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Sustinerea tezei de doctorat
SISTEM AUTOMAT DE ANALIZA
SI PRELUCRARE SEMANTICA
PENTRU TEXTE SCRISE IN
LIMBA ROMANA
Autor: Catalin Cosoi
Coordonator: Prof. Dr. Ing.
Valentin Sgarciu
Cuprins
❖ Introducere / Motivatie
❖ Clasificarea Semantica
❖ Analiza Sentimentelor
❖ Sumarizarea
❖ Aplicativitatea
❖ Concluzii
Motivatie
❖ Meltwater – 8000 EUR / an (5 useri, 10 cuvinte cheie)
❖ ZeList – 3000 EUR / an (5 useri, 5 cuvinte cheie)
❖ Analiza media (atat brand propriu cat si competitori)
❖ Rezultate in scadere la filtrele antispam
❖ Document clustering
❖ Online Privacy Project
❖ Cautari sau operatiuni complexe folosind limbaj natural
❖ newsrank.ro & focusfun.ro
Clasificarea Semantica
❖ Imbunatatirea filtrarii
bayesiene (2006)
❖ Document (spam)
clustering (2007)
❖ newsrank.ro & focusfun.ro
(2009)
❖ Monitorizare Media (2011)
❖ Analiza Semanticii Latente
(LSA)
❖ Retele de Context (CNG)
❖ Regresie Logistica
❖ TF-IDF
❖ Bayes
❖ Retele Semantice
❖ Jaccard
Clasificarea Semantica
❖ SPAM filtering using feature relevance assignment in
neural networks - United States 8,131,655
❖ Systems and Methods for Dynamically Integrating
Heterogeneous Anti-Spam Filters - 8,572,184 B1
❖ Systems and methods for electronic fraud prevention -
United States 8,695,100
Imbunatatirea filtrarii
bayesiene
❖ Cosoi, A.C. ; Sgarciu, V. ; Vlad, M.S. ; Danube Adria
Association for Automation & Manufacturing – ISI
Proceedings
❖ Naïve Bayes Module + LinkGrammar
❖ 25 domenii stiintifice
❖ 0,5% - 25%
❖ 0,01% - 15%
Document (spam) clustering
❖ Brevet #
8,010,614 B1
❖ Titlu: Systems
and methods for
generating
signatures for
electronic
communication
classification
Analiza Sentimentelor
❖ O multitudine de tehnici si algoritmi
❖ Subiectivitatea si zonele geografice – dificultatea
analizei sentimentelor la nivel global
Sumarizarea
❖ DEZVALUIRI din INTIMITATE. CUM isi IMPART
TREBURILE CASNICE Klaus Iohannis si SOTIA SA, o
GOSPODINA DESAVARSITA
Sumarizarea MultiDocument
❖ Avand mai multe
documente similare,
este inlesnita si
sumarizarea
❖ Cuvintele cheie si
propozitiile cheie
sunt mai usor de
determinat
Aplicabilitate
❖ The Romanian Blogosphere as a Social Fractal,
A.C.Cosoi; B.Dumitru; V.Sgarciu; M.St.Vlad;
M.Corduneanu, IAFA 2009, vol.3, pp 36-40, ISSN: 2066-
4451
❖ The Romanian Social Fractal, AC COSOI V SGARCIU B
DUMITRU, Proceedings of DAAAM 2009, Viena,
Austria, 25-28 nov, pp.103-104, ISSN 1726-9679, ISBN
978-3-901509-70-4, indexata ISI Web of Knowledge
Monitorizare Media
Monitorizare Media
❖ Extragerea stirilor din ora in ora din peste 50 publicatii
❖ Gruparea Stirilor pe categorii/topicuri/subiecte
❖ Analiza Sentimentelor (pozitiv, negativ)
❖ Sumarizarea
❖ Notificarea utilizatorilor (in functie de frecventa)
Resurse
❖ Liste de obiecte / criterii – analiza sentimentelor
❖ Expresii de concluzionare
❖ Acronime
❖ Abrevieri
❖ 2,5 Ngrams (2010 – 2014)
❖ Cod sursa pentru intreaga platforma si toti algoritmii
studiati
Continuarea Cercetarii
❖ Event Correlation
❖ Grants for Startups
❖ Voice2text
❖ Interpretare
❖ Asistenta

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NLP

  • 1. Sustinerea tezei de doctorat SISTEM AUTOMAT DE ANALIZA SI PRELUCRARE SEMANTICA PENTRU TEXTE SCRISE IN LIMBA ROMANA Autor: Catalin Cosoi Coordonator: Prof. Dr. Ing. Valentin Sgarciu
  • 2. Cuprins ❖ Introducere / Motivatie ❖ Clasificarea Semantica ❖ Analiza Sentimentelor ❖ Sumarizarea ❖ Aplicativitatea ❖ Concluzii
  • 3. Motivatie ❖ Meltwater – 8000 EUR / an (5 useri, 10 cuvinte cheie) ❖ ZeList – 3000 EUR / an (5 useri, 5 cuvinte cheie) ❖ Analiza media (atat brand propriu cat si competitori) ❖ Rezultate in scadere la filtrele antispam ❖ Document clustering ❖ Online Privacy Project ❖ Cautari sau operatiuni complexe folosind limbaj natural ❖ newsrank.ro & focusfun.ro
  • 4. Clasificarea Semantica ❖ Imbunatatirea filtrarii bayesiene (2006) ❖ Document (spam) clustering (2007) ❖ newsrank.ro & focusfun.ro (2009) ❖ Monitorizare Media (2011) ❖ Analiza Semanticii Latente (LSA) ❖ Retele de Context (CNG) ❖ Regresie Logistica ❖ TF-IDF ❖ Bayes ❖ Retele Semantice ❖ Jaccard
  • 5. Clasificarea Semantica ❖ SPAM filtering using feature relevance assignment in neural networks - United States 8,131,655 ❖ Systems and Methods for Dynamically Integrating Heterogeneous Anti-Spam Filters - 8,572,184 B1 ❖ Systems and methods for electronic fraud prevention - United States 8,695,100
  • 6. Imbunatatirea filtrarii bayesiene ❖ Cosoi, A.C. ; Sgarciu, V. ; Vlad, M.S. ; Danube Adria Association for Automation & Manufacturing – ISI Proceedings ❖ Naïve Bayes Module + LinkGrammar ❖ 25 domenii stiintifice ❖ 0,5% - 25% ❖ 0,01% - 15%
  • 7. Document (spam) clustering ❖ Brevet # 8,010,614 B1 ❖ Titlu: Systems and methods for generating signatures for electronic communication classification
  • 8. Analiza Sentimentelor ❖ O multitudine de tehnici si algoritmi ❖ Subiectivitatea si zonele geografice – dificultatea analizei sentimentelor la nivel global
  • 9. Sumarizarea ❖ DEZVALUIRI din INTIMITATE. CUM isi IMPART TREBURILE CASNICE Klaus Iohannis si SOTIA SA, o GOSPODINA DESAVARSITA
  • 10. Sumarizarea MultiDocument ❖ Avand mai multe documente similare, este inlesnita si sumarizarea ❖ Cuvintele cheie si propozitiile cheie sunt mai usor de determinat
  • 11. Aplicabilitate ❖ The Romanian Blogosphere as a Social Fractal, A.C.Cosoi; B.Dumitru; V.Sgarciu; M.St.Vlad; M.Corduneanu, IAFA 2009, vol.3, pp 36-40, ISSN: 2066- 4451 ❖ The Romanian Social Fractal, AC COSOI V SGARCIU B DUMITRU, Proceedings of DAAAM 2009, Viena, Austria, 25-28 nov, pp.103-104, ISSN 1726-9679, ISBN 978-3-901509-70-4, indexata ISI Web of Knowledge
  • 13. Monitorizare Media ❖ Extragerea stirilor din ora in ora din peste 50 publicatii ❖ Gruparea Stirilor pe categorii/topicuri/subiecte ❖ Analiza Sentimentelor (pozitiv, negativ) ❖ Sumarizarea ❖ Notificarea utilizatorilor (in functie de frecventa)
  • 14. Resurse ❖ Liste de obiecte / criterii – analiza sentimentelor ❖ Expresii de concluzionare ❖ Acronime ❖ Abrevieri ❖ 2,5 Ngrams (2010 – 2014) ❖ Cod sursa pentru intreaga platforma si toti algoritmii studiati
  • 15. Continuarea Cercetarii ❖ Event Correlation ❖ Grants for Startups ❖ Voice2text ❖ Interpretare ❖ Asistenta