The disadvantages of apriori algorithm are firstly discussed. Then, a new measure of kendall-τ is proposed and treated as an interest threshold. Furthermore, an improved Apriori algorithm called K -apriori is proposed based on kendall-τ correlation coefficient. It not only can accurately find the relations between different products in transaction databases and reduce the useless rules but also...

Science begins with the question, what do I want to know? Science becomes science, however, only when this question is justified and the appropriate methodology is chosen for answering the research question. Research question should precede the other questions; methods should be chosen according to the research question and not vice versa. Modern quantitative psychology has accepted method as p...

[Context/motivation] Game development is characterized by a high level of creativity when compared to other fields of software development. Games cover a multitude of themes and genres, and represent a heterogeneous group of different products with varying requirements and business goals. [Question/problem] Requirements engineering (RE) should be relevant to game development, but is this true a...

We consider the design of optimal strategies for joint power adaptation, rate adaptation and scheduling in a multi-hop wireless network. Most existing strategies for ad-hoc networks control either power and scheduling, or rates and scheduling, but not the three together as we do. We assume the underlying physical layer allows finegrained rate adaptation (like in 802.11a/g, HDR/CDMA, UWB). Our g...