-
Matthews, J.R.; Lawrence, G.S.; Ferguson, D.K.: Using online catalogs : a nationwide survey, a report of a study sponsored by the Council on Library Resources (1983)
0.15
0.15406887 = product of:
0.3851722 = sum of:
0.10317227 = weight(_text_:allgemeines in 4168) [ClassicSimilarity], result of:
0.10317227 = score(doc=4168,freq=4.0), product of:
0.16533206 = queryWeight, product of:
5.705423 = idf(docFreq=399, maxDocs=44218)
0.028978055 = queryNorm
0.62403065 = fieldWeight in 4168, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.705423 = idf(docFreq=399, maxDocs=44218)
0.0546875 = fieldNorm(doc=4168)
0.068513416 = weight(_text_:buch in 4168) [ClassicSimilarity], result of:
0.068513416 = score(doc=4168,freq=4.0), product of:
0.13472971 = queryWeight, product of:
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.028978055 = queryNorm
0.5085249 = fieldWeight in 4168, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.0546875 = fieldNorm(doc=4168)
0.015569357 = weight(_text_:und in 4168) [ClassicSimilarity], result of:
0.015569357 = score(doc=4168,freq=4.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.24241515 = fieldWeight in 4168, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0546875 = fieldNorm(doc=4168)
0.044533674 = product of:
0.08906735 = sum of:
0.08906735 = weight(_text_:bibliothekswesen in 4168) [ClassicSimilarity], result of:
0.08906735 = score(doc=4168,freq=8.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.68951094 = fieldWeight in 4168, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.0546875 = fieldNorm(doc=4168)
0.5 = coord(1/2)
0.06431614 = weight(_text_:informationswissenschaft in 4168) [ClassicSimilarity], result of:
0.06431614 = score(doc=4168,freq=4.0), product of:
0.13053758 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.028978055 = queryNorm
0.4927021 = fieldWeight in 4168, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.0546875 = fieldNorm(doc=4168)
0.08906735 = weight(_text_:bibliothekswesen in 4168) [ClassicSimilarity], result of:
0.08906735 = score(doc=4168,freq=8.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.68951094 = fieldWeight in 4168, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.0546875 = fieldNorm(doc=4168)
0.4 = coord(6/15)
- Classification
- AN 73400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Datenverarbeitung / Einsatz in der Katalogisierung
- RVK
- AN 73400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Datenverarbeitung / Einsatz in der Katalogisierung
-
Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988)
0.00
0.0024833512 = product of:
0.037250265 = sum of:
0.037250265 = sum of:
0.009767379 = weight(_text_:information in 760) [ClassicSimilarity], result of:
0.009767379 = score(doc=760,freq=4.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.1920054 = fieldWeight in 760, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=760)
0.027482886 = weight(_text_:22 in 760) [ClassicSimilarity], result of:
0.027482886 = score(doc=760,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.2708308 = fieldWeight in 760, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=760)
0.06666667 = coord(1/15)
- Abstract
- The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
- Source
- Information technology and libraries. 7(1988), S.359-372
-
Markey, K.: Thus spoke the OPAC user (1983)
0.00
5.2621565E-4 = product of:
0.0078932345 = sum of:
0.0078932345 = product of:
0.015786469 = sum of:
0.015786469 = weight(_text_:information in 785) [ClassicSimilarity], result of:
0.015786469 = score(doc=785,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.3103276 = fieldWeight in 785, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.125 = fieldNorm(doc=785)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Information technology and libraries. 2(1983), S.381-387
-
Bishop, D.F.: ¬The CLR OPAC study : analysis of ARL user responses (1983)
0.00
5.2621565E-4 = product of:
0.0078932345 = sum of:
0.0078932345 = product of:
0.015786469 = sum of:
0.015786469 = weight(_text_:information in 1479) [ClassicSimilarity], result of:
0.015786469 = score(doc=1479,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.3103276 = fieldWeight in 1479, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.125 = fieldNorm(doc=1479)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Information technology and libraries. 2(1983), S.315-321
-
Cochrane, P.A.; Markey, K.: Catalog use studies : since the introduction of online interactive catalogs, impact on design for subject access (1983)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 7676) [ClassicSimilarity], result of:
0.01381316 = score(doc=7676,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 7676, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.109375 = fieldNorm(doc=7676)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Library and information science research. 5(1983), S.337-363
-
Kantor, P.B.: ¬A model for stopping behavior of the users of on-line systems (1987)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 3945) [ClassicSimilarity], result of:
0.01381316 = score(doc=3945,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 3945, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.109375 = fieldNorm(doc=3945)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Journal of the American Society for Information Science. 38(1987), S.211-214
-
Wiberley, S.E.; Daugherty, R.A.: Users' persistence in scanning lists of references (1988)
0.00
4.5571616E-4 = product of:
0.006835742 = sum of:
0.006835742 = product of:
0.013671484 = sum of:
0.013671484 = weight(_text_:information in 7) [ClassicSimilarity], result of:
0.013671484 = score(doc=7,freq=6.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.2687516 = fieldWeight in 7, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=7)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- One of the basic information-seeking activities where library users might experience information overload is scanning lists of references. Because much information seeking is discretionary - users may abandon a search without fear of penalty - lists that are too long may influence users to stop searching
-
Croucher, C.: Problems of subject access : user studies and interface design (1986)
0.00
3.987516E-4 = product of:
0.005981274 = sum of:
0.005981274 = product of:
0.011962548 = sum of:
0.011962548 = weight(_text_:information in 2395) [ClassicSimilarity], result of:
0.011962548 = score(doc=2395,freq=6.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.23515764 = fieldWeight in 2395, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=2395)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- A research project at Middlesex Polytechnic is examning the problems of subject access in an OPAC. A series of user studies have been carried out which examined students' use of existing catalogue facilities, which in turn led to the experimental evaluation of various interface designs for an online catalogue. The experiments were primarily concerned with the effect of the following variables on the speed and accuracy of retrieval of specific items, the use of colour, the speed of presentation of information, the amount of information on a screen, the paging and scrolling of information, the position of a sought item within a list
-
Senzig, D.: Library catalogs for library users (1984)
0.00
3.7209064E-4 = product of:
0.0055813594 = sum of:
0.0055813594 = product of:
0.011162719 = sum of:
0.011162719 = weight(_text_:information in 831) [ClassicSimilarity], result of:
0.011162719 = score(doc=831,freq=4.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.21943474 = fieldWeight in 831, 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=831)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- As librarians evaluate the capabilities of online catalogs they will need to consider what information users expect to find in the catalog and what characteristics of the catalog will help users in their search for this information. The findings of studies concerning how library users actually use card catalogs and online catalogs, and their successes and failures in that use, can be used to determine the capabilities that are needed in anonline catalog to satisfy the bibliographic requests of library users
-
Borgman, C.L.: Why are online catalogs hard to use? : lessons learned from information-retrieval studies (1986)
0.00
3.4178712E-4 = product of:
0.0051268064 = sum of:
0.0051268064 = product of:
0.010253613 = sum of:
0.010253613 = weight(_text_:information in 2281) [ClassicSimilarity], result of:
0.010253613 = score(doc=2281,freq=6.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.20156369 = fieldWeight in 2281, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.046875 = fieldNorm(doc=2281)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- Research in user behavior on online catalogs is in its early stages, but preliminary findings suggest that users encounter many of the same problems identified in behavioral studies of other types of bibliographic retrieval systems. Much can be learned from comparing the results of user behavior studies on these two types of systems. Research on user problems with both the mechanical aspects and the conceptual aspects of system use is reviewed, with the conclusion that more similiratiy exists across types of systems in conceptual than in mechanical problems. Also discussed are potential sources of the problems, due either to individual characteristics or to system variables. A series of research questions is proposed and a number of potential interim solutions ae suggested for alleviating some of the problems encountered by users of information systems
- Source
- Journal of the American Society for Information Science. 37(1986), S.387-400
-
Pulis, N.V.; Ludy, L.E.: Subject searching in an online catalog with authority control (1988)
0.00
3.255793E-4 = product of:
0.0048836893 = sum of:
0.0048836893 = product of:
0.009767379 = sum of:
0.009767379 = weight(_text_:information in 739) [ClassicSimilarity], result of:
0.009767379 = score(doc=739,freq=4.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.1920054 = fieldWeight in 739, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=739)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- Results of previous catalog research indicate that users want improvements in subject searching features, noting display of terms related to their topics as especially desirable. This study reports the findings of an examination of subject searchers' use of such a feature provided through online display of authority information from Library of Congress Subject Headings for terms used in the catalog. It was found that, of the terms entered by users, 78 percent were an exact or close match to catalog terms, and another 14 percent matched "see" references. Although additional information was available for nearly half of the searches performed, it was used in only 28 percent of these cases. It is suggested that improvements in subject searching features are needed to encourage use of available syndetic structures
-
Ostroff, D.; Shneiderman, B.: Selection devices for user of an electronic encyclopedia : an empirical comparison of four possibilities (1988)
0.00
2.6310782E-4 = product of:
0.0039466172 = sum of:
0.0039466172 = product of:
0.0078932345 = sum of:
0.0078932345 = weight(_text_:information in 816) [ClassicSimilarity], result of:
0.0078932345 = score(doc=816,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.1551638 = fieldWeight in 816, 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=816)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Information processing and management. 24(1988), S.665-680
-
Nye, J.B.: User interaction with the authority structure of the online catalog : results of a survey (1988)
0.00
2.6310782E-4 = product of:
0.0039466172 = sum of:
0.0039466172 = product of:
0.0078932345 = sum of:
0.0078932345 = weight(_text_:information in 2286) [ClassicSimilarity], result of:
0.0078932345 = score(doc=2286,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.1551638 = fieldWeight in 2286, 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=2286)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Information technology and libraries. 7(1988), S.313-316
-
Hancock, M.: Subject searching behaviour at the library catalogue and at the shelves : implications for online interactive catalogues (1987)
0.00
2.3255666E-4 = product of:
0.0034883497 = sum of:
0.0034883497 = product of:
0.0069766995 = sum of:
0.0069766995 = weight(_text_:information in 2280) [ClassicSimilarity], result of:
0.0069766995 = score(doc=2280,freq=4.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.13714671 = fieldWeight in 2280, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=2280)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- Searching behaviour in a university library is studied using a holistic approach, encompassing the use of bibliographic tools and shelf browsing. The present study is designed as the first half of a 'before and after' study to permit the evaluation of the impact of a future online catalogue on users' searching behaviour. A combined methodology was devised: searchers were encouraged to talk aloud during their search, and this information, together with some probing and real time expert interpretation, enabled the experimente to record the searching activity on a highly structured observation form. The study reveals the extent of subject searching activity, and suggests that this may have been underestimated in previous studies. The analysis of expressed topics, search formulation strategy and documents retrieved reveals the adaptive nature of the subject searching process, whereby the user adapts to the structure of the available tools. The information retrieval task in a traditional library system is tailored by the system to a single, one dimensional, sequential process. It is suggested that a major obstacle to subject searching effectiveness may lie in the lack of interaction between the different possible approaches in the searching process: the indexing language, the classification, and the titles. It is to be hoped that a future online searching environment will encourage a more truly interactive approach to subject searching.
