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The current issue of IRW should arrive today to subscribers inbox. It is full of meaty stuff. The featuring article is Part Three of the series on inverted index architectures. We cover positional inverted indexes. It is shown with a simple example how these indexes processs advance searches (AND, NEAR, and EXACT) in order to retrieve documents.

The QA column covers hypothesis testing with correlation coefficients at a given sample size and confidence level.

Enjoy it!