In traditional auctions, it is often assumed that bidders are a homogenous group. However, since most online bidders are average consumers instead of professional bidders, we suspect that online bidders are a heterogeneous group. The purpose of this paper is to explore the types of online bidders based on their real bidding behaviors in a popular auction site. A cluster analysis is employed and...

We show that the set of cluster points jumping numbers a toric plurisubharmonic function in $\mathbf{C}^n$ is discrete for every $n \ge 1$. also give precise characterization those points. These generalize recent result D. Kim and H. Seo from $n=2$ to arbitrary dimension. Our method analyze asymptotic behaviors Newton convex bodies associated functions.

The article is devoted to the analysis of synergistic points potential cluster integration Ukrainian and European enterprises. advantages interaction in process production dual purpose products are presented. dependence socio-economic legal processes on contradiction society established. Factors competitiveness, regional global effects innovative technologies determined. Support platforms for p...

[Proposal defense document-submitted for review to the PhD dissertation committee]

During recent years, question answering (QA) has grown from simple passage retrieval and information extraction to very complex approaches that incorporate deep question and document analysis, reasoning, planning, and sophisticated uses of knowledge resources. Most existing QA systems combine rule-based, knowledge-based and statistical components, and are highly optimized for a particular style...