Search (406 results, page 1 of 21)

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Abstract

Organizing and providing access to the resources an the Internet has been a problem area in spite of the availability of sophisticated search engines and other Software tools. There have been several attempts to organize the resources an the World Wide Web. Some of them have tried to use traditional library classification schemes such as the Library of Congress Classification, the Dewey Decimal Classification and others. However there is a need to assign proper subject headings to them and present them in a logical or hierarchical sequence to cater to the need for browsing. This paper attempts to describe an experimental system designed to organize and provide access to web documents using a faceted pre-coordinate indexing system based an the Deep Structure Indexing System (DSIS) derived from POPSI (Postulate based Permuted Subject Indexing) of Bhattacharyya, and the facet analysis and chain indexing system of Ranganathan. A prototype Software System has been designed to create a database of records specifying Web documents according to the Dublin Core and to input a faceted subject heading according to DSIS. Synonymous terms are added to the Standard terms in the heading using appropriate symbols. Once the data are entered along with a description and the URL of the web document, the record is stored in the System. More than one faceted subject heading can be assigned to a record depending an the content of the original document. The System stores the Surrogates and keeps the faceted subject headings separately after establishing a link. The search is carried out an index entries derived from the faceted subject heading using the chain indexing technique. If a single term is Input, the System searches for its presence in the faceted subject headings and displays the subject headings in a sorted sequence reflecting an organizing sequence. If the number of retrieved Keadings is too large (running into more than a page) the user has the option of entering another search term to be searched in combination. The System searches subject headings already retrieved and looks for those containing the second term. The retrieved faceted subject headings can be displayed and browsed. When the relevant subject heading is selected the system displays the records with their URLs. Using the URL, the original document an the web can be accessed. The prototype system developed in a Windows NT environment using ASP and a web server is under rigorous testing. The database and Index management routines need further development.
An interesting but somewhat confusing article telling how the writers described web pages with Dublin Core metadata, including a faceted classification, and built a system that lets users browse the collection through the facets. They seem to want to cover too much in a short article, and unnecessary space is given over to screen shots showing how Dublin Core metadata was entered. The screen shots of the resulting browsable system are, unfortunately, not as enlightening as one would hope, and there is no discussion of how the system was actually written or the technology behind it. Still, it could be worth reading as an example of such a system and how it is treated in journals.

Source

Knowledge organization. 29(2002) no.2, S.61-77

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Abstract

Purpose - The "photosharing" site Flickr is one of the most commonly cited examples used to define Web2.0. This paper aims to explore where Flickr's real novelty lies, examining its functionality and its place in the world of amateur photography. Several optimistic views of the impact of Flickr such as its facilitation of citizen journalism, "vernacular creativity" and in learning as an "affinity space" are evaluated. Design/methodology/approach - The paper draws on a wide range of sources including published interviews with its developers, user opinions expressed in forums, telephone interviews and content analysis of user profiles and activity. Findings - Flickr's development path passes from an innovative social game to a relatively familiar model of a web site, itself developed through intense user participation but later stabilising with the reassertion of a commercial relationship to the membership. The broader context of the impact of Flickr is examined by looking at the institutions of amateur photography and particularly the code of pictorialism promoted by the clubs and industry during the twentieth century. The nature of Flickr as a benign space is premised on the way the democratic potential of photography is controlled by such institutions. The limits of optimistic claims about Flickr are identified in the way that the system is designed to satisfy commercial purposes, continuing digital divides in access and the low interactivity and criticality on Flickr. Originality/value - Flickr is an interesting source of change, but can only be understood in the perspective of long-term development of the hobby and wider social processes. By setting Flickr in such a broad context, its significance and that of Web2.0 more generally can be fully assessed.

Date

30.12.2008 19:38:22

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Abstract

A novel idea of media agent is briefly presented, which can automatically build a personalized semantic index of Web media objects for each particular user. Because the Web is a rich source of multimedia data and the text content on the Web pages is usually semantically related to those media objects on the same pages, the media agent can automatically collect the URLs and related text, and then build the index of the multimedia data, on behalf of the user whenever and wherever she accesses these multimedia data or their container Web pages. Moreover, the media agent can also use an off-line crawler to build the index for those multimedia objects that are relevant to the user's favorites but have not accessed by the user yet. When the user wants to find these multimedia data once again, the semantic index facilitates text-based search for her.

Date

29. 9.2001 17:37:16

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Abstract

Users move from one state (or task) to another in an information system's labyrinth as they try to accomplish their work, and the amount of time they spend in each state varies. This article uses continuous-time stochastic models, mainly based on semi-Markov chains, to derive user state transition patterns (both in rates and in probabilities) in a Web-based information system. The methodology was demonstrated with 126,925 search sessions drawn from the transaction logs of the University of California's MELVYL® library catalog system (www.melvyLucop.edu). First, user sessions were categorized into six groups based on their similar use of the system. Second, by using a three-layer hierarchical taxonomy of the system Web pages, user sessions in each usage group were transformed into a sequence of states. All the usage groups but one have third-order sequential dependency in state transitions. The sole exception has fourth-order sequential dependency. The transition rates as well as transition probabilities of the semi-Markov model provide a background for interpreting user behavior probabilistically, at various levels of detail. Finally, the differences in derived usage patterns between usage groups were tested statistically. The test results showed that different groups have distinct patterns of system use. Knowledge of the extent of sequential dependency is beneficial because it allows one to predict a user's next move in a search space based on the past moves that have been made. It can also be used to help customize the design of the user interface to the system to facilitate interaction. The group CL6 labeled "knowledgeable and sophisticated usage" and the group CL7 labeled "unsophisticated usage" both had third-order sequential dependency and had the same most-frequently occurring search pattern: screen display, record display, screen display, and record display. The group CL8 called "highly interactive use with good search results" had fourth-order sequential dependency, and its most frequently occurring pattern was the same as CL6 and CL7 with one more screen display action added. The group CL13, called "known-item searching" had third-order sequential dependency, and its most frequently occurring pattern was index access, search with retrievals, screen display, and record display. Group CL14 called "help intensive searching," and CL18 called "relatively unsuccessful" both had thirdorder sequential dependency, and for both groups the most frequently occurring pattern was index access, search without retrievals, index access, and again, search without retrievals.

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Footnote

Rez. in: JASIST. 54(2003) no.9, S.906-908 (E.G. Ackermann): "In this book Harry Bruce provides a construct or view of "how and why people are using the Internet," which can be used "to inform the design of new services and to augment our usings of the Internet" (pp. viii-ix; see also pp. 183-184). In the process, he develops an analytical tool that I term the Metatheory of Circulating Usings, and proves an impressive distillation of a vast quantity of research data from previous studies. The book's perspective is explicitly user-centered, as is its theoretical bent. The book is organized into a preface, acknowledgments, and five chapters (Chapter 1, "The Internet Story;" Chapter 2, "Technology and People;" Chapter 3, "A Focus an Usings;" Chapter 4, "Users of the Internet;" Chapter 5, "The User's View of the Internet"), followed by an extensive bibliography and short index. Any notes are found at the end of the relevant Chapter. The book is illustrated with figures and tables, which are clearly presented and labeled. The text is clearly written in a conversational style, relatively jargon-free, and contains no quantification. The intellectual structure follows that of the book for the most part, with some exceptions. The definition of several key concepts or terms are scattered throughout the book, often appearing much later after extensive earlier use. For example, "stakeholders" used repeatedly from p. viii onward, remains undefined until late in the book (pp. 175-176). The study's method is presented in Chapter 3 (p. 34), relatively late in the book. Its metatheoretical basis is developed in two widely separated places (Chapter 3, pp. 56-61, and Chapter 5, pp. 157-159) for no apparent reason. The goal or purpose of presenting the data in Chapter 4 is explained after its presentation (p. 129) rather than earlier with the limits of the data (p. 69). Although none of these problems are crippling to the book, it does introduce an element of unevenness into the flow of the narrative that can confuse the reader and unnecessarily obscures the author's intent. Bruce provides the contextual Background of the book in Chapter 1 (The Internet Story) in the form of a brief history of the Internet followed by a brief delineation of the early popular views of the Internet as an information superstructure. His recapitulation of the origins and development of the Internet from its origins as ARPANET in 1957 to 1995 touches an the highlights of this familiar story that will not be retold here. The early popular views or characterizations of the Internet as an "information society" or "information superhighway" revolved primarily around its function as an information infrastructure (p. 13). These views shared three main components (technology, political values, and implied information values) as well as a set of common assumptions. The technology aspect focused an the Internet as a "common ground an which digital information products and services achieve interoperability" (p. 14). The political values provided a "vision of universal access to distributed information resources and the benefits that this will bring to the lives of individual people and to society in general" (p. 14). The implied communication and information values portrayed the Internet as a "medium for human creativity and innovation" (p. 14). These popular views also assumed that "good decisions arise from good information," that "good democracy is based an making information available to all sectors of society," and that "wisdom is the by-product of effective use of information" (p. 15). Therefore, because the Internet is an information infrastructure, it must be "good and using the Internet will benefit individuals and society in general" (p. 15).
Chapter 2 (Technology and People) focuses an several theories of technological acceptance and diffusion. Unfortunately, Bruce's presentation is somewhat confusing as he moves from one theory to next, never quite connecting them into a logical sequence or coherent whole. Two theories are of particular interest to Bruce: the Theory of Diffusion of Innovations and the Theory of Planned Behavior. The Theory of Diffusion of Innovations is an "information-centric view of technology acceptance" in which technology adopters are placed in the information flows of society from which they learn about innovations and "drive innovation adoption decisions" (p. 20). The Theory of Planned Behavior maintains that the "performance of a behavior is a joint function of intentions and perceived behavioral control" (i.e., how muck control a person thinks they have) (pp. 22-23). Bruce combines these two theories to form the basis for the Technology Acceptance Model. This model posits that "an individual's acceptance of information technology is based an beliefs, attitudes, intentions, and behaviors" (p. 24). In all these theories and models echoes a recurring theme: "individual perceptions of the innovation or technology are critical" in terms of both its characteristics and its use (pp. 24-25). From these, in turn, Bruce derives a predictive theory of the role personal perceptions play in technology adoption: Personal Innovativeness of Information Technology Adoption (PIITA). Personal inventiveness is defined as "the willingness of an individual to try out any new information technology" (p. 26). In general, the PIITA theory predicts that information technology will be adopted by individuals that have a greater exposure to mass media, rely less an the evaluation of information technology by others, exhibit a greater ability to cope with uncertainty and take risks, and requires a less positive perception of an information technology prior to its adoption. Chapter 3 (A Focus an Usings) introduces the User-Centered Paradigm (UCP). The UCP is characteristic of the shift of emphasis from technology to users as the driving force behind technology and research agendas for Internet development [for a dissenting view, see Andrew Dillion's (2003) challenge to the utility of user-centerness for design guidance]. It entails the "broad acceptance of the user-oriented perspective across a range of disciplines and professional fields," such as business, education, cognitive engineering, and information science (p. 34).
The UCP's effect an business practices is focused mainly in the management and marketing areas. Marketing experienced a shift from "product-oriented operations" with its focus an "selling the products' features" and customer contact only at the point of sale toward more service-Centered business practice ("customer Jemand orientation") and the development of one-to-one customer relationships (pp. 35-36). For management, the adoption of the UCP caused a shift from "mechanistic, bureaucratic, top-down organizational structures" to "flatter, inclusive, and participative" ones (p. 37). In education, practice shifted from the teachercentered model where the "teacher is responsible for and makes all the decisions related to the learning environment" to a learnercentered model where the student is "responsible for his or her own learning" and the teacher focuses an "matching learning events to the individual skills, aptitudes, and interests of the individual learner" (pp. 38-39). Cognitive engineering saw the rise of "user-Centered design" and human factors that were concerned with applying "scientific knowledge of humans to the design of man-machine interface systems" (p. 44). The UCP had a great effect an Information Science in the "design of information systems" (p. 47). Previous to UCP's explicit proposed by Brenda Dervin and M. Nilan in 1986, systems design was dominated by the "physical of system oriented paradigm" (p. 48). The physical paradigm held a positivistic and materialistic view of technology and (passive) human interaction as exemplified by the 1953 Cranfield tests of information retrieval mechanisms. Instead, the UCP focuses an "users rather than systems" by making the perceptions of individual information users the "centerpiece consideration for information service and system design" (pp. 47-48). Bruce briefly touches an the various schools of thought within user-oriented paradigm, such as the cognitive/self studies approach with its emphasis is an an individual's knowledge structures or model of the world [e.g., Belkin (1990)], the cognitve/context studies approach that focuses an "context in explaining variations in information behavior" [e.g., Savolainen (1995) and Dervin's (1999) sensemaking], and the social constructionism/discourse analytic theory with its focus an that language, not mental/knowledge constructs, as the primary shaper of the world as a system of intersubjective meanings [e.g., Talja 1996], (pp. 53-54). Drawing from the rich tradition of user oriented research, Bruce attempts to gain a metatheoretical understanding of the Internet as a phenomena by combining Dervin's (1996) "micromoments of human usings" with the French philosopher Bruno Latour's (1999) "conception of Circulating reference" to form what 1 term the Metatheory of Circulating Usings (pp. ix, 56, 60). According to Bruce, Latour's concept is designed to bridge "the gap between mind and object" by engaging in a "succession of finely grained transformations that construct and transfer truth about the object" through a chain of "microtranslations" from "matter to form," thereby connecting mind and object (p. 56). The connection works as long as the chain remains unbroken. The nature of this chain of "information producing translations" are such that as one moves away from the object, one experiences a "reduction" of the object's "locality, particularity, materiality, multiplicity and continuity," while simultaneously gaining the "amplification" of its "compatibility, standardization, text, calculation, circulation, and relative universality" (p. 57).
Bruce points out that Dervin is also concerned about how "we look at the world" in terms of "information needs and seeking" (p.60). She maintains that information scientists traditionally view information seeking and needs in terms of "contexts, users, and systems." Dervin questions whether or not, from a user's point of view, these three "points of interest" even exist. Rather it is the "micromoments of human usings" [emphasis original], and the "world viewings, seekings, and valuings" that comprise them that are real (p. 60). Using his metatheory, Bruce represents the Internet, the "object" of study, as a "chain of transformations made up of the micromoments of human usings" (p. 60). The Internet then is a "composite of usings" that, through research and study, is continuously reduced in complexity while its "essence" and "explanation" are amplified (p. 60). Bruce plans to use the Metatheory of Circulating Usings as an analytical "lens" to "tease out a characterization of the micromoments of Internet usings" from previous research an the Internet thereby exposing "the user's view of the Internet" (pp. 60-61). In Chapter 4 (Users of the Internet), Bruce presents the research data for the study. He begins with an explanation of the limits of the data, and to a certain extent, the study itself. The perspective is that of the Internet user, with a focus an use, not nonuse, thereby exluding issues such as the digital divide and universal service. The research is limited to Internet users "in modern economies around the world" (p. 60). The data is a synthesis of research from many disciplines, but mainly from those "associated with the information field" with its traditional focus an users, systems, and context rather than usings (p. 70). Bruce then presents an extensive summary of the research results from a massive literature review of available Internet studies. He examines the research for each study group in order of the amount of data available, starting with the most studied group professional users ("academics, librarians, and teachers") followed by "the younger generation" ("College students, youths, and young adults"), users of e-government information and e-business services, and ending with the general public (the least studied group) (p. 70). Bruce does a masterful job of condensing and summarizing a vast amount of research data in 49 pages. Although there is too muck to recapitulate here, one can get a sense of the results by looking at the areas of data examined for one of the study groups: academic Internet users. There is data an their frequency of use, reasons for nonuse, length of use, specific types of use (e.g., research, teaching, administration), use of discussion lists, use of e-journals, use of Web browsers and search engines, how academics learn to use web tools and services (mainly by self-instruction), factors affecting use, and information seeking habits. Bruce's goal in presenting all this research data is to provide "the foundation for constructs of the Internet that can inform stakeholders who will play a role in determining how the Internet will develop" (p. 129). These constructs are presented in Chapter 5.

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Abstract

Organizing and providing access to the resources an the Internet has been a problem area in spite of the availability of sophisticated search engines and other Software tools. There have been several attempts to organize the resources an the WWW. Some of them have tried to use traditional library classification schemes such as the Library of Congress Classification, the Dewey Decimal Classification and others. However there is a need to assign proper subject headings to them and present them in a logical or hierarchical sequence to cater to the need for browsing. This paper attempts to describe an experimental system designed to organize and provide access to web documents using a faceted pre-coordinate indexing system based an the Deep Structure Indexing System (DSIS) derived from POPSI (Postulate based Permuted Subject Indexing) of Bhattacharyya, and the facet analysis and chain indexing System of Ranganathan. A prototype software system has been designed to create a database of records specifying Web documents according to the Dublin Core and input a faceted subject heading according to DSIS. Synonymous terms are added to the standard terms in the heading using appropriate symbols. Once the data are entered along with a description and URL of the Web document, the record is stored in the system. More than one faceted subject heading can be assigned to a record depending an the content of the original document. The system stores the surrogates and keeps the faceted subject headings separately after establishing a link. Search is carried out an index entries derived from the faceted subject heading using chain indexing technique. If a single term is input, the system searches for its presence in the faceted subject headings and displays the subject headings in a sorted sequence reflecting an organizing sequence. If the number of retrieved headings is too large (running into more than a page) then the user has the option of entering another search term to be searched in combination. The system searches subject headings already retrieved and look for those containing the second term. The retrieved faceted subject headings can be displayed and browsed. When the relevant subject heading is selected the system displays the records with their URLs. Using the URL the original document an the web can be accessed. The prototype system developed under Windows NT environment using ASP and web server is under rigorous testing. The database and indexes management routines need further development.

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Footnote

Rez. in: JASIST 58(2007) no.4, S.608-609 (K.D. Desouza): "Richard Rogers explores the distinctiveness of the World Wide Web as a politically contested space where information searchers may encounter multiple explanations of reality. Sources of information on the Web are in constant competition with each other for attention. The attention a source receives will determine its prominence, the ability to be a provider of leading information, and its inclusion in authoritative spaces. Rogers explores the politics behind evaluating sources that are collected and housed on authoritative spaces. Information politics on the Web can be looked at in terms of frontend or back-end politics. Front-end politics is concerned with whether sources on the Web pay attention to principles of inclusivity, fairness, and scope of representation in how information is presented, while back-end politics examines the logic behind how search engines or portals select and index information. Concerning front-end politics, Rogers questions the various versions of reality one can derive from examining information on the Web, especially when issues of information inclusivity and scope of representation are toiled with. In addition, Rogers is concerned with how back-end politics are being controlled by dominant forces of the market (i.e., the more an organization is willing to pay, the greater will be the site's visibility and prominence in authoritative spaces), regardless of whether the information presented on the site justifies such a placement. In the book, Rogers illustrates the issues involved in back-end and front-end politics (though heavily slanted on front-end politics) using vivid cases, all of which are derived from his own research. The main thrust is the exploration of how various "information instruments," defined as "a digital and analytical means of recording (capturing) and subsequently reading indications of states of defined information streams (p. 19)," help capture the politics of the Web. Rogers employs four specific instruments (Lay Decision Support System, Issue Barometer, Web Issue Index of Civil Society, and Election Issue Tracker), which are covered in detail in core chapters of the book (Chapter 2-Chapter 5). The book is comprised of six chapters, with Chapter 1 being the traditional introduction and Chapter 6 being a summary of the major concepts discussed.
Chapter 2 examines the politics of information retrieval in the context of collaborative filtering techniques. Rogers begins by discussing the underpinnings of modern search engine design by examining medieval practices of knowledge seeking, following up with a critique of the collaborative filtering techniques. Rogers's major contention is that collaborative filtering rids us of user idiosyncrasies as search query strings, preferences, and recommendations are shared among users and without much care for the differences among them, both in terms of their innate characteristics and also their search goals. To illustrate Rogers' critiques of collaborative filtering, he describes an information searching experiment that he conducted with students at University of Vienna and University of Amsterdam. Students were asked to search for information on Viagra. As one can imagine, depending on a number of issues, not the least of which is what sources did one extract information from, a student would find different accounts of reality about Viagra, everything from a medical drug to a black-market drug ideal for underground trade. Rogers described how information on the Web differed from official accounts for certain events. The information on the Web served as an alternative reality. Chapter 3 describes the Web as a dynamic debate-mapping tool, a political instrument. Rogers introduces the "Issue Barometer," an information instrument that measures the social pressure on a topic being debated by analyzing data available from the Web. Measures used by the Issue Barometer include temperature of the issue (cold to hot), activity level of the debate (mild to intense), and territorialization (one country to many countries). The Issues Barometer is applied to an illustrative case of the public debate surrounding food safety in the Netherlands in 2001. Chapter 4 introduces "The Web Issue Index," which provides an indication of leading societal issues discussed on the Web. The empirical research on the Web Issues Index was conducted on the Genoa G8 Summit in 1999 and the anti-globalization movement. Rogers focus here was to examine the changing nature of prominent issues over time, i.e., how issues gained and lost attention and traction over time.

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Abstract

Majority of Austrian research relevant information available an the Web these days can be indexed by web full-text search engines. But there are still several sources of valuable information, which cannot be indexed directly. One of effective ways of getting this information to end-users is using metasearch technique. For better understanding it is important to say that metasearch engine does not use its own index. It collects search results provided by other search engines, and builds a common hit list for end users. Our prototype provides access to five sources of research relevant information available an the Austrian web.

Source

Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase

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Classification

303.48/33 22 (LoC)

DDC

303.48/33 22 (LoC)

Footnote

Rez. in: JASIST 58(2007) no.1, S.150-151 (L. Westbrook): "The purpose of this volume is to bring together various analyses by international scholars of the social and cultural impact of information technology on individuals and societies (preface, n.p.). It grew from the First International Conference on Human Perspectives in the Internet Society held in Cadiz, Spain, in 2004. The editors and contributors have addressed an impressive array of significant issues with rigorous research and insightful analysis although the resulting volume does suffer from the usual unevenness in depth and content that affects books based on conference proceedings. Although the $256 price is prohibitive for many individual scholars, the effort to obtain a library edition for perusal regarding particular areas of interest is likely to prove worthwhile. Unlike many international conferences that are able to attract scholars from only a handful of nations, this genuinely diverse conference included research conducted in Australia, Beijing, Canada, Croatia, the Czech Republic, England, Fiji, Germany, Greece, Iran, Ireland, Israel, Italy, Japan, Jordan, Malaysia, Norway, Russia, Scotland, South Africa, Sweden, Taiwan, and the United States. The expense of a conference format and governmental travel restrictions may have precluded greater inclusion of the work being done to develop information technology for use in nonindustrialized nations in support of economic, social justice, and political movements. Although the cultural variants among these nations preclude direct cross-cultural comparisons, many papers carefully provide sufficient background information to make basic conceptual transfers possible. A great strength of the work is the unusual combination of academic disciplines that contributes substantially to the depth of many individual papers, particularly when they are read within the larger context of the entire volume. Although complete professional affiliations are not universally available, the authors who did name their affiliation come from widely divergent disciplines including accounting, business administration, architecture, business computing, communication, computing, economics, educational technology, environmental management, experimental psychology, gender research in computer science, geography, human work sciences, humanistic informatics, industrial engineering, information management, informatics in transport and telecommunications, information science, information technology, management, mathematics, organizational behavior, pedagogy, psychology, telemedicine, and women's education. This is all to the good, but the lack of representation from departments of women's studies, gender studies, and library studies certainly limits the breadth and depth of the perspectives provided.
The editorial and peer review processes appear to be slightly spotty in application. All of the 55 papers are in English but a few of them are in such need of basic editing that they are almost incomprehensible in sections. Consider, for example, the following: "So, the meaning of region where we are studying on, should be discovered and then affect on the final plan" (p. 346). The collection shows a strong array of methodological approaches including quantitative, qualitative, and mixed methods studies; however, a few of the research efforts exhibit fundamental design flaws. Consider, for example, the study that "set[s] out to show that nurses as care-givers find it difficult to transfer any previously acquired technological skills into their work based on technology needs (p. 187). After studying 39 female and 6 male nurses, this study finds, not surprisingly, exactly what it "set out" to find. Rather than noting the limitations of sample size and data gathering techniques, the paper firmly concludes that nurses can be technologists "only in areas of technology that support their primary role as carers" (p. 188). Finally, some of the papers do not report on original research but are competent, if brief, summaries of theories or concepts that are covered in equal depth elsewhere. For example, a three-page summary of "the major personality and learning theories" (p. 3) is useful but lacks the intellectual depth or insight needed to contribute substantially to the field. These problems with composition, methodological rigor, and theoretical depth are not uncommon in papers designed for a broadly defined conference theme. The authors may have been writing for an in-person audience and anticipating thoughtful postpresentation discussions; they probably had no idea of the heavy price tag put on their work. The editors, however, might have kept that $256 in mind and exercised a heavier editorial hand. Perhaps the publisher could have paid for a careful subject indexing of the work as a substantive addition to the author index provided. The complexity of the subject domains included in the volume certainly merits careful indexing.
The volume is organized into 13 sections, each of which contains between two and eight conference papers. As with most conferences, the papers do not cover the issues in each section with equal weight or depth but the editors have grouped papers into reasonable patterns. Section 1 covers "understanding online behavior" with eight papers on problems such as e-learning attitudes, the neuropsychology of HCI, Japanese blogger motivation, and the dividing line between computer addiction and high engagement. Sections 2 (personality and computer attitudes), 3 (cyber interactions), and 4 (new interaction methods) each contain only two papers on topics such as helmet-mounted displays, online energy audits, and the use of ICT in family life. Sections 6, 7, and 8 focus on gender issues with papers on career development, the computer literacy of Malaysian women, mentoring, gaming, and faculty job satisfaction. Sections 9 and 10 move to a broader examination of cyber society and its diversity concerns with papers on cultural identity, virtual architecture, economic growth's impact on culture, and Iranian development impediments. Section 11's two articles on advertising might well have been merged with those of section 13's ebusiness. Section 12 addressed education with papers on topics such as computer-assisted homework, assessment, and Web-based learning. It would have been useful to introduce each section with a brief definition of the theme, summaries of the major contributions of the authors, and analyses of the gaps that might be addressed in future conferences. Despite the aforementioned concerns, this volume does provide a uniquely rich array of technological analyses embedded in social context. An examination of recent works in related areas finds nothing that is this complex culturally or that has such diversity of disciplines. Cultural Production in a Digital Age (Klinenberg, 2005), Perspectives and Policies on ICT in Society (Berleur & Avgerou, 2005), and Social, Ethical, and Policy Implications of Information Technology (Brennan & Johnson, 2004) address various aspects of the society/Internet intersection but this volume is unique in its coverage of psychology, gender, and culture issues in cyberspace. The lip service often given to global concerns and the value of interdisciplinary analysis of intransigent social problems seldom develop into a genuine willingness to listen to unfamiliar research paradigms. Academic silos and cultural islands need conferences like this one-willing to take on the risk of examining the large questions in an intellectually open space. Editorial and methodological concerns notwithstanding, this volume merits review and, where appropriate, careful consideration across disciplines."

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Abstract

As the Web has become a major channel of information dissemination, many newspapers expand their services by providing electronic versions of news information on the Web. However, most investors find it difficult to search for the financial information of interest from the huge Web information space-information overloading problem. In this article, we present a personal agent that utilizes user profiles and user relevance feedback to search for the Chinese Web financial news articles on behalf of users. A Chinese indexing component is developed to index the continuously fetched Chinese financial news articles. User profiles capture the basic knowledge of user preferences based on the sources of news articles, the regions of the news reported, categories of industries related, the listed companies, and user-specified keywords. User feedback captures the semantics of the user rated news articles. The search engine ranks the top 20 news articles that users are most interested in and report to the user daily or on demand. Experiments are conducted to measure the performance of the agents based on the inputs from user profiles and user feedback. It shows that simply using the user profiles does not increase the precision of the retrieval. However, user relevance feedback helps to increase the performance of the retrieval as the user interact with the system until it reaches the optimal performance. Combining both user profiles and user relevance feedback produces the best performance

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Source

Catalogue and index. 2001, no.141, S.1-5

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Abstract

Composite indexes of digital preparedness, such as the Networked Readiness Index (NRI) and the Digital Opportunity Index (DOI), have caused a great deal of confusion in the more general literature on the digital divide. For whereas one would expect preparedness to be an input into the utilization of information technologies (the digital divide), the recent indicators add inputs and outputs, or means and ends. I suggest instead two separate indexes for means and ends, which can be more usefully related to one another in terms of productivity (one index divided by the other), or as dependent and independent variables (one index in a functional relationship to the other).

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Abstract

This paper focuses on the need for knowledge organization (KO) tools, such as library classifications, thesauri and subject heading systems, to be fully disclosed and available in the open network environment. The authors look at the place and value of traditional library knowledge organization tools in relation to the technical environment and expectations of the Semantic Web. Future requirements in this context are explored, stressing the need for KO systems to support semantic interoperability. In order to be fully shareable KO tools need to be reframed and reshaped in terms of conceptual and data models. The authors suggest that some useful approaches to this already exist in methodological and technical developments within the fields of ontology modelling and lexicographic and terminological data interchange.

Date

29. 8.2004 9:26:23

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Abstract

This article focuses on the process of scientific and scholarly communication. Data on open access publications on the Internet not only provides a supplement to the traditional citation indexes but also enables analysis of the microprocesses and daily practices that constitute scientific communication. This article focuses on a stage in the life cycle of scientific and scholarly information that precedes the publication of formal research articles in the scientific and scholarly literature. Binomial logistic regression models are used to analyse precise mechanisms at work in the transformation of a working paper (WP) into a journal article (JA) in the field of economics. The study unveils a fine-grained process of adapting WPs to their new context as JAs by deleting and adding literature references, which perhaps can be best captured by the term sculpting.

Date

22. 3.2009 18:59:25

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Footnote

Rez. in: IWP 60(2009) H.4, S.245 (J. Fassbender): "Heather Heddens Buch über Website-Indexing gehört zur Indexing Specialties-Serie, die vom Information Today-Verlag in Zusammenarbeit mit der American Society of Indexers herausgegeben wird. Der Bereich Website-Indexing befasst sich mit der Index-Erstellung und -Pflege für Websites und Intranets - ähnlich zu Registern für Printpublikationen. Ein Website-Index hat oft die Bezeichnung Site Index oder A-Z Index und sollte zudem nicht mit Site Maps verwechselt werden. Das Buch füllt gerade auch hierzulande eine Riesenlücke aus: Nach Einschätzung des Deutschen Netzwerks der Indexer (DNI) ist das Wissensdefizit über Website-Indexing in der deutschen Web- und IT-Szene enorm. Die Autorin beginnt in diesem Sinne auch gleich mit zwei Kernaussagen des Buches: 1. Website-Indexing sei deshalb in der Web-Szene nicht so verbreitet, weil die Kenntnisse der Methoden zur Index-Erstellung fehlen und/oder die nötigen Tools unbekannt sind. 2. Ein guter Index stelle für viele Sites die effektivste Suchmethode dar - trotz der Konkurrenz zu Navigationsmenüs und Sucheingabe. Verdeutlicht werden sodann die Unterschiede zu Print-Registern, der bedeutendste betrifft die Locators (Fundstellen), die in der Regel keine Seitenangaben, sondern Links sind.
Ein Kapitel über HTML-Grundlagen ist für diejenigen Indexer gedacht, die sich in diesem Bereich bisher nicht oder wenig auskennen. Ein weiteres Kapitel verdeutlicht die HTML-Tags, die speziell für die Website-Index-Erstellung von Bedeutung sind. Die Erläuterungen zu Cascading Style Sheets (CSS) ist ausreichend, aber etwas knapp; hier wären einige CSS-Techniken für Fortgeschrittene von Interesse gewesen. Auf die Möglichkeiten von Konvertierungs-Tools (wie HTML/Prep), mit denen Dokumente ins HTML-Format umgewandelt werden können, sowie von Online Help Authoring Tools wird ebenfalls eingegangen. Sie bilden eine gute Ergänzung zu den indexspezifischen HTML-Erläuterungen. Das Thema XML ist bewusst ausgeschlossen worden, um sich vom Fokus des Buches nicht zu weit zu entfernen. Dennoch hätte man sich als Leser zumindest ein paar grundsätzliche Erläuterungen im Kontext zum Website-Indexing gewünscht. Ein Kapitel über Dedicated-IndexingSoftware behandelt deren Möglichkeiten einer Index-Erstellung für Websites. Die Autorin argumentiert überzeugend, dass die großen Vorteile dieser von Indexern weltweit am meisten eingesetzten Software deren mächtige Möglichkeiten zur Erstellung, Bearbeitung, Veränderung und Kontrolle von Index-Einträgen sind, was einer hohen Index-Qualität zugute kommt. Die HTML-Ausgabe-Optionen dieser Software-Art sind allerdings etwas eingeschränkter, so dass der Output oft einer Nachbearbeitung bedarf. Es folgen zwei Kapitel über spezielle Website-Indexing-Software. XRefHT (gesprochen: Shreft) ist eine Freeware, die von Prof. Timothy Craven (University of Western Ontario) entwickelt wurde. HTML Indexer ist eine kommerziell erhältliche Software. Detailliert erläutert werden, welche Elemente von Web-Seiten von den beiden Programmen für Index-Einträge berücksichtigt werden, wie Index-Einträge und Querverweise erstellt und bearbeitet und wie die Register aktualisiert werden können.
Zwei Kapitel behandeln die Vorgehensweise bei der Index-Erstellung sowie die vielfältigen Aspekte der Index-Gestaltung. Anhand vieler Beispiele werden die Besonderheiten, aber auch Parallelen zu Printregistern beleuchtet, z. B. bestehende und neu einzufügende Anker, Berücksichtigung verschiedener Seiten-Arten und -Formate, Umgang mit mehreren Locatorn pro Eintrag, Navigation innerhalb des Site Indexes. Das Schlusskapitel widmet sich den Business-Aspekten des Website-Indexing, auch aus Freelancer-Sicht. Erläutert werden z. B., welche Arten von Websites in Frage kommen und wie die Fortführung der Indexierung berücksichtigt wird. Der Index des Buches ist insgesamt von guter Qualität, wie man es von den Indexing-Büchern des Information Today-Verlages gewöhnt ist - ja sogar von exzellenter Qualität im Vergleich zu vielen unzureichenden Registern deutschsprachiger Fachbücher. Mit fünf Prozent Umfang im Verhältnis zur Anzahl der inhaltlichen Seiten hat der Index eine gute Standardlänge. Wesentliche Indexierungstechniken, wie Untereinträge, siehe- und siehe auch-Querverweise, vollständige Seitenbereichsangaben (d. h. ohne die wenig hilfreichen ff.-Angaben) kommen zum Einsatz. Einige Untereinträge tauchen allerdings nicht auch als Haupteintrag auf; so findet man z. B. "indexing rates" nur als Untereintrag des Haupteintrages "Business and index market". Die typographische und satztechnische Qualität des Registers ist ebenfalls gut, z. B. unterschiedliche Einrückungen von Untereinträgen und deren Zeilenumbrüchen. Insgesamt gesehen ist Indexing Specialties: Web Sites ein sehr empfehlenswertes Buch, das ein wichtiges (und bisher vernachlässigtes) Thema abdeckt."

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Content

Einführung.- Grundlagen des Web-Designs.- Usability und Usability Engineering.- Usability Engineering und das Web.- Methodenfragen zur Usability Evaluation.Expertenorientierte Methoden.- Benutzerorientierte Methoden.- Suchmaschinenorientierte Methoden.- Literatur.Glossar.- Index.- Checklisten.

Date

22. 3.2008 14:24:08

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Date

22. 1.2000 19:29:08

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Abstract

The paper presents the results of a study on usability methods for evaluating Web sites. It summarizes the "Heuristics for Web Communications," and reports the practical experiences with these heuristics, contrasting them with the "Keevil Index" and combining them with user testing with thinking aloud. It concludes that working with the "Heuristics for Web Communications" takes more time and effort than working with the "Keevil Index," but produces more consistent results. The heuristics proved to be applicable both in heuristic evaluation and in combination with user testing.

Content

Der Beitrag präsentiert eine Studie über Evaluationsmethoden zur WebUsability. Er beschreibt die "Heuristics for Web Communications" und berichtet von den praktischen Erfahrungen mit den Heuristiken, die mit dem "Keevil Index" verglichen und mit Benutzertests mit lautem Denken kombiniert werden. Das Ergebnis zeigt, dass eine Evaluation mit den beschriebenen Heuristiken gegenüber dem "Keevil Index" mehr Zeit und Aufwand erfordert, aber konsistentere Ergebnisse bringt. Die Heuristiken haben sich sowohl in der experten-zentrierten Evaluation als auch in Kombination mit dem Benutzertest insgesamt als geeignete Evaluationsmethode erwiesen

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Abstract

This study developed a specialized directory system using an automatic classification technique. Economics was selected as the subject field for the classification experiments with Web documents. The classification scheme of the directory follows the DDC, and subject terms representing each class number or subject category were selected from the DDC table to construct a representative term dictionary. In collecting and classifying the Web documents, various strategies were tested in order to find the optimal thresholds. In the classification experiments, Web documents in economics were classified into a total of 757 hierarchical subject categories built from the DDC scheme. The first and second experiments using the representative term dictionary resulted in relatively high precision ratios of 77 and 60%, respectively. The third experiment employing a machine learning-based k-nearest neighbours (kNN) classifier in a closed experimental setting achieved a precision ratio of 96%. This implies that it is possible to enhance the classification performance by applying a hybrid method combining a dictionary-based technique and a kNN classifier

Source

Journal of information science. 29(2003) no.2, S.117-126