Altıngövde, İsmail ŞengörÖzcan, RıfatÇetintaş, SüleymanYılmaz, HakanUlusoy, Özgür2016-02-082016-02-082007-11http://hdl.handle.net/11693/26924Conference name: CIKM '07 Proceedings of the sixteenth ACM conference on Conference on information and knowledge managementDate of Conference: 06 - 10 November, 2007We describe the architecture of an automatic domain-specific Web portal construction system. The system has three major components: i) a focused crawler that collects the domain-specific pages on the Web, ii) an information extraction engine that extracts useful fields from these Web pages, and iii) a query engine that allows both typical keyword based queries on the pages and advanced queries on the extracted data fields. We present a prototype system that works for the course homepages domain on the Web. A user study with the prototype system shows that our approach produces high quality results and achieves better precision figures than the typical keyword based search. Copyright 2007 ACM.EnglishFocused crawlingInformation extractionQueryingConstruction systemsData fieldsDomain specificsFocused crawlersHigh qualitiesHome-pagesInformation extractionKeyword-based searchesPrototype systemsQuery enginesUser studiesWeb pagesWeb-portalsInformation analysisKnowledge managementPortalsWorld Wide WebConference Paper10.1145/1321440.1321558