I am Dave Jing Tian, an Assistant Professor in the Department of Computer Science at Purdue University working on system security. My research involves embedded systems, operating systems, and trusted computing. All opinions are my own.
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Tag Archives: Python
Brad and I were working on some text similarity computation. One of the most popular string distance functions is the Levenshtein distance, which is also called the edit distance. We use Python for its brevity and widely-library support (OK, I … Continue reading
Our paper, as titled, has been accepted by DIMVA 2015 – Milano, Italy. While the final paper will not be released until July, we will have a brief summary of what we have done in this post. Another focus here … Continue reading
Recent playing with Python urllib2 reveals an interesting fact that the timeout parameter of urlopen() does not work sometimes. The interesting issue has successfully pushed me deep into the Python source code for debugging. The final debugging, without surprise, shows … Continue reading
“Building Probabilistic Graphical Models with Python” is the 3rd book I have reviewed from PACKT publishing. It has just been released on this June. Compared to the classic book of PGM – “PGM: Principles and Techniques” by Dr. Koller, this … Continue reading
An easy way to parse XML in Python is using Python xml.etree.ElementTree, which parses the XML document/data into a tree structure, where each node is an Element object. Only within few lines of code, one can extract all the XML … Continue reading
You may notice that the output of top and glances differs on memory usage (if you are using top and glances the same time). This post will disclose some details about memory info collection by glances and top. And the … Continue reading
pyCluster is a Python implementation for clustering algorithms, including PAM and CLARA, which are widely used in Data Mining. To better the performance of PAM, parallel PAM is designed and implemented using Parallel Python. The experiment shows that parallel PAM, … Continue reading
pyCluster is a Python implementation for clustering algorithms, including PAM and Clara. Enjoy! 1. PAM kMedoids – PAM implementation See more : http://en.wikipedia.org/wiki/K-medoids The most common realisation of k-medoid clustering is the Partitioning Around Medoids (PAM) algorithm and is as … Continue reading
pyMns is a python implementation for Markov Network solver, which read the UAI file (and UAI evidence as well) to do inference with some classical algorithms in Probabilistic Graph Model, including Variable Elimination (VE) and Belief Propagation (BP). Have fun! … Continue reading