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Barbara Poblete

Associate Professor

University of Chile

Santiago, Chile

Applied Machine Learning, Data mining, Web data mining, Information retrieval, Privacy preserving data mining, Social network analysis

Computer Science, UNIVERSITAT POMPEU FABRA. España, 2009
Computer Science, UNIVERSIDAD DE CHILE. Chile, 2004
Computer Science, UNIVERSIDAD DE CHILE. Chile, 2001
Engineering, UNIVERSIDAD DE CHILE. Chile, 2004

Assistant Professor Full Time

UNIVERSIDAD DE CHILE

Faculty of physical science and mathematics

Santiago, Chile

2011 - At present

Researcher Full Time

Yahoo Labs

Santiago, Chile

2008 - 2011
Associate Researcher Part Time

Yahoo Labs

Santiago, Chile

2011 - 2014

Advisor of Master students (8 in total 7 graduated) : Felipe Bravo-Marquez, Mauricio Quezada Veas, Jazmine Maldonado, Ignacio Valderrama, Jorge Bahamonde, Luis Martinez, Hernán Sarmiento, Mabel Sanchez
Advisor of PhD students (8 in total, 4 graduated): Teresa Bracamonte, Vanessa Peña, José Miguel Herrera, Mauricio Quezada, Mabel Sanchez, Hernán Sarmiento, Juglar Diaz, Henry Rosales
Courses: Introduction to data mining, Information Retrieval, Introduction to Programing, Web of Data.

100 Líderes Jóvenes

DIARIO EL MERCURIO

Chile, 2013

Chosen among the 100 young leaders of the country (Chile), under the age of 35.
ALFA scholarship

UNIVERSITAT POMPEU FABRA

España, 2005

Full scholarship for Phd studies
Google Latin American Research Award

Google Inc.

Brasil, 2019

Google Latin America Research Award 2019 (Google LARA), which is an unrestricted gift renewable up to 4-years for Latin American Academics and their students to fund cutting-edge research with social benefit. This is a highly selective research grant provided by Google LatAm yearly. This year there were 670 applications from all of Latin America, with only 25 awarded, only two of those awards went to Chilean researchers and only 6 to female academics.
Yahoo Patent Milestone Award

Yahoo Inc

Estados Unidos, 2017

At Yahoo I filled 13 patents and so far 7 of them have been awarded. I was given the Yahoo Patent Milestone Award. This shows academic research with direct industrial impact. Patents listed below (authors omitted for brevity) - “Lightning search aggregate”. 2017? US Patent 9,594,835 - “Methods for web site analysis”. ?2014. ?US Patent 8,751,632 - “Classifying documents using implicit feedback and query patterns”. 2014. ?US Patent 8,645,369 - “Lightning search bookmark”. 2013. ?US Patent 20,130,013,628 - “Method for storing bookmarks for search results from previously submitted search queries by a user and storing links to selected documents by the user”. 2012. ?US Patent 8,290,944 - “Method and system for generating a hyperlink-click graph”. 2011.?US Patent 7,945,565 - “User query data mining and related techniques”?. 2009.?US Patent 7,617,208


An integrated model for textual social media data with spatio-temporal dimensions Diaz J.; Poblete B.; Bravo-Marquez, F Article ISI SCOPUS Information Processing and Management (2020)
Fine-Grained Entity Linking Rosales-Mendez, Henry; Hogan, Aidan; Poblete, Barbara Article ISI JOURNAL OF WEB SEMANTICS (2020)
Hate speech detection is not as easy as you may think: A closer look at model validation (extended version) Arango, Aymé; Pérez, Jorge; Poblete, Barbara Article Information Systems (2020)
Minding the AI Gap in LATAM Poblete, Barbara; Perez, Jorge Article ISI COMMUNICATIONS OF THE ACM (2020)
Social QA in non-CQA platforms Herrera, Jose; Parra, Denis; Poblete, Barbara Article ISI SCOPUS FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE (2020)
Nowcasting earthquake damages with Twitter Mendoza, Marcelo.; Poblete, Barbara; Valderrama, Ignacio Article ISI SCOPUS EPJ DATA SCIENCE (2019)
Power structure in Chilean news media Bahamonde, Jorge; Bollen, Johan; Elejalde, Erick; Ferres, Leo; Poblete, Barbara Article PLOS ONE (2018)
Robust Detection of Extreme Events Using Twitter=> Worldwide Earthquake Monitoring Poblete, Barbara; Guzman, Jheser; Maldonado, Jazmine; Tobar, Felipe Article IEEE TRANSACTIONS ON MULTIMEDIA (2018)
Gaining historical and international relations insights from social media=> spatio-temporal real-world news analysis using Twitter Pena-Araya, V; Quezada, M; Poblete, B; Parra, D Article EPJ DATA SCIENCE (2017)
Prediction and Characterization of High-Activity Events in Social Media Triggered by Real-World News Kalyanam, J; Quezada, M; Poblete, B; Lanckriet, G Article PLOS ONE (2016)
Prediction and Characterization of High-Activity Events in Social Media Triggered by Real-World News Kalyanam, Janani; Quezada, Mauricio; Poblete, Barbara; Lanckriet, Gert Article PLoS One (2016)
Predicting information credibility in time-sensitive social media Castillo C.; Mendoza M.; Poblete, B. Article ISI SCOPUS Internet Research (2013)
Privacy-Preserving Query Log Mining for Business Confidentiality Protection Poblete, B.; Spiliopoulou M.; Baeza-Yates, R Article ISI SCOPUS ACM Transactions on the Web (2010)
A mining model of consultations for content design and structure of a Web site Un modelo de minería de consultas para el diseño del contenido y la estructura de un sitio Web Baeza-Yates, R; Poblete, B. Article INTELIGENCIA ARTIFICIAL-IBEROAMERICAL JOURNAL OF ARTIFICIAL INTELLIGENCE (2006)
Dynamics of the Chilean web structure Baeza-Yates, R; Poblete, B. Article ISI SCOPUS COMPUTER NETWORKS (2006)
Meta-level sentiment models for big social data analysis Felipe Bravo-Marquez; Marcelo Mendoza; Barbara Poblete Article ISI (In Press) KNOWLEDGE-BASED SYSTEMS


Galean: Visualization of geolocated news events from social media Peña-Araya V.; Quezada M.; Poblete, B. ConferencePaper SCOPUS SIGIR 2015 - Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval (2015)
Location-aware model for news events in social media Quezada M.; Peña-Araya V.; Poblete, B. ConferencePaper SCOPUS SIGIR 2015 - Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval (2015)
Retrieving relevant conversations for Q&A on Twitter Herrera J.M.; Parra, D; Poblete, B. ConferencePaper SCOPUS CEUR Workshop Proceedings (2015)
Sentiment-based user profiles in microblogging platforms Gutierrez F.J.; Poblete, B. ConferencePaper SCOPUS HT 2015 - Proceedings of the 26th ACM Conference on Hypertext and Social Media (2015)
#Santiago is not #Chile, or is it? A model to normalize social media impact Graells-Garrido, E; Poblete, B. ConferencePaper SCOPUS ACM International Conference Proceeding Series (2013)
Combining strengths, emotions and polarities for boosting Twitter sentiment analysis Bravo-Marquez, F; Mendoza M.; Poblete, B. ConferencePaper SCOPUS TEI 2020 - Proceedings of the 14th International Conference on Tangible, Embedded, and Embodied Interaction (2013)
Long-memory time series ensembles for concept shift detection Mendoza M.; Bravo-Marquez, F; Poblete, B.; Gayo-Avello D. ConferencePaper SCOPUS TEI 2020 - Proceedings of the 14th International Conference on Tangible, Embedded, and Embodied Interaction (2013)
Multimedia information retrieval on the social web Bracamonte, T; Poblete, B. ConferencePaper SCOPUS WWW 2013 Companion - Proceedings of the 22nd International Conference on World Wide Web (2013)
On-line relevant anomaly detection in the Twitter stream: An efficient bursty keyword detection model Guzman J.; Poblete, B. ConferencePaper SCOPUS Proceedings of the ACM SIGKDD Workshop on Outlier Detection and Description, ODD 2013 (2013)
Understanding Real-World Events via Multimedia Summaries Based on Social Indicators Quezada M.; Poblete, B. ConferencePaper ISI BIO-INSPIRED SYSTEMS AND APPLICATIONS: FROM ROBOTICS TO AMBIENT INTELLIGENCE, PT II (2013)
Extracting interesting association rules from toolbar data Bordino I.; Donato, D.; Poblete, B. ConferencePaper SCOPUS ACM International Conference Proceeding Series (2012)
Opinion dynamics of elections in twitter Bravo-Marquez, F; Gayo-Avello D.; Mendoza M.; Poblete, B. ConferencePaper SCOPUS Proceedings - 2012 8th Latin American Web Congress, LA-WEB 2012 (2012)
Automatic image tagging through information propagation in a query log based graph structure Bracamonte, T; Poblete, B. ConferencePaper 1604-2004: SUPERNOVAE AS COSMOLOGICAL LIGHTHOUSES (2011)
Do all birds tweet the same? Characterizing twitter around the world Poblete, B.; Mendoza M.; García R; Jaimes A. ConferencePaper 1604-2004: SUPERNOVAE AS COSMOLOGICAL LIGHTHOUSES (2011)
Information credibility on Twitter Castillo C.; Mendoza M.; Poblete, B. ConferencePaper 1604-2004: SUPERNOVAE AS COSMOLOGICAL LIGHTHOUSES (2011)
Query-sets ++: A scalable approach for modeling web sites Poblete, B.; Spiliopoulou M.; Mendoza M. ConferencePaper BIO-INSPIRED SYSTEMS AND APPLICATIONS: FROM ROBOTICS TO AMBIENT INTELLIGENCE, PT II (2011)
Query-Sets(++): A Scalable Approach for Modeling Web Sites Poblete, B.; Spiliopoulou M.; Mendoza M. ConferencePaper ISI BIO-INSPIRED SYSTEMS AND APPLICATIONS: FROM ROBOTICS TO AMBIENT INTELLIGENCE, PT II (2011)
Query-sets++: A scalable approach for modeling web sites Poblete, B.; Spiliopoulou M.; Mendoza M. ConferencePaper SCOPUS Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (2011)
Learning to Distribute Queries into Web Search Nodes Mendoza M.; Marin M.; Ferrarotti F.; Poblete, B. ConferencePaper BIO-INSPIRED SYSTEMS AND APPLICATIONS: FROM ROBOTICS TO AMBIENT INTELLIGENCE, PT II (2010)
Twitter under crisis: Can we trust what we RT? Mendoza M.; Poblete, B.; Castillo C. ConferencePaper SCOPUS SOMA 2010 - Proceedings of the 1st Workshop on Social Media Analytics (2010)
Visual-semantic graphs: Using queries to reduce the semantic gap in Web image retrieval Poblete, B.; Mendoza M.; Bustos, B; Barrios J.M. ConferencePaper 1604-2004: SUPERNOVAE AS COSMOLOGICAL LIGHTHOUSES (2010)
A website mining model centered on user queries Baeza-Yates, R; Poblete, B. ConferencePaper Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (2006)
Evolution of the Chilean Web structure composition Baeza-Yates, R; Poblete, B. ConferencePaper FIRST LATIN AMERICAN WEB CONGRESS, PROCEEDINGS (2003)


Classifying documents using implicit feedback and query patterns Poblete, Barbara; Baeza-Yates, Ricardo Patent grant patent (2014)
Methods for website analysis Poblete, Barbara; Baeza-Yates, Ricardo Patent grant patent (2014)
LIGHTNING SEARCH BOOKMARK Vanessa Murdock; Luis Garcia; Barbara Poblete; Vassilis Plachouras Patent grant patent (2013)
Method and system for classifying web sites using query-based web site models Poblete, Barbara; Spiliopoulou, Maria; Mendoza, Marcelo. Patent patent pending (2012)
Method for storing bookmarks for search results from previously submitted search queries by a user and storing links to selected documents by the user Murdock, Vanessa; Garcia, Luis; Poblete, Barbara; Plachouras, Vassilis Patent grant patent (2012)
Method and system for generating a hyperlink-click graph Poblete, Barbara; Gionis, Aristides Patent grant patent (2011)
Lightning search aggregate Murdock, Vanessa; Garcia, Luis; Poblete, Barbara; Plachouras, Vassilis Patent patent pending (2010)
User query data mining and related techniques Baeza-Yates, Ricardo Alberto; Poblete, Barbara Patent grant patent (2009)


Observatorio digital de delincuencia en Chile=> un sistema inteligente de apoyo a la industria automotriz chilena, en el robo de vehículos y accesorios FONDEF (ID16I10222) Proyecto 2016-2018 Coinvestigador(a)
Impacto geográfico de titulares las redes sociales chilenas FONDECYT (PLU140001) Proyecto 2015-2016 Investigador(a)
Núcleo Milenio Centro de Investigación de la Web Semántica Milenio (CIWS2012) Proyecto 2013-2016 Investigador(a)
AUTOMATIC KNOWLEDGE EXTRACTION FROM SOCIAL MEDIA DATA AND USER-GENERATED CONTENTS FOR IMPROVING THE WEB FONDECYT (11121511) Proyecto 2012-2015 Inv. Responsable
Automatic Knowledge Extraction from Social Media Data and User-Generated Contents for Improving the Web Poblete, Barbara Proyecto (2012)
Observatorios Escalables de La Web FONDEF (D09I-1185) Proyecto 2012-2014 Investigador(a)
Extracción automática de conocimientos a partir de datos de medios sociales y contenidos generados por usuarios para mejorar la Web Poblete, Barbara Proyecto (0)