-
Wiley, D.L.: Beyond information retrieval : ways to provide content in context (1998)
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- Abstract
- The days of the traditional abstracting and indexing services are waning, as abstracts and bibliographic data become commodities. However, there are tremedous opportunities for those organizations willing to look beyond the status quo to the new possibilities enabled by the latest wave of advanced technologies. Those who own content need to focus on the delivery mechanisms and new markets that technology can provide. Features like automatic extraction of key concepts or names, collaborative filtering to help with trend analysis, and visualization techniques can take information past the retrieval stage and into the management area
- Source
- Database. 21(1998) no.4, S.18-22
-
Wheatley, A.; Armstrong, C.J.: Metadata, recall, and abstracts : can abstracts ever be reliable indicators of document value? (1997)
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- Abstract
- Abstracts from 7 Internet subject trees (Euroferret, Excite, Infoseek, Lycos Top 5%, Magellan, WebCrawler, Yahoo!), 5 Internet subject gateways (ADAM, EEVL, NetFirst, OMNI, SOSIG), and 3 online databases (ERIC, ISI, LISA) were examined for their subject content, treatment of various enriching features, physical properties such as overall length, anf their readability. Considerable differences were measured, and consistent similarities among abstracts from each type of source were demonstrated. Internet subject tree abstracts were generally the shortest, and online database abstracts the longest. Subject tree and online database abstracts were the most informative, but the level of coverage of document features such as tables, bibliographies, and geographical constraints were disappointingly poor. On balance, the Internet gateways appeared to be providing the most satisfactory abstracts. The authors discuss the continuing role in networked information retrieval of abstracts and their functional analoques such as metadata
-
Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents
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- Content
- Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
-
White, R.W.; Jose, J.M.; Ruthven, I.: ¬A task-oriented study on the influencing effects of query-biased summarisation in web searching (2003)
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- Abstract
- The aim of the work described in this paper is to evaluate the influencing effects of query-biased summaries in web searching. For this purpose, a summarisation system has been developed, and a summary tailored to the user's query is generated automatically for each document retrieved. The system aims to provide both a better means of assessing document relevance than titles or abstracts typical of many web search result lists. Through visiting each result page at retrieval-time, the system provides the user with an idea of the current page content and thus deals with the dynamic nature of the web. To examine the effectiveness of this approach, a task-oriented, comparative evaluation between four different web retrieval systems was performed; two that use query-biased summarisation, and two that use the standard ranked titles/abstracts approach. The results from the evaluation indicate that query-biased summarisation techniques appear to be more useful and effective in helping users gauge document relevance than the traditional ranked titles/abstracts approach. The same methodology was used to compare the effectiveness of two of the web's major search engines; AltaVista and Google.
-
Fuld, L.M.: Will today's databases survive : a question of value (1996)
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- Abstract
- Discusses the evolution of online databases during the 1990s considering the effect of cheap information accessed through the Internet. InfoSeek includes Associated Press Online, Reuters Business Report, Commerce Business Daily and Cambridge Scientific Abstracts for a basic 9.95 dollars per month. PR Newswire offers an automated faxback system of press releases at no charge to the caller. CD-ROM directories are making online access almost obsolete. With greater numbers of sophisticated electronic competitors, survival can only be achieved through high quality access, accuracy and added value
-
Lorigo, L.; Pan, B.; Hembrooke, H.; Joachims, T.; Granka, L.; Gay, G.: ¬The influence of task and gender on search and evaluation behavior using Google (2006)
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- Abstract
- To improve search engine effectiveness, we have observed an increased interest in gathering additional feedback about users' information needs that goes beyond the queries they type in. Adaptive search engines use explicit and implicit feedback indicators to model users or search tasks. In order to create appropriate models, it is essential to understand how users interact with search engines, including the determining factors of their actions. Using eye tracking, we extend this understanding by analyzing the sequences and patterns with which users evaluate query result returned to them when using Google. We find that the query result abstracts are viewed in the order of their ranking in only about one fifth of the cases, and only an average of about three abstracts per result page are viewed at all. We also compare search behavior variability with respect to different classes of users and different classes of search tasks to reveal whether user models or task models may be greater predictors of behavior. We discover that gender and task significantly influence different kinds of search behaviors discussed here. The results are suggestive of improvements to query-based search interface designs with respect to both their use of space and workflow.
-
Blake, P.: Searching out and assessing Web sites (1996)
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- Abstract
- Describes 4 search engines for the Internet: infoMarket Search; Yahoo and OpenText; Lycos Spider; and WebCompass. InfoMarket Search retrieves data from Web pages and information providers such as Disclosure, Information Access Company and Cambridge Scientific Abstracts. It is able to search millions of Web pages in under five seconds. Automated 'crawlers' index the complete text of Web documents. Yahoo enables users to search for specific words and phrases and conduct multilevel Boolean and weighted searches. Lycos spider offers support for HotJava and indexes 91% of the Web. WebCompass polls multiple search engines such as Lycos and InfoSeek for relevant Web pages. A personalized index of topics may be built and retrieved data stored in a format based on Microsoft Access 2.0
-
Search tools (1997)
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- Abstract
- Offers brief accounts of Internet search tools. Covers the Lycos revamp; the new navigation service produced jointly by Excite and Netscape, delivering a language specific, locally relevant Web guide for Japan, Germany, France, the UK and Australia; InfoWatcher, a combination offline browser, search engine and push product from Carvelle Inc., USA; Alexa by Alexa Internet and WBI from IBM which are free and provide users with information on how others have used the Web sites which they are visiting; and Concept Explorer from Knowledge Discovery Systems, Inc., California which performs data mining from the Web, Usenet groups, MEDLINE and the US Patent and Trademark Office patent abstracts
-
Publishers go head-to-head over search tools : Elsevier's Scopus (2004)
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- Content
- "Will there ever be a science equivalent of Google? Two of the world's biggest science publishing and information firms seem to think that there will. They are about to compete head-to-head to create the most popular tool for searching the scientific literature. Elsevier, the Amsterdam-based publisher of more than 1,800 journals, has announced that this autumn it will launch Scopus, an online search engine covering abstracts and references from 14,000 scientific journals. Scopus will arrive as a direct competitor for the established Web of Science, owned by Thomson ISI of Philadelphia, the scientific information specialist. "Scopus will definitely be a threat to ISI," says one science publishing expert, who asked not to be named. "But ISI will not just let this happen. There will be some kind of arms race in terms of adding new features." Many researchers are already wedded to subject-specific databases of scientific information, such as PubMed, for biomedical research. But Web of Science is currently the only service to cover the full spectrum of scientific disciplines and publications. It can also generate the citation statistics that are sometimes used to measure the quality ofjournals and individual papers. ISI, which is widely used by libraries worldwide, may be hard to displace. It covers fewer than 9,000 journals, but it has been available in its present form since 1997 and includes a 60-year archive of papers. Thomson ISI says it will extend this to 105 years by the end of 2005. The company also owns the only extensive database an patent abstracts.
Elsevier cannot hope to match this coverage in the short term. The company has been able to draw an its experience of running biomedical and pharmaceutical databases, and developers began compiling a multidisciplinary index two years ago. Even so, when it launches, Scopus will index only five years of references far some journals, rising to ten years during 2005. Data an abstracts will go back further, in some cases to the mid-1960s. Because Scopus has been built from scratch, Elsevier has been able to work with librarians to develop an alternative to the Web of Science interface, which has been criticized by some users. "Users are very happy with Scopus," says Steven Gheyselinck, a librarian at the University of Lausanne in Switzerland who has been testing it. Although Scopus and Web of Science are the only products aiming to cover all of science, other search engines are also under development. The Google of science could end up being Google itself the company has collaborated with nine publishers, including Nature Publishing Group, to create an engine called CrossRef Search. This service, a pilot of which appeared last month, allows users to search digital versions of all papers held by the publishers involved and returns links to articles an their websites. Unlike Web of Science and Scopus, which scan through the titles and abstracts of articles, CrossRef Search also searches the full text of papers. Many of the other 300 or so members of CrossRef - a publishers' collaboration established to allow easier linking between citations - are likely to join the service if the pilot is successful."
-
Großjohann, K.: Gathering-, Harvesting-, Suchmaschinen (1996)
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- Date
- 7. 2.1996 22:38:41
- Pages
- 22 S
-
Höfer, W.: Detektive im Web (1999)
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- Date
- 22. 8.1999 20:22:06
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Rensman, J.: Blick ins Getriebe (1999)
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- Date
- 22. 8.1999 21:22:59
-
Stock, M.; Stock, W.G.: Recherchieren im Internet (2004)
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- Date
- 27.11.2005 18:04:22
-
Google(TM) Scholar erleichtert institutionellen Zugang (2005)
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- Content
- "Seit Juni 2005 ermöglicht EBSCOs Linkresolver Link Source(TM) allen A-to-Z-Kunden ihre Online-Ressourcen über die Suchmaschine Google Scholar anzusteuern. So sind in akademischen Bibliotheken, die Google Scholar nutzen, Links auf Ebene der einzelnen Artikel für die laufenden Abonnements der Einrichtung eingerichtet. Diese Links führen zum Link Source Menu der Bibliothek, von wo aus der Nutzer direkten Zugriff auf den gewünschten Artikel hat. Der elektronische Volltext ist somit nur ein oder zwei Mausklicks von der Suchergebnisliste in Google Scholar entfernt. Durch die Kombiantion von Google mit Google(TM) Scholars Indexierung von Fachaufsätzen, Dissertationen, Büchern, Vorabdrucken, Abstracts und technischen Berichten erhalten Bibliotheken Gelegenheit, ihre Sammlungen besser nutzbar zu machen. EBSCO bietet diesen Service allen A-to-ZKunden, die einen OpenURL Linkresolver eines beliebigen Anbieters nutzen, ohne zusätzliche Kosten an."
-
MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000)
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- Date
- 22. 6.2002 19:40:22
-
Vidmar, D.J.: Darwin on the Web : the evolution of search tools (1999)
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- Source
- Computers in libraries. 19(1999) no.5, S.22-28
-
Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000)
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- Date
- 25. 8.2005 17:42:22
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ap: Suchmaschinen in neuem Gewand : Metaspinner kennt 600 Millionen Seiten (1999)
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- Date
- 3. 5.1997 8:44:22
-
Dunning, A.: Do we still need search engines? (1999)
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- Source
- Ariadne. 1999, no.22
-
Bawden, D.: Google and the universe of knowledge (2008)
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- Date
- 7. 6.2008 16:22:20
