Overview / Algorithms
Algorithms
SAX-VSM and the underlying algorithms — z-normalization, PAA, SAX, tf·idf and cosine similarity — built up step by step.
SAX-VSM and underlying algorithms are discussed in this module.
reading
Z-normalization
An overview of Z-normalization.
readingPiecewise Aggregate Approximation (PAA)
An overview of PAA algorithm.
readingSymbolic Aggregate Approximation (SAX)
An overview of SAX discretization algorithm.
readingTime series discretization via sliding window
An overview of time series discretization via sliding window.
readingSAX numerosity reduction
SAX Discretization numerosity reduction
readingTFIDF statistics
TF*IDF statistics overview.
readingCosine similarity
Cosine similarity.
readingInterpretable time series classification with SAX-VSM
SAX-VSM algorithm description.
readingSAX bitmap patterns visualization
How to use SAX for bitmap-like time series pattern visualization.