Document (#37358)

Editor

Jouis, C. u.a.

Title

Next generation search engines : advanced models for information retrieval

Imprint

Hershey, PA : IGI Publishing

Year

2012

Pages

560 S

Isbn

978-1-4666-0330-1

Abstract

The main goal of this book is to transfer new research results from the fields of advanced computer sciences and information science to the design of new search engines. The readers will have a better idea of the new trends in applied research. The achievement of relevant, organized, sorted, and workable answers- to name but a few - from a search is becoming a daily need for enterprises and organizations, and, to a greater extent, for anyone. It does not consist of getting access to structural information as in standard databases; nor does it consist of searching information strictly by way of a combination of key words. It goes far beyond that. Whatever its modality, the information sought should be identified by the topics it contains, that is to say by its textual, audio, video or graphical contents. This is not a new issue. However, recent technological advances have completely changed the techniques being used. New Web technologies, the emergence of Intranet systems and the abundance of information on the Internet have created the need for efficient search and information access tools.
Recent technological progress in computer science, Web technologies, and constantly evolving information available on the Internet has drastically changed the landscape of search and access to information. Web search has significantly evolved in recent years. In the beginning, web search engines such as Google and Yahoo! were only providing search service over text documents. Aggregated search was one of the first steps to go beyond text search, and was the beginning of a new era for information seeking and retrieval. These days, new web search engines support aggregated search over a number of vertices, and blend different types of documents (e.g., images, videos) in their search results. New search engines employ advanced techniques involving machine learning, computational linguistics and psychology, user interaction and modeling, information visualization, Web engineering, artificial intelligence, distributed systems, social networks, statistical analysis, semantic analysis, and technologies over query sessions. Documents no longer exist on their own; they are connected to other documents, they are associated with users and their position in a social network, and they can be mapped onto a variety of ontologies. Similarly, retrieval tasks have become more interactive and are solidly embedded in a user's geospatial, social, and historical context. It is conjectured that new breakthroughs in information retrieval will not come from smarter algorithms that better exploit existing information sources, but from new retrieval algorithms that can intelligently use and combine new sources of contextual metadata.
With the rapid growth of web-based applications, such as search engines, Facebook, and Twitter, the development of effective and personalized information retrieval techniques and of user interfaces is essential. The amount of shared information and of social networks has also considerably grown, requiring metadata for new sources of information, like Wikipedia and ODP. These metadata have to provide classification information for a wide range of topics, as well as for social networking sites like Twitter, and Facebook, each of which provides additional preferences, tagging information and social contexts. Due to the explosion of social networks and other metadata sources, it is an opportune time to identify ways to exploit such metadata in IR tasks such as user modeling, query understanding, and personalization, to name a few. Although the use of traditional metadata such as html text, web page titles, and anchor text is fairly well-understood, the use of category information, user behavior data, and geographical information is just beginning to be studied. This book is intended for scientists and decision-makers who wish to gain working knowledge about search engines in order to evaluate available solutions and to dialogue with software and data providers.

Content

Enthält die Beiträge: Das, A., A. Jain: Indexing the World Wide Web: the journey so far. Ke, W.: Decentralized search and the clustering paradox in large scale information networks. Roux, M.: Metadata for search engines: what can be learned from e-Sciences? Fluhr, C.: Crosslingual access to photo databases. Djioua, B., J.-P. Desclés u. M. Alrahabi: Searching and mining with semantic categories. Ghorbel, H., A. Bahri u. R. Bouaziz: Fuzzy ontologies building platform for Semantic Web: FOB platform. Lassalle, E., E. Lassalle: Semantic models in information retrieval. Berry, M.W., R. Esau u. B. Kiefer: The use of text mining techniques in electronic discovery for legal matters. Sleem-Amer, M., I. Bigorgne u. S. Brizard u.a.: Intelligent semantic search engines for opinion and sentiment mining. Hoeber, O.: Human-centred Web search.
Vert, S.: Extensions of Web browsers useful to knowledge workers. Chen, L.-C.: Next generation search engine for the result clustering technology. Biskri, I., L. Rompré: Using association rules for query reformulation. Habernal, I., M. Konopík u. O. Rohlík: Question answering. Grau, B.: Finding answers to questions, in text collections or Web, in open domain or specialty domains. Berri, J., R. Benlamri: Context-aware mobile search engine. Bouidghaghen, O., L. Tamine: Spatio-temporal based personalization for mobile search. Chaudiron, S., M. Ihadjadene: Studying Web search engines from a user perspective: key concepts and main approaches. Karaman, F.: Artificial intelligence enabled search engines (AIESE) and the implications. Lewandowski, D.: A framework for evaluating the retrieval effectiveness of search engines.

Footnote

Vgl.: http://www.igi-global.com/book/next-generation-search-engines/59723.

Theme

Suchmaschinen

LCSH

Information retrieval
Information retrieval / Research
Information storage and retrieval systems / Research
Search engines
Indexation (Economics)
Data mining
User interfaces (Computer systems)
Information behavior

DDC

025.042/52

LCC

ZA3075

Similar documents (content)

1. Mirizzi, R.: Exploratory browsing in the Web of Data (2011) 0.33

   0.33442456 = sum of:
     0.33442456 = product of:
       0.5971867 = sum of:
         0.011244522 = weight(abstract_txt:systems in 803) [ClassicSimilarity], result of:
           0.011244522 = score(doc=803,freq=1.0), product of:
             0.08438727 = queryWeight, product of:
               1.0500025 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0235604 = queryNorm
             0.13324903 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.045207575 = weight(abstract_txt:exploit in 803) [ClassicSimilarity], result of:
           0.045207575 = score(doc=803,freq=1.0), product of:
             0.16934815 = queryWeight, product of:
               1.0517852 = boost
               6.8339334 = idf(docFreq=129, maxDocs=44421)
               0.0235604 = queryNorm
             0.26695052 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8339334 = idf(docFreq=129, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.02425916 = weight(abstract_txt:recent in 803) [ClassicSimilarity], result of:
           0.02425916 = score(doc=803,freq=1.0), product of:
             0.12801294 = queryWeight, product of:
               1.1199778 = boost
               4.8513412 = idf(docFreq=943, maxDocs=44421)
               0.0235604 = queryNorm
             0.18950552 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8513412 = idf(docFreq=943, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.04525474 = weight(abstract_txt:technologies in 803) [ClassicSimilarity], result of:
           0.04525474 = score(doc=803,freq=3.0), product of:
             0.13450518 = queryWeight, product of:
               1.1480266 = boost
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.0235604 = queryNorm
             0.3364535 = fieldWeight in 803, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.020086318 = weight(abstract_txt:have in 803) [ClassicSimilarity], result of:
           0.020086318 = score(doc=803,freq=3.0), product of:
             0.09279248 = queryWeight, product of:
               1.2310147 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.0235604 = queryNorm
             0.21646494 = fieldWeight in 803, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.02808573 = weight(abstract_txt:documents in 803) [ClassicSimilarity], result of:
           0.02808573 = score(doc=803,freq=2.0), product of:
             0.123300105 = queryWeight, product of:
               1.2692102 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0235604 = queryNorm
             0.2277835 = fieldWeight in 803, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.014177578 = weight(abstract_txt:such in 803) [ClassicSimilarity], result of:
           0.014177578 = score(doc=803,freq=1.0), product of:
             0.10609323 = queryWeight, product of:
               1.3162872 = boost
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0235604 = queryNorm
             0.1336332 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.017659968 = weight(abstract_txt:user in 803) [ClassicSimilarity], result of:
           0.017659968 = score(doc=803,freq=1.0), product of:
             0.12282296 = queryWeight, product of:
               1.4162719 = boost
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.0235604 = queryNorm
             0.14378393 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.04274729 = weight(abstract_txt:sources in 803) [ClassicSimilarity], result of:
           0.04274729 = score(doc=803,freq=2.0), product of:
             0.16314685 = queryWeight, product of:
               1.4599608 = boost
               4.743019 = idf(docFreq=1051, maxDocs=44421)
               0.0235604 = queryNorm
             0.26201725 = fieldWeight in 803, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.743019 = idf(docFreq=1051, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.049361102 = weight(abstract_txt:metadata in 803) [ClassicSimilarity], result of:
           0.049361102 = score(doc=803,freq=1.0), product of:
             0.2589822 = queryWeight, product of:
               2.2528508 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0235604 = queryNorm
             0.19059649 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.036812242 = weight(abstract_txt:social in 803) [ClassicSimilarity], result of:
           0.036812242 = score(doc=803,freq=1.0), product of:
             0.22421114 = queryWeight, product of:
               2.26412 = boost
               4.2031517 = idf(docFreq=1804, maxDocs=44421)
               0.0235604 = queryNorm
             0.16418561 = fieldWeight in 803, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2031517 = idf(docFreq=1804, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.03787505 = weight(abstract_txt:retrieval in 803) [ClassicSimilarity], result of:
           0.03787505 = score(doc=803,freq=2.0), product of:
             0.19721319 = queryWeight, product of:
               2.4077482 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0235604 = queryNorm
             0.1920513 = fieldWeight in 803, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.048113145 = weight(abstract_txt:information in 803) [ClassicSimilarity], result of:
           0.048113145 = score(doc=803,freq=4.0), product of:
             0.25459853 = queryWeight, product of:
               4.467406 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0235604 = queryNorm
             0.18897653 = fieldWeight in 803, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
         0.17630231 = weight(abstract_txt:search in 803) [ClassicSimilarity], result of:
           0.17630231 = score(doc=803,freq=9.0), product of:
             0.41165853 = queryWeight, product of:
               4.780957 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0235604 = queryNorm
             0.4282732 = fieldWeight in 803, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0390625 = fieldNorm(doc=803)
       0.56 = coord(14/25)
   

2. Ceri, S.; Bozzon, A.; Brambilla, M.; Della Valle, E.; Fraternali, P.; Quarteroni, S.: Web Information Retrieval (2013) 0.33

   0.33200437 = sum of:
     0.33200437 = product of:
       0.8300109 = sum of:
         0.02768992 = weight(abstract_txt:techniques in 2082) [ClassicSimilarity], result of:
           0.02768992 = score(doc=2082,freq=1.0), product of:
             0.111720406 = queryWeight, product of:
               1.0462819 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.0235604 = queryNorm
             0.24785016 = fieldWeight in 2082, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.022263017 = weight(abstract_txt:systems in 2082) [ClassicSimilarity], result of:
           0.022263017 = score(doc=2082,freq=2.0), product of:
             0.08438727 = queryWeight, product of:
               1.0500025 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0235604 = queryNorm
             0.2638196 = fieldWeight in 2082, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.040171582 = weight(abstract_txt:networks in 2082) [ClassicSimilarity], result of:
           0.040171582 = score(doc=2082,freq=1.0), product of:
             0.14317395 = queryWeight, product of:
               1.1844438 = boost
               5.1305847 = idf(docFreq=713, maxDocs=44421)
               0.0235604 = queryNorm
             0.28057885 = fieldWeight in 2082, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1305847 = idf(docFreq=713, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.01984861 = weight(abstract_txt:such in 2082) [ClassicSimilarity], result of:
           0.01984861 = score(doc=2082,freq=1.0), product of:
             0.10609323 = queryWeight, product of:
               1.3162872 = boost
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0235604 = queryNorm
             0.1870865 = fieldWeight in 2082, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.0848119 = weight(abstract_txt:advanced in 2082) [ClassicSimilarity], result of:
           0.0848119 = score(doc=2082,freq=2.0), product of:
             0.1870162 = queryWeight, product of:
               1.353699 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.0235604 = queryNorm
             0.4535003 = fieldWeight in 2082, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.05153714 = weight(abstract_txt:social in 2082) [ClassicSimilarity], result of:
           0.05153714 = score(doc=2082,freq=1.0), product of:
             0.22421114 = queryWeight, product of:
               2.26412 = boost
               4.2031517 = idf(docFreq=1804, maxDocs=44421)
               0.0235604 = queryNorm
             0.22985986 = fieldWeight in 2082, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2031517 = idf(docFreq=1804, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.074988775 = weight(abstract_txt:retrieval in 2082) [ClassicSimilarity], result of:
           0.074988775 = score(doc=2082,freq=4.0), product of:
             0.19721319 = queryWeight, product of:
               2.4077482 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0235604 = queryNorm
             0.3802422 = fieldWeight in 2082, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.16602853 = weight(abstract_txt:engines in 2082) [ClassicSimilarity], result of:
           0.16602853 = score(doc=2082,freq=2.0), product of:
             0.40583804 = queryWeight, product of:
               3.256441 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0235604 = queryNorm
             0.40910044 = fieldWeight in 2082, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.08249686 = weight(abstract_txt:information in 2082) [ClassicSimilarity], result of:
           0.08249686 = score(doc=2082,freq=6.0), product of:
             0.25459853 = queryWeight, product of:
               4.467406 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0235604 = queryNorm
             0.32402724 = fieldWeight in 2082, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
         0.26017454 = weight(abstract_txt:search in 2082) [ClassicSimilarity], result of:
           0.26017454 = score(doc=2082,freq=10.0), product of:
             0.41165853 = queryWeight, product of:
               4.780957 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0235604 = queryNorm
             0.6320154 = fieldWeight in 2082, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0546875 = fieldNorm(doc=2082)
       0.4 = coord(10/25)
   

3. Harth, A.; Hogan, A.; Umbrich, J.; Kinsella, S.; Polleres, A.; Decker, S.: Searching and browsing linked data with SWSE* (2012) 0.33

   0.33117363 = sum of:
     0.33117363 = product of:
       0.8279341 = sum of:
         0.038814653 = weight(abstract_txt:recent in 1410) [ClassicSimilarity], result of:
           0.038814653 = score(doc=1410,freq=1.0), product of:
             0.12801294 = queryWeight, product of:
               1.1199778 = boost
               4.8513412 = idf(docFreq=943, maxDocs=44421)
               0.0235604 = queryNorm
             0.30320883 = fieldWeight in 1410, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8513412 = idf(docFreq=943, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.018554946 = weight(abstract_txt:have in 1410) [ClassicSimilarity], result of:
           0.018554946 = score(doc=1410,freq=1.0), product of:
             0.09279248 = queryWeight, product of:
               1.2310147 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.0235604 = queryNorm
             0.19996175 = fieldWeight in 1410, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.029907322 = weight(abstract_txt:text in 1410) [ClassicSimilarity], result of:
           0.029907322 = score(doc=1410,freq=1.0), product of:
             0.118418984 = queryWeight, product of:
               1.2438343 = boost
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.0235604 = queryNorm
             0.25255513 = fieldWeight in 1410, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.055036567 = weight(abstract_txt:documents in 1410) [ClassicSimilarity], result of:
           0.055036567 = score(doc=1410,freq=3.0), product of:
             0.123300105 = queryWeight, product of:
               1.2692102 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0235604 = queryNorm
             0.4463627 = fieldWeight in 1410, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.04536825 = weight(abstract_txt:such in 1410) [ClassicSimilarity], result of:
           0.04536825 = score(doc=1410,freq=4.0), product of:
             0.10609323 = queryWeight, product of:
               1.3162872 = boost
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0235604 = queryNorm
             0.42762625 = fieldWeight in 1410, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.028255947 = weight(abstract_txt:user in 1410) [ClassicSimilarity], result of:
           0.028255947 = score(doc=1410,freq=1.0), product of:
             0.12282296 = queryWeight, product of:
               1.4162719 = boost
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.0235604 = queryNorm
             0.23005427 = fieldWeight in 1410, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.05889959 = weight(abstract_txt:social in 1410) [ClassicSimilarity], result of:
           0.05889959 = score(doc=1410,freq=1.0), product of:
             0.22421114 = queryWeight, product of:
               2.26412 = boost
               4.2031517 = idf(docFreq=1804, maxDocs=44421)
               0.0235604 = queryNorm
             0.26269698 = fieldWeight in 1410, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2031517 = idf(docFreq=1804, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.2683426 = weight(abstract_txt:engines in 1410) [ClassicSimilarity], result of:
           0.2683426 = score(doc=1410,freq=4.0), product of:
             0.40583804 = queryWeight, product of:
               3.256441 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0235604 = queryNorm
             0.6612062 = fieldWeight in 1410, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.05443381 = weight(abstract_txt:information in 1410) [ClassicSimilarity], result of:
           0.05443381 = score(doc=1410,freq=2.0), product of:
             0.25459853 = queryWeight, product of:
               4.467406 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0235604 = queryNorm
             0.21380253 = fieldWeight in 1410, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
         0.23032038 = weight(abstract_txt:search in 1410) [ClassicSimilarity], result of:
           0.23032038 = score(doc=1410,freq=6.0), product of:
             0.41165853 = queryWeight, product of:
               4.780957 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0235604 = queryNorm
             0.5594938 = fieldWeight in 1410, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=1410)
       0.4 = coord(10/25)
   

4. Chowdhury, G.G.: ¬The Internet and information retrieval research : a brief review (1999) 0.33

   0.32635707 = sum of:
     0.32635707 = product of:
       1.0198659 = sum of:
         0.06792565 = weight(abstract_txt:recent in 4424) [ClassicSimilarity], result of:
           0.06792565 = score(doc=4424,freq=1.0), product of:
             0.12801294 = queryWeight, product of:
               1.1199778 = boost
               4.8513412 = idf(docFreq=943, maxDocs=44421)
               0.0235604 = queryNorm
             0.53061545 = fieldWeight in 4424, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8513412 = idf(docFreq=943, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.0699299 = weight(abstract_txt:user in 4424) [ClassicSimilarity], result of:
           0.0699299 = score(doc=4424,freq=2.0), product of:
             0.12282296 = queryWeight, product of:
               1.4162719 = boost
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.0235604 = queryNorm
             0.56935525 = fieldWeight in 4424, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.08463532 = weight(abstract_txt:sources in 4424) [ClassicSimilarity], result of:
           0.08463532 = score(doc=4424,freq=1.0), product of:
             0.16314685 = queryWeight, product of:
               1.4599608 = boost
               4.743019 = idf(docFreq=1051, maxDocs=44421)
               0.0235604 = queryNorm
             0.5187677 = fieldWeight in 4424, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.743019 = idf(docFreq=1051, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.13821109 = weight(abstract_txt:metadata in 4424) [ClassicSimilarity], result of:
           0.13821109 = score(doc=4424,freq=1.0), product of:
             0.2589822 = queryWeight, product of:
               2.2528508 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0235604 = queryNorm
             0.5336702 = fieldWeight in 4424, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.074988775 = weight(abstract_txt:retrieval in 4424) [ClassicSimilarity], result of:
           0.074988775 = score(doc=4424,freq=1.0), product of:
             0.19721319 = queryWeight, product of:
               2.4077482 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0235604 = queryNorm
             0.3802422 = fieldWeight in 4424, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.23479979 = weight(abstract_txt:engines in 4424) [ClassicSimilarity], result of:
           0.23479979 = score(doc=4424,freq=1.0), product of:
             0.40583804 = queryWeight, product of:
               3.256441 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0235604 = queryNorm
             0.5785554 = fieldWeight in 4424, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.11666817 = weight(abstract_txt:information in 4424) [ClassicSimilarity], result of:
           0.11666817 = score(doc=4424,freq=3.0), product of:
             0.25459853 = queryWeight, product of:
               4.467406 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0235604 = queryNorm
             0.4582437 = fieldWeight in 4424, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
         0.2327072 = weight(abstract_txt:search in 4424) [ClassicSimilarity], result of:
           0.2327072 = score(doc=4424,freq=2.0), product of:
             0.41165853 = queryWeight, product of:
               4.780957 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0235604 = queryNorm
             0.5652918 = fieldWeight in 4424, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.109375 = fieldNorm(doc=4424)
       0.32 = coord(8/25)
   

5. TREC: experiment and evaluation in information retrieval (2005) 0.32

   0.3221075 = sum of:
     0.3221075 = product of:
       0.7320625 = sum of:
         0.031645626 = weight(abstract_txt:techniques in 761) [ClassicSimilarity], result of:
           0.031645626 = score(doc=761,freq=1.0), product of:
             0.111720406 = queryWeight, product of:
               1.0462819 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.0235604 = queryNorm
             0.28325734 = fieldWeight in 761, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.017991235 = weight(abstract_txt:systems in 761) [ClassicSimilarity], result of:
           0.017991235 = score(doc=761,freq=1.0), product of:
             0.08438727 = queryWeight, product of:
               1.0500025 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0235604 = queryNorm
             0.21319844 = fieldWeight in 761, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.041804537 = weight(abstract_txt:technologies in 761) [ClassicSimilarity], result of:
           0.041804537 = score(doc=761,freq=1.0), product of:
             0.13450518 = queryWeight, product of:
               1.1480266 = boost
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.0235604 = queryNorm
             0.31080243 = fieldWeight in 761, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.059814643 = weight(abstract_txt:text in 761) [ClassicSimilarity], result of:
           0.059814643 = score(doc=761,freq=4.0), product of:
             0.118418984 = queryWeight, product of:
               1.2438343 = boost
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.0235604 = queryNorm
             0.50511026 = fieldWeight in 761, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.031775378 = weight(abstract_txt:documents in 761) [ClassicSimilarity], result of:
           0.031775378 = score(doc=761,freq=1.0), product of:
             0.123300105 = queryWeight, product of:
               1.2692102 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0235604 = queryNorm
             0.25770763 = fieldWeight in 761, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.032080196 = weight(abstract_txt:such in 761) [ClassicSimilarity], result of:
           0.032080196 = score(doc=761,freq=2.0), product of:
             0.10609323 = queryWeight, product of:
               1.3162872 = boost
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0235604 = queryNorm
             0.3023774 = fieldWeight in 761, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.42101 = idf(docFreq=3945, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.08587865 = weight(abstract_txt:beginning in 761) [ClassicSimilarity], result of:
           0.08587865 = score(doc=761,freq=1.0), product of:
             0.21736029 = queryWeight, product of:
               1.459394 = boost
               6.3215704 = idf(docFreq=216, maxDocs=44421)
               0.0235604 = queryNorm
             0.39509815 = fieldWeight in 761, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.3215704 = idf(docFreq=216, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.14843927 = weight(abstract_txt:retrieval in 761) [ClassicSimilarity], result of:
           0.14843927 = score(doc=761,freq=12.0), product of:
             0.19721319 = queryWeight, product of:
               2.4077482 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0235604 = queryNorm
             0.7526843 = fieldWeight in 761, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.1341713 = weight(abstract_txt:engines in 761) [ClassicSimilarity], result of:
           0.1341713 = score(doc=761,freq=1.0), product of:
             0.40583804 = queryWeight, product of:
               3.256441 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0235604 = queryNorm
             0.3306031 = fieldWeight in 761, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.05443381 = weight(abstract_txt:information in 761) [ClassicSimilarity], result of:
           0.05443381 = score(doc=761,freq=2.0), product of:
             0.25459853 = queryWeight, product of:
               4.467406 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0235604 = queryNorm
             0.21380253 = fieldWeight in 761, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0625 = fieldNorm(doc=761)
         0.0940279 = weight(abstract_txt:search in 761) [ClassicSimilarity], result of:
           0.0940279 = score(doc=761,freq=1.0), product of:
             0.41165853 = queryWeight, product of:
               4.780957 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0235604 = queryNorm
             0.22841237 = fieldWeight in 761, 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=761)
       0.44 = coord(11/25)