International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 180 - Number 38 |
Year of Publication: 2018 |
Authors: Mohammad Ubaidullah Bokhari, Mohd. Kashif Adhami |
10.5120/ijca2018917010 |
Mohammad Ubaidullah Bokhari, Mohd. Kashif Adhami . Retrieval Effectiveness of News Search Engines: A Theoretical Framework. International Journal of Computer Applications. 180, 38 ( May 2018), 17-23. DOI=10.5120/ijca2018917010
News search has now become an important internet activity as users are switching from hard copies to online news reading. Many modern news search engines like: Google News or Bing News are available for this purpose. We propose a theoretical framework for evaluating the retrieval effectiveness of news search systems. The framework exploits supervised machine learning approach for evaluating therefore we performed retrieval effectiveness tests on a small data set consisting relevancy features- Tfidf and Latent Semantic Indexing (LSI) as well as freshness feature-publication time, extracted from 1120 query-document pairs collected from search results of Google News, to evaluate the performance of various machine learned learning to rank algorithms on NDCG and ERR metric at different cut-offs. The motive behind this work is to conduct large-scale retrieval effectiveness studies for news search engines.