-
Chang, S.J.; Rice, R.R.: Browsing: a multidimensional framework (1993)
0.02
0.02002184 = product of:
0.09343526 = sum of:
0.051419973 = weight(_text_:wide in 349) [ClassicSimilarity], result of:
0.051419973 = score(doc=349,freq=2.0), product of:
0.1312982 = queryWeight, product of:
4.4307585 = idf(docFreq=1430, maxDocs=44218)
0.029633347 = queryNorm
0.3916274 = fieldWeight in 349, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4307585 = idf(docFreq=1430, maxDocs=44218)
0.0625 = fieldNorm(doc=349)
0.01804893 = weight(_text_:information in 349) [ClassicSimilarity], result of:
0.01804893 = score(doc=349,freq=10.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3469568 = fieldWeight in 349, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=349)
0.023966359 = weight(_text_:retrieval in 349) [ClassicSimilarity], result of:
0.023966359 = score(doc=349,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 349, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=349)
0.21428572 = coord(3/14)
- Abstract
- State of the art review of browsing from many different multidisciplinary contexts, integrating the diverse literatures on browsing: library and information science (information searching); end user information retrieval and system design (database searching); consumer behaviour (store shopping); mass media audience (television channel switching); organizational communication; and wayfinding and environmental design. Considers what constitutes browsing, and what are the consequences of browsing. Attempts to identify the underlying common dimensions of browsing and the consequences of browsing in a wide variety of human activities
- Imprint
- Medford, NJ : Learned Information
- Source
- Annual review of information science and technology. 28(1993), S.231-276
-
Buckland, M.K.; Liu, Z.: History of information science (1995)
0.01
0.012322088 = product of:
0.057503074 = sum of:
0.022830293 = weight(_text_:information in 4226) [ClassicSimilarity], result of:
0.022830293 = score(doc=4226,freq=16.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.43886948 = fieldWeight in 4226, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=4226)
0.023966359 = weight(_text_:retrieval in 4226) [ClassicSimilarity], result of:
0.023966359 = score(doc=4226,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 4226, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=4226)
0.010706427 = product of:
0.032119278 = sum of:
0.032119278 = weight(_text_:22 in 4226) [ClassicSimilarity], result of:
0.032119278 = score(doc=4226,freq=2.0), product of:
0.103770934 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.029633347 = queryNorm
0.30952093 = fieldWeight in 4226, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=4226)
0.33333334 = coord(1/3)
0.21428572 = coord(3/14)
- Abstract
- State of the art review of the historical development of information science as deemed to be covered by the particular interests of memebers of the American Society for Information Science, as defined as the representation, storage, transmission, selection, retrieval, filtering, and use of documents and messages. Arranges the references cited roughly according to the classification scheme used by Information Science Abstracts, and so uses the headings: background; information science; techniques and technology; information related behaviour; application areas; social aspects; education for information science; institutions; individuals; geographical areas; and conclusions
- Date
- 13. 6.1996 19:22:20
- Source
- Annual review of information science and technology. 30(1995), S.385-416
-
Haas, S.W.: Natural language processing : toward large-scale, robust systems (1996)
0.01
0.009875985 = product of:
0.046087928 = sum of:
0.011415146 = weight(_text_:information in 7415) [ClassicSimilarity], result of:
0.011415146 = score(doc=7415,freq=4.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.21943474 = fieldWeight in 7415, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=7415)
0.023966359 = weight(_text_:retrieval in 7415) [ClassicSimilarity], result of:
0.023966359 = score(doc=7415,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 7415, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=7415)
0.010706427 = product of:
0.032119278 = sum of:
0.032119278 = weight(_text_:22 in 7415) [ClassicSimilarity], result of:
0.032119278 = score(doc=7415,freq=2.0), product of:
0.103770934 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.029633347 = queryNorm
0.30952093 = fieldWeight in 7415, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=7415)
0.33333334 = coord(1/3)
0.21428572 = coord(3/14)
- Abstract
- State of the art review of natural language processing updating an earlier review published in ARIST 22(1987). Discusses important developments that have allowed for significant advances in the field of natural language processing: materials and resources; knowledge based systems and statistical approaches; and a strong emphasis on evaluation. Reviews some natural language processing applications and common problems still awaiting solution. Considers closely related applications such as language generation and th egeneration phase of machine translation which face the same problems as natural language processing. Covers natural language methodologies for information retrieval only briefly
- Source
- Annual review of information science and technology. 31(1996), S.83-119
-
Harter, S.P.; Hert, C.A.: Evaluation of information retrieval systems : approaches, issues, and methods (1997)
0.01
0.009356101 = product of:
0.065492705 = sum of:
0.014125523 = weight(_text_:information in 2264) [ClassicSimilarity], result of:
0.014125523 = score(doc=2264,freq=8.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.27153665 = fieldWeight in 2264, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=2264)
0.05136718 = weight(_text_:retrieval in 2264) [ClassicSimilarity], result of:
0.05136718 = score(doc=2264,freq=12.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.5730491 = fieldWeight in 2264, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=2264)
0.14285715 = coord(2/14)
- Abstract
- State of the art review of information retrieval systems, defined as systems retrieving documents a sopposed to numerical data. Explains the classic Cranfield studies that have served as a standard for retrieval testing since the 1960s and discusses the Cranfield model and its relevance based measures of retrieval effectiveness. Details sosme of the problems with the Cranfield instruments and issues of validity and reliability, generalizability, usefulness and basic concepts. Discusses the evaluation of the Internet search engines in light of the Cranfield model, noting the very real differences between batch systems (Cranfield) and interactive systems (Internet). Because the Internet collection is not fixed, it is impossible to determine recall as a measure of retrieval effectiveness. considers future directions in evaluating information retrieval systems
- Source
- Annual review of information science and technology. 32(1997), S.3-94
-
Oard, D.W.; Diekema, A.R.: Cross-language information retrieval (1999)
0.01
0.008845377 = product of:
0.061917633 = sum of:
0.019976506 = weight(_text_:information in 4690) [ClassicSimilarity], result of:
0.019976506 = score(doc=4690,freq=4.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3840108 = fieldWeight in 4690, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.109375 = fieldNorm(doc=4690)
0.04194113 = weight(_text_:retrieval in 4690) [ClassicSimilarity], result of:
0.04194113 = score(doc=4690,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.46789268 = fieldWeight in 4690, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.109375 = fieldNorm(doc=4690)
0.14285715 = coord(2/14)
- Source
- Annual review of information science and technology. 33(1998), S.223-255
-
Twidale, M.B.; Nichols, D.M.: Computer supported cooperative work in information search and retrieval (1999)
0.01
0.008845377 = product of:
0.061917633 = sum of:
0.019976506 = weight(_text_:information in 4691) [ClassicSimilarity], result of:
0.019976506 = score(doc=4691,freq=4.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3840108 = fieldWeight in 4691, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.109375 = fieldNorm(doc=4691)
0.04194113 = weight(_text_:retrieval in 4691) [ClassicSimilarity], result of:
0.04194113 = score(doc=4691,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.46789268 = fieldWeight in 4691, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.109375 = fieldNorm(doc=4691)
0.14285715 = coord(2/14)
- Source
- Annual review of information science and technology. 33(1998), S.259-320
-
Kantor, P.B.: Information retrieval techniques (1994)
0.01
0.008577979 = product of:
0.06004585 = sum of:
0.016016837 = weight(_text_:information in 1056) [ClassicSimilarity], result of:
0.016016837 = score(doc=1056,freq=14.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3078936 = fieldWeight in 1056, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.046875 = fieldNorm(doc=1056)
0.044029012 = weight(_text_:retrieval in 1056) [ClassicSimilarity], result of:
0.044029012 = score(doc=1056,freq=12.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.49118498 = fieldWeight in 1056, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=1056)
0.14285715 = coord(2/14)
- Abstract
- State of the art review of information retrieval techniques viewed in terms of the growing effort to implement concept based retrieval in content based algorithms. Identifies trends in the automation of indexing, retrieval, and the interaction between systems and users. Identifies 3 central issues: ways in which systems describe documents for purposes of information retrieval; ways in which systems compute the degree of match between a given document and the current state of the query; amd what the systems do with the information that they obtain from the users. Looks at information retrieval techniques in terms of: location, navigation; indexing; documents; queries; structures; concepts; matching documents to queries; restoring query structure; algorithms and content versus concepts; formulation of concepts in terms of contents; formulation of concepts with the assistance of the users; complex system codes versus underlying principles; and system evaluation
- Imprint
- Medford, NJ : Learned Information Inc.
- Source
- Annual review of information science and technology. 29(1994), S.53-90
-
Drenth, H.; Morris, A.; Tseng, G.: Expert systems as information intermediaries (1991)
0.01
0.008508556 = product of:
0.059559885 = sum of:
0.01804893 = weight(_text_:information in 3695) [ClassicSimilarity], result of:
0.01804893 = score(doc=3695,freq=10.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3469568 = fieldWeight in 3695, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=3695)
0.041510954 = weight(_text_:retrieval in 3695) [ClassicSimilarity], result of:
0.041510954 = score(doc=3695,freq=6.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.46309367 = fieldWeight in 3695, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=3695)
0.14285715 = coord(2/14)
- Abstract
- Points out that expert systems have great potential to enhance access to information retrieval systems as they use expertise to carry out tasks such as diagnosis and planning and make expertise available to nonexperts. Potential end users of online information retrieval systems are frequently deterred by the complexity of theses systems. Expert systems can mediate between the searcher and the information retrieval system and might be the key both to increasing and end user searching and to improving the quality of searches overall
- Source
- Annual review of information science and technology. 26(1991), S.113-154
-
Shaw, D.: ¬The human-computer interface for information retrieval (1991)
0.01
0.008247707 = product of:
0.057733946 = sum of:
0.015792815 = weight(_text_:information in 5261) [ClassicSimilarity], result of:
0.015792815 = score(doc=5261,freq=10.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3035872 = fieldWeight in 5261, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=5261)
0.04194113 = weight(_text_:retrieval in 5261) [ClassicSimilarity], result of:
0.04194113 = score(doc=5261,freq=8.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.46789268 = fieldWeight in 5261, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=5261)
0.14285715 = coord(2/14)
- Abstract
- Discusses the human-computer interface for information retrieval and notes that research on human-computer interface design has generated many widely-accepted principles of interface design which should be of interest and value to designers of information retrieval systems. Work on display features such as highlighting, colour, icons, and windows has received considerable attention. research has also focused on how the user interacts with the system, whether by commands, menus, or direct manipulation. Studies of interfaces for information retrieval systems reveal that online searching has emphasised developments of front ends, with some novel uses of graphics. CD-ROM and optical media are characterised by interface diversity, again with some inclusion of graphic interfaces. Online catalogues and full text data bases have provided interesting comparisons of mode of interaction
- Source
- Annual review of information science and technology. 26(1991), S.155-195
-
Schamber, L.: Relevance and information behavior (1994)
0.01
0.007892762 = product of:
0.055249333 = sum of:
0.021355784 = weight(_text_:information in 1004) [ClassicSimilarity], result of:
0.021355784 = score(doc=1004,freq=14.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.41052482 = fieldWeight in 1004, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=1004)
0.033893548 = weight(_text_:retrieval in 1004) [ClassicSimilarity], result of:
0.033893548 = score(doc=1004,freq=4.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.37811437 = fieldWeight in 1004, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=1004)
0.14285715 = coord(2/14)
- Abstract
- State of the art review of relevance as it relates to the behaviour of users seeking and using information rather than in evaluating the performance of information retrieval systems. Views relevance as a manifestation of human information behaviour and excludes works that view relevance only as matching or computational functions of information retrieval systems
- Imprint
- Medford, NJ : Learned Information Inc.
- Source
- Annual review of information science and technology. 29(1994), S.3-48
-
Chowdhury, G.G.: ¬The Internet and information retrieval research : a brief review (1999)
0.01
0.007148144 = product of:
0.050037004 = sum of:
0.016143454 = weight(_text_:information in 3424) [ClassicSimilarity], result of:
0.016143454 = score(doc=3424,freq=8.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3103276 = fieldWeight in 3424, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=3424)
0.033893548 = weight(_text_:retrieval in 3424) [ClassicSimilarity], result of:
0.033893548 = score(doc=3424,freq=4.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.37811437 = fieldWeight in 3424, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=3424)
0.14285715 = coord(2/14)
- Abstract
- The Internet and related information services attract increasing interest from information retrieval researchers. A survey of recent publications shows that frequent topics are the effectiveness of search engines, information validation and quality, user studies, design of user interfaces, data structures and metadata, classification and vocabulary based aids, and indexing and search agents. Current research in these areas is briefly discussed. The changing balance between CD-ROM sources and traditional online searching is quite important and is noted
-
Sugar, W.: User-centered perspective of information retrieval research and analysis methods (1995)
0.01
0.007069463 = product of:
0.04948624 = sum of:
0.013536699 = weight(_text_:information in 4487) [ClassicSimilarity], result of:
0.013536699 = score(doc=4487,freq=10.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.2602176 = fieldWeight in 4487, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.046875 = fieldNorm(doc=4487)
0.03594954 = weight(_text_:retrieval in 4487) [ClassicSimilarity], result of:
0.03594954 = score(doc=4487,freq=8.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.40105087 = fieldWeight in 4487, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=4487)
0.14285715 = coord(2/14)
- Abstract
- Presents a state of the art review of the underlying theories of and analysis methods used to study the ways in which users (end users) receive and interpret information through information retrieval systems and looks at the potential for refining theories and adopting new analysis methods. Focuses on approaches that advocate the user centred perspective, including: the cognitive approach; and the holistic approach. Identifies and summarizes the significant studies and ideas since 1986 that are represented by these approaches and looks toward the design of more effective systems that are user oriented and incorporate features such as filtering that would provide retrieval results based on individual or group preferences. Concludes that systems designed from the user centred perspective would not only serve the intended audience but would further the user centred perspective of the entire information retrieval discipline
- Source
- Annual review of information science and technology. 30(1995), S.77-109
-
Sabourin, C.F. (Bearb.): Computational linguistics in information science : bibliography (1994)
0.01
0.006776251 = product of:
0.047433753 = sum of:
0.017475804 = weight(_text_:information in 8280) [ClassicSimilarity], result of:
0.017475804 = score(doc=8280,freq=6.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.3359395 = fieldWeight in 8280, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.078125 = fieldNorm(doc=8280)
0.029957948 = weight(_text_:retrieval in 8280) [ClassicSimilarity], result of:
0.029957948 = score(doc=8280,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.33420905 = fieldWeight in 8280, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=8280)
0.14285715 = coord(2/14)
- Abstract
- The bibliography covers information retrieval (2100 refs.), fulltext (890) or conceptual (60), automatic indexing (930), information extraction (520), query languages (1090), etc.; altogether 6390 references, fully indexed
-
Rasmussen, E.M.: Indexing images (1997)
0.01
0.0060004764 = product of:
0.042003334 = sum of:
0.0060537956 = weight(_text_:information in 2215) [ClassicSimilarity], result of:
0.0060537956 = score(doc=2215,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.116372846 = fieldWeight in 2215, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.046875 = fieldNorm(doc=2215)
0.03594954 = weight(_text_:retrieval in 2215) [ClassicSimilarity], result of:
0.03594954 = score(doc=2215,freq=8.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.40105087 = fieldWeight in 2215, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=2215)
0.14285715 = coord(2/14)
- Abstract
- State of the art review of methods available for accessing collections of digital images by means of manual and automatic indexing. Distinguishes between concept based indexing, in which images and the objects represented, are manually identified and described in terms of what they are and represent, and content based indexing, in which features of images (such as colours) are automatically identified and extracted. The main discussion is arranged in 6 sections: studies of image systems and their use; approaches to indexing images; image attributes; concept based indexing; content based indexing; and browsing in image retrieval. The performance of current image retrieval systems is largely untested and they still lack an extensive history and tradition of evaluation and standards for assessing performance. Concludes that there is a significant amount of research to be done before image retrieval systems can reach the state of development of text retrieval systems
- Source
- Annual review of information science and technology. 32(1997), S.169-196
-
Efthimiadis, E.N.: Query expansion (1996)
0.01
0.00599504 = product of:
0.041965276 = sum of:
0.008071727 = weight(_text_:information in 4847) [ClassicSimilarity], result of:
0.008071727 = score(doc=4847,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.1551638 = fieldWeight in 4847, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=4847)
0.033893548 = weight(_text_:retrieval in 4847) [ClassicSimilarity], result of:
0.033893548 = score(doc=4847,freq=4.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.37811437 = fieldWeight in 4847, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=4847)
0.14285715 = coord(2/14)
- Abstract
- State of the art review of query expansion (or term expansion) as the process of supplementing the original query with additional terms in order to improve retrieval performance. Research in the subject is presented in a highly structured way and is presented according to 3 types of query expansion; manual query expansion; automatic query expansion; and interactive query expansion
- Source
- Annual review of information science and technology. 31(1996), S.121-187
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Barata, K.: Bibliography of electronic records research to May of 1997 (1997)
0.01
0.0052298876 = product of:
0.07321842 = sum of:
0.07321842 = weight(_text_:elektronische in 1712) [ClassicSimilarity], result of:
0.07321842 = score(doc=1712,freq=2.0), product of:
0.14013545 = queryWeight, product of:
4.728978 = idf(docFreq=1061, maxDocs=44218)
0.029633347 = queryNorm
0.5224832 = fieldWeight in 1712, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.728978 = idf(docFreq=1061, maxDocs=44218)
0.078125 = fieldNorm(doc=1712)
0.071428575 = coord(1/14)
- Form
- Elektronische Dokumente
-
Paris, C.G.: Chemical structure handling by computer (1997)
0.01
0.005054501 = product of:
0.035381503 = sum of:
0.011415146 = weight(_text_:information in 2254) [ClassicSimilarity], result of:
0.011415146 = score(doc=2254,freq=4.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.21943474 = fieldWeight in 2254, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=2254)
0.023966359 = weight(_text_:retrieval in 2254) [ClassicSimilarity], result of:
0.023966359 = score(doc=2254,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 2254, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=2254)
0.14285715 = coord(2/14)
- Abstract
- State of the art review of computerized chemical structure handling and the way in which the need for representation of chemical structures and structure diagrams, by computer software, has created a sub domain of information retrieval that integrates the requirements of research chemists for graph-theoretic algorithms with the database designs of computer science. Identifies and discusses the current research topics and selected portions of the literature, particularly during the period of its most rapid expansion between 1989 and 1996
- Source
- Annual review of information science and technology. 32(1997), S.271-337
-
Taylor, A.G.: Enhancing subject access in online systems : the year's work in subject analysis, 1991 (1992)
0.00
0.0045768693 = product of:
0.032038085 = sum of:
0.008071727 = weight(_text_:information in 1504) [ClassicSimilarity], result of:
0.008071727 = score(doc=1504,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.1551638 = fieldWeight in 1504, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=1504)
0.023966359 = weight(_text_:retrieval in 1504) [ClassicSimilarity], result of:
0.023966359 = score(doc=1504,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 1504, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=1504)
0.14285715 = coord(2/14)
- Abstract
- The research literature published in 1991 in the following categories is examined: users and subject searching, subject access in online catalogs, subject cataloging and indexing, information retrieval, thesaurus and indexing approaches, classification, and specialized subjects and materials. The preponderance of the research dealt with improving subject access in online systems. This seems to have been the result of acceptance by many researchers of a number of previously researched hypotheses that, taken together, indicate that improving online systems holds more promise than trying to perfect the processes of subject analysis
-
Stone, A.T.: That elusive concept of 'aboutness' : the year's work in subject analysis, 1992 (1993)
0.00
0.0045768693 = product of:
0.032038085 = sum of:
0.008071727 = weight(_text_:information in 5353) [ClassicSimilarity], result of:
0.008071727 = score(doc=5353,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.1551638 = fieldWeight in 5353, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=5353)
0.023966359 = weight(_text_:retrieval in 5353) [ClassicSimilarity], result of:
0.023966359 = score(doc=5353,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 5353, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=5353)
0.14285715 = coord(2/14)
- Abstract
- Interest in classification theory and in facet-based systems was more evident during 1992, the year that marked the one hundredth anniversary of the birth of Ranganathan. Efforts to simplify subject cataloging routines include exploration of automatic and semiautomatic methods. Solutions to online subject searching problems might be shifting to the domains of information-retrieval experts. The 1992 subject analysis literature is examined and described using the following categories: theoretical foundations, cataloging practices, subject analysis in online environments, and specialized materials and topics
-
Bawden, D.: Browsing : theory and practice (1993)
0.00
0.004501639 = product of:
0.03151147 = sum of:
0.013536699 = weight(_text_:information in 3733) [ClassicSimilarity], result of:
0.013536699 = score(doc=3733,freq=10.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.2602176 = fieldWeight in 3733, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.046875 = fieldNorm(doc=3733)
0.01797477 = weight(_text_:retrieval in 3733) [ClassicSimilarity], result of:
0.01797477 = score(doc=3733,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.20052543 = fieldWeight in 3733, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=3733)
0.14285715 = coord(2/14)
- Abstract
- Presents a selective literature review covering the process of browsing as a means of searching for information. References are selected in order to illustrate the major themes and to bring out points which have not been emphasised before. The main points covered in the review include: consideration of browsing as an important, but under rated and little understood, form of information access; the ability in browsing to find analogies, connections, and new lines of thought; the potential of browsings as an ideal technique for accasional or non expert users; the ability to apply browsing to both paper based and computerized information retrieval; and the ability to search for information in a semi-random fashion leading to serendipitous linkage. Concludes that, despite the acknowledges importance of browsing, the increased effort being expended in making computerized systems browsable and the many references to the concept in the computer literature, there is still a lack of real understanding of the basic concepts of the process
- Source
- Perspectives in information management. 3(1993) no.1, S.67-81
