Detecting communities plays a vital role in studying group level patterns of a social network and it can be helpful in developing several recommendation systems such as movie recommendation, book recommendation, friend recommendation and so on. Most of the community detection algorithms can detect disjoint communities only, but in the real time scenario, a node can be a member of more than one ...

In this paper we propose a spectral based clustering algorithm to maximize an extended Modularity measure for categorical data; first, we establish the connection with the Relational Analysis criterion. Second, the maximization of the extended modularity is shown as a trace maximization problem. A spectral based algorithm is then presented to search for the partitions maximizing the extended Mo...

After enterprise systems (ES) are infused to daily businesses, employees’ extended use has already become an important concern to firms striving for reaping benefits from IT investment. Considering the innovative and extra-role nature of extended use, the paper further re-conceptualizes extended use as proactive behaviour. And based on the theory of proactive motivation, a research model is dev...

This article presents a novel cascaded multilevel inverter as an alternative to the H-bridge (CHB). By adopting two H-bridges integrated with inductors and power switches, proposed topology is able generate five-level voltage merely single dc source. Voltage-boosting capability guaranteed despite its single-stage operation. A corresponding modulation technique also established charge boost cons...

Modularity is an important pragmatic aspect of semantic descriptions: good modu-larity is needed to allow the reuse of existing descriptions when extending or changing the described language. In denotational semantics, the issue of modularity has received much attention, and appropriate abstractions have been introduced, so that deenitions of semantic functions may be independent of the details...

This article is about community detection algorithms in graphs. First a new method will be introduced, which is based on an extension [16] of the commonly used modularity [17, 18, 19, 20] and gives overlapping communities. We list and compare the results given by our new method and some other algorithms yileding either overlapping or non-overlapping communities. While the main use of the propos...

This paper investigates the choice of a licensing mechanism by the holder of a patent whose validity is uncertain. Focusing …rst on weak patents, i.e. patents that have a high probability of being invalidated by a court if challenged, we show that the patent holder …nds it optimal to use a per-unit royalty contract if the strategic e¤ect of an increase in a potential licensee’s unit cost on the...