News Column

Reports from Department of Electrical Engineering Highlight Recent Findings in Algorithms

June 17, 2014

By a News Reporter-Staff News Editor at Journal of Mathematics -- Current study results on Algorithms have been published. According to news reporting originating in Montreal, Canada, by VerticalNews journalists, research stated, "In this paper, we propose a uniform quantization likelihood evaluation (UQLE) algorithm for particle filters (PFs). This algorithm simplifies the exact likelihood evaluation (ELE) algorithm, the most computationally demanding function in PFs, by using a uniform quantization scheme to generate approximated weights."

The news reporters obtained a quote from the research from the Department of Electrical Engineering, "Simulation results indicate that PFs using UQLE can achieve comparable or better accuracy than PFs using ELE. The software implementation of UQLE for the bearing-only tracking (BOT) model in fixed-point arithmetic with 32 quantized intervals achieves 39.5x average speedup over the software implementation of ELE. An Application-specific Instruction-set Processor instruction was designed to accelerate the UQLE algorithm in a hardware implementation."

According to the news reporters, the research concluded: "The custom instruction implementation of UQLE for the BOT model with 32 intervals achieves 23.0x average speedup over the software implementation on a general-purpose processor with 5 % additional gates."

For more information on this research see: Efficient Uniform Quantization Likelihood Evaluation for Particle Filters in Embedded Implementations. Journal of Signal Processing Systems for Signal Image and Video Technology, 2014;75(3):191-202. Journal of Signal Processing Systems for Signal Image and Video Technology can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA.

Our news correspondents report that additional information may be obtained by contacting Q.F. Gan, Polytechnic Montreal, Dept. of Elect Engn, Montreal, PQ H3C 3A7, Canada. Additional authors for this research include J.M.P. Langlois and Y. Savaria.

Keywords for this news article include: Quebec, Canada, Montreal, Software, Algorithms, North and Central America

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Source: Journal of Mathematics

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