Analytics
253 views

Mind Maps of #textanalytics

cristian mesiano - February 21, 2013

Here is snippet of a project I'm working on during my spare time. The project has the aim to gather, provide and represent knowledge in a different way. For…

Text Analytics
166 views

Key Words Through Graph Entropy Hierarchical Clustering

cristian mesiano - October 24, 2012

In the last post I showed how to extract key words from a text through a principle called graph entropy. Today I'm going to show another application…

Data Mining
173 views

Data Mining: Tools and Certificates

cristian mesiano - July 10, 2012

As member of many Linkedin groups related to data mining & text mining I read many threads related to certificates that should help either in job seeking…

Analytics
185 views

Outlier Analysis: Chebyschev Criteria vs Approach Based on Mutual Information

cristian mesiano - May 24, 2012

As often happens, I usually do many thing in the same time, so during a break while I was working for a new post on applications of…

Analytics
168 views

Uncertainty Coefficients for Features Reduction – Comparison with LDA Technique

cristian mesiano - May 7, 2012

We have already discussed feature selection and features reduction, and all the techniques we explored were strictly related and applicable only in the text mining domain. (more…)

Analytics
176 views

Earthquake Prediction Through Sunspots Part II: common Data Mining Mistakes!

cristian mesiano - April 4, 2012

While I was writing the last post I was wondering how long before my followers will notice the mistakes I introduced into the experiments.Let's start the treasure…

Analytics
158 views

Extract Meta Concepts Through Co-occurrences Analysis and Graph Theory.

cristian mesiano - January 13, 2012

During the Christmas period I finally had the chance to read some papers about probabilistic latent semantic and its applications in auto classification and indexing.The main concept behind…

Analytics
123 views

Support Vector Clustering: An Approach to Overcome the Limits of K-means

cristian mesiano - September 26, 2011

Some time ago, I posted a banal case to show the limits of K-mean clustering. A follower gave us a grid of different clustering techniques (calling internal…