity], result of:
           0.04187519 = score(doc=1869,freq=1.0), product of:
             0.19771294 = queryWeight, product of:
               1.884454 = boost
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.023220368 = queryNorm
             0.21179792 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.14243802 = weight(abstract_txt:space in 1869) [ClassicSimilarity], result of:
           0.14243802 = score(doc=1869,freq=4.0), product of:
             0.281705 = queryWeight, product of:
               2.2493927 = boost
               5.393369 = idf(docFreq=548, maxDocs=44421)
               0.023220368 = queryNorm
             0.50562835 = fieldWeight in 1869, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.393369 = idf(docFreq=548, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.032383714 = weight(abstract_txt:users in 1869) [ClassicSimilarity], result of:
           0.032383714 = score(doc=1869,freq=1.0), product of:
             0.19366294 = queryWeight, product of:
               2.337968 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.023220368 = queryNorm
             0.16721688 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.02861568 = weight(abstract_txt:information in 1869) [ClassicSimilarity], result of:
           0.02861568 = score(doc=1869,freq=3.0), product of:
             0.14570832 = queryWeight, product of:
               2.594164 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.023220368 = queryNorm
             0.19639015 = fieldWeight in 1869, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.15883097 = weight(abstract_txt:terms in 1869) [ClassicSimilarity], result of:
           0.15883097 = score(doc=1869,freq=7.0), product of:
             0.3167121 = queryWeight, product of:
               3.3729923 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.023220368 = queryNorm
             0.50149953 = fieldWeight in 1869, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.19722429 = weight(abstract_txt:thesaurus in 1869) [ClassicSimilarity], result of:
           0.19722429 = score(doc=1869,freq=4.0), product of:
             0.40686378 = queryWeight, product of:
               3.3887525 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.023220368 = queryNorm
             0.48474282 = fieldWeight in 1869, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
       0.52 = coord(13/25)
   

5. Brunetti, J.M.; Roberto García, R.: User-centered design and evaluation of overview components for semantic data exploration (2014) 0.42

   0.4178188 = sum of:
     0.4178188 = product of:
       0.746105 = sum of:
         0.027101368 = weight(abstract_txt:developed in 2626) [ClassicSimilarity], result of:
           0.027101368 = score(doc=2626,freq=2.0), product of:
             0.09743209 = queryWeight, product of:
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.023220368 = queryNorm
             0.2781565 = fieldWeight in 2626, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1959753 = idf(docFreq=1817, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.012649096 = weight(abstract_txt:this in 2626) [ClassicSimilarity], result of:
           0.012649096 = score(doc=2626,freq=4.0), product of:
             0.056072537 = queryWeight, product of:
               1.0035595 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.023220368 = queryNorm
             0.2255845 = fieldWeight in 2626, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.022516798 = weight(abstract_txt:needs in 2626) [ClassicSimilarity], result of:
           0.022516798 = score(doc=2626,freq=1.0), product of:
             0.10848981 = queryWeight, product of:
               1.0552211 = boost
               4.4276814 = idf(docFreq=1441, maxDocs=44421)
               0.023220368 = queryNorm
             0.20754758 = fieldWeight in 2626, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4276814 = idf(docFreq=1441, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.014723137 = weight(abstract_txt:used in 2626) [ClassicSimilarity], result of:
           0.014723137 = score(doc=2626,freq=1.0), product of:
             0.0935582 = queryWeight, product of:
               1.20015 = boost
               3.3572001 = idf(docFreq=4205, maxDocs=44421)
               0.023220368 = queryNorm
             0.15736875 = fieldWeight in 2626, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3572001 = idf(docFreq=4205, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.025984092 = weight(abstract_txt:been in 2626) [ClassicSimilarity], result of:
           0.025984092 = score(doc=2626,freq=2.0), product of:
             0.10844512 = queryWeight, product of:
               1.2921104 = boost
               3.614442 = idf(docFreq=3251, maxDocs=44421)
               0.023220368 = queryNorm
             0.2396059 = fieldWeight in 2626, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.614442 = idf(docFreq=3251, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.018992737 = weight(abstract_txt:search in 2626) [ClassicSimilarity], result of:
           0.018992737 = score(doc=2626,freq=1.0), product of:
             0.11086811 = queryWeight, product of:
               1.3064655 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.023220368 = queryNorm
             0.17130928 = fieldWeight in 2626, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.07512445 = weight(abstract_txt:generated in 2626) [ClassicSimilarity], result of:
           0.07512445 = score(doc=2626,freq=3.0), product of:
             0.16795708 = queryWeight, product of:
               1.3129499 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.023220368 = queryNorm
             0.44728363 = fieldWeight in 2626, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.045420136 = weight(abstract_txt:technique in 2626) [ClassicSimilarity], result of:
           0.045420136 = score(doc=2626,freq=1.0), product of:
             0.1732009 = queryWeight, product of:
               1.3332883 = boost
               5.5944448 = idf(docFreq=448, maxDocs=44421)
               0.023220368 = queryNorm
             0.2622396 = fieldWeight in 2626, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5944448 = idf(docFreq=448, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.02574998 = weight(abstract_txt:have in 2626) [ClassicSimilarity], result of:
           0.02574998 = score(doc=2626,freq=3.0), product of:
             0.099130675 = queryWeight, product of:
               1.334357 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.023220368 = queryNorm
             0.25975794 = fieldWeight in 2626, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.13146047 = weight(abstract_txt:semantic in 2626) [ClassicSimilarity], result of:
           0.13146047 = score(doc=2626,freq=8.0), product of:
             0.22159572 = queryWeight, product of:
               2.1327732 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.023220368 = queryNorm
             0.5932447 = fieldWeight in 2626, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.08567925 = weight(abstract_txt:users in 2626) [ClassicSimilarity], result of:
           0.08567925 = score(doc=2626,freq=7.0), product of:
             0.19366294 = queryWeight, product of:
               2.337968 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.023220368 = queryNorm
             0.44241428 = fieldWeight in 2626, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.036942687 = weight(abstract_txt:information in 2626) [ClassicSimilarity], result of:
           0.036942687 = score(doc=2626,freq=5.0), product of:
             0.14570832 = queryWeight, product of:
               2.594164 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.023220368 = queryNorm
             0.2535386 = fieldWeight in 2626, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.1251487 = weight(abstract_txt:visualization in 2626) [ClassicSimilarity], result of:
           0.1251487 = score(doc=2626,freq=1.0), product of:
             0.4288895 = queryWeight, product of:
               2.967131 = boost
               6.225004 = idf(docFreq=238, maxDocs=44421)
               0.023220368 = queryNorm
             0.29179707 = fieldWeight in 2626, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.225004 = idf(docFreq=238, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
         0.098612145 = weight(abstract_txt:thesaurus in 2626) [ClassicSimilarity], result of:
           0.098612145 = score(doc=2626,freq=1.0), product of:
             0.40686378 = queryWeight, product of:
               3.3887525 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.023220368 = queryNorm
             0.24237141 = fieldWeight in 2626, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.046875 = fieldNorm(doc=2626)
       0.56 = coord(14/25)