Download - Sentiment Analysis Symposium2014

Sharing Emotions in Social Networks!Data Mining Tools for Audience Sentiment Analysis!!Vittorio Di Tomaso!

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!Blogmeter collects 1M+ Italian tweets

every day!!

About 10% are related to TV programs!!

Second screen is a reality!

All data collected using BlogMeter’s SocialTVMeter

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The Experiment !!

Is it possible to give broadcasters and advertisers true insights on how programs are perceived by

their audiences?!

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What we want!

A methodology to discover meaningful similarities and

differences in a collection of items described by several variables

(sentiment & emotions)!

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Semantic Analysis!

Sentiment analysis:!positive and negative tweets!

!Emotion detection:!

anger, disgust, fear, joy, sadness, surprise, love, like, dislike!

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The result of semantic analysis!

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Data Analysis: can we do better?!

To gain a deeper understanding of data, we derived a geometric representation of

people AND emotions in the same space!!

We employed Multiple Correspondence Analysis, a PCA variant for discrete data!

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COMPARING PROGRAMS’ EMOTIONAL SPECTRA!

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Simple CA: TV Shows and Classification!

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Emotions & Programs!Multiple Correspondence Analysis!

©Copyright Celi/Blogmeter 2014

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COMPARING X-FACTOR AND MASTERCHEF’S EMOTIONAL SPECTRA!

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X Factor 7!Correspondences between Episodes and Emotions!


MasterChef!Correspondences between Episodes and Emotions!


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X Factor vs Masterchef!


Conclusions!

Multivariate techniques were succefully applied on high quality semantic data!

!Highlighting relevant features of audiences

provides crucial pieces of information to broadcasters and potential advertisers!

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Thanks!!

Vittorio Di Tomaso [email protected]!Francesco [email protected]!www.celi.it!www.blogmeter.it!

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