Search (29 results, page 1 of 2)

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Abstract

In the Web, making judgments of information quality and authority is a difficult task for most users because overall, there is no quality control mechanism. This study examines the problem of the judgment of information quality and cognitive authority by observing people's searching behavior in the Web. Its purpose is to understand the various factors that influence people's judgment of quality and authority in the Web, and the effects of those judgments on selection behaviors. Fifteen scholars from diverse disciplines participated, and data were collected combining verbal protocols during the searches, search logs, and postsearch interviews. It was found that the subjects made two distinct kinds of judgment: predictive judgment, and evaluative judgment. The factors influencing each judgment of quality and authority were identified in terms of characteristics of information objects, characteristics of sources, knowledge, situation, ranking in search output, and general assumption. Implications for Web design that will effectively support people's judgments of quality and authority are also discussed

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Abstract

Although much of the hubris and hyperbole surrounding the 1990's Internet has softened to a reasonable level, the inexorable momentum of information growth continues unabated. This wealth of information provides resources for adapting to the problems posed by our increasingly complex world, but the simple availability of more information does not guarantee its successful transformation into valuable knowledge that shapes, guides, and improves our activity. When faced with something like the analysis of sense-making behavior on the web, traditional research models tell us a lot about learning and performance with browser operations, but very little about how people will actively navigate and search through information structures, what information they will choose to consume, and what conceptual models they will induce about the landscape of cyberspace. Thus, it is fortunate that a new field of research, Adaptive Information Interaction (AII), is becoming possible. AII centers on the problems of understanding and improving human-information interaction. It is about how people will best shape themselves to their information environments, and how information environments can best be shaped to people. Its roots lie in human-computer interaction (HCI), information retrieval, and the behavioral and social sciences. This book is about Information Foraging Theory (IFT), a new theory in Adaptive Information Interaction that is one example of a recent flourish of theories in adaptationist psychology that draw upon evolutionary-ecological theory in biology. IFT assumes that people (indeed, all organisms) are ecologically rational, and that human information-seeking mechanisms and strategies adapt the structure of the information environments in which they operate. Its main aim is to create technology that is better shaped to users. Information Foraging Theory will be of interest to student and professional researchers in HCI and cognitive psychology.

Content

Inhalt: 1. Information Foraging Theory: Framework and Method 2. Elementary Foraging Models 3. The Ecology of Information Foraging on the World Wide Web 4. Rational Analyses of Information Scent and Web Foraging 5. A Cognitive Model of Information Foraging on the Web 6. A Rational Analysis and Computational Cognitive Model of the Scatter/Gather Document Cluster Browser 7. Stochastic Models of Information Foraging by Information Scent 8. Social Information Foraging 9. Design Heuristics, Engineering Models, and Applications 10. Future Directions: Upward, Downward, Inward, and Outward

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Abstract

This book tells the story of Emanuel Goldberg, a chemist, inventor, and industrialist who contributed to almost every aspect of imaging technology in the first half of the 20th century. An incredible story emerges as Buckland unearths forgotten documents and rogue citations to show that Goldberg created the first desktop search engine, developed microdot technology, and designed the famous Contax 35 mm camera. It is a fascinating tribute to a great mind and a crucial period in the history of information science and technology.

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Abstract

Consider a sentence such as "the current price of tea in China is 35 cents per pound." In a library with millions of books we might find many statements of the above form that we could capture today with relatively simple rules: rather than pursuing every variation of a statement, programs can wait, like predators at a water hole, for their informational prey to reappear in a standard linguistic pattern. We can make inferences from sentences such as "NAME1 born at NAME2 in DATE" that NAME more likely than not represents a person and NAME a place and then convert the statement into a proposition about a person born at a given place and time. The changing price of tea in China, pedestrian birth and death dates, or other basic statements may not be truth and beauty in the Phaedrus, but a digital library that could plot the prices of various commodities in different markets over time, plot the various lifetimes of individuals, or extract and classify many events would be very useful. Services such as the Syllabus Finder1 and H-Bot2 (which Dan Cohen describes elsewhere in this issue of D-Lib) represent examples of information extraction already in use. H-Bot, in particular, builds on our evolving ability to extract information from very large corpora such as the billions of web pages available through the Google API. Aside from identifying higher order statements, however, users also want to search and browse named entities: they want to read about "C. P. E. Bach" rather than his father "Johann Sebastian" or about "Cambridge, Maryland", without hearing about "Cambridge, Massachusetts", Cambridge in the UK or any of the other Cambridges scattered around the world. Named entity identification is a well-established area with an ongoing literature. The Natural Language Processing Research Group at the University of Sheffield has developed its open source Generalized Architecture for Text Engineering (GATE) for years, while IBM's Unstructured Information Analysis and Search (UIMA) is "available as open source software to provide a common foundation for industry and academia." Powerful tools are thus freely available and more demanding users can draw upon published literature to develop their own systems. Major search engines such as Google and Yahoo also integrate increasingly sophisticated tools to categorize and identify places. The software resources are rich and expanding. The reference works on which these systems depend, however, are ill-suited for historical analysis. First, simple gazetteers and similar authority lists quickly grow too big for useful information extraction. They provide us with potential entities against which to match textual references, but existing electronic reference works assume that human readers can use their knowledge of geography and of the immediate context to pick the right Boston from the Bostons in the Getty Thesaurus of Geographic Names (TGN), but, with the crucial exception of geographic location, the TGN records do not provide any machine readable clues: we cannot tell which Bostons are large or small. If we are analyzing a document published in 1818, we cannot filter out those places that did not yet exist or that had different names: "Jefferson Davis" is not the name of a parish in Louisiana (tgn,2000880) or a county in Mississippi (tgn,2001118) until after the Civil War.

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Abstract

The Turn analyzes the research of information seeking and retrieval (IS&R) and proposes a new direction of integrating research in these two areas: the fields should turn off their separate and narrow paths and construct a new avenue of research. An essential direction for this avenue is context as given in the subtitle Integration of Information Seeking and Retrieval in Context. Other essential themes in the book include: IS&R research models, frameworks and theories; search and works tasks and situations in context; interaction between humans and machines; information acquisition, relevance and information use; research design and methodology based on a structured set of explicit variables - all set into the holistic cognitive approach. The present monograph invites the reader into a construction project - there is much research to do for a contextual understanding of IS&R. The Turn represents a wide-ranging perspective of IS&R by providing a novel unique research framework, covering both individual and social aspects of information behavior, including the generation, searching, retrieval and use of information. Regarding traditional laboratory information retrieval research, the monograph proposes the extension of research toward actors, search and work tasks, IR interaction and utility of information. Regarding traditional information seeking research, it proposes the extension toward information access technology and work task contexts. The Turn is the first synthesis of research in the broad area of IS&R ranging from systems oriented laboratory IR research to social science oriented information seeking studies. TOC:Introduction.- The Cognitive Framework for Information.- The Development of Information Seeking Research.- Systems-Oriented Information Retrieval.- Cognitive and User-Oriented Information Retrieval.- The Integrated IS&R Research Framework.- Implications of the Cognitive Framework for IS&R.- Towards a Research Program.- Conclusion.- Definitions.- References.- Index.

Footnote

- Kapitel fünf enthält einen entsprechenden Überblick über die kognitive und benutzerorientierte IR-Tradition. Es zeigt, welche anderen (als nur die labororientierten) IR-Studien durchgeführt werden können, wobei sich die Betrachtung von frühen Modellen (z.B. Taylor) über Belkins ASK-Konzept bis zu Ingwersens Modell der Polyrepräsentation, und von Bates Berrypicking-Ansatz bis zu Vakkaris "taskbased" IR-Modell erstreckt. Auch Web-IR, OKAPI und Diskussionen zum Relevanzbegriff werden hier thematisiert. - Im folgenden Kapitel schlagen die Autoren ein integriertes IS&R Forschungsmodell vor, bei dem die vielfältigen Beziehungen zwischen Informationssuchenden, Systementwicklern, Oberflächen und anderen beteiligten Aspekten berücksichtigt werden. Ihr Ansatz vereint die traditionelle Laborforschung mit verschiedenen benutzerorientierten Traditionen aus IS&R, insbesondere mit den empirischen Ansätzen zu IS und zum interaktiven IR, in einem holistischen kognitiven Modell. - Kapitel sieben untersucht die Implikationen dieses Modells für IS&R, wobei besonders ins Auge fällt, wie komplex die Anfragen von Informationssuchenden im Vergleich mit der relativen Einfachheit der Algorithmen zum Auffinden relevanter Dokumente sind. Die Abbildung der vielfältig variierenden kognitiven Zustände der Anfragesteller im Rahmen der der Systementwicklung ist sicherlich keine triviale Aufgabe. Wie dabei das Problem der Einbeziehung des zentralen Aspektes der Bedeutung gelöst werden kann, sei dahingestellt. - Im achten Kapitel wird der Versuch unternommen, die zuvor diskutierten Punkte in ein IS&R-Forschungsprogramm (Prozesse - Verhalten - Systemfunktionalität - Performanz) umzusetzen, wobei auch einige kritische Anmerkungen zur bisherigen Forschungspraxis getroffen werden. - Das abschliessende neunte Kapitel fasst das Buch kurz zusammen und kann somit auch als Einstieg in dieThematik gelesen werden. Darauffolgen noch ein sehr nützliches Glossar zu allen wichtigen Begriffen, die in dem Buch Verwendung finden, eine Bibliographie und ein Sachregister. Ingwersen und Järvelin haben hier ein sehr anspruchsvolles und dennoch lesbares Buch vorgelegt. Die gebotenen Übersichtskapitel und Diskussionen sind zwar keine Einführung in die Informationswissenschaft, decken aber einen grossen Teil der heute in dieser Disziplin aktuellen und durch laufende Forschungsaktivitäten und Publikationen berührten Teilbereiche ab. Man könnte es auch - vielleicht ein wenig überspitzt - so formulieren: Was hier thematisiert wird, ist eigentlich die moderne Informationswissenschaft. Der Versuch, die beiden Forschungstraditionen zu vereinen, wird diesem Werk sicherlich einen Platz in der Geschichte der Disziplin sichern. Nicht ganz glücklich erscheint der Titel des Buches. "The Turn" soll eine Wende bedeuten, nämlich jene hin zu einer integrierten Sicht von IS und IR. Das geht vermutlich aus dem Untertitel besser hervor, doch dieser erschien den Autoren wohl zu trocken. Schade, denn "The Turn" gibt es z.B. in unserem Verbundkatalog bereits, allerdings mit dem Zusatz "from the Cold War to a new era; the United States and the Soviet Union 1983-1990". Der Verlag, der abgesehen davon ein gediegenes (wenn auch nicht gerade wohlfeiles) Produkt vorgelegt hat, hätte derlei unscharfe Duplizierend besser verhindert. Ungeachtet dessen empfehle ich dieses wichtige Buch ohne Vorbehalt zur Anschaffung; es sollte in keiner grösseren Bibliothek fehlen."

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Abstract

New challenges arise for researchers and practitioners as we move away from concentration on the technology of searching, and turn our attention to using information for problem solving and creativity in the workplace and daily living. This paper explores links between information behavior, information literacy and the impact of information, drawing on the author's research into the user's perspective of information seeking and use and the model of the Information Search Process (ISP). The ISP model describes thoughts, actions and feelings in six stages of interacting with information to construct meaning. Central to the ISP model is the finding that information commonly increases uncertainty in the early stages of the search process. Increased uncertainty creates a zone of intervention for intermediaries and system designers that support users in their quest for seeking meaning from information. Innovative approaches to interaction between people and information are needed to bridge the divide between information behavior, information literacy and impact of information in order to address issues of the twenty-first century.

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Date

13. 7.2008 19:22:28

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Abstract

With the rapidly changing Web-enabled world, the already existing dichotomy between knowing of and knowing about, or information naïveté, widens daily. This article explores the ethical dilemmas that can result from the lack of information literacy. The article also discusses conditions and consequences of information naïveté, media bias, possessive memory, and limited contexts and abilities. To help avoid information failure, the author recommends producers, contributors, disseminators, and aggregators of information be less information naïve.

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Date

22. 2.2007 18:56:23
22. 2.2007 19:22:13

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Footnote

Rez. in: Information Research, 9(3), review no. R129 (T.D. Wilson): "The first edition of this book was published ten years ago and rapidly become something of a classic in the field of information seeking behaviour. It is good to see the second edition which incorporates not only the work the author has done since 1993, but also related work by other researchers. Kuhlthau is one of the most cited authors in the field and her model of the information search process, involving stages in the search and associated feelings, has been used by others in a variety of contexts. However, what makes this book different (as was the case with the first edition) is the author's dedication to the field of practice and the book's sub-title demonstrates her commitment to the transfer of research. In Kuhlthau's case this is the practice of the school library media specialist, but her research has covered students of various ages as well as a wide range of occupational groups. Because the information search model is so well known, I shall concentrate in this review on the relationship between the research findings and practice. It is necessary, however, to begin with the search process model, because this is central. Briefly, the model proposes that the searcher goes through the stages of initiation, selection, exploration, formulation, collection and presentation, and, at each stage, experiences various feelings ranging from optimism and satisfaction to confusion and disappointment. Personally, I occasionally suffer despair, but perhaps that is too extreme for most!
It is important to understand the origins of Kuhlthau's ideas in the work of the educational theorists, Dewey, Kelly and Bruner. Putting the matter in a rather simplistic manner, Dewey identified stages of cognition, Kelly attached the idea of feelings being associated with cognitive stages, and Bruner added the notion of actions associated with both. We can see this framework underlying Kuhlthau's research in her description of the actions undertaken at different stages in the search process and the associated feelings. Central to the transfer of these ideas to practice is the notion of the 'Zone of Intervention' or the point at which an information seeker can proceed more effectively with assistance than without. Kuhlthau identifies five intervention zones, the first of which involves intervention by the information seeker him/herself. The remaining four involve interventions of different kinds, which the author distinguishes according to the level of mediation required: zone 2 involves the librarian as 'locater', i.e., providing the quick reference response; zone 3, as 'identifier', i.e., discovering potentially useful information resources, but taking no further interest in the user; zone 4 as 'advisor', i.e., not only identifying possibly helpful resources, but guiding the user through them, and zone 5 as 'counsellor', which might be seen as a more intensive version of the advisor, guiding not simply on the sources, but also on the overall process, through a continuing interaction with the user. Clearly, these processes can be used in workshops, conference presentations and the classroom to sensitise the practioner and the student to the range of helping strategies that ought to be made available to the information seeker. However, the author goes further, identifying a further set of strategies for intervening in the search process, which she describes as 'collaborating', 'continuing', 'choosing', 'charting', 'conversing' and 'composing'. 'Collaboration' clearly involves the participation of others - fellow students, work peers, fellow researchers, or whatever, in the search process; 'continuing' intervention is associated with information seeking that involves a succession of actions - the intermediary 'stays with' the searcher throughout the process, available as needed to support him/her; 'choosing', that is, enabling the information seeker to identify the available choices in any given situation; 'charting' involves presenting a graphic illustration of the overall process and locating the information seeker in that chart; 'conversing' is the encouragement of discussion about the problem(s), and 'composing' involves the librarian as counsellor in encouraging the information seeker to document his/her experience, perhaps by keeping a diary of the process.

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Abstract

With the proliferation of new information channels such as the Web, e-mail and wireless, it is becoming increasingly important to understand the impact of these technologies within information-seeking and retrieval contexts. This issue of Aslib Proceedings presents research that begins to address the notion of "information disparity". It aims to weave a common thread between the challenges of reconciling disparate information needs in an environment complicated by fragmented or disparate data sources. This article lists several emerging trends that should begin to challenge traditional notions of our research field.

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Abstract

How can one verify the accuracy of recorded information (e.g., information found in books, newspapers, and on Web sites)? In this paper, I argue that work in the epistemology of testimony (especially that of philosophers David Hume and Alvin Goldman) can help with this important practical problem in library and information science. This work suggests that there are four important areas to consider when verifying the accuracy of information: (i) authority, (ii) independent corroboration, (iii) plausibility and support, and (iv) presentation. I show how philosophical research in these areas can improve how information professionals go about teaching people how to evaluate information. Finally, I discuss several further techniques that information professionals can and should use to make it easier for people to verify the accuracy of information.

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Abstract

This study expands the perspective of knowledge sharing by categorizing the different types of knowledge that individuals shared with one another and examining the patterns of motivators and barriers of knowledge sharing across three online environments pertaining to the following professional practices - advanced nursing practice, Web development, and literacy education. The patterns indicate the different possible combinations of motivators or barriers that may exist in individuals. Data were gathered through online observations and semistructured interviews with 54 participants. The cross-case analysis shows that the most common type of knowledge shared across all three environments was practical knowledge. Overall, seven motivators were found. Analysis also suggests that the most common combination of motivators for knowledge sharing was collectivism and reciprocity. A total of eight barriers were identified. The most common combination of barriers varied in each online environment. Discussions as to how the types of professional practices may contribute to the different results are provided, along with implications and future possible research directions.

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Date

31. 7.2001 20:22:57

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Date

22. 3.2009 18:15:22

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Abstract

Purpose - Information, owing to its nature, has numerous capabilities. Through utilizing these capabilities, information systems can add to the value of information. The purpose of this paper is to explain where and how added value emerges from the work processes in library and information professions. Design/methodology/approach - The paper begins with a review of the related literature and then takes a conceptual approach to discuss different values of information and IR systems; elaborates on how each of the processes such as assessment of needs, selection, description/organization, storage/processing, search/retrieval, and dissemination generate capabilities that lead to added value. Findings - The paper identifies that added value is generated through processes such as reproduction, exchange, transfer, refinement, analysis, interpretation, synthesis, and regeneration of information. Many such processes turn information into knowledge. Research limitations/implications - This paper is based on the author's reflections on the matter of added value generated by library and information practice. Further empirical studies are needed to substantiate the extent to which such values are generated through information systems and services in the real world. Practical implications - Librarians and information specialists can find through their working practice how to design systems and services which can generate added value for information. Originality/value - In the present evolving conditions, library and information professionals are able to add to the value of information by sharing their knowledge with the expertise of computer scientists and finding a variety of ways and up-to-date methods of optimizing existing systems, as well as designing new systems. These are the two strategies along which the profession should guide its educational, research and practical endeavors.

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Abstract

Purpose - With the proliferation of electronic information via the web a further distension of the unique characteristics of information has been witnessed. With seismic developments occurring in such a short period of time, it seems prudent to consider the very nature of information and to assess whether this accelerated growth has implications for the work of the informatics community and the information society. Design/methodology/approach - The paper begins by revisiting and refreshing the unique characteristics of information via a reappraisal of the relevant literature. These characteristics are then contextualised within the new economy and traditional economic theory. Once these unique characteristics have been examined, the author discusses how the nature of information in the twenty-first century presents the informatics community with new and difficult challenges. Findings - The challenges posed by the unique nature of information demand a definite response on the part of the informatics community, including the creation of innovative new models to accommodate information's inherent characteristics. Additionally, as the nature of information evolves yet further and ICT innovations accelerate, ever more adaptable skills will be required by the end user in order that value be derived from information. Practical implications - Outcomes and conclusions addressed in the paper may inform the informatics community generally, but will specifically inform the practice of information managers and librarians, and offer ways of assisting them in arriving at holistic decisions with respect to service provision. Originality/value - The paper is a contribution to the debate on the precise nature of information and offers new perspectives on how the informatics community should view information in the twenty-first century.

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Abstract

Purpose - To provide some theoretical considerations concerning information literacy so as to contribute to a theoretically informed point of departure for understanding information literacy and to argue that to be an information literate person is to have knowledge about information sources and that searching and using them is determined by an insight into how knowledge is socially organized in society. Design/methodology/approach - Using concepts from composition studies that deal with the question of what a writer needs to know in order to produce a text, the paper outlines some ideas and key concepts in order to show how these ideas and concepts are useful to our understanding of information literacy. To demonstrate how information-literacy is to have knowledge about information sources and that searching and using them is determined by an insight into how knowledge is socially organized in society, the paper takes a point of departure in Habermas' theory of the public sphere. Findings - Concludes that information seeking competence is a sociopolitical skill, like reading and writing skills, connected to human activity. Searching for documents in information systems is a complex and sociopolitical activity. As an expression of human activity we might say that searching for documents and reading and writing constitutes each other. The genre knowledge necessary in reading and writing does also apply when seeking information in systems of organized knowledge as the forms of information determine what can be expected and found in these systems. Information literacy covers, then, the ability to read society and its textually and genre-mediated structures. Information literacy represents an understanding of society and its textual mediation. Research limitations/implications - Locating an understanding of information literacy in a broader discursive framework requires us to rethink our hitherto concepts and understandings of information literacy as socio-political skills and not mere technical search skills Originality/value - Rarely is information literacy discussed and understood from social-theoretical perspectives. This article illuminates how an analysis of information literacy from the perspective of the theory of the public sphere can open up for an understanding of information literacy socio-political skills. Thus, the article has contributed with a new interpretation of information literacy.

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Abstract

This book explores two main models of Information Literacy or IL: the SCONUL (Society of College, National and University Libraries) Seven Pillars of Information Skills and the IL competencies identified by the ALA (American Library Association). Practical examples for the development of IL skills identified by these models are illustrated using printed and web-based resources. The process of integrating IL provision within a programme of study is outlined to illustrate two strategies underpinning this integration at generic-skills level, the 'plug & play' approach, and at subject-specific level, the 'research skills approach'. A range of diagnostic and assessment methods, to monitor the iterative process of IL skills development, are also included.

Content

Key Features - Explores practical applications of two major IL models - Explores strategies to integrate IL provision in a multi-disciplinary environment - Offers a range of learning and evaluation strategies appropriate for, as well as resources associated with, IL provision - Provides a gateway to generic and subject specific IL resources by complementing the publication with web-based access to an online collection relevant to Information Research and a range of web-based tutorials (existing and customised) to develop IL skills for online environments Readership Information practitioners operating in teaching as well as library support roles who are interested, or required, to develop IL. Academics in management positions responsible for the implementation of learning and teaching strategies. Contents Introduction From user education to IL: national and international perspectives - technological advancements and access to information; changes in higher education institutions: the student-centred learning approach; information practitioner as facilitator ('Sage an the stage vs. Guide an the side') IL models - SCONUUs Seven Pillars of Information Skills principles of progressions and iteration; ALA/ALRC: information competency standards for higher education (principle of self-directed learning); comparative analysis of the two models Practical applications of IL - provision through the level of competence: the plug & play approach (assessing IL skills); provision through integration by subject: the research skills approach; IL and pedagogy (studentcentred learning; transferability of skills) Challenges - IL and the 'what do I do now?' Syndrome; design and resource implications of IL provision