https://jmotif.github.io/sax-vsm_site/algorithm/Recent content in Algorithms on SAX-VSMHugoenhttps://jmotif.github.io/sax-vsm_site/algorithm/znorm/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/znorm/Why and how time series are standardized to zero mean and unit variance before discretization.https://jmotif.github.io/sax-vsm_site/algorithm/paa/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/paa/Dimensionality reduction by frame averaging, and the lower-bounding PAA distance.https://jmotif.github.io/sax-vsm_site/algorithm/sax/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/sax/How SAX turns a real-valued time series into a string: PAA frames, Gaussian breakpoints, and the lower-bounding MINDIST — with a fully worked example.https://jmotif.github.io/sax-vsm_site/algorithm/slidingwindowsax/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/slidingwindowsax/How a sliding window turns one long time series into an ordered sequence of SAX words describing its local features.https://jmotif.github.io/sax-vsm_site/algorithm/numerosityreduction/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/numerosityreduction/Collapsing runs of identical consecutive SAX words — smaller output, faster algorithms, and naturally variable-length patterns.https://jmotif.github.io/sax-vsm_site/algorithm/tfidf/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/tfidf/How term frequency and inverse document frequency turn per-class bags of SAX words into class-characteristic weight vectors.https://jmotif.github.io/sax-vsm_site/algorithm/cosine/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/cosine/The angle-based similarity measure that scores an unlabeled time series against each class’s tf·idf weight vector.https://jmotif.github.io/sax-vsm_site/algorithm/sax-vsm/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/sax-vsm/The full SAX-VSM algorithm: per-class bags of SAX words, tf·idf weighting, and cosine-similarity classification.https://jmotif.github.io/sax-vsm_site/algorithm/saxbitmap/Mon, 01 Jan 0001 00:00:00 +0000https://jmotif.github.io/sax-vsm_site/algorithm/saxbitmap/Turning SAX word frequencies into color bitmaps for at-a-glance comparison of large time series collections.