-
Erlhofer, S.: Suchmaschinen-Optimierung für Webentwickler : Grundlagen, Funktionsweisen und Ranking-Optimierung (2005)
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- BK
- 05.38 Neue elektronische Medien <Kommunikationswissenschaft>
- Classification
- 05.38 Neue elektronische Medien <Kommunikationswissenschaft>
- RSWK
- World Wide Web / Suchmaschine
Suchmaschine / Web Site / Ranking
- Subject
- World Wide Web / Suchmaschine
Suchmaschine / Web Site / Ranking
-
Web-2.0-Dienste als Ergänzung zu algorithmischen Suchmaschinen (2008)
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- Abstract
- Mit sozialen Suchdiensten - wie z. B. Yahoo Clever, Lycos iQ oder Mister Wong - ist eine Ergänzung und teilweise sogar eine Konkurrenz zu den bisherigen Ansätzen in der Web-Suche entstanden. Während Google und Co. automatisch generierte Trefferlisten bieten, binden soziale Suchdienste die Anwender zu Generierung der Suchergebnisse in den Suchprozess ein. Vor diesem Hintergrund wird in diesem Buch der Frage nachgegangen, inwieweit soziale Suchdienste mit traditionellen Suchmaschinen konkurrieren oder diese qualitativ ergänzen können. Der vorliegende Band beleuchtet die hier aufgeworfene Fragestellung aus verschiedenen Perspektiven, um auf die Bedeutung von sozialen Suchdiensten zu schließen.
- BK
- 05.38 / Neue elektronische Medien <Kommunikationswissenschaft>
- Classification
- 05.38 / Neue elektronische Medien <Kommunikationswissenschaft>
- Issue
- Ergebnisse des Fachprojektes "Einbindung von Frage-Antwort-Diensten in die Web-Suche" am Department Information der Hochschule für Angewandte Wissenschaften Hamburg (WS 2007/2008).
- RSWK
- World Wide Web 2.0 / Suchmaschine
- Subject
- World Wide Web 2.0 / Suchmaschine
-
Munson, K.I.: Internet search engines : understanding their design to improve information retrieval (2000)
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- Abstract
- The relationship between the methods currently used for indexing the World Wide Web and the programs, languages, and protocols on which the World Wide Web is based is examined. Two methods for indexing the Web are described, directories being briefly discussed while search engines are considered in detail. The automated approach used to create these tools is examined with special emphasis on the parts of a document used in indexing. Shortcomings of the approach are described. Suggestions for effective use of Web search engines are given
-
Erlhofer, S.: Suchmaschinen-Optimierung für Webentwickler : Grundlagen, Ranking optimieren, Tipps und Tricks; Neu: Keyword-Recherche, TYPO3-Optimierung, Usability (2006)
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- BK
- 05.38 Neue elektronische Medien <Kommunikationswissenschaft>
- Classification
- 05.38 Neue elektronische Medien <Kommunikationswissenschaft>
- RSWK
- World Wide Web / Suchmaschine
Suchmaschine / Web Site / Ranking
- Subject
- World Wide Web / Suchmaschine
Suchmaschine / Web Site / Ranking
-
Herrera-Viedma, E.; Pasi, G.: Soft approaches to information retrieval and information access on the Web : an introduction to the special topic section (2006)
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- Abstract
- The World Wide Web is a popular and interactive medium used to collect, disseminate, and access an increasingly huge amount of information, which constitutes the mainstay of the so-called information and knowledge society. Because of its spectacular growth, related to both Web resources (pages, sites, and services) and number of users, the Web is nowadays the main information repository and provides some automatic systems for locating, accessing, and retrieving information. However, an open and crucial question remains: how to provide fast and effective retrieval of the information relevant to specific users' needs. This is a very hard and complex task, since it is pervaded with subjectivity, vagueness, and uncertainty. The expression soft computing refers to techniques and methodologies that work synergistically with the aim of providing flexible information processing tolerant of imprecision, vagueness, partial truth, and approximation. So, soft computing represents a good candidate to design effective systems for information access and retrieval on the Web. One of the most representative tools of soft computing is fuzzy set theory. This special topic section collects research articles witnessing some recent advances in improving the processes of information access and retrieval on the Web by using soft computing tools, and in particular, by using fuzzy sets and/or integrating them with other soft computing tools. In this introductory article, we first review the problem of Web retrieval and the concept of soft computing technology. We then briefly introduce the articles in this section and conclude by highlighting some future research directions that could benefit from the use of soft computing technologies.
- Date
- 22. 7.2006 16:59:33
- Footnote
- Beitrag in einer Special Topic Section on Soft Approaches to Information Retrieval and Information Access on the Web
- Source
- Journal of the American Society for Information Science and Technology. 57(2006) no.4, S.511-514
-
Belew, R.K.: Finding out about : a cognitive perspective on search engine technology and the WWW (2001)
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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
- World Wide Web / Computer programs
Web search engines
- RSWK
- Suchmaschine / World Wide Web / Information Retrieval
- Subject
- Suchmaschine / World Wide Web / Information Retrieval
World Wide Web / Computer programs
Web search engines
-
Olvera Lobo, M.D.: Rendimiento de los sistemas de recuperacion de informacion en al World Wide Web : revision metodologica (2000)
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- Footnote
- Übers. d. Titels: Methodology for evaluating information retrieval in WWW search engines
-
Sherman, C.: Google power : Unleash the full potential of Google (2005)
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- Abstract
- With this title, readers learn to push the search engine to its limits and extract the best content from Google, without having to learn complicated code. "Google Power" takes Google users under the hood, and teaches them a wide range of advanced web search techniques, through practical examples. Its content is organised by topic, so reader learns how to conduct in-depth searches on the most popular search topics, from health to government listings to people.
- BK
- 05.38 / Neue elektronische Medien <Kommunikationswissenschaft>
- Classification
- 05.38 / Neue elektronische Medien <Kommunikationswissenschaft>
- LCSH
- Web search engines
World Wide Web
- Subject
- Web search engines
World Wide Web
-
Drabenstott, K.M.: Web search strategies (2000)
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- Abstract
- Surfing the World Wide Web used to be cool, dude, real cool. But things have gotten hot - so hot that finding something useful an the Web is no longer cool. It is suffocating Web searchers in the smoke and debris of mountain-sized lists of hits, decisions about which search engines they should use, whether they will get lost in the dizzying maze of a subject directory, use the right syntax for the search engine at hand, enter keywords that are likely to retrieve hits an the topics they have in mind, or enlist a browser that has sufficient functionality to display the most promising hits. When it comes to Web searching, in a few short years we have gone from the cool image of surfing the Web into the frying pan of searching the Web. We can turn down the heat by rethinking what Web searchers are doing and introduce some order into the chaos. Web search strategies that are tool-based-oriented to specific Web searching tools such as search en gines, subject directories, and meta search engines-have been widely promoted, and these strategies are just not working. It is time to dissect what Web searching tools expect from searchers and adjust our search strategies to these new tools. This discussion offers Web searchers help in the form of search strategies that are based an strategies that librarians have been using for a long time to search commercial information retrieval systems like Dialog, NEXIS, Wilsonline, FirstSearch, and Data-Star.
- Content
- "Web searching is different from searching commercial IR systems. We can learn from search strategies recommended for searching IR systems, but most won't be effective for Web searching. Web searchers need strate gies that let search engines do the job they were designed to do. This article presents six new Web searching strategies that do just that."
- Date
- 22. 9.1997 19:16:05
- Imprint
- Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science
-
Can, F.; Nuray, R.; Sevdik, A.B.: Automatic performance evaluation of Web search engines (2004)
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- Abstract
- Measuring the information retrieval effectiveness of World Wide Web search engines is costly because of human relevance judgments involved. However, both for business enterprises and people it is important to know the most effective Web search engines, since such search engines help their users find higher number of relevant Web pages with less effort. Furthermore, this information can be used for several practical purposes. In this study we introduce automatic Web search engine evaluation method as an efficient and effective assessment tool of such systems. The experiments based on eight Web search engines, 25 queries, and binary user relevance judgments show that our method provides results consistent with human-based evaluations. It is shown that the observed consistencies are statistically significant. This indicates that the new method can be successfully used in the evaluation of Web search engines.
- Source
- Information processing and management. 40(2004) no.3, S.495-514
-
Web work : Information seeking and knowledge work on the World Wide Web (2000)
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- Series
- Information science and knowledge management; vol.1
-
Lu, G.; Williams, B.; You, C.: ¬An effective World Wide Web image search engine (2001)
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- Source
- Journal of information science. 27(2001) no.1, S.27-37
-
Ding, Y.; Chowdhury, G.; Foo, S.: Organsising keywords in a Web search environment : a methodology based on co-word analysis (2000)
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- Abstract
- The rapid development of the Internet and World Wide Web has caused some critical problem for information retrieval. Researchers have made several attempts to solve these problems. Thesauri and subject heading lists as traditional information retrieval tools have been criticised for their efficiency to tackle these newly emerging problems. This paper proposes an information retrieval tool generated by cocitation analysis, comprising keyword clusters with relationships based on the co-occurrences of keywords in the literature. Such a tool can play the role of an associative thesaurus that can provide information about the keywords in a domain that might be useful for information searching and query expansion
-
Garnsey, M.R.: What distance learners should know about information retrieval on the World Wide Web (2002)
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- Abstract
- The Internet can be a valuable tool allowing distance learners to access information not available locally. Search engines are the most common means of locating relevant information an the Internet, but to use them efficiently students should be taught the basics of searching and how to evaluate the results. This article briefly reviews how Search engines work, studies comparing Search engines, and criteria useful in evaluating the quality of returned Web pages. Research indicates there are statistical differences in the precision of Search engines, with AltaVista ranking high in several studies. When evaluating the quality of Web pages, standard criteria used in evaluating print resources is appropriate, as well as additional criteria which relate to the Web site itself. Giving distance learners training in how to use Search engines and how to evaluate the results will allow them to access relevant information efficiently while ensuring that it is of adequate quality.
- Footnote
- Part of an issue devoted to "Distance learning: information access and services for virtual users", publ. by Haworth Press
-
Machill, M.; Neuberger, C.; Schweiger, W.; Wirth, W.: Wegweiser im Netz : Qualität und Nutzung von Suchmaschinen (2004)
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- Abstract
- Das Internet ist ein Kosmos an Informationen aller Art. Zwar sind die Antworten auf Abermillionen Fragen vorhanden, doch stehen Nutzer vor der Aufgabe, diese auch zu finden. Eine zentrale Rolle spielen dabei Suchmaschinen. Beim Wiederauffinden von Informationen, dem so genannten Information Retrieval, handelt es sich um ein relativ gut erforschtes Feld. Die Forschung konzentrierte sich allerdings lange auf die Frage nach dem Wiederauffinden von Informationen in gut strukturierten Datenbanken. Bis zum Aufkommen des World Wide Web war kaum an eine große Datenkollektion zu denken, die höchst unterschiedlich strukturierte Dokumente enthielt. Hinsichtlich ihrer Strukturierung lassen sich Dokumente in drei Klassen ordnen: strukturiert, unstrukturiert und schwach strukturiert. Im Bereich der professionellen Datenbanken liegen die Informationen in strukturierter Form vor: Dokumente sind in Felder geteilt, die sich gezielt durchsuchen lassen. Zusätzliche Felder enthalten in der Regel Informationen über das Dokument wie beispielsweise den Namen des Autors, das Publikationsdatum oder die Namen von im Text behandelten Personen. So lässt sich beispielsweise die Anfrage nach allen Artikeln eines bestimmten Autors in einer Zeitungsdatenbank einfach und klar beantworten. Bei Web-Dokumenten kann die Suche nicht klar eingeschränkt werden, da nicht unterschieden werden kann, ob es sich bei dem Vorkommen des eingegebenen Namens um den Autor oder eine im Text behandelte Person handelt. Bei unstrukturierten Dokumenten handelt es sich schlicht um Fließtext, dessen formale Gestaltung keinerlei Rückschlüsse auf Meta-Informationen oder Textstellen von besonderer Bedeutung zulässt.
Bei HTML-Dokumenten im World Wide Web handelt es sich um schwach strukturierte Dokumente. Zwar findet keine Trennung in Feldinhalte statt, jedoch lassen sich aus Struktur- und Gestaltungsinformationen, die dem Dokument mittels der HTMLTags beigegeben werden, Rückschlüsse auf bedeutende und weniger bedeutende Textstellen ziehen. Eine zweite Herausforderung an die Information-RetrievalForschung ist schilicht die Größe des World Wide Web. Im Umfeld der professionellen Informationsvermittlung ist es von besonderem Interesse, die Informationen eines bestimmten Bereichs in einer Datenbank zu kumulieren. Natürlich wachsen diese themenbezogenen Datenbanken auch stetig an, das Volumen bleibt jedoch bei einigen Millionen Dokumenten noch »überschaubar«. Im Gegensatz dazu steht das World Wide Web. Zwar kann seine Größe nicht genau ermittelt werden, Schätzungen gehen jedoch inklusive der Invisible-Web-Inhalte von etwa zwölf Milliarden Dokumenten bis 550 Milliarden Dokumenten aus (vgl. Bergman 2001). Der dritte wichtige Punkt, der Information Retrieval in Datenbanken von dem im Internet unterscheidet, ist die Frage nach der Zuverlässigkeit der angebotenen Informationen. Während bei Datenbanken die Auswahl der aufgenommenen Informationen oft noch durch einen menschlichen Indexierer erfolgt, nehmen Suchmaschinen potenziell alle von ihnen aufgefundenen Dokumente in ihren Datenbestand auf.
-
Smith, A.G.: Search features of digital libraries (2000)
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- Abstract
- Traditional on-line search services such as Dialog, DataStar and Lexis provide a wide range of search features (boolean and proximity operators, truncation, etc). This paper discusses the use of these features for effective searching, and argues that these features are required, regardless of advances in search engine technology. The literature on on-line searching is reviewed, identifying features that searchers find desirable for effective searching. A selective survey of current digital libraries available on the Web was undertaken, identifying which search features are present. The survey indicates that current digital libraries do not implement a wide range of search features. For instance: under half of the examples included controlled vocabulary, under half had proximity searching, only one enabled browsing of term indexes, and none of the digital libraries enable searchers to refine an initial search. Suggestions are made for enhancing the search effectiveness of digital libraries; for instance, by providing a full range of search operators, enabling browsing of search terms, enhancement of records with controlled vocabulary, enabling the refining of initial searches, etc.
- Content
- Enthält eine Zusammenstellung der Werkzeuge und Hilfsmittel des Information Retrieval
- Source
- Information Research. 5(2000) no.3, April 2000
-
Stacey, Alison; Stacey, Adrian: Effective information retrieval from the Internet : an advanced user's guide (2004)
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- Abstract
- This book provides practical strategies which enable the advanced web user to locate information effectively and to form a precise evaluation of the accuracy of that information. Although the book provides a brief but thorough review of the technologies which are currently available for these purposes, most of the book concerns practical `future-proof' techniques which are independent of changes in the tools available. For example, the book covers: how to retrieve salient information quickly; how to remove or compensate for bias; and tuition of novice Internet users.
- Content
- Key Features - Importantly, the book enables readers to develop strategies which will continue to be useful despite the rapidly-evolving state of the Internet and Internet technologies - it is not about technological `tricks'. - Enables readers to be aware of and compensate for bias and errors which are ubiquitous an the Internet. - Provides contemporary information an the deficiencies in web skills of novice users as well as practical techniques for teaching such users. The Authors Dr Alison Stacey works at the Learning Resource Centre, Cambridge Regional College. Dr Adrian Stacey, formerly based at Cambridge University, is a software programmer. Readership The book is aimed at a wide range of librarians and other information professionals who need to retrieve information from the Internet efficiently, to evaluate their confidence in the information they retrieve and/or to train others to use the Internet. It is primarily aimed at intermediate to advanced users of the Internet. Contents Fundamentals of information retrieval from the Internet - why learn web searching technique; types of information requests; patterns for information retrieval; leveraging the technology: Search term choice: pinpointing information an the web - why choose queries carefully; making search terms work together; how to pick search terms; finding the 'unfindable': Blas an the Internet - importance of bias; sources of bias; usergenerated bias: selecting information with which you already agree; assessing and compensating for bias; case studies: Query reformulation and longer term strategies - how to interact with your search engine; foraging for information; long term information retrieval: using the Internet to find trends; automating searches: how to make your machine do your work: Assessing the quality of results- how to assess and ensure quality: The novice user and teaching internet skills - novice users and their problems with the web; case study: research in a college library; interpreting 'second hand' web information.
-
Heery, R.: Information gateways : collaboration and content (2000)
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- Abstract
- Information subject gateways provide targeted discovery services for their users, giving access to Web resources selected according to quality and subject coverage criteria. Information gateways recognise that they must collaborate on a wide range of issues relating to content to ensure continued success. This report is informed by discussion of content activities at the 1999 Imesh Workshop. The author considers the implications for subject based gateways of co-operation regarding coverage policy, creation of metadata, and provision of searching and browsing across services. Other possibilities for co-operation include working more closely with information providers, and diclosure of information in joint metadata registries
- Date
- 22. 6.2002 19:38:54
- Source
- Online information review. 24(2000) no.1, S.40-45
- Theme
- Information Gateway
-
Spink, A.; Jansen, B.J.; Blakely, C.; Koshman, S.: ¬A study of results overlap and uniqueness among major Web search engines (2006)
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- Abstract
- The performance and capabilities of Web search engines is an important and significant area of research. Millions of people world wide use Web search engines very day. This paper reports the results of a major study examining the overlap among results retrieved by multiple Web search engines for a large set of more than 10,000 queries. Previous smaller studies have discussed a lack of overlap in results returned by Web search engines for the same queries. The goal of the current study was to conduct a large-scale study to measure the overlap of search results on the first result page (both non-sponsored and sponsored) across the four most popular Web search engines, at specific points in time using a large number of queries. The Web search engines included in the study were MSN Search, Google, Yahoo! and Ask Jeeves. Our study then compares these results with the first page results retrieved for the same queries by the metasearch engine Dogpile.com. Two sets of randomly selected user-entered queries, one set was 10,316 queries and the other 12,570 queries, from Infospace's Dogpile.com search engine (the first set was from Dogpile, the second was from across the Infospace Network of search properties were submitted to the four single Web search engines). Findings show that the percent of total results unique to only one of the four Web search engines was 84.9%, shared by two of the three Web search engines was 11.4%, shared by three of the Web search engines was 2.6%, and shared by all four Web search engines was 1.1%. This small degree of overlap shows the significant difference in the way major Web search engines retrieve and rank results in response to given queries. Results point to the value of metasearch engines in Web retrieval to overcome the biases of individual search engines.
- Source
- Information processing and management. 42(2006) no.5, S.1379-1391
-
Hübener, M.: Suchmaschinenoptimierung kompakt : anwendungsorientierte Techniken für die Praxis (2009)
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- Content
- Einleitung - Grundlagen - Die Funktionsweise der Suchmaschinen - Die Besonderheiten der Suchmaschine Google - Multimedia im World Wide Web - Die Strukturierung einer Internetpräsenz - Der 9-Punkte-Optimierungsplan - Die Anwendung des Optimierungsplans am Beispiel www.still.de - Zusammenfassung
- RSWK
- Suchmaschine / Information-Retrieval-System / Optimierung
- Subject
- Suchmaschine / Information-Retrieval-System / Optimierung
