Introduction Social Sentiment Index Results

Sentiment Index of theRussian Speaking Facebook

International Conference on Computational LinguisticsDialogue 2014, Bekasovo, Russia

Alexander Panchenko

Digital Society Laboratory LLC, Moscow, Russia &Universite catholique de Louvain, Louvain-la-Neuve, Belgium

June 8, 2014

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Motivation: Can we measure happiness?

Why such a wild idea as measuring happiness?

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Happiness: Google

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Happiness: semantic field

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Happiness: semantic field

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Happiness: self-reported vs estimated

self-reportedare you happy now?

estimated from socio-economical factorsgross national productquality of life, etc.

estimated from linguistic datapositive statements vs negative statementsseveral researchers considered this problem during last 10 yearsblogs: Mihalchea and Lui (2005), Mishne and Rijke (2006),Balog and Rijke (2006)social networks: Dodds et al. (2011), Kamvar and Harris(2011), Facebook Gross National Happiness index (FGNH) ofKramer (2010)

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Contributions

Two contributions of this paper to the exploration ofsentiment/happiness indexes are as follows:

We propose four indexes that gauge emotional level ofpopulation. Unlike most previous works, we not only deal withword-based indexes, but also device a text-based index.To the best of our knowledge, this is the first study ofsentiment index of the Russian-speaking social network.

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Facebook Corpus

Statistics of the Facebook corpus

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Facebook Corpus

Number of texts per day in the Facebook corpus

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Sentiment Detection Method

Most frequent positive and negative adjectives in theFacebook corpus

1500 emotional adjectives (600 negative, 900 positive)

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Sentiment Detection Method

Dictionary Sentiment Text Classification Approach

emotion delta ∆ ∈ [−1; 1] – direction and amplitude of textsentimentD+ – positive termsD− – negative termsw – wordt – textn – length of textα ∈ [0; 1] – a threshold

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Sentiment Detection Method

Comparison of Sentiment Classification Approaches

ROMIP 2012 – Sentiment Analysis Collection

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Social Sentiment Indexes

Sentiment Indexes

The goal of a sentiment index is to measure positiveness of socialnetwork users during some period.

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Social Sentiment Indexes

Sentiment Indexes

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Results of the social sentiment index calculation during theentire period

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Evolution of the word sentiment index sw during the entireperiod

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Word (sw) and text (st) sentiment indexes

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Positive and Negative Events

(1) 31-12-*—New Year (+);(2) 14-02-*—St.Valentine’s day (+);(3) 23-02-*—Man’s day (+);(4) 08-03-*—Woman’s day (+);(5) 09-05-*—Victory Day, World War 2 commemorative day (–);(6) 07-07-2012—Krasnodar Krai floods in Russia 6 (–);(7) 22-07-2012—A new unpopular law regulating non-profitorganizations in Russia 7 (–);(8) 16-09-2012—A mass protest against government in Russia 8 (–);(9) 25-10-2012—Hurricane Sandy in US (–).

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Word (ew) and text (et) emotional indexes

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Word and text emotional indexes

Word (ew ) and text (et) emotional indexes, compared to thenumber of words.

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook

Introduction Social Sentiment Index Results

Thank you! Questions?

Alexander Panchenko Sentiment Index of the Russian Speaking Facebook