Document (#21515)

Author
Hollaar, L.A.
Title
Special-purpose hardware for information retrieval
Source
Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
Imprint
Englewood Cliffs, NJ : Prentice Hall
Year
1992
Pages
S.443-458
Abstract
Many approaches for using special purpose hardware to enhance the performance of an information retrieval have been proposed or implemented. Rather than using conventional digital computers or parallel processors developed for general applications, these special purpose processors have been designed specifically for particlar facets of information retrieval, such as the rapid searching of unstructured data or manipulating surrogates or indices for the information in the database

Similar documents (content)

  1. Rasmussen, E.M.: Parallel information processing (1992) 0.47
    0.47237083 = sum of:
      0.47237083 = product of:
        1.6870387 = sum of:
          0.21861477 = weight(abstract_txt:parallel in 345) [ClassicSimilarity], result of:
            0.21861477 = score(doc=345,freq=3.0), product of:
              0.15744689 = queryWeight, product of:
                1.388211 = boost
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.01768495 = queryNorm
              1.3884985 = fieldWeight in 345, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
          0.039534293 = weight(abstract_txt:using in 345) [ClassicSimilarity], result of:
            0.039534293 = score(doc=345,freq=1.0), product of:
              0.09149151 = queryWeight, product of:
                1.4965589 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.01768495 = queryNorm
              0.43210885 = fieldWeight in 345, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
          0.22112161 = weight(abstract_txt:surrogates in 345) [ClassicSimilarity], result of:
            0.22112161 = score(doc=345,freq=1.0), product of:
              0.22881033 = queryWeight, product of:
                1.673502 = boost
                7.731176 = idf(docFreq=52, maxDocs=44421)
                0.01768495 = queryNorm
              0.966397 = fieldWeight in 345, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.731176 = idf(docFreq=52, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
          0.26590684 = weight(abstract_txt:hardware in 345) [ClassicSimilarity], result of:
            0.26590684 = score(doc=345,freq=1.0), product of:
              0.32600018 = queryWeight, product of:
                2.8249602 = boost
                6.5253177 = idf(docFreq=176, maxDocs=44421)
                0.01768495 = queryNorm
              0.8156647 = fieldWeight in 345, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5253177 = idf(docFreq=176, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
          0.18055628 = weight(abstract_txt:purpose in 345) [ClassicSimilarity], result of:
            0.18055628 = score(doc=345,freq=2.0), product of:
              0.22881983 = queryWeight, product of:
                2.8986506 = boost
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.01768495 = queryNorm
              0.7890762 = fieldWeight in 345, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
          0.1771739 = weight(abstract_txt:special in 345) [ClassicSimilarity], result of:
            0.1771739 = score(doc=345,freq=1.0), product of:
              0.28468314 = queryWeight, product of:
                3.2331803 = boost
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.01768495 = queryNorm
              0.62235475 = fieldWeight in 345, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
          0.58413094 = weight(abstract_txt:processors in 345) [ClassicSimilarity], result of:
            0.58413094 = score(doc=345,freq=1.0), product of:
              0.55089855 = queryWeight, product of:
                3.6723092 = boost
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.01768495 = queryNorm
              1.060324 = fieldWeight in 345, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.125 = fieldNorm(doc=345)
        0.28 = coord(7/25)
    
  2. Grossman, D.A.: Integrating structured data and text : a relational approach (1997) 0.14
    0.14194484 = sum of:
      0.14194484 = product of:
        0.50694585 = sum of:
          0.06128785 = weight(abstract_txt:performance in 779) [ClassicSimilarity], result of:
            0.06128785 = score(doc=779,freq=3.0), product of:
              0.081700206 = queryWeight, product of:
                4.619759 = idf(docFreq=1189, maxDocs=44421)
                0.01768495 = queryNorm
              0.7501554 = fieldWeight in 779, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.619759 = idf(docFreq=1189, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
          0.09466298 = weight(abstract_txt:parallel in 779) [ClassicSimilarity], result of:
            0.09466298 = score(doc=779,freq=1.0), product of:
              0.15744689 = queryWeight, product of:
                1.388211 = boost
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.01768495 = queryNorm
              0.60123754 = fieldWeight in 779, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
          0.029650718 = weight(abstract_txt:using in 779) [ClassicSimilarity], result of:
            0.029650718 = score(doc=779,freq=1.0), product of:
              0.09149151 = queryWeight, product of:
                1.4965589 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.01768495 = queryNorm
              0.32408163 = fieldWeight in 779, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
          0.028733214 = weight(abstract_txt:information in 779) [ClassicSimilarity], result of:
            0.028733214 = score(doc=779,freq=2.0), product of:
              0.089594245 = queryWeight, product of:
                2.0943944 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.01768495 = queryNorm
              0.3207038 = fieldWeight in 779, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
          0.06397624 = weight(abstract_txt:retrieval in 779) [ClassicSimilarity], result of:
            0.06397624 = score(doc=779,freq=2.0), product of:
              0.13880025 = queryWeight, product of:
                2.2575853 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.01768495 = queryNorm
              0.46092314 = fieldWeight in 779, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
          0.09575443 = weight(abstract_txt:purpose in 779) [ClassicSimilarity], result of:
            0.09575443 = score(doc=779,freq=1.0), product of:
              0.22881983 = queryWeight, product of:
                2.8986506 = boost
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.01768495 = queryNorm
              0.41847086 = fieldWeight in 779, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
          0.13288042 = weight(abstract_txt:special in 779) [ClassicSimilarity], result of:
            0.13288042 = score(doc=779,freq=1.0), product of:
              0.28468314 = queryWeight, product of:
                3.2331803 = boost
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.01768495 = queryNorm
              0.46676606 = fieldWeight in 779, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.09375 = fieldNorm(doc=779)
        0.28 = coord(7/25)
    
  3. Schoonbaert, D.; Rosenberg, V.: Personal Bibliographic Systems (PBS) (2009) 0.13
    0.12897015 = sum of:
      0.12897015 = product of:
        0.64485073 = sum of:
          0.023944344 = weight(abstract_txt:information in 847) [ClassicSimilarity], result of:
            0.023944344 = score(doc=847,freq=2.0), product of:
              0.089594245 = queryWeight, product of:
                2.0943944 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.01768495 = queryNorm
              0.26725316 = fieldWeight in 847, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.078125 = fieldNorm(doc=847)
          0.06529548 = weight(abstract_txt:retrieval in 847) [ClassicSimilarity], result of:
            0.06529548 = score(doc=847,freq=3.0), product of:
              0.13880025 = queryWeight, product of:
                2.2575853 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.01768495 = queryNorm
              0.4704277 = fieldWeight in 847, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.078125 = fieldNorm(doc=847)
          0.07979537 = weight(abstract_txt:purpose in 847) [ClassicSimilarity], result of:
            0.07979537 = score(doc=847,freq=1.0), product of:
              0.22881983 = queryWeight, product of:
                2.8986506 = boost
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.01768495 = queryNorm
              0.34872574 = fieldWeight in 847, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.078125 = fieldNorm(doc=847)
          0.11073369 = weight(abstract_txt:special in 847) [ClassicSimilarity], result of:
            0.11073369 = score(doc=847,freq=1.0), product of:
              0.28468314 = queryWeight, product of:
                3.2331803 = boost
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.01768495 = queryNorm
              0.38897172 = fieldWeight in 847, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.078125 = fieldNorm(doc=847)
          0.36508182 = weight(abstract_txt:processors in 847) [ClassicSimilarity], result of:
            0.36508182 = score(doc=847,freq=1.0), product of:
              0.55089855 = queryWeight, product of:
                3.6723092 = boost
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.01768495 = queryNorm
              0.66270244 = fieldWeight in 847, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.078125 = fieldNorm(doc=847)
        0.2 = coord(5/25)
    
  4. Cathey, R.J.; Jensen, E.C.; Beitzel, S.M.; Frieder, O.; Grossman, D.: Exploiting parallelism to support scalable hierarchical clustering (2007) 0.13
    0.12585382 = sum of:
      0.12585382 = product of:
        0.6292691 = sum of:
          0.031895187 = weight(abstract_txt:rather in 1448) [ClassicSimilarity], result of:
            0.031895187 = score(doc=1448,freq=1.0), product of:
              0.09989834 = queryWeight, product of:
                1.105777 = boost
                5.108423 = idf(docFreq=729, maxDocs=44421)
                0.01768495 = queryNorm
              0.31927645 = fieldWeight in 1448, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.108423 = idf(docFreq=729, maxDocs=44421)
                0.0625 = fieldNorm(doc=1448)
          0.1262173 = weight(abstract_txt:parallel in 1448) [ClassicSimilarity], result of:
            0.1262173 = score(doc=1448,freq=4.0), product of:
              0.15744689 = queryWeight, product of:
                1.388211 = boost
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.01768495 = queryNorm
              0.80165005 = fieldWeight in 1448, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.0625 = fieldNorm(doc=1448)
          0.027954966 = weight(abstract_txt:using in 1448) [ClassicSimilarity], result of:
            0.027954966 = score(doc=1448,freq=2.0), product of:
              0.09149151 = queryWeight, product of:
                1.4965589 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.01768495 = queryNorm
              0.3055471 = fieldWeight in 1448, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.0625 = fieldNorm(doc=1448)
          0.030158691 = weight(abstract_txt:retrieval in 1448) [ClassicSimilarity], result of:
            0.030158691 = score(doc=1448,freq=1.0), product of:
              0.13880025 = queryWeight, product of:
                2.2575853 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.01768495 = queryNorm
              0.21728125 = fieldWeight in 1448, 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=1448)
          0.41304293 = weight(abstract_txt:processors in 1448) [ClassicSimilarity], result of:
            0.41304293 = score(doc=1448,freq=2.0), product of:
              0.55089855 = queryWeight, product of:
                3.6723092 = boost
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.01768495 = queryNorm
              0.74976224 = fieldWeight in 1448, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.0625 = fieldNorm(doc=1448)
        0.2 = coord(5/25)
    
  5. Hider, P.M.: Constructing an index of search goal redefinition through transaction log analysis (2007) 0.12
    0.1150312 = sum of:
      0.1150312 = product of:
        0.4108257 = sum of:
          0.025254056 = weight(abstract_txt:designed in 1826) [ClassicSimilarity], result of:
            0.025254056 = score(doc=1826,freq=1.0), product of:
              0.09345952 = queryWeight, product of:
                1.0695478 = boost
                4.941053 = idf(docFreq=862, maxDocs=44421)
                0.01768495 = queryNorm
              0.27021384 = fieldWeight in 1826, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.941053 = idf(docFreq=862, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
          0.013712078 = weight(abstract_txt:have in 1826) [ClassicSimilarity], result of:
            0.013712078 = score(doc=1826,freq=1.0), product of:
              0.07836972 = queryWeight, product of:
                1.3850887 = boost
                3.199388 = idf(docFreq=4924, maxDocs=44421)
                0.01768495 = queryNorm
              0.17496653 = fieldWeight in 1826, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.199388 = idf(docFreq=4924, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
          0.05522007 = weight(abstract_txt:parallel in 1826) [ClassicSimilarity], result of:
            0.05522007 = score(doc=1826,freq=1.0), product of:
              0.15744689 = queryWeight, product of:
                1.388211 = boost
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.01768495 = queryNorm
              0.3507219 = fieldWeight in 1826, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4132004 = idf(docFreq=197, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
          0.1835656 = weight(abstract_txt:indices in 1826) [ClassicSimilarity], result of:
            0.1835656 = score(doc=1826,freq=5.0), product of:
              0.20508803 = queryWeight, product of:
                1.5843772 = boost
                7.319441 = idf(docFreq=79, maxDocs=44421)
                0.01768495 = queryNorm
              0.8950576 = fieldWeight in 1826, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                7.319441 = idf(docFreq=79, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
          0.016761042 = weight(abstract_txt:information in 1826) [ClassicSimilarity], result of:
            0.016761042 = score(doc=1826,freq=2.0), product of:
              0.089594245 = queryWeight, product of:
                2.0943944 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.01768495 = queryNorm
              0.18707721 = fieldWeight in 1826, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
          0.037319478 = weight(abstract_txt:retrieval in 1826) [ClassicSimilarity], result of:
            0.037319478 = score(doc=1826,freq=2.0), product of:
              0.13880025 = queryWeight, product of:
                2.2575853 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.01768495 = queryNorm
              0.26887184 = fieldWeight in 1826, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
          0.07899337 = weight(abstract_txt:purpose in 1826) [ClassicSimilarity], result of:
            0.07899337 = score(doc=1826,freq=2.0), product of:
              0.22881983 = queryWeight, product of:
                2.8986506 = boost
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.01768495 = queryNorm
              0.34522083 = fieldWeight in 1826, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4636893 = idf(docFreq=1390, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1826)
        0.28 = coord(7/25)