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Cristian Mesiano's Discussions
Classification Step: C 5.0 vs SVM
Started this discussion. Last reply by Cristian Mesiano Sep 12, 2011. 2 Replies 0 Likes
A new post on my blog:An early approach at "document classifier".I hope it will triggers some discussion on classification techniques.…Continue
Tags: SVM, C5, Classification
Cristian Mesiano's Page
Profile Information
- Company:
- Swiss RE
- Seniority:
- Other
- Job Function:
- Business Analytics, Predictive Modeling, Data Mining, Econometrics, Statistical Programming, Artificial Intelligence
- Short Bio:
- I am graduated (Master Degree) in CS and I work in a Enterprise Content Management department in a multinational company (Reinsurance focused). Our tasks are focused on document auto classification, document data extraction, selective search. We mix latest algorithms with Business requirements to offer real solution for demanding content consumers!
- LinkedIn Profile:
- http://textanddatamining.blogspot.com/
- Interests:
- Networking
Cristian Mesiano's Blog
Document Clustering and Graph Clustering: graph entropy as linkage function
Posted on November 17, 2012 at 1:35am 0 Comments 0 Likes
Let's continue our discussion about the applications of the graph entropy concept.
Today I'm going to show how we can re-use the same concept on the document clustering.
What I want to highlight is that through such methodology it's possible to:
- extract from a document the relevant words (as discussed …
Key words through graph entropy Hierarchical clustering
Posted on October 24, 2012 at 11:34am 0 Comments 0 Likes
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 of the graph entropy in order to extract clusters of key words.
Why
The key words of a document depict the main topic of the content, but if the document is big, often, there are many different sub topics related to the…
Graph Entropy to extract relevant words
Posted on September 24, 2012 at 2:39pm 0 Comments 0 Likes
I would share with you some early results about a research I'm doing in the field of "graph entropy" applied to text mining problem.
click here to read the entire post
Why Graph Entropy is so important?
Based on the main concept of entropy the following assumptions are true:
- The entropy of a graph should be a functional of the…
Function minimization: Simulated Annealing led by variance criteria vs Nelder Mead
Posted on August 12, 2012 at 3:09am 0 Comments 0 Likes
Most of the datamining problems can be reduced as a minimization/maximization problem.
... click here to read the entire post
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Ciao Cristian.
Bhe consigli su questo tema sono sempre delicati.
Sul text mining ti direi di seguire bene gli sviluppi di SAS e di EXPERT SYSTEM
In generale, gli Analytics un pò alla volta si stanno sviluppando, non solo nel Finance e Telco.