Library Technicians at Drexel

Drexel at TREC 2007: Question Answering

The TREC Question Answering Track presented several distinct challenges to participants in 2007. Participants were asked to create a system which discovers the answers to factoid and list questions about people, entities, organizations and events, given both blog and newswire text data sources. In addition, participants were asked to expose interesting information nuggets which exist in the dat...

Computers in Libraries: An Introduction for Library Technicians

Drexel at TREC 2014 Federated Web Search Track

This paper reports our participation in the Federated Web Search Track in TREC 2014. We submitted 21 runs for all the three tasks: Vertical Selection (7), Resource Selection (7) and Results Merging (7). Our main purpose is to test several established resource selection methods on the new realistic FedWeb test collections. We evaluated 7 well known resource selection methods for the vertical sel...

Drexel University Libraries

We are investigating the nature of knowledge building in virtual communities. In particular, we are exploring the possibility that a small group of students collaborating online on math problems can construct shared group knowledge that exceeds the knowledge of the individual group members. That is, can people working and learning as a community accomplish tasks that none of them would have bee...

Drexel Analysis Seminar

Title: Weighted random staircase tableaux, asymmetric exclusion process, and generalized Eulerian polynomials. Abstract: Staircase tableaux are a relatively new combinatorial structure introduced by Sylvie Corteel and Lauren Williams in the context of the asymmetric exclusion process (ASEP) and Askey–Wilson polynomials. Since then, their purely combinatorial properties have gained considerable ...