Minerazzi Crawler and Whois Updates: Email Addresses, Reverse DNS, IPv4 Mapping, Navigation

We keep improving the Minerazzi site (http://www.minerazzi.com). We moved all pages to a php format. In addition, here are recent … More

Matrix Algebra for Search Marketing

Today I feel like giving away a little quiz material on applied linear algebra. The topic is relevant these days … More

Soon or later CS students, in particularly those in IR, will need to deal with similarity matrices. In simple terms, … More

Explain and give example for the following matrices used in IR: 1. Term-document occurrence matrix. 2. Term-term co-occurrence matrix. 3. … More

Answers to the IR Quiz are given below: Term Independence Assumption: If k1 and k2 are statistically independent they should … More