Search (56 results, page 1 of 3)

  • × theme_ss:"Suchtaktik"
  • × year_i:[1990 TO 2000}
  1. Lempert, Y.: Suchstrategien in Kinder-OPACs : Vorstellung ausgewählter Beispiele und Anforderungen an Dokumentationssprachen (1998) 0.02
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    Imprint
    Köln : FH Köln, Fachbereich Bibliotheks- und Informationswesen
  2. Pejtersen, A.M.: Cognitive engineering in information retrieval domains : merging paradigms? (1995) 0.02
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    Source
    Bibliothek: Forschung und Praxis. 19(1995) H.1, 64-77
  3. Steinhaus, I.: Online recherchieren : Ökonomische Wege zu Informationen (1997) 0.01
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    Abstract
    'Information at your fingertip' ist einer der großen Versprechen der Computerindustrie. Tatsächlich wächst das Angebot online verfügbarer Datenbanken und Informationsnetze mit geradezu atemberaubender Geschwindigkeit. Waren Online-Recherchen noch vorwenigen Jahren eine teure Spielerei für Experten, so kann sich heute jeder in den Netzen auf die Suche begeben. Doch ohne Know-how werden die Ergebnisse kaum befriedigen. Dieses Buch hilft Ihnen, die Recherchekosten und den Arbeitsaufwand so niedrig wie möglich zu halten. Es vermittelt die notwendigen Kenntnisse im Umgang mit Online-Diensten und dem Internet und erläutert die Besonderheiten der unterschiedlichen Datenbanken. Vor allem aber erklärt es anhand praxisnaher Beispiele, wie man Suchanfragen konzipiert und erfolgversprechende Suchstrategien entwickelt
  4. Manual of online search strategies (1992) 0.01
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    Abstract
    Nach fachlichen Gesichtspunkten gebildete Kapitel mit Darstellung der jeweils relevanten Datenbanken, Hosts und Suchbeispielen. Homogene Darstellung als nützliche Einführung
    Footnote
    Rez. in: Library Association record 94(1992) no.10, S.667 (A. Pinnock); Library review 42(1993) no.5, S.71-72 (P. Millar)
  5. Hsieh-Yee, I.: Search tactics of Web users in searching for texts, graphics, known items and subjects : a search simulation study (1998) 0.01
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    Abstract
    Reports on a study of the search tactics used in searching the WWW and in dealing with difficulties such as too many postings and no relevant postings. Describes how the study was carried out, the analytical techniques used in it, and the results. Notes that with regard to tactics used to address search difficulties, no differences were found between searchers for texts and those for graphic information, and between those for known items and subject searches. Comments on the similarities and differences between the tactics used and and those used in online searching, including online catalogue searching
    Date
    25.12.1998 19:22:31
    Footnote
    Part of an issue devoted to electronic resources and their use in libraries, from the viewpoint of reference services, with an emphasis on the Internet and Geographic Information Systems
  6. Limberg, L.: Three conceptions of information seeking and use (1999) 0.01
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    Abstract
    This study grew out of a need for better research based understanding of information seeking and use in a specific context. Several researchers in library and information studies (LIS) pointed out the predominance of research on information needs and information seeking and expressed a need for the study of information use (i.a. Kuhlthau 1993; Vakkari 1997; Wilson 1981). The role of context for information seeking behaviour has been stressed (i.a. Dervin 1997; Wilson 1981, 1994). The complex process of information seeking and use in learning contexts needs further exploration, according to i.a. Kuhlthau (1993). My research project investigated how students used information and what they learnt from the information they retrieved and used for an assignment. The aim of the project was to study information seeking through an explorative investigation of the interaction between information seeking and use and learning outcomes.
    Date
    22. 3.2002 9:53:10
    Source
    Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, Sheffield, UK, 1998. Ed. by D.K. Wilson u. D.K. Allen
  7. Byström, K.: Information seekers in context : an analysis of the 'doer' in INSU studies (1999) 0.01
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    Abstract
    In information needs, seeking and use (INSU) research, individuals have most commonly been perceived as users (e.g., Kuhlthau, 1991; Dervin & Nilan, 1986; Dervin, 1989; Belkin, 1980). The concept user originates from the user of libraries and other information services and information systems. Over the years the scope of the concept has become wider and it is nowadays often understood in the sense of seekers of information (e.g., Wilson, 1981; Marchionini, 1995) and users of information (e.g., Streatfield, 1983). Nevertheless, the concept has remained ambiguous by being on the one hand universal and on the other hand extremely specific. The purpose of this paper is to map and evaluate views on people whose information behaviour has been in one way or another the core of our research area. The goal is to shed some light on various relationships between the different aspects of doers in INSU studies. The paper is inspired by Dervin's (1997) analysis of context where she identified among other themes the nature of subject by contrasting a `transcendental individual' with a `decentered subject', and Talja's (1997) presentation about constituting `information' and `user' from the discourse analytic viewpoint as opposed to the cognitive viewpoint. Instead of the metatheoretical approach applied by Dervin and Talja, a more concrete approach is valid in the present analysis where no direct arguments for or against the underlying metatheories are itemised. The focus is on doers in INSU studies leaving other, even closely-related concepts (i.e., information, information seeking, knowledge etc.), outside the scope of the paper.
    Date
    22. 3.2002 9:55:52
    Source
    Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, Sheffield, UK, 1998. Ed. by D.K. Wilson u. D.K. Allen
  8. Toms, E.G.: What motivates the browser? (1999) 0.01
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    Abstract
    Browsing is considered to be unstructured and human-driven, although not a cognitively intensive process. It is conducted using systems that facilitate considerable user-system interactivity. Cued by the content, people immerse themselves in a topic of interest and meander from topic to topic while concurrently recognising interesting and informative information en route. They seem to seek and gather information in a purposeless, illogical and indiscriminate manner. Typical examples of these ostensibly random acts are scanning a non-fiction book, examining the morning newspaper, perusing the contents of a business report and scavenging the World Wide Web. Often the result is the acquisition of new information, the rejection or confirmation of an idea, or the genesis of new, perhaps not-wholly-formed thoughts about a topic. Noteworthy about this approach is that people explore information without having consciously structured queries or explicit goals. This form of passive information interaction behaviour is defined as acquiring and gathering information while scanning an information space without a specific goal in mind (Waterworth & Chignell, 1991; Toms, 1997), and for the purposes of this study, is called browsing. Traditionally, browsing is thought of in two ways: as a physical process - the action taken when one scans a list, a document, or a set of linked information nodes (e.g., Fox & Palay, 1979; Thompson & Croft, 1989; Ellis, 1989), and as a conceptual process, information seeking when the goal is ill-defined (e.g., Cove & Walsh, 1987). Browsing is also combined with searching in an integrated information-seeking process for retrieving information (e.g., Ellis, 1989; Belkin, Marchetti & Cool, 1993; Marchionini, 1995; Chang, 1995). Each of these cases focuses primarily on seeking information when the objective ranges from fuzzy to explicit.
    Date
    22. 3.2002 9:44:47
    Source
    Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, 13-15 August 1998, Sheffield, UK. Ed. by D.K. Wilson u. D.K. Allen
  9. Ennis, M.; Sutcliffe, A.G.; Watkinson, S.J.: Towards a predictive model of information seeking : empirical studies of end-user-searching (1999) 0.01
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    Abstract
    Previous empirical studies of searcher behaviour have drawn attention to a wide variety of factors that affect performance; for instance, the display of retrieved results can alter search strategies (Allen 1991, 1994), the information need type influences search behaviour, (Elkerton et al 1984, Marchionini 1995); while the task complexity, reflected in the information need can affect user's search behaviour (Large et al 1994). Furthermore, information source selection (Bassilli 1977), and the user's model of the system and domain impact on the search process (Michel 1994); while motivation (Solomon 1993, Jacobsen et al 1992) and the importance of the information need (Wendt 1969) also influence search duration and the effort a user will employ. Rouse and Rouse (1984) in a review of empirical studies, summarise a wide variety of variables that can effect searching behaviour, including payoff, costs of searching, resource available, amount of information sought, characteristics of the data and conflicts between documents. It appears that user behaviour is inconsistent in the search strategies adopted even for the same search need and system (Davidson 1977, Iivonen 1995). Theories of searcher behaviour have been proposed that provide explanations of aspects of end-user behaviour, such as the evolution of the user's information need and the problems of articulating a query, [Bates (1979, 1989), Markey and Atherton 1978], effective search strategies in browsing and goal directed searches [Marchionini 1995, Belkin (1987, 1993)], the linguistic problem of matching search terms with indexing terms or content of target documents through an expert intermediary (Ingwersen 1982) or cognitive aspects of IR (Kulthau 1984, Ingwersen 1996).
    Date
    22. 3.2002 9:54:13
    Source
    Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, Sheffield, UK, 1998. Ed. by D.K. Wilson u. D.K. Allen
  10. Shuman, B.A.: Cases in online search strategy (1993) 0.00
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    Footnote
    Rez. in: Journal of academic librarianship 20(1994) no.1, S.53; Education in information 12(1994) no.2, S.285-287 (A. Large)
  11. Chamis, A.Y.: Vocabulary control and search strategies in online searching (1991) 0.00
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    Abstract
    Based on the author's 1984 dissertation, this technical and detailed volume looks at problems related to control of terms used in searching among a variety of databases
    Footnote
    Rez. in: Computers in libraries 12(1992) no.2, S.46-47; Library quarterly 62(1992) no.3, S.347-349 (R. Fidel)
    Series
    New directions in information management series; 27
  12. Savolainen, R.: Seeking and using information from the Internet : the context of non-work use (1999) 0.00
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    Abstract
    As a result of the Internet, electronic networks occupy a more visible place in everyday life. Until the early nineties, the use of electronic networks was limited to a rather small number of people working in enterprises and universities. Since then, the networks have become more accessible for other citizens. Currently at least 60-70 million people all over the world are estimated to use the Internet (Gaines et al., 1997: 990). In 2000, the number of WWW users alone is expected to reach 160 million (Aldridge & Darwood 1997: 283). The rapid growth of network use has given rise to a lot of research needs. For example, what are the main purposes of network use and to what extent may the Internet replace other channels in information seeking? Thus far, the utilization of networks has been mainly surveyed in the USA but, in recent years issues of use have also attracted increasing attention in Western Europe. This study is a continuation of a research project focusing on the ways in which citizens seek information in the context of everyday life (see Savolainen 1995). An attempt is made to analyze how citizens utilize the electronic networks, primarily for non-work purposes. This paper communicates part of an empirical study; a detailed report is available in Finnish (Savolainen 1998b).
    Source
    Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, 13-15 August 1998, Sheffield, UK. Ed. by D.K. Wilson u. D.K. Allen
  13. McCrank, L.J.: Reference expertise : paradigms, strategies, and systems (1993) 0.00
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    Abstract
    Past trends in reference instruction, query analysis and proloferation of reference tools classed by primary functions into a general typology anticipated the use of paradigm logic, templates, search strategies, and systematic searching in applied Artificial Intelligence research and design of expert system, especially referral and decision-support systems. The approach, methodologies, and technique employed in basic reference and subject-area reference instruction in four graduate library schools, developed first at the University of Maryland after 1976, are reviewed. The advantages and limitations of the latter are discussed to suggest the interplay of personal service, manual tools, and computerized systems for holistic reference programs. Librarians' transition to the automated tools using AI methods might be improved by introducing paradigms, typologies, strategies, and a systems approach in reference instruction for professionals and more generally in bibliographic instruction
  14. Caywood, C.: ¬A shift in search strategy (1994) 0.00
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    Abstract
    Looks at bibliographic instruction in the age of electronic searching and the the need to provide instruction to insure that remote access to the library is successful. Outlines an approach to teaching library skills by Loomis and Fink in 1993, that is equally relevant to school and public libraries, in which they argue that a successful search can no longer be equated with the quantity of material retrieved but with its relevance. This is dependent upon standardisation of access points, search language and online instructions
  15. Trullier, O.; Meyer, J.-A.: Bionimetic navigation models and strategies in animals (1997) 0.00
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    Abstract
    Describes a hierarchy of 4 navigation strategies - guidance, place recognition-triggered response, topological navigation and metric navigation. Such a hierarchy can be used to categorise models that are inspired by current knowledge about the way animals navigate in their environments. Describes the main mechanisms implemented in each model, together with the basic adaptive capacities that the corresponding strategy effords. Discusses the moethodological options that implementation of bionimetic models in real robots would entail
  16. Cleary, J.S.: Asking the right question : formulating effective search strategies for electronic databases (1997) 0.00
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    Abstract
    Describes a simple technique that enables students to practice skills in formulating search strategies for electronic databases. Currently used in some library instruction classes at Slippery Roch University, this technique employs cooperative learning and critical thinking skills, requires relatively little time, and is effective with both undergraduates and graduates. In particular this technique claerly demonstrates that information retrieval is greatly affected by the manner in which the question is asked
  17. Wilson, T.D.: Models in information behaviour research (1999) 0.00
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    Abstract
    This paper presents an outline of models of information seeking and other aspects of information behaviour, showing the relationship between communication and information behaviour in general with information seeking and information searching in information retrieval systems. It is suggested that these models address issues at various levels of information behaviour and that they can be related by envisaging a 'nesting' of models. It is also suggested that, within both information seeking research and information searching research, alternative models address similar issues in related ways and that the models are complementary rather than conflicting. Finally, an alternative, problem-solving model is presented, which, it is suggested, provides a basis for relating the models in appropriate research strategies.
  18. Nicholas, D.; Williams, P.: ¬The changing information environment : the impact of the Internet on information seeking behaviour in the media (1999) 0.00
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    Abstract
    Journalists were chosen for study because it was felt that they would be, as information seekers and packagers par excellence, in the advanced guard of Internet users and setting the pace. As it turned out this was not to be case. Despite what appear to be the considerable and direct benefits for them, after having interviewed approximately 150 journalists and observed the action in a variety of news rooms, it appears that less than one in five national journalist use the Internet and the proportion is much less than that for regional journalists. If this poor Internet take up in the workplace was unexpected, another surprise is the characteristics of those who have actually taken the Internet route. Far from being the stereotypical young and male, most are well practised journalist into their thirties/forties, which, of course, runs counter to all that we have been led to believe. Surprisingly, the study showed as much, if not more, interest in using the Internet from the supposedly `busy' senior managers and editors than in the rank and file.
    Source
    Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, 13-15 August 1998, Sheffield, UK. Ed. by D.K. Wilson u. D.K. Allen
  19. Pejtersen, A.M.: ¬A new approach to design of document retrieval and indexing systems for OPAC users (1993) 0.00
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    Abstract
    This paper describes a new OPAC system called The Book House and discusses its relevance as a solution to current OPAC developments. The Book House is an interactive, multimedia, online public access catalogue system designed to support casual and/or novice end-users in information retrieval. It runs on a Macintosh and is available on CD-ROM and disks in English and Danish (it can be purchased from Risø for $100). It comprises an interface and module for classifying and indexing fact and fiction books in the database called Book House Write. It uses icons, text and animation in the display interface in order to enhance the utility of the system for the general public. Both words and pictures can be used for searching, which makes the system suitable for all age groups. It plays on users' previous experiencees with computer games to support learning by doing something in an enjoyable way. A prerequisite for the design of The Book House was a new approach to cognitive analysis of retrieval in libraries. Based on the success of this approach, it is claimed that OPAC systems will only be really useful and widespread (1) when their domain and task characteristics allow supplementary information to be added to existing descriptions of book content in online card catalogues in order to match end-users' intentions and needs, and (2) when the user interface and routes to the databases are configured as an integrated and uniform set of displays which match the search strategies of users, as well as their mental capabilities and limitations
  20. Boynton, J.: Identifying systematic reviews in MEDLINE : developing an objective approach to search strategy design (1998) 0.00
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    Abstract
    Systematic reviews are becoming increasingly important for health care professionals seeking to provide evidence based health care. In the past, systematic reviews have been difficult to identify among the mass of literature labelled 'reviews'. Reports results of a study to design search strategies based on a more objective approach to strategy construction. MEDLINE was chosen as the database and word frequencies in the titles, abstracts and subject keywords of a collection of systematic reviews of the effective health care interventions were analyzed to derive a highly sensitive search strategy. 'Sensitivity' was used in preference to the usual term 'recall' as one of the measures (in addition to the usual 'precision'). The proposed strategy was found to offer 98% sensitivity in retrieving systematic reviews, while retaining a low but acceptable level of precision (20%). Reports results using other strategies with other levels of sensitivity and precision. Concludes that it is possible to use frequency analysis to generate highly sensitive strategies when retrieving systematic reviews

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