Rapidly replanning A*

2016-2017 > Academic research: refereed > Refereed conference paper201804_a bcmaAccepted ManuscriptPublishe

Data clustering with cluster size constraints using a modified k-means algorithm

2014-2015 > Academic research: refereed > Refereed conference paperAccepted ManuscriptPublishe

A practical regularization technique for modified nodal analysis in large-scale time-domain circuit simulation

Fast full-chip time-domain simulation calls for advanced numerical integration techniques with capability to handle the systems with (tens of) millions of variables resulting from the modified nodal analysis (MNA). General MNA formulation, however, leads to a differential algebraic equation (DAE) system with singular coefficient matrix, for which most of explicit methods, which usually offer better scalability than implicit methods, are not readily available. In this paper, we develop a practical two-stage strategy to remove the singularity in MNA equations of large-scale circuit networks. A topological index reduction is first applied to reduce the DAE index of the MNA equation to one. The index-1 system is then fed into a systematic process to eliminate excess variables in one run, which leads to a nonsingular system. The whole regularization process is devised with emphasis on exact equivalence, low complexity, and sparsity preservation, and is thus well suited to handle extremely large circuits. © 2012 IEEE.published_or_final_versio

DOCS: Domain-Aware Crowdsourcing System

published_or_final_versio

A constraint-aware heuristic path planner for finding energy-efficient paths on uneven terrains

2014-2015 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Time-domain analysis of large-scale circuits by matrix exponential method with adaptive control

We propose an explicit numerical integration method based on matrix exponential operator for transient analysis of large-scale circuits. Solving the differential equation analytically, the limiting factor of maximum time step changes largely from the stability and Taylor truncation error to the error in computing the matrix exponential operator. We utilize Krylov subspace projection to reduce the computation complexity of matrix exponential operator. We also devise a prediction-correction scheme tailored for the matrix exponential approach to dynamically adjust the step size and the order of Krylov subspace approximation. Numerical experiments show the advantages of the proposed method compared with the implicit trapezoidal method. © 1982-2012 IEEE.published_or_final_versio

Development of packaging and electrical interfacing for electrical vehicles

Author name used in this publication: K. W. E. ChengAuthor name used in this publication: S. L. HoRefereed conference paper2006-2007 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Multiobjective path planning on uneven terrains based on NAMOA*

2015-2016 > Academic research: refereed > Refereed conference paperAccepted ManuscriptPublishe

Effects of correlation-based VM allocation criteria to cloud data centers

2016-2017 > Academic research: refereed > Refereed conference paper201804_a bcmapreprint_postprin

Rapid replanning of energy-efficient paths for navigation on uneven terrains

2015-2016 > Academic research: refereed > Refereed conference paperAccepted ManuscriptPublishe