On Term Repetition and Local Models

I’m putting together a piece on several local term weight models. It should be ready in few weeks. It is …

Defining Data Mining and Database

What is the (^H^H^H) best definition for data mining and database? It depends on who you ask and in which …

When Noise is a Good Thing.

Today, a reader (name removed to protect confidentiality) asked me: My name is **** ****. I working as a junior …

Ethical Hacking: An Oxymoron, a Misnomer, or Both?

According to a report from the British Computer Society (BCS) covering a Security Panel Strategic Forum, “ethical hacking” is an …

Google Accused of Conversion-Inflation Syndication Fraud

According to Ben Edelman, Google is engaged in a conversion-inflation syndyication fraud. These tactics are nothing new. In the featuring …

IR Quiz: Matrices

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

Vector Normalization with Excel – Part II

Back in March, we explained how to normalize column vectors with Excel. But, what about normalizing row vectors? This question …

NSA/DHS Designates PUPR as a CAE

As blogged yesterday, the current issue of IRW should reach subscribers inbox today. The Top CS Departments column features Polytechnic University …

IRW: RIA Vulnerabilities

The current of issue of IRW should reach subscribers inbox tomorrow. In this issue: Featuring article: RIA Vulnerabilities This issue of …