A retrieval model incorporating hypertext links
HYPERTEXT '89 Proceedings of the second annual ACM conference on Hypertext
Measuring retrieval effectiveness based on user preference of documents
Journal of the American Society for Information Science
Information storage and retrieval
Information storage and retrieval
Finding information on the World Wide Web: the retrieval effectiveness of search engines
Information Processing and Management: an International Journal
Authoritative sources in a hyperlinked environment
Proceedings of the ninth annual ACM-SIAM symposium on Discrete algorithms
First 20 precision among World Wide Web search services (search engines)
Journal of the American Society for Information Science
Analysis of a very large web search engine query log
ACM SIGIR Forum
Information retrieval on the web
ACM Computing Surveys (CSUR)
Retrieval effectiveness on the web
Information Processing and Management: an International Journal
Information Retrieval on the World Wide Web
IEEE Internet Computing
Application of Metadata Concepts to Discovery of Internet Resources
ADVIS '00 Proceedings of the First International Conference on Advances in Information Systems
Structural Abstractions of Hypertext Documents for Web-Based Retrieval
DEXA '98 Proceedings of the 9th International Workshop on Database and Expert Systems Applications
Turkish information retrieval: past changes future
ADVIS'06 Proceedings of the 4th international conference on Advances in Information Systems
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This is an investigation of information retrieval performance of Turkish search engines with respect to precision, normalized recall, coverage and novelty ratios. We defined seventeen query topics for Arabul, Arama, Netbul and Superonline. These queries were carefully selected to assess the capability of a search engine for handling broad or narrow topic subjects, exclusion of particular information, identifying and indexing Turkish characters, retrieval of hub/authoritative pages, stemming of Turkish words, correct interpretation of Boolean operators. We classified each document in a retrieval output as being "relevant" or "nonrelevant" to calculate precision and normalized recall ratios at various cut-off points for each pair of query topic and search engine. We found the coverage and novelty ratios for each search engine. We also tested how search engines handle meta-tags and dead links. Arama appears to be the best Turkish search engine in terms of average precision and normalized recall ratios, and the coverage of Turkish sites. Turkish characters (and stemming as well) still cause bottlenecks for Turkish search engines. Superonline and Netbul make use of the indexing information in metatag fields to improve retrieval results.