Older blog entries for sness (starting at number 5201)

SAX - jmotif - Walk through steps of Symbolic Aggregate approXimation. - A temporal data-mining toolkit based on SAX and TFIDF statistics. - Google Project Hosting

SAX - jmotif - Walk through steps of Symbolic Aggregate approXimation. - A temporal data-mining toolkit based on SAX and TFIDF statistics. - Google Project Hosting: "SAX transforms a time-series X of length n into the string of arbitrary length , where typically, using an alphabet A of size a > 2. The SAX algorithm consist of two steps: during the first step it transforms the original time-series into a PAA representation and this intermediate representation gets converted into a string during the second step. Use of PAA at the first step brings the advantage of a simple and efficient dimensionality reduction while providing the important lower bounding property as shown in the previous section. The second step, actual conversion of PAA coefficients into letters, is also computationally efficient and the contractive property of symbolic distance was proven by Lin et al."

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Syndicated 2013-02-20 00:00:00 from sness

GNU Emacs Calc Manual

GNU Emacs Calc Manual: "To make a long story short, Emacs Lisp turned out to be a distressingly solid implementation of Lisp, and the humble task of calculating turned out to be more open-ended than one might have expected."

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Syndicated 2013-02-19 18:14:00 from sness

WebPlatform.org — Your Web, documented

WebPlatform.org — Your Web, documented: "We are an open community of developers building resources for a better web, regardless of brand, browser or platform. Anyone can contribute and each person who does makes us stronger. Together we can continue to drive innovation on the Web to serve the greater good. It starts here, with you."

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Syndicated 2013-02-19 17:50:00 from sness

Giant Robot Spider at CES 2013 - YouTube

Giant Robot Spider at CES 2013 - YouTube: "