Towards an emerging animal disease surveillance system based on - PowerPoint PPT Presentation

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Towards an emerging animal disease surveillance system based on textual media analysis S. Valentin, R. Lancelot, M. Roche S. Valentin - Living Territories - 2018/01/23 (Montpellier) Monitoring of international animal health events Official

Towards an emerging animal disease surveillance system based on textual media analysis S. Valentin, R. Lancelot, M. Roche S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Monitoring of international animal health events Official sources Unofficial sources 2 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
PADI-web  ‘Platform for Automated extraction of animal Disease Information from the web’ African swine fever Foot-and- Avian mouth Influenza disease Schmallenberg Bluetongue virus 3 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
What is done (3) Information extraction (2) Data classification (1) Data acquisition 4 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Data classification 5 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
What is done (3) Information extraction (2) Data classification (1) Data acquisition 6 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Information extraction  Based on text mining methods  Rule-based approach (labelled corpus)  SVM classification Type Accuracy Location 0.80 Dates 0.88 Diseases 0.96 Cases 0.85 Species 0.96 7 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Challenges and issues Identification of Combination of information information Epidemiological knowledge 8 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Identification of information: How to deal with spatial ambiguity?  Spatial ambiguities (Amitay et al. 2004) T ype of ambiguity Example ‘This’, France vs ‘This’, preposition Geo/non-geo Geo/geo ‘Paris’, France vs ‘Paris’, Texas Geo/organization ‘the Paris-based OIE’ 9 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Identification of information: What are we looking for? Heterogeneous Symptoms data malformation Syndroms zootechnical data hyperthermia reproductive laboratory data diarrhea digestive economical anorexia … … weakness … Weak ? signals 10 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Combination of information Unofficial Official sources sources Spatial entities Source 1 T emporal entities Source 2 Diseases … Hosts Source n Syndroms How to combine? 11 S. Valentin - Living Territories - 2018/01/23 (Montpellier)
Conclusion 12 S. Valentin - Living Territories - 2018/01/23 (Montpellier)

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