Search (107 results, page 1 of 6)

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Abstract

The World Wide Web is rapidly filling with more text than anyone could have imagined even a short time ago, but the task of isolating relevant parts of this vast information has become just that much more daunting. Richard Belew brings a cognitive perspective to the study of information retrieval as a discipline within computer science. He introduces the idea of Finding Out About (FDA) as the process of actively seeking out information relevant to a topic of interest and describes its many facets - ranging from creating a good characterization of what the user seeks, to what documents actually mean, to methods of inferring semantic clues about each document, to the problem of evaluating whether our search engines are performing as we have intended. Finding Out About explains how to build the tools that are useful for searching collections of text and other media. In the process it takes a close look at the properties of textual documents that do not become clear until very large collections of them are brought together and shows that the construction of effective search engines requires knowledge of the statistical and mathematical properties of linguistic phenomena, as well as an appreciation for the cognitive foundation we bring to the task as language users. The unique approach of this book is its even handling of the phenomena of both numbers and words, making it accessible to a wide audience. The textbook is usable in both undergraduate and graduate classes on information retrieval, library science, and computational linguistics. The text is accompanied by a CD-ROM that contains a hypertext version of the book, including additional topics and notes not present in the printed edition. In addition, the CD contains the full text of C.J. "Keith" van Rijsbergen's famous textbook, Information Retrieval (now out of print). Many active links from Belew's to van Rijsbergen's hypertexts help to unite the material. Several test corpora and indexing tools are provided, to support the design of your own search engine. Additional exercises using these corpora and code are available to instructors. Also supporting this book is a Web site that will include recent additions to the book, as well as links to sites of new topics and methods.

LCSH

Search engines / Programming
Web search engines

Subject

Search engines / Programming
Web search engines

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Abstract

Enthält neben allgemeinen Kapiteln (Serach engines in general - Common search options) eine Besprechung der einzelnen Suchmaschinen und ihrer Charakteristika

LCSH

Web search engines

Subject

Web search engines

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Abstract

The second edition of Understanding Search Engines: Mathematical Modeling and Text Retrieval follows the basic premise of the first edition by discussing many of the key design issues for building search engines and emphasizing the important role that applied mathematics can play in improving information retrieval. The authors discuss important data structures, algorithms, and software as well as user-centered issues such as interfaces, manual indexing, and document preparation. Significant changes bring the text up to date on current information retrieval methods: for example the addition of a new chapter on link-structure algorithms used in search engines such as Google. The chapter on user interface has been rewritten to specifically focus on search engine usability. In addition the authors have added new recommendations for further reading and expanded the bibliography, and have updated and streamlined the index to make it more reader friendly.

LCSH

Web search engines

Subject

Web search engines

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LCSH

Web search engines

Subject

Web search engines

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Content

Inhalt: Image and Pattern Recognition: Compression, Image processing, Signal Processing Architectures, Signal Processing for Communication, Signal Processing Implementation, Speech Compression, and Video Coding Architectures. Languages and Systems: Algorithms, Databases, Embedded Systems and Applications, File Systems and I/O, Geographical Information Systems, Kernel and OS Structures, Knowledge Based Systems, Modeling and Simulation, Object Based Software Engineering, Programming Languages, and Programming Models and tools. Parallel Processing: Distributed Scheduling, Multiprocessing, Real-time Systems, Simulation Modeling and Development, and Web Applications. New trends in computing: Computers for People of Special Needs, Fuzzy Inference, Human Computer Interaction, Incremental Learning, Internet-based Computing Models, Machine Intelligence, Natural Language Processing, Neural Networks, and Online Decision Support System

LCSH

Software Engineering/Programming and Operating Systems

Subject

Software Engineering/Programming and Operating Systems

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Abstract

Are we at a turning point in digital information? The expansion of the internet was unprecedented; search engines dealt with it in the only way possible - scan as much as they could and throw it all into an inverted index. But now search engines are beginning to experiment with deep web searching and attention to taxonomies, and the semantic web is demonstrating how much more can be done with a computer if you give it knowledge. What does this mean for the skills and focus of the information science (or sciences) community? Should information designers and information managers work more closely to create computer based information systems for more effective retrieval? Will information science become part of computer science and does the rise of the term informatics demonstrate the convergence of information science and information technology - a convergence that must surely develop in the years to come? Issues and questions such as these are reflected in this monograph, a collection of essays written by some of the most pre-eminent contributors to the discipline. These peer reviewed perspectives capture insights into advances in, and facets of, information science, a profession in transition. With an introduction from Jack Meadows the key papers are: Meeting the challenge, by Brian Vickery; The developing foundations of information science, by David Bawden; The last 50 years of knowledge organization, by Stella G Dextre Clarke; On the history of evaluation in IR, by Stephen Robertson; The information user, by Tom Wilson A; The sociological turn in information science, by Blaise Cronin; From chemical documentation to chemoinformatics, by Peter Willett; Health informatics, by Peter A Bath; Social informatics and sociotechnical research, by Elisabeth Davenport; The evolution of visual information retrieval, by Peter Enser; Information policies, by Elizabeth Orna; Disparity in professional qualifications and progress in information handling, by Barry Mahon; Electronic scholarly publishing and open access, by Charles Oppenheim; Social software: fun and games, or business tools? by Wendy A Warr; and, Bibliometrics to webometrics, by Mike Thelwall. This monograph previously appeared as a special issue of the "Journal of Information Science", published by Sage. Reproduced here as a monograph, this important collection of perspectives on a skill set in transition from a prestigious line-up of authors will now be available to information studies students worldwide and to all those working in the information science field.

Date

22. 2.2013 11:35:35

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Classification

025.04071 / 22

Content

Web searching and the teaching paradox -- Understanding our audience -- Choosing the instructional session types -- Online tutorials : friend or foe? -- Organization : focus, length, and goals -- Terminology -- Content : Web search features -- Content : primary concepts -- Additional content : image searching, news, usenet, and more -- The search engines -- Creating a framed workshop Web page -- Presentation tips, tricks, and shortcuts -- Tales from the trenches : anecdotes, examples, and exercises.

DDC

025.04071 / 22

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Abstract

This comprehensive volume offers usable information for people at all levels of Internet savvy. It can teach librarians, students, and patrons how to search the Internet more systematically. It also helps information professionals design more efficient, effective search engines and Web pages.

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Content

6. Organization of Integrated Knowledge in the Electronic Environment. The Internet José Antonio SALVADOR OLIVÁN, José Maria ANGÓS ULLATE and Maria Jesús FERNÁNDEZ RUÍZ: Organization of the Information about Health Resources an the Internet; Eduardo PEIS, Antonio RUIZ, Francisco J. MUNOZ-FERNÁNDEZ and Francisco de ALBA QUINONES: Practical Method to Code Archive Findings Aids in Internet Marthinus; S. VAN DER WALT: An Integrated Model For The Organization Of Electronic Information/Knowledge in Small, Medium and Micro Enterprises (Smme's) in South Africa; Ricardo EITO BRUN: Software Development and Reuse as Knowledge Management; Practice Roberto POLI: Framing Information; 7. Models and Methods for Knowledge Organization and Conceptual Relationships Terence R. SMITH, Marcia Lei ZENG, and ADEPT Knowledge Organization Team: Structured Models of Scientific Concepts for Organizing, Accessing, and Using Learning Materials; M. OUSSALAH, F. GIRET and T. KHAMMACI: A kr Multi-hierarchies/Multi-Views Model for the Development of Complex Systems; Jonathan FURNER: A Unifying Model of Document Relatedness for Hybrid Search Engines; José Manuel BARRUECO and Vicente Julián INGLADA: Reference Linking in Economics: The Citec Project; Allyson CARLYLE and Lisa M. FUSCO: Equivalence in Tillett's Bibliographic Relationships Taxonomy: a Revision; José Antonio FRÍAS and Ana Belén RÍOS HILARIO: Visibility and Invisibility of the Kindship Relationships in Bibliographic Families of the Library Catalogue; 8. Integration of Knowledge in the Internet. Representing Knowledge in Web Sites Houssem ASSADI and Thomas BEAUVISAGE: A Comparative Study of Six French-Speaking Web Directories; Barbara H. KWASNIK: Commercial Web Sites and The Use of Classification Schemes: The Case of Amazon.Com; Jorge SERRANO COBOS and Ana M' QUINTERO ORTA: Design, Development and Management of an Information Recovery System for an Internet Website: from Documentary Theory to Practice; José Luis HERRERA MORILLAS and M' del Rosario FERNÁNDEZ FALERO: Information and Resources About Bibliographic Heritage an The Web Sites of the Spanish Universities; J.F. ALDANA, A.C. GÓMEZ, N. MORENO, A. J. NEBRO, M.M. ROLDÁN: Metadata Functionality for Semantic Web Integration; Uta PRISS: Alternatives to the "Semantic Web": Multi-Strategy Knowledge Representation; 9. Models and Methods for Knowledge Integration in Information Systems Rebecca GREEN, Carol A. BEAN and Michele HUDON: Universality And Basic Level Concepts; Grant CAMPBELL: Chronotope And Classification: How Space-Time Configurations Affect the Gathering of Industrial Statistical Data; Marianne LYKKE NIELSEN and Anna GJERLUF ESLAU: Corporate Thesauri - How to Ensure Integration of Knowledge and Reflections of Diversity; Nancy WILLIAMSON: Knowledge Integration and Classification Schemes; M.V. HURTADO, L. GARCIA and J.PARETS: Semantic Views over Heterogeneous and Distributed Data Repositories: Integration of Information System Based an Ontologies; Fernando ELICHIRIGOITY and Cheryl KNOTT MALONE: Representing the Global Economy: the North American Industry Classification System;
10. Applications of Artificial Intelligence Techniques to Information Retrieval (Part I) Christopher S.G. KHOO, Karen NG and Shiyan OU: An Exploratory Study of Human Clustering Of Web Pages; Stephane CHAUDIRON, Majid IHADJADENE and François ROLE: Authorial Index Browsing in an XML Digital Library; Xavier POLANCO: Clusters, Graphs, and Networks for Analyzing Internet-Web-Supported Communication within a Virtual Community; E. HERRERA-VIEDMA, O. CORDÓN, J.C. HERRERA, M. LUQUE: An IRS Based an Multi-Granular Linguistic Information; Pedro CUESTA, Alma M. GÓMEZ and Francisco J. RODRÍGUEZ: Using Agents for Information Retrieval; 11. Integration of Knowledge in Multicultural Domain-Oriented and General Systems. (Part I) Antonio GARCIA JIMANEZ, Alberto DÍAZ ESTEBAN and Pablo GERVÁS: Knowledge Organization in a Multilingual System for the Personalization of Digital News Services: How to Integrate Knowledge; Marfa J. LÓPEZ-HUERTAS and Mario BARITA: Knowledge Representation and Organization of Gender Studies an the Internet: Towards Integration; Victoria FRANCU: Language-Independent Structures and Multilingual Information Access Annelise Mark PEJTERSEN and Hanne ALBRECHTSEN Models for Collaborative Integration of Knowledge; 12. Applications of Artificial Intelligence Techniques to Information Retrieval (Part II) C. LOPEZ-PUJALTE, V.P. GUERRERO, F. de MOYA-ANEGÓN: Evaluation of the Application of Genetic Algorithms to Relevance Feedback; O. CORDÓN, E. HERRERA-VIEDMA, M. LUQUE, F. de MOYA,ANEGÓN and C. ZARCO: An Inductive Query by Example Technique for Extended Boolean Queries Based an Simulated Annealing-Programming; Vfctor HERRERO-SOLANA and F. de MOYA-ANEGÓN: Graphical Table of Contents (GTOC) for Library Collections: the Aplication of UDC Codes for the Subject Maps; Luis M. CAMPOS, Juan M. FERNEZ-LUNA and Juan HUSTE: Managing Documents with Bayesian Belief Networks: A Brief Survey of Applications and Models; 13. Epistemological Approaches to Classification Principles, Design and Construction Birger HJOERLAND: The Methodology Of Constructing Classification Schemes: A discussion of the State-of-the-Art; Hope OLSON, Juliet NIELSEN and Shona R. DIPPIE: Encyclopaedist Rivalry, Classificatory Commonality, Illusory Universality; Jian QIN: Evolving Paradigms of Knowledge Representation and Organization: A Comparative Study of classification, XML/DTD and Ontology; Jens-Erik MAI: Is Classification Theory Possible? Rethinking Classification Research; I.C. McILWAINE: Where Have All The Flowers Gone? An Investigation Into The Fate of Some Special Classification Schemes; 14. Professional Ethics. Users and Information Structures. Evaluation of Systems J. Carlos FERNÁNDEZ-MOLINA and J. Augusto c. GUIMARAES: Ethical Aspects of Knowledge Organization and Representation in the Digital Environment: Their Articulation in Professional Codes of Ethics; Ali Asghar SHIRI, Crawford REVIE and Gobinda CHOWDHURY: Assessing the Impact of User Interaction with Thesaural Knowledge Structures: A Quantitative Analysis Framework; Carmen CARO CASTRO and Críspulo TRAVIESO RODRÍGUEZ: Ariadne's Thread: Knowledge Structures for Browsing in OPAC's; Linda BANWELL: Developing and Evaluation Framework For a Supranational Digital Library; Antonio L. GARCIA GUTIÉRREZ: Knowledge Organization From a "culture of the Border": Towards a Transcultural Ethics of Mediation; Christopher KING, David H. MARWICK and M. Howard WILLIAMS: The Importance of Context in Resolving of Confliets when Sharing User Profiles;

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LCSH

Web search engines / Handbooks, manuals, etc.

Subject

Web search engines / Handbooks, manuals, etc.

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Abstract

Enormous expanses of the Internet are unreachable with standard Web search engines. This book provides the key to finding these hidden resources by identifying how to uncover and use invisible Web resources. Mapping the invisible Web, when and how to use it, assessing the validity of the information, and the future of Web searching are topics covered in detail. Only 16 percent of Net-based information can be located using a general search engine. The other 84 percent is what is referred to as the invisible Web-made up of information stored in databases. Unlike pages on the visible Web, information in databases is generally inaccessible to the software spiders and crawlers that compile search engine indexes. As Web technology improves, more and more information is being stored in databases that feed into dynamically generated Web pages. The tips provided in this resource will ensure that those databases are exposed and Net-based research will be conducted in the most thorough and effective manner. Discusses the use of online information resources and problems caused by dynamically generated Web pages, paying special attention to information mapping, assessing the validity of information, and the future of Web searching.

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Classification

006.7 22

Date

7. 3.2007 19:30:22

DDC

006.7 22

Footnote

Rez. in: JASIST 58(2007) no.3, S.457-458 (A.M.A. Ahmad): "The concept of the semantic web has emerged because search engines and text-based searching are no longer adequate, as these approaches involve an extensive information retrieval process. The deployed searching and retrieving descriptors arc naturally subjective and their deployment is often restricted to the specific application domain for which the descriptors were configured. The new era of information technology imposes different kinds of requirements and challenges. Automatic extracted audiovisual features are required, as these features are more objective, domain-independent, and more native to audiovisual content. This book is a useful guide for researchers, experts, students, and practitioners; it is a very valuable reference and can lead them through their exploration and research in multimedia content and the semantic web. The book is well organized, and introduces the concept of the semantic web and multimedia content analysis to the reader through a logical sequence from standards and hypotheses through system examples, presenting relevant tools and methods. But in some chapters readers will need a good technical background to understand some of the details. Readers may attain sufficient knowledge here to start projects or research related to the book's theme; recent results and articles related to the active research area of integrating multimedia with semantic web technologies are included. This book includes full descriptions of approaches to specific problem domains such as content search, indexing, and retrieval. This book will be very useful to researchers in the multimedia content analysis field who wish to explore the benefits of emerging semantic web technologies in applying multimedia content approaches. The first part of the book covers the definition of the two basic terms multimedia content and semantic web. The Moving Picture Experts Group standards MPEG7 and MPEG21 are quoted extensively. In addition, the means of multimedia content description are elaborated upon and schematically drawn. This extensive description is introduced by authors who are actively involved in those standards and have been participating in the work of the International Organization for Standardization (ISO)/MPEG for many years. On the other hand, this results in bias against the ad hoc or nonstandard tools for multimedia description in favor of the standard approaches. This is a general book for multimedia content; more emphasis on the general multimedia description and extraction could be provided.

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Abstract

This book outlines the human side of the information seeking process, and focuses on the aspects of this process that can best be supported by the user interface. It describes the methods behind user interface design generally, and search interface design in particular, with an emphasis on how best to evaluate search interfaces. It discusses research results and current practices surrounding user interfaces for query specification, display of retrieval results, grouping retrieval results, navigation of information collections, query reformulation, search personalization, and the broader tasks of sensemaking and text analysis. Much of the discussion pertains to Web search engines, but the book also covers the special considerations surrounding search of other information collections.

LCSH

Web search engines

Subject

Web search engines

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Abstract

Why doesn't your home page appear on the first page of search results, even when you query your own name? How do other Web pages always appear at the top? What creates these powerful rankings? And how? The first book ever about the science of Web page rankings, "Google's PageRank and Beyond" supplies the answers to these and other questions and more. The book serves two very different audiences: the curious science reader and the technical computational reader. The chapters build in mathematical sophistication, so that the first five are accessible to the general academic reader. While other chapters are much more mathematical in nature, each one contains something for both audiences. For example, the authors include entertaining asides such as how search engines make money and how the Great Firewall of China influences research. The book includes an extensive background chapter designed to help readers learn more about the mathematics of search engines, and it contains several MATLAB codes and links to sample Web data sets. The philosophy throughout is to encourage readers to experiment with the ideas and algorithms in the text. Any business seriously interested in improving its rankings in the major search engines can benefit from the clear examples, sample code, and list of resources provided. It includes: many illustrative examples and entertaining asides; MATLAB code; accessible and informal style; and complete and self-contained section for mathematics review.

Content

Inhalt: Chapter 1. Introduction to Web Search Engines: 1.1 A Short History of Information Retrieval - 1.2 An Overview of Traditional Information Retrieval - 1.3 Web Information Retrieval Chapter 2. Crawling, Indexing, and Query Processing: 2.1 Crawling - 2.2 The Content Index - 2.3 Query Processing Chapter 3. Ranking Webpages by Popularity: 3.1 The Scene in 1998 - 3.2 Two Theses - 3.3 Query-Independence Chapter 4. The Mathematics of Google's PageRank: 4.1 The Original Summation Formula for PageRank - 4.2 Matrix Representation of the Summation Equations - 4.3 Problems with the Iterative Process - 4.4 A Little Markov Chain Theory - 4.5 Early Adjustments to the Basic Model - 4.6 Computation of the PageRank Vector - 4.7 Theorem and Proof for Spectrum of the Google Matrix Chapter 5. Parameters in the PageRank Model: 5.1 The a Factor - 5.2 The Hyperlink Matrix H - 5.3 The Teleportation Matrix E Chapter 6. The Sensitivity of PageRank; 6.1 Sensitivity with respect to alpha - 6.2 Sensitivity with respect to H - 6.3 Sensitivity with respect to vT - 6.4 Other Analyses of Sensitivity - 6.5 Sensitivity Theorems and Proofs Chapter 7. The PageRank Problem as a Linear System: 7.1 Properties of (I - alphaS) - 7.2 Properties of (I - alphaH) - 7.3 Proof of the PageRank Sparse Linear System Chapter 8. Issues in Large-Scale Implementation of PageRank: 8.1 Storage Issues - 8.2 Convergence Criterion - 8.3 Accuracy - 8.4 Dangling Nodes - 8.5 Back Button Modeling

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Content

MARCEL MACHILL / MARKUS BEILER / MARTIN ZENKER: Suchmaschinenforschung. Überblick und Systematisierung eines interdisziplinären Forschungsfeldes TEIL 1: SUCHMASCHINENREGULIERUNG UND -ÖKONOMIE URS GASSER / JAMES THURMAN: Themen und Herausforderungen der Regulierung von Suchmaschinen NORBERT SCHNEIDER: Die Notwendigkeit der Suchmaschinenregulierung aus Sicht eines Regulierers WOLFGANG SCHULZ / THORSTEN HELD: Der Index auf dem Index? Selbstzensur und Zensur bei Suchmaschinen BORIS ROTENBERG: Towards Personalised Search: EU Data Protection Law and its Implications for Media Pluralism ELIZABETH VAN COUVERING: The Economy of Navigation: Search Engines, Search Optimisation and Search Results THEO RÖHLE: Machtkonzepte in der Suchmaschinenforschung TEIL 2: SUCHMASCHINEN UND JOURNALISMUS VINZENZ WYSS / GUIDO KEEL: Google als Trojanisches Pferd? Konsequenzen der Internet-Recherche von Journalisten für die journalistische Qualität NIC NEWMAN: Search Strategies and Activities of BBC News Interactive JÖRG SADROZINSKI: Suchmaschinen und öffentlich-rechtlicher Onlinejournalismus am Beispiel tagesschau.de HELMUT MARTIN-JUNG: Suchmaschinen und Qualitätsjournalismus PHILIP GRAF DÖNHOFF / CHRISTIAN BARTELS: Online-Recherche bei NETZEITUNG.DE SUSAN KEITH: Searching for News Headlines: Connections between Unresolved Hyperlinking Issues and a New Battle over Copyright Online AXEL BUNDENTHAL: Suchmaschinen als Herausforderung für Archive und Dokumentationsbereiche am Beispiel des ZDF BENJAMIN PETERS: The Search Engine Democracy: Metaphors and Muhammad
TEIL 3: QUALITÄT VON SUCHMASCHINEN UND NUTZERVERHALTEN] DIRK LEWANDOWSKI: Mit welchen Kennzahlen lässt sich die Qualität von Suchmaschinen messen? BENJAMIN EDELMAN: Assessing and Improving the Safety of Internet Search Engines HENDRIK SPECK / FREDERIC PHILIPP THIELE: Playing the Search Engines or Hacking the Box: Möglichkeiten und Gefahren von Suchmaschinen-Hacking am Beispiel von Google NATALIE KINK / THOMAS HESS: Suchmaschinen als Substitut traditioneller Medien? Erste Ergebnisse einer Studie zum Wandel der Informationsbeschaffung durch Suchmaschinen DIVINA FRAU-MEIGS: Minding the Gatekeepers: Search Engines for Young People, and the Regulatory Riddle of Harmful Content an Environmental Cognition Perspective MARCEL MACHILL / MARKUS BEILER / ULRIKE NEUMANN: Leistungsfähigkeit von wissenschaftlichen Suchmaschinen. Ein Experiment am Beispiel von Google Scholar

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LCSH

Web search engines / United States / History

Subject

Web search engines / United States / History

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LCSH

Web search engines

Subject

Web search engines