A rcccnt trend in cxpcrt systems rcscarch has been toward systems which reason from descriptions of causnl processes in the domain, rather than from the surface cffccts. ‘I’his is the “causal model” versus “cinpirical association” distinction prcscntcd in [2]. Typically, this involves creating a dctailcd model of the physical proccsscs which undcrly the domain. ‘I’his model must support infcrcn...

Telemedicine, enabled by state-of-art information technology, is rapidly gaining awareness in many countries. Despite the advanced telecommunication infrastructure, the introduction of telemedicine in Hong Kong has been slow. Hong Kong’s monopolistic health care system provides an answer for the protracted development of telemedicine in the region. This study attempts to reach a theoretical und...

Commercially successful video games easily sell more than one million units in the US market alone and gross more than $ 100 million. Few research approaches have asked the question what makes a video game succeed in the market. This paper focuses on the role of external information sources. As video games are experience goods whose value for the consumer only becomes apparent after he or she h...

A fundamental question in causal inference is whether it is possible to reliably infer ma­ nipulation effects from observational data. There are a variety of senses of asymptotic reliability in the statistical literature, among which the most commonly discussed frequen­ tist notions are pointwise consistency and uniform consistency (see, e.g. Bickel, Dok­ sum [200 1]). Uniform consistency is in...