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The Italian Hate Map: semantic content analytics for social good

The Italian Hate Map: semantic content analytics for social good - Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis (Università degli Studi di Bari ‘Aldo Moro’, Italy - SWAP Research Group) - I-CiTies 2015 2015 CINI Annual Workshop on ICT for Smart Cities and Communities Palermo (Italy) - October 29-30, 2015

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The Italian Hate Map:
semantic content analytics for social good
Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis
(Università degli Studi di Bari ‘Aldo Moro’, Italy - SWAP Research Group)
I-CiTies 2015
2015 CINI Annual Workshop on ICT
for Smart Cities and Communities
Palermo (Italy) - October 29-30, 2015
2Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis
The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
3
The Italian HateMap
http://users.humboldt.edu/mstephens/hate/hate_map.html
Inspired by the
Hate Map built by
the Humboldt
University
joint research with a
psychologists team of
Rome University and a
no-profit agency
focused on human
rights
Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis
The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
4
http://users.humboldt.edu/mstephens/hate/hate_map.html
Insight:
To aggregate rough
people-based data
in order to analyze
complex
phenomena.
The Italian HateMap
Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis
The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
5
(Not a new idea) Map of cholera in London, 1854
red = cholera cases
blue = water
The Italian HateMap
Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis
The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
6
Research Question:
Is it possible to extract and process social media
to detect intolerant content posted on social
networks and identify the most at-risk areas of the
Italian country?
The Italian HateMap
Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis
The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015

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The Italian Hate Map: semantic content analytics for social good

  • 1. The Italian Hate Map: semantic content analytics for social good Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis (Università degli Studi di Bari ‘Aldo Moro’, Italy - SWAP Research Group) I-CiTies 2015 2015 CINI Annual Workshop on ICT for Smart Cities and Communities Palermo (Italy) - October 29-30, 2015
  • 2. 2Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 3. 3 The Italian HateMap http://users.humboldt.edu/mstephens/hate/hate_map.html Inspired by the Hate Map built by the Humboldt University joint research with a psychologists team of Rome University and a no-profit agency focused on human rights Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 4. 4 http://users.humboldt.edu/mstephens/hate/hate_map.html Insight: To aggregate rough people-based data in order to analyze complex phenomena. The Italian HateMap Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 5. 5 (Not a new idea) Map of cholera in London, 1854 red = cholera cases blue = water The Italian HateMap Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 6. 6 Research Question: Is it possible to extract and process social media to detect intolerant content posted on social networks and identify the most at-risk areas of the Italian country? The Italian HateMap Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 7. 7 A framework for real-time Semantic Analysis of Social Streams CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 8. 8 CrowdPulse Social Data Extraction features Semantic Tagging Sentiment Analysis Processing & Visualization Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 9. 9 workflow CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 10. 10 Step 1: Social Data Extraction CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 11. 11 Step 1: Social Data Extraction Extraction Source Heuristics CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 12. 12 Step 1: Social Data Extraction Extraction Source Heuristics CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 13. 13 Step 1: Social Data Extraction Extraction Source Heuristics Content User Geo Content+Geo #icities2015 #democrats #traffic @barack_obama @comunepalermo #earthquake Page Group CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 14. 14 Step 1: Social Data Extraction Extraction Source Heuristics Content User Geo Content+Geo #www2015 #democrats #traffic @barack_obama @comunefi #earthquake Page Group We only extract public content CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 15. 15 Use Case Heuristics: Twitter content - 76 intolerant seed terms, defined by the psychologists teams - 5 intolerance dimensions: violence (against women), racism, homophobia, disability, anti-semitism CROWDPULSE SETTINGS The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 16. 16 Use Case Extracted content (seed term: nano/midget) Tweet about an Italian ministry CROWDPULSE SETTINGS Tweet about iPod nano Tweet about an Italian football player The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 17. 17 Use Case Tweet about an Italian ministry CROWDPULSE SETTINGS Tweet about iPod nano Tweet about an Italian football player The Italian Hate Map Many non-intolerant Tweets are extracted! X X Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 18. 18 Use Case Sentiment Analysis and Semantic Tagging of the content CROWDPULSE SETTINGS Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015 The Italian Hate Map
  • 19. Keyword-based representation introduces a lot of noise in the analysis nano ? (midget) (ipod nano) Semantic Tagging Motivations Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015 19
  • 20. “E’inutile, il mio nano non segnerà mai” ? Semantic Tagging Motivations Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015 INTOLERANT NOT INTOLERANT ? 20
  • 21. • Entity Linking Algorithms • Input: textual content • Output: identification and disambiguation of the entities mentioned in the text. (1) http://tagme.di.unipi.it (2) http://spotlight.dbpedia.org 21 Step 2: Semantic Tagging Solution: semantic processing of extracted content Algorithms CrowdPulse Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 22. 22 Use Case Non-intolerant Tweets are detected and filtered out. CROWDPULSE SETTINGS The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 23. 23 CrowdPulse Step 3: Sentiment Analysis Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 24. 24 Sentiment Analysis Motivations Is this content conveying any opinion? Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 25. 25 Sentiment Analysis Motivations Is this content conveying any opinion? This is a crucial issue if people-based findings have to be generated Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 26. 26 Sentiment Analysis Definition “It is the field of study that analyzes people’s opinions, sentiments, evaluations, appraisals, attitudes, and emotions towards entities such as products, services, organizations, individuals, issues, events, topics, and their attributes “ (*) (Pang, Bo, and Lillian Lee. "Opinion mining and sentiment analysis." Foundations and trends in information retrieval, 2008) We concentrated on the polarity detection task Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 27. 27 Use Case Tweets with positive or neutral sentiment are detected and filtered out. CROWDPULSE SETTINGS The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 28. 28 Use Case CROWDPULSE SETTINGS The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 29. 29 CrowdPulse Step 4: Processing Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 30. 30 Use Case We have to build a map, so we only need geotagged content CROWDPULSE SETTINGS The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 31. 31 Use Case CROWDPULSE SETTINGS The Italian Hate Map Definition of heuristics to increase the number of geotagged Tweets Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 32. 32 Use Case The Italian Hate Map Dimension #Tweets #Geo %Geo Homophobia 110,774 8,501 7,66% Racism 154,170 1,940 1,24% Violence 1,102,494 28,886 2,62% Disability 479,654 3,410 0,75% Anti-Semitism 6,000 1,150 18,03% Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 33. 33 CrowdPulse Step 4: Data Visualization Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 34. 34 Use Case CROWDPULSE OUTPUT The Italian Hate Map Violence against women Disability Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015 based on OpenStreetMap
  • 35. 35 Use Case CROWDPULSE OUTPUT The Italian Hate Map Racism Homophobia Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015 based on OpenStreetMap
  • 36. Conclusions 36 Crowdsourcing-based approach Social content containing the seed terms is extracted and processed in real-time Semantic Processing exploited to delete non-intolerant Tweets Sentiment Analysis used to filter out Tweet with irony 1. 2. 3. 4. Analytics Console used to build real-time hate maps Almost 2,000,000 social content extracted and analyzed. The Italian Hate Map Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 37. Lessons Learned 37 Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 38. 38 Lessons Learned The Italian Hate Map Given the maps and given the output of the linguistic analysis of intolerant Tweets (co-occurrences between terms, time lapse, etc.), the psychologists team defined some guidelines to tackle and prevent intolerant behaviors. These guidelines have been freely distributed to public administration on early 2015. Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015
  • 39. Lessons Learned 39 Pipeline of state of the art techniques Semantic Processing, Sentiment Analysis, Machine Learning, Data Visualization Use Case: The Italian Hate Map DEFINITION OF A FRAMEWORK FOR REAL-TIME SEMANTIC CONTENT ANALYSIS Thanks to the huge availability of textual data very complex phenomena can be analyzed in a totally new way Cataldo Musto, Giovanni Semeraro, Pasquale Lops, Marco de Gemmis The Italian Hate Map: semantic content analytics for social good. iCities 2015 Workshop, Palermo (Italy) 30.10.2015