-
Stock, W.G.: Themenentdeckung und -verfolgung und ihr Einsatz bei Informationsdiensten für Nachrichten (2007)
0.05
0.054130834 = product of:
0.10826167 = sum of:
0.10826167 = product of:
0.21652333 = sum of:
0.21652333 = weight(_text_:news in 151) [ClassicSimilarity], result of:
0.21652333 = score(doc=151,freq=8.0), product of:
0.26705483 = queryWeight, product of:
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.05094824 = queryNorm
0.8107823 = fieldWeight in 151, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.0546875 = fieldNorm(doc=151)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Themenentdeckung und -verfolgung (topic detection and tracking; TDT) fasst unterschiedliche Dokumente zu einem Thema zusammen und bietet dem Nutzer zunächst das Thema und erst in einem zweiten Schritt die einzelnen Dokumente zur Anzeige an. TDT ist nützlich bei Nachrichten sowie bei Blog-Einträgen. Ein bekanntes Beispiel ist Google News. Der Artikel bespricht den Forschungsstand zu TDT und diskutiert den Einsatz von TDT bei News-Informationsdiensten wie z.B. Factiva oder LexisNexis. Dort ist TDT zweifach wichtig: Erstens ist es (analog zu Google News) bei Profildiensten einsetzbar, zweitens ist es möglich, Dokumente zum gleichen Thema in einen Ordner zu klassieren, um bei einer retrospektiven Recherche die Treffermenge geordnet nach unterschiedlichen Themen anzubieten (und dies ohne Nutzung einer Dokumentationssprache).
- Object
- Google news
-
Stefl-Mabry, J.: ¬A social judgment analysis of information source preference profiles : An exploratory study to empirically represent media selection patterns (2003)
0.03
0.0273402 = product of:
0.0546804 = sum of:
0.0546804 = product of:
0.1093608 = sum of:
0.1093608 = weight(_text_:news in 4577) [ClassicSimilarity], result of:
0.1093608 = score(doc=4577,freq=4.0), product of:
0.26705483 = queryWeight, product of:
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.05094824 = queryNorm
0.40950692 = fieldWeight in 4577, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.0390625 = fieldNorm(doc=4577)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- To better understand how individuals and groups derive satisfaction from information, it is important to identify the information source preferences they apply in information seeking and decision making. Four informal propositions drove the structure and underlying logic of this study, forming a preliminary outline of a theory of information source preference profiles and their influence an information satisfaction. This study employed Social Judgment Analysis (SJA) to identify the information judgment preferences held by professional groups for six selected information sources: word of mouth, expert oral advice, Internet, print news, nonfiction books, and radio/television news. The research was designed as an hypotheses-generating exploratory study employing a purposive sample (n = 90) and generated four empirically supported, testable hypotheses about user satisfaction with information sources. The SJA judgment functions revealed the influences of volume and polarity (i.e., positive versus negative information) an information satisfaction. By advancing the understanding of how information source preferences can be identified empirically and their influence an information satisfaction, this research reflects a first, small step toward understanding "satisficing." Satisficing behaviors result in early termination of information search processes when individuals, facing incomplete information, are sufficiently satisfied to assume risks and execute decisions.
-
Millen, D.R.; Dray, S.M.: Information sharing in an online community of journalists : a critical overview (2000)
0.03
0.027065417 = product of:
0.054130834 = sum of:
0.054130834 = product of:
0.10826167 = sum of:
0.10826167 = weight(_text_:news in 717) [ClassicSimilarity], result of:
0.10826167 = score(doc=717,freq=2.0), product of:
0.26705483 = queryWeight, product of:
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.05094824 = queryNorm
0.40539116 = fieldWeight in 717, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.0546875 = fieldNorm(doc=717)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Informal groups of professional workers are forming online communities to create and share information with each other. This paper offers an analysis of an online community of news reporters. Through participant observation in the group electronic discussion, and analysis of archival copies of the group conversation, the authors explore the ways in which this group requests and offers assistance to each other. The types of information created are examined and the temporal characteristics of the group are explored. The analysis revealed a vibrant online community of professionals who use the online communication medium to compliment professional face to face meetings and other forms of communication such as newsletters and journals.
-
International yearbook of library and information management : 2001/2002 information services in an electronic environment (2001)
0.02
0.02415974 = product of:
0.04831948 = sum of:
0.04831948 = product of:
0.09663896 = sum of:
0.09663896 = weight(_text_:22 in 1381) [ClassicSimilarity], result of:
0.09663896 = score(doc=1381,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.5416616 = fieldWeight in 1381, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=1381)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 25. 3.2003 13:22:23
-
Yoo, E.-Y.; Robbins, L.S.: Understanding middle-aged women's health information seeking on the web : a theoretical approach (2008)
0.02
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = product of:
0.082833394 = sum of:
0.082833394 = weight(_text_:22 in 2973) [ClassicSimilarity], result of:
0.082833394 = score(doc=2973,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.46428138 = fieldWeight in 2973, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=2973)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 9. 2.2008 17:52:22
-
Kuhlthau, C.C.: Seeking meaning : a process approach to library and information services (2003)
0.02
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = product of:
0.082833394 = sum of:
0.082833394 = weight(_text_:22 in 4585) [ClassicSimilarity], result of:
0.082833394 = score(doc=4585,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.46428138 = fieldWeight in 4585, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=4585)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 25.11.2005 18:58:22
-
Pettigrew, K.E.; Durrance, J.C.; Unruh, K.T.: Facilitating community information seeking using the Internet : findings from three public library-community network systems (2002)
0.02
0.01933244 = product of:
0.03866488 = sum of:
0.03866488 = product of:
0.07732976 = sum of:
0.07732976 = weight(_text_:news in 5234) [ClassicSimilarity], result of:
0.07732976 = score(doc=5234,freq=2.0), product of:
0.26705483 = queryWeight, product of:
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.05094824 = queryNorm
0.28956512 = fieldWeight in 5234, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.0390625 = fieldNorm(doc=5234)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Pettigrew, Durrance, and Unruh report on data collected by survey, interview, field observation and focus groups concerning three communities recognized for community information networks in which the local public library played a leading role. The survey was posted for 73 days on the website of each network and yielded 197 responses providing insights on how the public uses CI systems, barriers encountered, and resulting benefits to users and communities. Responding users were diverse demographically, and sought a wide variety of information types. The information types were broader than previous CI studies with a strong emphasis on employment, volunteerism, social services, local history and genealogy, sale, exchange and donation of goods, news, and technical information. Barriers identified were technological, economic, geographic, search skill related, cognitive, and psychological, as well as a large class of information related barriers concerning the quality of the information provided, its accessibility, and security. Users are identified who browse the CI system with particular interest in discovering material of potential value to others. The systems are valued and used by the adult population and seem to strengthen existing communities while stimulating the formation of information communities.
-
Duckett, R.J.; Walker, P.; Donnelly, C.: Know it all, find it fast : an A-Z source guide for the enquiry desk (2008)
0.02
0.015465952 = product of:
0.030931905 = sum of:
0.030931905 = product of:
0.06186381 = sum of:
0.06186381 = weight(_text_:news in 2786) [ClassicSimilarity], result of:
0.06186381 = score(doc=2786,freq=2.0), product of:
0.26705483 = queryWeight, product of:
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.05094824 = queryNorm
0.2316521 = fieldWeight in 2786, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.2416887 = idf(docFreq=635, maxDocs=44218)
0.03125 = fieldNorm(doc=2786)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- 'I wish that I had been able to obtain such a guide when I started dealing with enquiries' - "Managing Information". 'By the time I got to it 3 staff had noticed it on the desk and written a note saying really good and can we have a copy' - "BBOB News". 'This is certainly a comforting and very useful guide for the information worker, particularly inexperienced or unqualified, staffing a general enquiry desk' - "New Library World". There is a queue, the phone is ringing, the photocopier has jammed and your enquirer is waiting for a response. You are stressed and you can feel the panic rising. Where do you go to find the information you need to answer the question promptly and accurately?Answering queries from users is one of the most important services undertaken by library and information staff. Yet it is also one of the most difficult, least understood subjects. There are still very few materials available to help frontline staff - often paraprofessional - develop their reader enquiry skills. This award-winning sourcebook is an essential guide to where to look to find the answers quickly. It is designed as a first point of reference for library and information practitioners, to be depended upon if they are unfamiliar with the subject of an enquiry - or wish to find out more. It is arranged in an easily searchable, fully cross-referenced A-Z list of around 150 of the subject areas most frequently handled at enquiry desks.Each subject entry lists the most important information sources and where to locate them, including printed and electronic sources, relevant websites and useful contacts for referral purposes. The authors use their extensive experience in reference work to offer useful tips, warn of potential pitfalls, and spotlight typical queries and how to tackle them. This new edition has been brought right up-to-date with all sources checked for currency and many new ones added. The searchability is enhanced by a comprehensive index to make those essential sources even easier to find - saving you valuable minutes! Offering quick and easy pointers to a multitude of information sources, this is an invaluable reference deskbook for all library and information staff in need of a speedy answer, in reference libraries, subject departments and other information units.
-
Pennanen, M.; Vakkari, P.: Students' conceptual structure, search process, and outcome while preparing a research proposal : a longitudinal case study (2003)
0.01
0.012202512 = product of:
0.024405023 = sum of:
0.024405023 = product of:
0.048810046 = sum of:
0.048810046 = weight(_text_:22 in 1682) [ClassicSimilarity], result of:
0.048810046 = score(doc=1682,freq=4.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.27358043 = fieldWeight in 1682, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1682)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- This article focuses an analysing students' information needs in terms of conceptual understanding of the topic they propose to study and its consequences for the search process and outcome. The research subjects were 22 undergraduates of psychology attending a seminar for preparing a research proposal for a small empirical study. They were asked to make searches in the PsycINFO database for their task in the beginning and end of the seminar. A pre- and postsearch interview was conducted in both sessions. The students were asked to think aloud in the sessions. This was recorded, as were the transaction logs. The results show that during the preparation of research proposals different features of the students' conceptual structure were connected to the search success. Students' ability to cover their conceptual construct by query terms was the major feature affecting search success during the whole process. In the beginning also the number of concepts and the proportion of subconcepts in the construct contributed indirectly via search tactics to retrieving partly useful references. Students' ability to extract new query terms from retrieved items improved search results.
- Date
- 19. 6.2003 17:22:33
-
Limberg, L.; Alexandersson, M.: Learning and information seeking (2009)
0.01
0.012202512 = product of:
0.024405023 = sum of:
0.024405023 = product of:
0.048810046 = sum of:
0.048810046 = weight(_text_:22 in 3838) [ClassicSimilarity], result of:
0.048810046 = score(doc=3838,freq=4.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.27358043 = fieldWeight in 3838, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=3838)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 27. 8.2011 14:22:22
-
Moyo, L.M.: PSU Gateway Library : electronic library in transition (2004)
0.01
0.01207987 = product of:
0.02415974 = sum of:
0.02415974 = product of:
0.04831948 = sum of:
0.04831948 = weight(_text_:22 in 2854) [ClassicSimilarity], result of:
0.04831948 = score(doc=2854,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.2708308 = fieldWeight in 2854, 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=2854)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Library hi tech. 22(2004) no.2, S.217-226
-
Brabazon, T.: ¬The Google effect : Googling, Blogging, Wikis and the flattening of expertise (2006)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 1658) [ClassicSimilarity], result of:
0.041416697 = score(doc=1658,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 1658, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=1658)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 16. 3.2019 16:22:08
-
Lin, S.-j.; Belkin, N.: Validation of a model of information seeking over multiple search sessions (2005)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 3450) [ClassicSimilarity], result of:
0.041416697 = score(doc=3450,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 3450, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3450)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 10. 4.2005 14:52:22
-
Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
0.041416697 = score(doc=3612,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 3612, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3612)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 2. 7.2005 12:22:50
-
Lamb, R.; King, J.L.; Kling, R.: Informational environments : organizational contexts of online information use (2003)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 5149) [ClassicSimilarity], result of:
0.041416697 = score(doc=5149,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 5149, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5149)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 5. 7.2006 18:43:22
-
Atkinson, R.: ¬A rationale for the redesign of scholarly information exchange (2000)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 181) [ClassicSimilarity], result of:
0.041416697 = score(doc=181,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 181, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=181)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 10. 9.2000 17:38:22
-
Nicholas, D.; Huntington, P.; Jamali, H.R.; Rowlands, I.; Fieldhouse, M.: Student digital information-seeking behaviour in context (2009)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 2680) [ClassicSimilarity], result of:
0.041416697 = score(doc=2680,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 2680, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2680)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 23. 2.2009 17:22:41
-
Kim, J.: Describing and predicting information-seeking behavior on the Web (2009)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 2747) [ClassicSimilarity], result of:
0.041416697 = score(doc=2747,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 2747, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2747)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2009 18:54:15
-
Salvesen, G.: Is the library able to find the answer? (2005)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 3009) [ClassicSimilarity], result of:
0.041416697 = score(doc=3009,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 3009, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3009)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2009 10:54:45
-
Wilson, T.: ¬The information user : past, present and future (2009)
0.01
0.010354174 = product of:
0.020708349 = sum of:
0.020708349 = product of:
0.041416697 = sum of:
0.041416697 = weight(_text_:22 in 3654) [ClassicSimilarity], result of:
0.041416697 = score(doc=3654,freq=2.0), product of:
0.17841205 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05094824 = queryNorm
0.23214069 = fieldWeight in 3654, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3654)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 8. 7.2010 19:09:22
