The web is transforming from traditional web to web of data, where information is presented in such a way that it is readable by machines as well as human. As a part of this transformation, every day more and more websites implant structured data, e.g. product, person, organization, place etc., into the HTML pages. To implant the structured data different encoding vocabularies, such as RDFa, mi...

Spark plays a great role in studying uniqueness of sparse solutions of the underdetermined linear equations. In this article, we derive a new lower bound of spark. As an application, we obtain a new criterion for the uniqueness of sparse solutions of linear equations.

Near real time Big Data from social network sites like Twitter or Facebook has been an interesting source for analytics by researchers in recent years owing to various factors including its up-to-date-ness, availability and popularity, though there may be a compromise in genuineness or accuracy. Apache Spark, the trendy big data processing engine that offers faster solutions compared to Hadoop,...

Parkinson disease (PD) is a neurodegenerative disorder afflicting more than 1 million aging Americans, incurring $23 billion in annual medical costs in the U.S. alone. Approximately 90% Parkinson patients undergoing treatment have mobility related problems related to medication which prevent them doing their activities of daily living. Efficient management of PD requires complex medication regi...

HypTrails is a bayesian approach for comparing different hypotheses about human trails on the web. While a standard implementation exists, it exposes performance issues when working with large-scale data. In this paper, we propose a distributed implementation of HypTrails based on Apache Spark taking advantage of several structural properties inherent to HypTrails. The performance improves subs...

When players in online games engage in conversation with each other, often through a chat window, their graphical avatars typically do not exhibit interesting behavior. This paper proposes using a model of face-to-face communication to automatically generate realistic nonverbal behavior in the avatars based on what is going on in the conversation. It describes Spark, a flexible XML based archit...

We study the Harvey-Lawson spark characters of level p on complex manifolds. Presenting Deligne cohomology classes by sparks of level p, we give an explicit analytic product formula for Deligne cohomology. We also define refined Chern classes in Deligne cohomology for holomorphic vector bundles over complex manifolds. Applications to algebraic cycles are given. A Bott-type vanishing theorem in ...