We consider the problem of learning the structure of a pairwise graphical model over continuous and discrete variables. We present a new pairwise model for graphical models with both continuous and discrete variables that is amenable to structure learning. In previous work, authors have considered structure learning of Gaussian graphical models and structure learning of discrete models. Our app...

We investigate the use of graphical models in two fundamental problems of group coordination: (1) reaching a consensus on beliefs, and (2) allocating risk. On the negative side, we prove that under mild assumptions, even if every member of a group agrees on a graphical topology, no method of combining their beliefs can maintain that structure. Even weaker conditions rule out local aggregation w...

Efficient tracking of class performance across topics is an important aspect of classroom teaching; this is especially true for psychometric general intelligence exams, which test a varied range of abilities. We develop a framework that uncovers a hidden thematic structure underlying student responses to a large pool of questions, using a probabilistic graphical model.

Among other factors, high complexity and mandatory expert computer knowledge make many music IR and music analysis systems unsuitable for the majority of largely computer-illiterate musicologists. The JRing system offers highly flexible yet intuitively usable search and comparison operations. to aid musicologists during score analysis. This paper discusses the requirement analysis that led to J...

The Haskell Equational Reasoning Assistant (HERA) is an application written in Haskell that helps users construct and present equational reasoning style proofs[1]. In this paper we discuss the technology behind the user interface.

The article presents assumptions, and results of a test of experimental verification of a hypothesis stating that the use of the MammoEdit a tool that uses its own ontology and the embedded knowledge of mammography – increase the diagnostic accuracy as well as the reproducibility of mammographic interpretation. The graphical user interface of the editor was similarly assessed, as well as the ru...

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The Icon Editor is a platform for exploring the construction of dynamic graphical icons and the techniques for relating those entities to an application. The research goals of this work are to discover new techniques for the graphical specification of behavior and to develop a foundation for the connection of an application to an interface. The broader VlSlOn is a framework supporting a series ...

Visual development environments have provided good support in the reuse of graphical user interface, report and query generation, and simpler database retrieval and updating. However, many commonly used components for computation and database processing and updating are still required to be repeatedly designed and developed. The main problem is that current methods do not support the separation...