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FEUP at TREC 2009 Blog Track : temporal evidence in the faceted blog distillati...

This paper describes the participation of FEUP, from the University of Porto, in the TREC 2009 Blog Track. FEUP participated in the faceted blog distillation task with work focused on the use of temporal features available in the new TREC Blogs08 collection. The approach presented in this paper uses the temporal information available in most individual posts to amplify (or reduce) each post’s score. Blog ...

Using temporal evidence in blog search

In this paper we present a study on the relevance of web documents over time and the use of temporal evidence in blog search tasks. Time is an intrinsic property of social media, most notably in blogs where each post is typically attached with a timestamp representing its publish date. However, due to the challenges in obtaining document collections containing temporal information, research on this field has be...

FEUP at TREC 2008 Blog Track : using temporal evidence for ranking and feed dis...

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 &#64257...

Use of temporal expressions in web searches

While trying to understand and characterize users’ behavior online, the temporal dimension has received little attention by the research community. This exploratory study uses two collections of web search queries to investigate the use of temporal information needs. Using state-of-the-art information extraction techniques we identify temporal expressions in these queries. We find that temporal expression...

WikiChanges : exposing Wikipedia revision activity

Multimedia in cultural heritage collections : a model and applications

Automatic Program Reports

To profit from the data collected by the SIGARRA academic IS, a systematic set of graphs and statistics has been added to it and are available on-line. This analytic information can be automatically included in a flexible yearly report for each program as well as in a synthesis report for the whole school. Some difficulties in the interpretation of some graphs led to the definition of new key indicators and the...