Monday, March 16, 2015

personal security seminar


Distinguished speaker - Capturing Meaning: Units, Space, and Time

Capturing Meaning: Units, Space, and Time

Dr. Curt Burgess, Ph.D., Professor of Psychology; Director,
Laboratory for Computational Cognition, Dept. of Psychology,
University of California, Riverside

Date: March 23, 2015
Time: 1.00 pm
Location: 202 IST

Abstract: The Hyperspace Analogue to Language (HAL) high-dimensional model of memory has a 20-year history of being used to learn word meaning from very large corpora of text. The KISS principle has motivated the development of the model from the beginning. The model moves a window along a corpus of text capturing co-occurrences one word at a time. The cooccurrence values are weighted provided a grammatical element. The resulting n x n matrix can be seen as a model of word similarity. From a computational perspective, the model is straightforward and does not have the computing overhead found in neural networks. Research will be presented that will compare the architecture of HAL and a simple neural network, how they learn and what is encoded in their respective “memories.” An overview of the range of
basic cognitive and psycholinguistic effects that have been mimicked by the HAL model will be
presented. The HAL model presents a computational approach based on large-scale corpus data
toward our understanding of semantic memory and language representation.

Biography: Dr. Curt Burgess is a Professor in Psychology and Neuroscience and the Director of the Psycholinguistics and Computational Cognition Laboratory and a founding member of the Center for
Computational and Cognitive Politics at the University of California, Riverside. His primary research interests include human semantic processing and cognitively plausible computational semantics, cognitive  neuroscience, animal cognition and computational politics. In 1994 his lab developed the Hyperspace Analogue to Language model of semantic representation. He is a former Associate Editor of Brain and Cognition. He was a recipient of the NSF and White House Presidential Faculty Fellow Award. His research has been funded by NSF, NIA, Digital Media Innovation Program and the Army Research Lab.

Monday, March 2, 2015

learn python for free

I am often asked by students how much, and what kind, of programming is needed for s security professional.  My stock answer is 'as much as possible.'

However this is not realistic for everyone.  So, in addition to markup such as HTML, and database query such as SQL, I also recommend scripting with Bash and Python.

So - in that spirit - here is a link to a free online python course:

http://learnpythonthehardway.org/book/