Document (#32862)

Author

Dudek, D.
Mastora, A.
Landoni, M.

Title

Is Google the answer? : a study into usability of search engines

Source

Library review. 56(2007) no.3, S.194-196

Year

2007

Abstract

Purpose - The purpose of this paper is to discuss the importance of usability and overall user satisfaction when comparing performance of different search engines. Design/methodology/approach - The study described in this paper starts from an investigation of existing methodologies for evaluating search engines in order to find out what are the most important factors for users to decide which system to use when searching the World Wide Web. Findings - This study confirmed that usability and popularity are closely linked. This study has shown that no one-search engine holds the key to ultimate search results. Just as there is cultural, political and geographical differences in the world's population, there are a number of search engines to fit the individual needs of every net citizen. Whereas results, precision, recall and reliability are the factors which participants prize highly, regardless of all other aspects. It was found that the speed of search engine results has become a high priority to participants. Research limitations/implications - Number of participants was limited and although some questions were confusing to some individuals, a majority of questionnaires were completed in a satisfactory fashion. Originality/value - This paper describes a usability study involving different search engines looking at links between popularity and usability.

Theme

Suchmaschinen

Object

Google

Similar documents (content)

1. Spink, A.; Jansen, B.J.; Blakely, C.; Koshman, S.: ¬A study of results overlap and uniqueness among major Web search engines (2006) 0.29

   0.28525183 = sum of:
     0.28525183 = product of:
       0.891412 = sum of:
         0.020715268 = weight(abstract_txt:number in 993) [ClassicSimilarity], result of:
           0.020715268 = score(doc=993,freq=1.0), product of:
             0.091658756 = queryWeight, product of:
               1.1138883 = boost
               4.132649 = idf(docFreq=1927, maxDocs=44218)
               0.019911492 = queryNorm
             0.22600424 = fieldWeight in 993, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.132649 = idf(docFreq=1927, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.018352663 = weight(abstract_txt:paper in 993) [ClassicSimilarity], result of:
           0.018352663 = score(doc=993,freq=1.0), product of:
             0.096785456 = queryWeight, product of:
               1.4018623 = boost
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.019911492 = queryNorm
             0.18962212 = fieldWeight in 993, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.055777848 = weight(abstract_txt:results in 993) [ClassicSimilarity], result of:
           0.055777848 = score(doc=993,freq=9.0), product of:
             0.09762724 = queryWeight, product of:
               1.4079454 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.019911492 = queryNorm
             0.5713349 = fieldWeight in 993, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.07008959 = weight(abstract_txt:engine in 993) [ClassicSimilarity], result of:
           0.07008959 = score(doc=993,freq=2.0), product of:
             0.16396053 = queryWeight, product of:
               1.4897875 = boost
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.019911492 = queryNorm
             0.42747846 = fieldWeight in 993, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.01457946 = weight(abstract_txt:this in 993) [ClassicSimilarity], result of:
           0.01457946 = score(doc=993,freq=2.0), product of:
             0.07812282 = queryWeight, product of:
               1.625974 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019911492 = queryNorm
             0.1866223 = fieldWeight in 993, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.06585026 = weight(abstract_txt:study in 993) [ClassicSimilarity], result of:
           0.06585026 = score(doc=993,freq=5.0), product of:
             0.15728064 = queryWeight, product of:
               2.3070781 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.019911492 = queryNorm
             0.41868 = fieldWeight in 993, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.4091064 = weight(abstract_txt:engines in 993) [ClassicSimilarity], result of:
           0.4091064 = score(doc=993,freq=14.0), product of:
             0.3771161 = queryWeight, product of:
               3.5724175 = boost
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.019911492 = queryNorm
             1.0848287 = fieldWeight in 993, product of:
               3.7416575 = tf(freq=14.0), with freq of:
                 14.0 = termFreq=14.0
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
         0.23694047 = weight(abstract_txt:search in 993) [ClassicSimilarity], result of:
           0.23694047 = score(doc=993,freq=17.0), product of:
             0.28726107 = queryWeight, product of:
               3.9438741 = boost
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.019911492 = queryNorm
             0.82482624 = fieldWeight in 993, product of:
               4.1231055 = tf(freq=17.0), with freq of:
                 17.0 = termFreq=17.0
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.0546875 = fieldNorm(doc=993)
       0.32 = coord(8/25)
   

2. Lewandowski, D.: ¬The retrieval effectiveness of search engines on navigational queries (2011) 0.28

   0.27613786 = sum of:
     0.27613786 = product of:
       0.76704955 = sum of:
         0.02394513 = weight(abstract_txt:when in 4537) [ClassicSimilarity], result of:
           0.02394513 = score(doc=4537,freq=1.0), product of:
             0.09235571 = queryWeight, product of:
               1.1181152 = boost
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.019911492 = queryNorm
             0.2592707 = fieldWeight in 4537, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.042181175 = weight(abstract_txt:purpose in 4537) [ClassicSimilarity], result of:
           0.042181175 = score(doc=4537,freq=2.0), product of:
             0.10691897 = queryWeight, product of:
               1.2030455 = boost
               4.463432 = idf(docFreq=1384, maxDocs=44218)
               0.019911492 = queryNorm
             0.39451537 = fieldWeight in 4537, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.463432 = idf(docFreq=1384, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.020974472 = weight(abstract_txt:paper in 4537) [ClassicSimilarity], result of:
           0.020974472 = score(doc=4537,freq=1.0), product of:
             0.096785456 = queryWeight, product of:
               1.4018623 = boost
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.019911492 = queryNorm
             0.216711 = fieldWeight in 4537, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.030050205 = weight(abstract_txt:results in 4537) [ClassicSimilarity], result of:
           0.030050205 = score(doc=4537,freq=2.0), product of:
             0.09762724 = queryWeight, product of:
               1.4079454 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.019911492 = queryNorm
             0.30780554 = fieldWeight in 4537, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.05664095 = weight(abstract_txt:engine in 4537) [ClassicSimilarity], result of:
           0.05664095 = score(doc=4537,freq=1.0), product of:
             0.16396053 = queryWeight, product of:
               1.4897875 = boost
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.019911492 = queryNorm
             0.34545478 = fieldWeight in 4537, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.020406991 = weight(abstract_txt:this in 4537) [ClassicSimilarity], result of:
           0.020406991 = score(doc=4537,freq=3.0), product of:
             0.07812282 = queryWeight, product of:
               1.625974 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019911492 = queryNorm
             0.2612168 = fieldWeight in 4537, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.03365615 = weight(abstract_txt:study in 4537) [ClassicSimilarity], result of:
           0.03365615 = score(doc=4537,freq=1.0), product of:
             0.15728064 = queryWeight, product of:
               2.3070781 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.019911492 = queryNorm
             0.21398787 = fieldWeight in 4537, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.35343468 = weight(abstract_txt:engines in 4537) [ClassicSimilarity], result of:
           0.35343468 = score(doc=4537,freq=8.0), product of:
             0.3771161 = queryWeight, product of:
               3.5724175 = boost
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.019911492 = queryNorm
             0.9372039 = fieldWeight in 4537, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
         0.18575978 = weight(abstract_txt:search in 4537) [ClassicSimilarity], result of:
           0.18575978 = score(doc=4537,freq=8.0), product of:
             0.28726107 = queryWeight, product of:
               3.9438741 = boost
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.019911492 = queryNorm
             0.6466584 = fieldWeight in 4537, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.0625 = fieldNorm(doc=4537)
       0.36 = coord(9/25)
   

3. Sachse, J.: ¬The influence of snippet length on user behavior in mobile web search (2019) 0.27

   0.26949143 = sum of:
     0.26949143 = product of:
       0.74858725 = sum of:
         0.05166118 = weight(abstract_txt:purpose in 5493) [ClassicSimilarity], result of:
           0.05166118 = score(doc=5493,freq=3.0), product of:
             0.10691897 = queryWeight, product of:
               1.2030455 = boost
               4.463432 = idf(docFreq=1384, maxDocs=44218)
               0.019911492 = queryNorm
             0.48318067 = fieldWeight in 5493, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.463432 = idf(docFreq=1384, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.020974472 = weight(abstract_txt:paper in 5493) [ClassicSimilarity], result of:
           0.020974472 = score(doc=5493,freq=1.0), product of:
             0.096785456 = queryWeight, product of:
               1.4018623 = boost
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.019911492 = queryNorm
             0.216711 = fieldWeight in 5493, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.030050205 = weight(abstract_txt:results in 5493) [ClassicSimilarity], result of:
           0.030050205 = score(doc=5493,freq=2.0), product of:
             0.09762724 = queryWeight, product of:
               1.4079454 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.019911492 = queryNorm
             0.30780554 = fieldWeight in 5493, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.05664095 = weight(abstract_txt:engine in 5493) [ClassicSimilarity], result of:
           0.05664095 = score(doc=5493,freq=1.0), product of:
             0.16396053 = queryWeight, product of:
               1.4897875 = boost
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.019911492 = queryNorm
             0.34545478 = fieldWeight in 5493, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.023563966 = weight(abstract_txt:this in 5493) [ClassicSimilarity], result of:
           0.023563966 = score(doc=5493,freq=4.0), product of:
             0.07812282 = queryWeight, product of:
               1.625974 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019911492 = queryNorm
             0.3016272 = fieldWeight in 5493, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.13446826 = weight(abstract_txt:participants in 5493) [ClassicSimilarity], result of:
           0.13446826 = score(doc=5493,freq=3.0), product of:
             0.23159125 = queryWeight, product of:
               2.1685097 = boost
               5.3636074 = idf(docFreq=562, maxDocs=44218)
               0.019911492 = queryNorm
             0.5806275 = fieldWeight in 5493, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.3636074 = idf(docFreq=562, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.047596984 = weight(abstract_txt:study in 5493) [ClassicSimilarity], result of:
           0.047596984 = score(doc=5493,freq=2.0), product of:
             0.15728064 = queryWeight, product of:
               2.3070781 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.019911492 = queryNorm
             0.30262455 = fieldWeight in 5493, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.18575978 = weight(abstract_txt:search in 5493) [ClassicSimilarity], result of:
           0.18575978 = score(doc=5493,freq=8.0), product of:
             0.28726107 = queryWeight, product of:
               3.9438741 = boost
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.019911492 = queryNorm
             0.6466584 = fieldWeight in 5493, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
         0.19787145 = weight(abstract_txt:usability in 5493) [ClassicSimilarity], result of:
           0.19787145 = score(doc=5493,freq=1.0), product of:
             0.5123354 = queryWeight, product of:
               4.163915 = boost
               6.1794343 = idf(docFreq=248, maxDocs=44218)
               0.019911492 = queryNorm
             0.38621464 = fieldWeight in 5493, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1794343 = idf(docFreq=248, maxDocs=44218)
               0.0625 = fieldNorm(doc=5493)
       0.36 = coord(9/25)
   

4. Bar-Ilan, J.; Keenoy, K.; Yaari, E.; Levene, M.: User rankings of search engine results (2007) 0.26

   0.26346627 = sum of:
     0.26346627 = product of:
       0.73185074 = sum of:
         0.0231093 = weight(abstract_txt:there in 470) [ClassicSimilarity], result of:
           0.0231093 = score(doc=470,freq=1.0), product of:
             0.09019383 = queryWeight, product of:
               1.1049511 = boost
               4.099491 = idf(docFreq=1992, maxDocs=44218)
               0.019911492 = queryNorm
             0.2562182 = fieldWeight in 470, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.099491 = idf(docFreq=1992, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.04095744 = weight(abstract_txt:factors in 470) [ClassicSimilarity], result of:
           0.04095744 = score(doc=470,freq=1.0), product of:
             0.13209128 = queryWeight, product of:
               1.3371857 = boost
               4.9611073 = idf(docFreq=841, maxDocs=44218)
               0.019911492 = queryNorm
             0.3100692 = fieldWeight in 470, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9611073 = idf(docFreq=841, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.047513545 = weight(abstract_txt:results in 470) [ClassicSimilarity], result of:
           0.047513545 = score(doc=470,freq=5.0), product of:
             0.09762724 = queryWeight, product of:
               1.4079454 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.019911492 = queryNorm
             0.48668328 = fieldWeight in 470, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.05664095 = weight(abstract_txt:engine in 470) [ClassicSimilarity], result of:
           0.05664095 = score(doc=470,freq=1.0), product of:
             0.16396053 = queryWeight, product of:
               1.4897875 = boost
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.019911492 = queryNorm
             0.34545478 = fieldWeight in 470, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.01666224 = weight(abstract_txt:this in 470) [ClassicSimilarity], result of:
           0.01666224 = score(doc=470,freq=2.0), product of:
             0.07812282 = queryWeight, product of:
               1.625974 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019911492 = queryNorm
             0.21328263 = fieldWeight in 470, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.07763529 = weight(abstract_txt:participants in 470) [ClassicSimilarity], result of:
           0.07763529 = score(doc=470,freq=1.0), product of:
             0.23159125 = queryWeight, product of:
               2.1685097 = boost
               5.3636074 = idf(docFreq=562, maxDocs=44218)
               0.019911492 = queryNorm
             0.33522546 = fieldWeight in 470, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3636074 = idf(docFreq=562, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.03365615 = weight(abstract_txt:study in 470) [ClassicSimilarity], result of:
           0.03365615 = score(doc=470,freq=1.0), product of:
             0.15728064 = queryWeight, product of:
               2.3070781 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.019911492 = queryNorm
             0.21398787 = fieldWeight in 470, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.24991606 = weight(abstract_txt:engines in 470) [ClassicSimilarity], result of:
           0.24991606 = score(doc=470,freq=4.0), product of:
             0.3771161 = queryWeight, product of:
               3.5724175 = boost
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.019911492 = queryNorm
             0.6627032 = fieldWeight in 470, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
         0.18575978 = weight(abstract_txt:search in 470) [ClassicSimilarity], result of:
           0.18575978 = score(doc=470,freq=8.0), product of:
             0.28726107 = queryWeight, product of:
               3.9438741 = boost
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.019911492 = queryNorm
             0.6466584 = fieldWeight in 470, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.0625 = fieldNorm(doc=470)
       0.36 = coord(9/25)
   

5. Lewandowski, D.: ¬The retrieval effectiveness of web search engines : considering results descriptions (2008) 0.26

   0.25656682 = sum of:
     0.25656682 = product of:
       0.7126856 = sum of:
         0.0231093 = weight(abstract_txt:there in 2345) [ClassicSimilarity], result of:
           0.0231093 = score(doc=2345,freq=1.0), product of:
             0.09019383 = queryWeight, product of:
               1.1049511 = boost
               4.099491 = idf(docFreq=1992, maxDocs=44218)
               0.019911492 = queryNorm
             0.2562182 = fieldWeight in 2345, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.099491 = idf(docFreq=1992, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.042181175 = weight(abstract_txt:purpose in 2345) [ClassicSimilarity], result of:
           0.042181175 = score(doc=2345,freq=2.0), product of:
             0.10691897 = queryWeight, product of:
               1.2030455 = boost
               4.463432 = idf(docFreq=1384, maxDocs=44218)
               0.019911492 = queryNorm
             0.39451537 = fieldWeight in 2345, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.463432 = idf(docFreq=1384, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.029662384 = weight(abstract_txt:paper in 2345) [ClassicSimilarity], result of:
           0.029662384 = score(doc=2345,freq=2.0), product of:
             0.096785456 = queryWeight, product of:
               1.4018623 = boost
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.019911492 = queryNorm
             0.30647564 = fieldWeight in 2345, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.467376 = idf(docFreq=3749, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.056218784 = weight(abstract_txt:results in 2345) [ClassicSimilarity], result of:
           0.056218784 = score(doc=2345,freq=7.0), product of:
             0.09762724 = queryWeight, product of:
               1.4079454 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.019911492 = queryNorm
             0.57585144 = fieldWeight in 2345, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.0801024 = weight(abstract_txt:engine in 2345) [ClassicSimilarity], result of:
           0.0801024 = score(doc=2345,freq=2.0), product of:
             0.16396053 = queryWeight, product of:
               1.4897875 = boost
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.019911492 = queryNorm
             0.48854682 = fieldWeight in 2345, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5272765 = idf(docFreq=477, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.026345316 = weight(abstract_txt:this in 2345) [ClassicSimilarity], result of:
           0.026345316 = score(doc=2345,freq=5.0), product of:
             0.07812282 = queryWeight, product of:
               1.625974 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019911492 = queryNorm
             0.33722946 = fieldWeight in 2345, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.05829416 = weight(abstract_txt:study in 2345) [ClassicSimilarity], result of:
           0.05829416 = score(doc=2345,freq=3.0), product of:
             0.15728064 = queryWeight, product of:
               2.3070781 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.019911492 = queryNorm
             0.37063786 = fieldWeight in 2345, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.24991606 = weight(abstract_txt:engines in 2345) [ClassicSimilarity], result of:
           0.24991606 = score(doc=2345,freq=4.0), product of:
             0.3771161 = queryWeight, product of:
               3.5724175 = boost
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.019911492 = queryNorm
             0.6627032 = fieldWeight in 2345, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.3016257 = idf(docFreq=598, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
         0.14685601 = weight(abstract_txt:search in 2345) [ClassicSimilarity], result of:
           0.14685601 = score(doc=2345,freq=5.0), product of:
             0.28726107 = queryWeight, product of:
               3.9438741 = boost
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.019911492 = queryNorm
             0.5112284 = fieldWeight in 2345, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.6580524 = idf(docFreq=3098, maxDocs=44218)
               0.0625 = fieldNorm(doc=2345)
       0.36 = coord(9/25)