Trinity College Dublin, Department of Computer Science
Waszkiewicz, Pawel; Cunningham, Pádraig. 'Case-based User Profiling in a Personal Travel Assistant'. - Dublin, Trinity College Dublin, Department of Computer Science, TCD-CS-1999-12, 1999, pp3
Computer Science Technical Report TCD-CS-1999-12
[Introduction] In this paper we present an architecture for a Personal Travel Assistant (PTA). We focus on
the ability of this PTA to elaborate a user’s travel requirements and evaluate offers. These
decisions are based on a User Profile that has the interesting characteristic that it adopts a lazy
policy on learning from a user’s past behavior.
Information on user behaviour is stored in a case base in the form of a Case Retrieval Net
(Lenz, Auriol & Manago, 1998). A Retrieval Net can capture context-sensitive similarity
information which is important in this domain. This lazy approach also has the advantages
that it is incremental, extendible and allows flexible reuse of the information. In contrast,
eager approaches must make assumptions about how the learned knowledge is to be used.
This user profiling system is being implemented as part of the Personal Travel Assistance
scenario proposed by FIPA (Foundation for Intelligent Physical Agents).
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