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Li Chen

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Publications associées (28)

Graph Chatbot

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Evaluating product search and recommender systems for E-commerce environments

Pearl Pu Faltings, Li Chen, Pratyush Kumar

Online systems that help users select the most preferential item from a large electronic catalog are known as product search and recommender systems. Evaluation of various proposed technologies is essential for further development in this area. This paper ...

Springer US2008

Trust-inspiring explanation interfaces for recommender systems

Pearl Pu Faltings, Li Chen

A recommender system's ability to establish trust with users and convince them of its recommendations, such as which camera or PC to purchase, is a crucial design factor especially for e-commerce environments. This observation led us to build a trust model ...

Elsevier, Amsterdam, 1000 AE, Netherlands2007

Hybrid critiquing-based recommender systems

Pearl Pu Faltings, Li Chen

We propose a novel critiquing-based recommender interface, the hybrid critiquing interface that integrates the user self-motivated critiquing facility to compensate for the limitations of system-proposed critiques. The results from our user study show that ...

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

Credit Derivatives in an Affine Framework

Damir Filipovic, Li Chen

An efficient method for valuing credit derivatives based on three entities is developed in an affine framework. This includes interdependence of market and credit risk, joint credit migration and counterparty default risk of three forms. As an application ...

2007

Evaluating critiquing-based recommencler agents

Pearl Pu Faltings, Li Chen

We describe a user study evaluating two critiquing-based recommender agents based on three criteria: decision accuracy, decision effort, and user confidence. Results show that user-motivated critiques were more frequently applied and the example critiquing ...

American Association for Artificial Intelligence, Menlo Park, CA 94025-3496, United States2006

Integrating tradeoff support in product search tools for E-commerce sites

Pearl Pu Faltings, Li Chen

In a previously reported user study, we found that users were able to perform decision tradeoff tasks more efficiently and commit considerably fewer errors with the example critiquing interface than with the ranked list. We concluded that example-based sea ...

Association for Computing Machinery, New York, NY 10036-5701, United States2005

Survey of Preference Elicitation Methods

Pearl Pu Faltings, Li Chen

As people increasingly rely on interactive decision support systems to choose products and make decisions, building effective interfaces for these systems becomes more and more challenging due to the explosion of on-line information, the initial incomplete ...

2004

A Mixed Approach to Modeling Default Risk

Damir Filipovic, Li Chen

Structural and reduced-form models are two well-established approaches to modelling a firm’s default risk. Here, Li Chen, Damir Filipovic and Vincent Poor develop a new default risk modelling strategy based on combining these two frameworks in order to ove ...

Risk2004