Chienting Lin

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This research presents preliminary results generated from the semantic retrieval research component of the Illinois Digital Library Initiative (DLI) project. Using a variation of the automatic thesaurus generation techniques, to which we refer as the concept space approach, we aimed to create graphs of domain-speciic concepts (terms) and their weighted(More)
In this paper, we report on two user-centric evaluation studies of COPLINK, a suite of criminal data mining and knowledge management applications developed at the University of Arizona. Our evaluations concentrate on system usability and user acceptance in the law enforcement setting. Findings from our studies provide insights to digital government systems(More)
In this paper, we report our work on developing and evaluating a prototype system aimed at addressing the information monitoring and sharing challenges in the law enforcement domain. Our system, called COPLINK Agent, is designed to provide automatic information filtering and monitoring functional-ities. This system also supports knowledge sharing by(More)
This study purports to develop and empirically examine a model for explaining technology acceptance decisions by individual law enforcement officers. Specifically, we describe the research model and hypotheses, detail our study design, and highlight important results from a pretest study that included 42 detectives and police officers from the Tucson Police(More)
In law enforcement applications, there is a critical need for new tools that can facilitate efficient and effective collaboration. Through a field study, we observe that crime analysis, a critical component of law enforcement operations, is knowledge intensive and often involves collaborative efforts from multiple law enforcement officers within and across(More)
The ability to create a big picture of a knowledge domain is valuable to both experts and newcomers, who can use such a picture to orient themselves in the field's intellectual space, track the dynamics of the field, or discover potential new areas of research. In this chapter we present an overview of medical informatics research by applying domain(More)