FEUP at TREC 2008 blog track: Using temporal evidence for ranking and feed distillation

• Type: Article in International Conference Proceedings Book
• Date: 2008

Authors

Sérgio Nunes (Author) FEUP; Cristina Ribeiro (Author) FEUP; Gabriel David (Author) FEUP

Conference proceedings International

Title: NIST Special Publication

17th Text REtrieval Conference, TREC 2008

Gaithersburg, MD, 18 November 2008 through 21 November 2008

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-008-97F

Abstract (EN): This paper presents the participation of FEUP, from University of Porto, in the TREC 2008 Blog Track. FEUP participated in two tasks, the baseline adhoc retrieval task and the blog finding distillation task. Our approach was focused on the use of the temporal information available in the TREC Blog06 collection. For the baseline adhoc retrieval task a simple temporal sort was evaluated. In the blog finding distillation task we tested three alternative scoring functions based on temporal evidence. All features were combined with a BM25 baseline run using a standard rank aggregation approach. We observed small, but statistically significant, improvements in several evaluation measures when temporal information is used.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6