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Svenska nyhetssöktjänster på webben: En utvärdering av Yahoo! Nyheter och Sesams återvinningseffektivitet
University of Borås, Swedish School of Library and Information Science.
2007 (Swedish)Independent thesis Advanced level (degree of Master (One Year))Student thesisAlternative title
Swedish news search engines on the Web : An evaluation of Yahoo! News and Sesam’s retrieval effectiveness (English)
Abstract [en]

The aim of this Master’s thesis is to examine the retrieval performance of two search engines, Yahoo! News and Sesam, specialized on indexing news articles in Swedish. Thirty search questions were used in this study, divided into three different categories: domestic news, amusement and sport. Precision has been calculated both for the 30 search questions as a total and for the three categories as well. Precision was calculated at every DCV-level and then divided with the number of search questions used, in an attempt to reach an average measure. An analysis was also used were precision was calculated over all the DCV-levels for each question in attempt to see how the search engines perform for a given search question and a given search engine. The relevance of the top 10 retrieved documents was judged using a binary scale. The result of the study shows little difference in precision between the two search engines. Yahoo! News performs slightly better than Sesam in most cases. The results show much variation between the search engines regarding how they perform per given search question. Much of the underlying techniques used by the search engines is not know for the public why the methods used in the study, for example the terms chosen as search terms, choice of highest DCV-level et cetera, and how these different choices made may had an impact on the result in the study is discussed rather than underlying technical functions.

Place, publisher, year, edition, pages
University of Borås/Swedish School of Library and Information Science (SSLIS) , 2007.
Series
Magisteruppsats i biblioteks- och informationsvetenskap vid institutionen Biblioteks- och informationsvetenskap, ISSN 1654-0247 ; 2007:120
Keywords [en]
WWW, specialiserade söktjänster, återvinningseffektivitet
Keywords [sv]
söktjänster, nyheter, nyhetsartiklar, nyhetssöktjänster
National Category
Social Sciences
Identifiers
URN: urn:nbn:se:hb:diva-18652Local ID: 2320/2724OAI: oai:DiVA.org:hb-18652DiVA, id: diva2:1310570
Note
Uppsatsnivå: DAvailable from: 2019-04-30 Created: 2019-04-30

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6565dbdb330a30fc3d8da7b449cb152ce13e380b57a3ccfc56beffa5efcab4fd6626bab944394198b569dd7150276b8287f9c72aa781dbdae6b32217ab7c1b5f
Type fulltextMimetype application/pdf

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Swedish School of Library and Information Science
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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf