Newsgroups: comp.parallel
From: parallel@netcom.com (B. Mitchell Loebel)
Subject: The PARALLEL Processing Connection - July meeting notice
Organization: NETCOM On-line Communication Services (408 261-4700 guest)
Date: Wed, 5 Jul 1995 18:15:41 GMT

July 10th - Data Compression - High Performance Computing Implications

On July 10th Prof. Robert Gray of Stanford University will present a 
comprehensive overview of data compression.  Always there is the 
juxtaposition of efficiency of coding, computational demand, and 
accuracy of data recovery.  Clearly, efficient compression translates into 
lower communication and storage costs.  Accuracy is not always simply 
an aesthetic issue, e.g. in the case of medical images, sufficient fidelity 
is critical to correct diagnosis and compression of executable code must 
be absolutely lossless.  Bob will discuss various types of signal 
decomposition - e.g. DCT (jpeg, mpeg, h.261) and wavelet transforms; 
various aspects of quantization - e.g. scalar vs. vector, uniform vs. 
nonuniform, Rdead zonesS; and the characteristics of several different 
kinds of entropy coding - e.g. runlength, huffman, lempel-ziv, 
arithmetic.

PPC members are interested in the computational requirements of the 
various compression methods and how their algorithms might be 
mapped onto parallel architectures and reconfigurable hardware; Bob 
will explore these details.


A discussion of member projects currently underway and other issues 
of interest to entrepreneurs begins at 7:15PM and the main meeting 
starts promptly at 7:45PM at Sun Microsystems at 901 San Antonio 
Road in Palo Alto. This is just off the southbound San Antonio exit of 
101.  Northbound travelers also exit at San Antonio and take the 
overpass to the other side of 101.

Please be prompt; as usual, we expect a large attendance; don't be left 
out or left standing. There is a $10 fee for non-members and members 
will be admitted free.  Yearly membership fee is $50.

-- 
B. Mitchell Loebel                                      parallel@netcom.com 
Director - Strategic Alliances and Partnering                  408 732-9869 
PARALLEL Processing Connection