Towards personalised web intelligence

Ah-Hwee Tan, Hwee-Leng Ong, Hong Pan, Jamie Ng, Qiu-Xiang Li
2004 Knowledge and Information Systems  
The Flexible Organizer for Competitive Intelligence (FOCI) is a personalised web intelligence system that provides an integrated platform for gathering, organising, tracking, and disseminating competitive information on the web. FOCI builds personalised information portfolios through a novel method called User-Configurable Clustering, which allows a user to personalise his/her portfolios in terms of the content as well as the organisational structure. This paper outlines the key challenges we
more » ... ce in personalised information management and gives a detailed account of FOCI's underlying personalisation mechanism. For a quantitative evaluation of the system's performance, we propose a set of performance indices based on information entropy that measures the degree of matching between a system-generated cluster structure and a user-preferred category organisation. Experimental results of a case study show that FO-CI's personalisation increases the degree of matching tremendously after a reasonable number of operations. In addition, the personalised portfolios can be used to track and organise new information with a good level of performance. Learning: Once the search ends, a template-learning process modifies the template vectors w a J and w b J of the F 2 cluster J to encode the input information and preference vectors A and B respectively. Specifically, w a J and w b J are updated according to the equations w a(new) J = (1 − β a )w a(old) J + β a A ∧ w a(old) J (6) and w b(new) J = (1 − β b )w b(old) J + β b B ∧ w b(old) J
doi:10.1007/s10115-003-0130-9 fatcat:qpffuz4wpvgxxm27rp3w7n6deq