Search (4784 results, page 1 of 240)

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Abstract

The Digital Library Federation is a consortium of research libraries and related organizations in the United States that are pioneering in the use of electronic-information technologies. Each of the DLF's members, mostly research libraries, contributes to a capital fund and an annual budget to support the organization, which is administered by a directorate within the U.S. Council an Library and Information Resources. A Steering Committee, on which each member Institution is represented, guides the work, which has focused an coordinating research, identifying standards and »best practices« for digital library development, and helping to start projects that libraries need but cannot easily develop individually.The DLF convenes task forces, issues publications, sponsors a biannual Digital Library Forum, and maintains a Web site.

Source

Zeitschrift für Bibliothekswesen und Bibliographie. 50(2003) H.3, S.124-130

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Abstract

The Ambient Wood project, carried out as part of the Equator project, set out to provide an augmented learning experience for children in an outdoor environment. Using a variety of devices, the children gathered information about the woodland habitats performing basic scientific enquiry and hypothesis testing. In this paper, we describe the supporting information infrastructure used in the project, focusing on how hypermedia tools and techniques were used to structure and deliver the information to the children, helping to orchestrate the learning activities.

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Abstract

The widely used Web search engines index and recommend individual Web pages in response to a few keywords queries to assist users in locating relevant documents. However, the Web search engines give different users the same answer set, although the users may have different preferences. A personalized Web search would carry out the search for each user according to his or her preferences. To conduct the personalized Web search, the authors provide a novel approach to model the user profile with a self-organizing map (SOM). Their results indicate that SOM is capable of helping the user to find the related category for each query used in the Web search to make a personalized Web search effective.

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Abstract

A user's understanding of the libraries they work in, and hence of what they can do in those libraries, is encapsulated in their "mental models" of those libraries. In this article, we present a focused case study of users' mental models of traditional and digital libraries based on observations and interviews with eight participants. It was found that a poor understanding of access restrictions led to risk-averse behavior, whereas a poor understanding of search algorithms and relevance ranking resulted in trial-and-error behavior. This highlights the importance of rich feedback in helping users to construct useful mental models. Although the use of concrete analogies for digital libraries was not widespread, participants used their knowledge of Internet search engines to infer how searching might work in digital libraries. Indeed, most participants did not clearly distinguish between different kinds of digital resource, viewing the electronic library catalogue, abstracting services, digital libraries, and Internet search engines as variants on a theme.

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Abstract

This paper presents a Foreign-Language Search Assistant that uses noun phrases as fundamental units for document translation and query formulation, translation and refinement. The system (a) supports the foreign-language document selection task providing a cross-language indicative summary based on noun phrase translations, and (b) supports query formulation and refinement using the information displayed in the cross-language document summaries. Our results challenge two implicit assumptions in most of cross-language Information Retrieval research: first, that once documents in the target language are found, Machine Translation is the optimal way of informing the user about their contents; and second, that in an interactive setting the optimal way of formulating and refining the query is helping the user to choose appropriate translations for the query terms.

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Abstract

The Web puzzle of online information resources often hinders end-users from effective and efficient access to these resources. Clustering resources into appropriate subject-based groupings may help alleviate these difficulties, but will it work with heterogeneous material? The University of Michigan and the University of California Irvine joined forces to test automatically enhancing metadata records using the Topic Modeling algorithm on the varied OAIster corpus. We created labels for the resulting clusters of metadata records, matched the clusters to an in-house classification system, and developed a prototype that would showcase methods for search and retrieval using the enhanced records. Results indicated that while the algorithm was somewhat time-intensive to run and using a local classification scheme had its drawbacks, precise clustering of records was achieved and the prototype interface proved that faceted classification could be powerful in helping end-users find resources.

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Abstract

Artificial intelligence (AI) is a multidisciplinary subject, typically studied as a research area within Computer Science. AI study aims at achieving a good understanding of the nature of intelligence and building intelligent agents which are computational systems demonstrating intelligent behavior. AI has been developed over more than 50 years. The topics studied in AI are quite broad, ranging from knowledge representation and reasoning, knowledge-based systems, machine learning and data mining, natural language processing, to search, image processing, robotics, and intelligent information systems. Numerous successful AI systems have been deployed in real-life applications in engineering, finance, science, health care, education, and service sectors. AI research has also significantly impacted the subject area of Library and Information Science (LIS), helping to develop smart Web search engines, personalized news filters, and knowledge-sharing and indexing systems. This entry briefly outlines the main topics studied in AI, samples some typical successful AI applications, and discusses the cross-fertilization between AI and LIS.

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Abstract

This paper investigates the availability of women's sites on the Internet in the light of the research that has been conducted into women, communications and technology. The paper draws upon a systematic evaluation of ten women's sites, covering a range of sectors including general sites, business, health and technology. The evaluation reveals that such sites offer useful sources of information on a range of subjects of potential interest to women and that they are stable and accessible resources. The sites tend to be freely accessible and apparently reputable, with little evidence of commercialism. However, there are concerns about the lack of security on the sites and a poor provision of the kind of information that is necessary to measure their authority and reliability. While all sites offer some form of interactivity, they tend to offer in each case only a small proportion of the interactive functions that might be enabled and demonstrate little awareness of the significance of these in helping women to network effectively.

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Abstract

Research into information retrieval (IR) cannot yet answer the basic question of how we can design IR systems to help people search for information with optimal levels of effectiveness. In relation to human-system interaction, we have failed to develop any valid and at the same time robust user models capable of driving practical system development. If we strip away assumptions and over-optimism relating to the generalisability of what are essentially sporadic and fragmented research efforts, the great "darkness to light" ratio characterising our knowledge of human aspects of IR becomes apparent. From a more critical and pessimistic (but by no means less realistic) perspective, we are getting nowhere fast. A range of strategies is proposed to improve the situation by supporting relatively "horizontal" as well as "vertical" knowledge integration. These consist of: greater use of pluralistic research approaches; enhanced access to research data; more multidisciplinary and multi-perspective integrative reviews and conceptual mappings; and establishing a greater critical mass of published research findings sufficient to support the generation of a less sparse and fragmented evidence-based knowledge map. The potential of electronic publishing and data access for helping achieve these goals is discussed.

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Abstract

Recent studies suggest that the wide variability in type, detail, and reliability of online information motivate expert searchers to develop procedural search knowledge. In contrast to prior research that has focused an finding relevant sources, procedural search knowledge focuses an how to order multiple relevant sources with the goal of retrieving comprehensive information. Because such procedural search knowledge is neither spontaneously inferred from the results of search engines, nor from the categories provided by domainspecific portals, the lack of such knowledge leads most novice searchers to retrieve incomplete information. In domains like healthcare, such incomplete information can lead to dangerous consequences. To address the above problem, a new kind of domain portal called a Strategy Hub was developed and tested. Strategy Hubs provide critical search procedures and associated high-quality links to enable users to find comprehensive and accurate information. We begin by describing how we collaborated with physicians to systematically identify generalizable search procedures to find comprehensive information about a disease, and how these search procedures were made available through the Strategy Hub. A controlled experiment suggests that this approach can improve the ability of novice searchers in finding comprehensive and accurate information, when compared to general-purpose search engines and domain-specific portals. We conclude with insights an how to refine and automate the Strategy Hub design, with the ultimate goal of helping users find more comprehensive information when searching in unfamiliar domains.

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Abstract

This article discusses cataloging and classification history in Mexico and how cataloging and classification have evolved according to the changes that libraries and library science have experienced on both a national and international level. The first part of the article refers to the first half of the twentieth century, detailing the origins of cataloging and classification history. The second part presents discussion of the development and consolidation of both cataloging and classification during the second half of the twentieth century. The article also discusses subject headings, automation, centralization, and union catalogs in Mexico. It discusses past difficulties in creating a union catalog at a national level and the advantages of automated systems in helping to develop this needed union catalog. The article discusses the need to resume publication of the Bibliografía Mexicana. One of the main problems that Mexican libraries have faced is a scarcity of librarians adequately prepared to perform cataloging and classification of their collections. This lack of librarians is even more acute in the Mexican states. There are insufficient numbers of students in library schools to provide the staffing that libraries demand not only for cataloguing and classification but also for many other library activities.

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Abstract

The goal of cataloging is to provide maximum access to organized information. Archival materials-the unique, unpublished byproducts of the everyday activities of organizations, families, or individuals-are valuable information resources that have been difficult to integrate into the rapidly consolidating bibliographic universe. The formal introduction of Encoded Archival Description (EAD) Version 1.0 in 1998 provided archivists with a powerful tool for overcoming this difficulty. EAD enables the encoding of archival finding aids into records that are platform-independent, machine-readable, and fully searchable, helping to standardize archival descriptive practices while increasing our progress toward union access to archival materials. The related new metadata scheme Encoded Archival Context (EAC) goes further, allowing archivists to encode information about the creators and context of creation of archival materials, and to make that information available to users as an independent resource separate from individual finding aids. This article presents an overview of the role of these metadata standards in the achievement of archival control, featuring a concise guide to the structure and use of EAD (Version 2002) and an introduction to the emerging EAC standard.

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Abstract

This article presents results from 21 semi-structured interviews with museum information professionals (MIPs) who were asked about their experiences working with information resources, tools, and technologies. Interviews were analyzed to determine (a) the challenges MIPs face as they adapt to changing technical capabilities and strive to meet the changing needs and expectations of museum users and (b) the coping mechanisms MIPs employ on the job that enable them to deal effectively with those challenges. This article explores the results of this analysis, exploring how MIPs cope with the changing nature of information work in museums by relying on thirteen different strategies including (a) assessing new technologies in relation to the museum's core mission, (b) helping museum professionals embrace new ideas about information access and provision, and (c) promoting internal practices that encourage the sharing of information and the integration of information science into museum work. This article also discusses the implications of these challenges and strategies for current and future MIPs, and assesses their impact on changing perceptions, roles, and research for information professionals in museums as they work to meet the information needs of all museum users.

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Abstract

Changing the teaching media from chalkboard to computer-based does not only develop IT-awareness among teaching staff but also enhance their readiness to teach and quality of teaching. As a result, the students pay more attention to the lectures and in the long run students get better knowledge and understanding about the course. In the developing countries reading habit is still a practice done by quite a few people. The changing of teaching media as well as the shift from teacher-centered learning to student-centered learning has changed the way students acquire knowledge and make use of the library and multimedia facilities. Gadjah Mada University has been working hard to change the method of teaching by helping the teaching staff develop IT-based teaching materials and put them on the intranet; making teaching material databases available through the digital library; and providing easier access to the library users. In addition, IM text messaging, blogs and mailinglist have been the media to discuss and share ideas and knowledge among lecturers and students too.

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Abstract

Purpose - The purpose of this paper is to explore information literacy amongst small- and medium-sized businesses (SMEs) in the UK and the USA and argue that information policy in the UK has not given sufficient attention to helping these companies navigate the ever-increasing volumes of information accessible over the internet. Design/methodology/approach - A combination of primary and secondary data have been used. The primary data consists of a survey of UK SMEs, which explored how these companies use the internet as a research tool. The results of the survey are compared to similar surveys carried out in the USA. Several significant UK policy documents are examined to find out how government policy in this area has addressed the issue of information literacy amongst SMEs. Findings - It is shown that UK SMEs wasted over £3.7 billion in 2005 in terms of time wasted through inefficient use of the internet as a research tool. Practical implications - It is argued that while government policies in this area have put resources into encouraging SMEs to adopt broadband and engage in e-commerce, they have not sufficiently addressed the issue of information literacy. Originality/value - Little research has been carried out into how SMEs use the internet as a research tool and this is the first time that a financial cost figure has been applied to inefficient searching by these organisations.

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Abstract

The aim of the work described in this paper is to evaluate the influencing effects of query-biased summaries in web searching. For this purpose, a summarisation system has been developed, and a summary tailored to the user's query is generated automatically for each document retrieved. The system aims to provide both a better means of assessing document relevance than titles or abstracts typical of many web search result lists. Through visiting each result page at retrieval-time, the system provides the user with an idea of the current page content and thus deals with the dynamic nature of the web. To examine the effectiveness of this approach, a task-oriented, comparative evaluation between four different web retrieval systems was performed; two that use query-biased summarisation, and two that use the standard ranked titles/abstracts approach. The results from the evaluation indicate that query-biased summarisation techniques appear to be more useful and effective in helping users gauge document relevance than the traditional ranked titles/abstracts approach. The same methodology was used to compare the effectiveness of two of the web's major search engines; AltaVista and Google.

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Abstract

At the University of Connecticut, we have been enticing graduate students to join graduate student trainers to learn how to answer the following questions and improve the breadth of their research: Do you need to find articles published outside your primary discipline? What are some seminal articles in your field? Have you ever wanted to know who cited an article you wrote? We are participating in Elsevier's Student Ambassador Program (SAmP) in which graduate students train their peers on "citation searching" research using Scopus and Web of Science, two tremendous citation databases. We are in the fourth semester of these training programs, and they are wildly successful: We have offered more than 30 classes and taught more than 350 students from March 2007 through March 2008. Chelsea is a Ph.D. candidate in the department of communication science at the University of Connecticut (UConn) and was trained as a librarian; she was one of the first peer trainers in the citation searching program. Stephanie is an electronic resource librarian at the University of Connecticut and is the librarian coordinating the program. Together, we would like to explain what we teach in the classes in the hopes of helping even more researchers perform better searches.

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Abstract

The JISC-funded HILT project is looking to make contact with staff in information services or projects interested in helping it test and refine its developing terminology services. The project is currently working to create pilot web services that will deliver machine-readable terminology and cross-terminology mappings data likely to be useful to information services wishing to extend or enhance the efficacy of their subject search or browse services. Based on SRW/U, SOAP, and SKOS, the HILT facilities, when fully operational, will permit such services to improve their own subject search and browse mechanisms by using HILT data in a fashion transparent to their users. On request, HILT will serve up machine-processable data on individual subject schemes (broader terms, narrower terms, hierarchy information, preferred and non-preferred terms, and so on) and interoperability data (usually intellectual or automated mappings between schemes, but the architecture allows for the use of other methods) - data that can be used to enhance user services. The project is also developing an associated toolkit that will help service technical staff to embed HILT-related functionality into their services. The primary aim is to serve JISC funded information services or services at JISC institutions, but information services outside the JISC domain may also find the proposed services useful and wish to participate in the test and refine process.

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BK

85.20 Betriebliche Information und Kommunikation

Classification

85.20 Betriebliche Information und Kommunikation

Footnote

Rez. in: JASIST 57(2006) no.14, S.1979-1980 (J.G. Williams): "The Introduction and Part I of this book presents the world of computing with a historical and philosophical overview of computers, computer applications, networks, the World Wide Web, and eBusiness based on the notion that the real world places constraints on the application of these technologies and without a formalized approach, the benefits of these technologies cannot be realized. The concepts of real world constraints and the need for formalization are used as the cornerstones for a building-block approach for helping the reader understand computing, networking, the World Wide Web, and the applications that use these technologies as well as all the possibilities that these technologies hold for the future. The author's building block approach to understanding computing, networking and application building makes the book useful for science, business, and engineering students taking an introductory computing course and for social science students who want to understand more about the social impact of computers, the Internet, and Web technology. It is useful as well for managers and designers of Web and ebusiness applications, and for the general public who are interested in understanding how these technologies may impact their lives, their jobs, and the social context in which they live and work. The book does assume some experience and terminology in using PCs and the Internet but is not intended for computer science students, although they could benefit from the philosophical basis and the diverse viewpoints presented. The author uses numerous analogies from domains outside the area of computing to illustrate concepts and points of view that make the content understandable as well as interesting to individuals without any in-depth knowledge of computing, networking, software engineering, system design, ebusiness, and Web design. These analogies include interesting real-world events ranging from the beginning of railroads, to Henry Ford's mass produced automobile, to the European Space Agency's loss of the 7 billion dollar Adriane rocket, to travel agency booking, to medical systems, to banking, to expanding democracy. The book gives the pros and cons of the possibilities offered by the Internet and the Web by presenting numerous examples and an analysis of the pros and cons of these technologies for the examples provided. The author shows, in an interesting manner, how the new economy based on the Internet and the Web affects society and business life on a worldwide basis now and how it will affect the future, and how society can take advantage of the opportunities that the Internet and the Web offer.

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Footnote

Rez. in: JASIS 54(2003) no.12, S.1168-1170 (A.D. Petrou): "Computers as persuasive technology, or Captology, is the topic of the ten chapters in B.J. Fogg's book. As the author states, the main focus of Captology is not an computer mediated communications (CMC), but rather an human computer interaction (HCI). Furthermore, according to the author, "captology focuses an the design, research, and analysis of interactive computing products created for the purpose of changing people's attitudes or behaviors. It describes the areas where technology and persuasion overlap" (p. 5). Each of the book's chapters presents theories, arguments, and examples to convince readers of a large and growing part that computing products play in persuading people to change their behaviors for the better in a variety of areas. Currently, some of the areas for which B.J. Fogg considers computing products as persuasive or influential in motivating individuals to change their behaviors include quitting smoking, practicing safer sex, eating healthier, staying in shape, improving study habits, and helping doctors develop richer empathy for the pain experienced by their patients. In the wrong hands, however, B.J. Fogg wams, the computer's power to persuade can be enlisted to support unethical social ends and to serve corporate interests that deliver no real benefits to consumers. While Captology's concerns about the ethical side of computing products as persuasive tools are summarized in a chapter an ethics, they are also incorporated as short reminders throughout the book's ten chapters. A strength of the book, however, is that the author does not take it for granted that readers will agree with him an the persuasive power for computers. In addition to the technical and social theories he articulates, B .J. Fogg presents empirical evidence from his own research and also provides many examples of computing products designed to persuade people to change their behaviors. Computers can be designed to be highly interactive and to include many modalities for persuasion to match different situations and human personalities, such as submissive or dominant. Furthermore, computers may allow for anonymity in use and can be ubiquitous. ... Yet, there is no denying an effectiveness in the arguments and empirical data put forth by B.J. Fogg about Captology's power to explain how a merging of technology with techniques of persuasion can help change human behavior for the better. The widespread influence of computing products and a need to ethically manage such influence over human behavior should command our attention as users and researchers and most importantly as designers and producers of computing products."