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An Evaluation of Diversification Techniques

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User Interface Design in a Just-in-time Retrieval System for Meetings

Andrei Popescu-Belis, Majid Yazdani

The Automatic Content Linking Device (ACLD) is a just-in-time multimedia retrieval system that monitors and supports the conversation among a small group of people within a meeting. The ACLD retrieves from a repository, at regular intervals, information th ...

Idiap2009

Design and evaluation issues for user-centric online product search

Jiyong Zhang

Nowadays more and more people are looking for products online, and a massive amount of products are being sold through e-commerce systems. It is crucial to develop effective online product search tools to assist users to find their desired products and to ...

EPFL2008

User decision improvement and trust building in product recommender systems

Li Chen

As online stores are offering an almost unlimited shelf space, users must increasingly rely on product search and recommender systems to find their most preferred products and decide which item is the truly best one to buy. However, much research work has ...

EPFL2008

A Visual Interface for Critiquing-based Recommender Systems

Pearl Pu Faltings, Jiyong Zhang, Nicolas Jones

Critiquing-based recommender systems provide an efficient way for users to navigate through complex product spaces even if they are not familiar with the domain details in e-commerce environments. While recent research has mainly concentrated on methods fo ...

Acm Order Department, P O Box 64145, Baltimore, Md 21264 Usa2008

A comparison of two compound critiquing systems

Pearl Pu Faltings, Jiyong Zhang

Compound critiques allow users to simultaneously express directional preferences over several product attributes. Presenting the user with compound critiques is not a new idea. The original Find-Me Systems (e.g., Car Navigator) showed static compound criti ...

Association for Computing Machinery, New York, NY 10036-5701, United States2007

Minimizing Generalized Buchi Automata

Sudeep Juvekar

We consider the problem of minimization of generalized Buchi automata. We show how to extend fair simulation and delayed simulation to the case where the Buchi automaton has multiple acceptance conditions. For fair simulation, we show how to efficiently co ...

2005

Thurston's weak metric on the Teichmüller space of the torus

Marc Troyanov

We define and study a natural weak metric on the Teichmüller space of the torus. A similar metric has been defined by W. Thurston on the Teichmüller space of higher genus surfaces and our definition is motivated by Thurston's definition. However, we shall ...

2005

Improved algorithms for topic distillation in a hyperlinked environment

Monika Henzinger

This paper addresses the problem of topic distillation on the World Wide Web, namely, given a typical user query to find quality documents related to the query topic. Connectivity analysis has been shown to be useful in identifying high quality pages withi ...

ACM1998