eejournalfeaturearticles

Aye Calypto

Back in the 1980s, chips were designed with schematics. There was a comprehensive design tool flow to support schematic-based methodology, and the world had three big EDA companies - Daisy, Mentor, and Valid - whom most folks simply referred to as “DMV”. Those three companies thrived on the tools that defined that schematic-based flow - schematic capture, gate-level simulation, timing analysis, place-and-route, and design-rule...

iospress.metapress.com iospress.metapress.com

Density estimation of high dimensional data using ICA and Bayesian networks

This paper proposes a semi-non parametric density estimation framework for high-dimensional data. Dimensionality reduction is achieved by reorganizing the domain variables set into a junction tree of cliques each containing a small number of variables where factorization of the joint density into a tree is carried out by learning the Bayesian Network (BN) structure graph and by searching the maximum spanning tree over the...

iospress.metapress.com iospress.metapress.com

Optimizing star-coordinate visualization models for effective interactive cluster exploration on big data

Interactive visual cluster analysis is the most intuitive way for finding clustering patterns, validating algorithmic clustering results, understanding data clusters with domain knowledge, and refining cluster definitions. The most challenging step is visualizing multidimensional data and allowing user to interactively explore the data to identify clustering structures. In this paper, we systematically study the star-coordinate based...