-
Aksoy, C.; Can, F.; Kocberber, S.: Novelty detection for topic tracking (2012)
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- Abstract
- Multisource web news portals provide various advantages such as richness in news content and an opportunity to follow developments from different perspectives. However, in such environments, news variety and quantity can have an overwhelming effect. New-event detection and topic-tracking studies address this problem. They examine news streams and organize stories according to their events; however, several tracking stories of an event/topic may contain no new information (i.e., no novelty). We study the novelty detection (ND) problem on the tracking news of a particular topic. For this purpose, we build a Turkish ND test collection called BilNov-2005 and propose the usage of three ND methods: a cosine-similarity (CS)-based method, a language-model (LM)-based method, and a cover-coefficient (CC)-based method. For the LM-based ND method, we show that a simpler smoothing approach, Dirichlet smoothing, can have similar performance to a more complex smoothing approach, Shrinkage smoothing. We introduce a baseline that shows the performance of a system with random novelty decisions. In addition, a category-based threshold learning method is used for the first time in ND literature. The experimental results show that the LM-based ND method significantly outperforms the CS- and CC-based methods, and category-based threshold learning achieves promising results when compared to general threshold learning.
-
Hagel, F. von: Kalliope-Portal : Fachportal für Autographen und Nachlässe (2004)
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- Source
- AKMB-news. 10(2004) H.1, S.31-34
-
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
-
Lim, E.: Southeast Asian subject gateways : an examination of their classification practices (2000)
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- Date
- 22. 6.2002 19:42:47
-
Meißner, B.: ViFaArt: eine virtuelle Fachbibliothek zur Gegenwartskunst (2004)
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- Source
- AKMB-news. 10(2004) H.1, S.37-41
-
Price, A.: Five new Danish subject gateways under development (2000)
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- Date
- 22. 6.2002 19:41:31
-
Gardner, T.; Iannella, R.: Architecture and software solutions (2000)
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- Date
- 22. 6.2002 19:38:24
-
Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000)
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- Date
- 22. 6.2002 19:39:23
-
Campbell, D.: Australian subject gateways : political and strategic issues (2000)
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- Date
- 22. 6.2002 19:41:16
-
Dempsey, L.: ¬The subject gateway : experiences and issues based on the emergence of the Resource Discovery Network (2000)
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- Date
- 22. 6.2002 19:36:13
-
Kaizik, A.; Gödert, W.; Milanesi, C.: Erfahrungen und Ergebnisse aus der Evaluierung des EU-Projektes EULER im Rahmen des an der FH Köln angesiedelten Projektes EJECT (Evaluation von Subject Gateways des World Wide Web (2001)
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- Date
- 22. 6.2002 19:42:22
-
Heery, R.: Information gateways : collaboration and content (2000)
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- Date
- 22. 6.2002 19:38:54
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Price, A.: NOVAGate : a Nordic gateway to electronic resources in the forestry, veterinary and agricultural sciences (2000)
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- Date
- 22. 6.2002 19:41:00
-
Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000)
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- Date
- 22. 6.2002 19:37:55
-
Mitchell, S.; Mason, J.; Pender, L.: Enabling technologies and service designs for collaborative Internet collection building (2004)
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- Source
- Library hi tech. 22(2004) no.3, S.295-306
-
Schaer, P.: Integration von Open-Access-Repositorien in Fachportale (2010)
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- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
-
Cervone, F.: Library portals and gateways (2009)
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- Date
- 27. 8.2011 14:22:27
-
Fischer, T.; Neuroth, H.: SSG-FI - special subject gateways to high quality Internet resources for scientific users (2000)
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- Date
- 22. 6.2002 19:40:42
-
Neuroth, H.; Lepschy, P.: ¬Das EU-Projekt Renardus (2001)
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- Date
- 22. 6.2002 19:32:15
-
Meiert, M.: Elektronische Publikationen an Hochschulen : Modellierung des elektronischen Publikationsprozesses am Beispiel der Universität Hildesheim (2006)
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- Date
- 1. 9.2006 13:22:15
