Web Science, Web Analytics and Web Archives - Humans in the Loop

by prof. Wolfgang Nejdl, University of Hannover

April 29th 2013 @ 14:00, in Garda

In this invited talk prof. Wolfgang Nejdl will present his work about

Web Science, Web Analytics and Web Archives - Humans in the Loop


The Web stands for a huge and diverse infrastructure with an incredible amount of data. But what sets it apart from other infrastructures are its users: billions of users with very diverse backgrounds and goals who are shaping the Web. I will start by giving a short overview over Web Science topics at L3S, and talk about how human goals, thinking and actions influence and shape the Web. Humans introduce diversity into the Web, and work together creating amazing amounts of information, annotations and data sets. These different aspects of diversity create problems for our algorithms but also opportunities for coping with them, and I will illustrate this with two examples for the task of entity resolution / deduplication. Last, I will discuss some current and future work at L3S related to Web Archives, building on projects currently running at L3S. Search and analysis in Web Archives are different from their counterparts on the Web and again involving humans is a crucial ingredient in coming up with good solutions.


Prof. Nejdl heads the L3S Research Center as well as the Distributed Systems Institute / Knowledge Based Systems.

Prof. Dr. Wolfgang Nejdl (born 1960) has been full professor of computer science at the University of Hannover since 1995. He received his M.Sc. (1984) and Ph.D. degree (1988) at the Technical University of Vienna, was assistant professor in Vienna from 1988 to 1992, and associate professor at the RWTH Aachen from 1992 to 1995. He worked as visiting researcher / professor at Xerox PARC, Stanford University, University of Illinois at Urbana-Champaign, EPFL Lausanne, and at PUC Rio.

Prof. Nejdl heads the L3S Research Center, www.L3S.de, as well as the Distributed Systems Institute / Knowledge Based Systems, and does research in the areas of search and information retrieval, information systems, data mining and recommender systems, semantic web technologies and digital libraries. Recent projects in the L3S context include the EU projects ARCOMEM and ForgetIT, investigating Web and organization archive management and advanced search in such archives, the EU project CUBRIK, developing algorithms and systems for human-enhanced time-aware multimedia search, and Qualimaster, focusing on real time data stream analytics. He has just started an ERC Advanced Grant, ALEXANDRIA, to work on foundations for temporal retrieval, exploration and analytics in Web archives.

Wolfgang Nejdl published more than 330 scientific articles, as listed at DBLP, and has been program chair, program committee and editorial board member of numerous international conferences and journals, most recently including the role of PC chair for WSDM'11 in HongKong, WebSci'12 in Evanston, US, CIKM'13 in San Francisco, and for the WWW'13 Social networks and Graph Analysis Track in Rio De Janeiro.