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Themos Kalafatis's Blog (8)

7th Annual Text Analytics Summit

I would like to say a few words about an upcoming major event for all of those interested in Text Analytics and its various uses in Social Media, Marketing and Business Intelligence. Starting on May 18th, the annual Text Analytics summit (the only conference dedicated completely to Text Mining) will take place in Boston, MA with a total of …

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Added by Themos Kalafatis on February 16, 2011 at 7:23am — No Comments

Banks, Risk Disclosure and Text Analytics



A UK-based MSc student of Kingston Business School - Christos Gkemitzis had an idea for his MSc project which immediately caught my attention : Use Text Analytics methods to annual reports given by Banks and extract metrics on how these Banks handle their Credit and Interest rate risk as explained in these reports and then test several…
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Added by Themos Kalafatis on September 1, 2010 at 3:16am — No Comments

Interview with Kaggle CEO Anthony GoldBloom



For those that haven't heard of Kaggle…
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Added by Themos Kalafatis on August 10, 2010 at 12:11am — No Comments

Summarization of Blog posts with "Web Pulse" Reports

In the past couple of months i was looking for a way to best capture and understand what happens on the Web -and more specifically what people write in blogs- in terms of sentiment and emerging trends. The first thing that i came up with was the the idea of creating a…
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Added by Themos Kalafatis on July 30, 2010 at 8:07am — No Comments

Predictive Analytics and Politics

Over the past month i had the opportunity to combine different techniques to identify trends and patterns regarding the economic situation in Greece as seen from a Web perspective. The collection was made from different sources : Blogs, forums and various websites.


The situation in Greece is more or less known to many people. The country is in a bad economic shape and this has…
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Added by Themos Kalafatis on April 13, 2010 at 11:44am — No Comments

Detecting Novelty in Twitter Posts

(Original post in Lifeanalytics)



A question one could come up with is the following : How can we easily identify and extract novel information from the web? Although we could apply this "novelty detection" into many areas i would like to discuss for now the idea of semi-automatically identifying novelty among posts on Twitter.



Let's take for example the… Continue

Added by Themos Kalafatis on January 5, 2010 at 3:30am — No Comments

The Sentiment on US Economy from Twitter

(From LifeAnalytics)



Is the economic crisis over? What is the sentiment of people regarding US Economy and the future? These are some of the questions that many people ask these days and the signs are somewhat mixed. Dow Jones is close to the 10000 mark and some US Economy Indices show that the worse is behind. But do people feel the same?



To answer these questions 10000 Tweets containing the word economy were… Continue

Added by Themos Kalafatis on November 11, 2009 at 2:21am — No Comments

Emotions, Beliefs and Analytics

(From lifeanalytics)



When i first came across Data Mining and Machine Learning in 1997 i had no idea of the kind of applications that this field can have. As time passes by, the knowledge that can be available to a data/text miner becomes more and more a serious business....actually, a very serious one.



Not long time ago i have seen a presentation where a map of emotions from the web was created in real time by aggregating… Continue

Added by Themos Kalafatis on January 12, 2009 at 7:48am — No Comments

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