El Grupo de Investigación en Gestión de Conocimiento y Recuperación de Información estudia, diseña y evalúa métodos orientados a resolver problemas dentro de las áreas de procesamiento de lenguaje natural, aprendizaje automático y recuperación de la información. El objetivo es desarrollar herramientas inteligentes para facilitar la extracción, refinamiento y organización de conocimiento en diferentes dominios. Las principales líneas de investigación incluyen: la recuperación contextualizada de la información, la extracción de información, el aprendizaje causal y la inferencia individualizada.
Miembros del Grupo
Director: Ana G. Maguitman
Investigadores
- Rocío L. Cecchini – ICIC (UNS-CONICET)
- Carlos I. Chesñevar – ICIC (UNS-CONICET)
- Fernando Delbianco – INMABB (UNS-CONICET)
- Elsa C. Estevez – ICIC (UNS-CONICET)
- Carlos M. Lorenzetti – ICIC (UNS-CONICET)
- Ana G. Maguitman – ICIC (UNS-CONICET)
- Ignacio Ponzoni – ICIC (UNS-CONICET)
- Axel J. Soto – ICIC (UNS-CONICET)
- Fernando Tohmé – INMABB (UNS-CONICET)
Colaboradores
- Cecilia Baggio – ICIC (UNS-CONICET)
- Gabriela A. Diaz – ICIC (UNS-CONICET)
Becarios
- Martina Cesca – ICIC (UNS-CONICET)
- Lázaro Gibert García – ICIC (UNS-CONICET)
- Laureano Ramirez – ICIC (UNS-CONICET)
- María Arce Pistone – ICIC (UNS-CONICET)
Miembros Anteriores
- Cristian Briguez
- Rocío Hubert
- Mariano Maisonnave
- Ana Lucía Nicolini
- Eduardo Xamena
Publicaciones seleccionadas
2026
- Article Modeling polarization in public opinion through LLM-synthesized arguments and stance trees PeerJ Computer Science DOI:10.7717/peerj-cs.3906
2025
- Article A methodological approach for inferring causal relationships from opinions and news-derived events with an application to climate change PeerJ Computer Science DOI:10.7717/peerj-cs.2964
- Chapter Assessing Disease Comorbidity in Hospital Patients through Machine Learning and Network Analysis Techniques Intelligent systems reference library DOI:10.1007/978-3-031-95044-5_3
- Misc Potenciando la e-deliberación inclusiva mediante árboles de posturas y árboles dialécticos El Servicio de Difusión de la Creación Intelectual (National University of La Plata)
- Chapter Harnessing Artificial Intelligence and Visual Analytics for Modeling Government-Citizen Interaction in Argentinean Institutions Public administration and information technology DOI:10.1007/978-3-031-87623-3_9
2024
- Article Learning causality structures from electricity demand data Energy Systems DOI:10.1007/s12667-024-00684-6
- Article Polviz: Assessing Opinion Polarization in Social Media through Visual Analytics and Argumentation Proceedings of the 17th International Conference on Theory and Practice of Electronic Governance DOI:10.1145/3680127.3680212
2023
- Article Multi-objective genetic programming strategies for topic-based search with a focus on diversity and global recall PeerJ Computer Science DOI:10.7717/peerj-cs.1710
- Article Assessing causality among topics and sentiments: The case of the G20 discussion on Twitter Journal of Information Science DOI:10.1177/01655515231160034
- Chapter QuOTeS: Query-Oriented Technical Summarization Lecture notes in computer science DOI:10.1007/978-3-031-41682-8_7
- Article TwiSP: a framework for exploring polarized issues in Twitter DOI:10.1145/3614321.3614324
2022
- Article Post-OCR Document Correction with Large Ensembles of Character Sequence-to-Sequence Models Proceedings of the AAAI Conference on Artificial Intelligence DOI:10.1609/aaai.v36i10.21369
- Article Causal graph extraction from news: a comparative study of time-series causality learning techniques PeerJ Computer Science DOI:10.7717/peerj-cs.1066
- Article Detecting ongoing events using contextual word and sentence embeddings Expert Systems with Applications DOI:10.1016/j.eswa.2022.118257
- Article Stance Trees: A Novel Approach for Assessing Politically Polarized Issues in Twitter DOI:10.1145/3560107.3560296
- Chapter Computational Argumentation for Supporting Learning Processes: Applications and Challenges Learning and analytics in intelligent systems DOI:10.1007/978-3-031-04662-9_9
2021
- Article Structural analysis of relevance propagation models Knowledge-Based Systems DOI:10.1016/j.knosys.2021.107563
- Preprint Post-OCR Document Correction with large Ensembles of Character Sequence-to-Sequence Models arXiv (Cornell University) DOI:10.48550/arxiv.2109.06264
- Preprint Post-OCR Document Correction with large Ensembles of Character Sequence Models. arXiv (Cornell University)
2020
- Article A first approach towards integrating computational argumentation in cognitive cities DOI:10.1145/3428502.3428506
- Article Assessing Causality Structures learned from Digital Text Media DOI:10.1145/3395027.3419594
- Article Language modeling tools for massive historical OCR post-processing El Servicio de Difusión de la Creación Intelectual (National University of La Plata)
- Article A supervised term-weighting technique for topic-based retrieval arXiv (Cornell University)
- Article Analyzing and Visualizing Government-Citizen Interactions on Twitter to Support Public Policy-making Digital Government Research and Practice DOI:10.1145/3360001
2019
- Article A Flexible Supervised Term-Weighting Technique and its Application to Variable Extraction and Information Retrieval INTELIGENCIA ARTIFICIAL DOI:10.4114/intartif.vol22iss63pp61-80
- Article Multi-Objective GP Strategies for Topical Search Integrating Wikipedia Concepts Proceedings of the ACM Symposium on Document Engineering 2019 DOI:10.1145/3342558.3345402
- Article Intelligent query processing in P2P networks: Semantic issues and routing algorithms Computer Science and Information Systems DOI:10.2298/csis180411002n
2018
- Article Searching in the Context of a Task: A Review of Methods and Tools CLEI electronic journal DOI:10.19153/cleiej.21.1.1
- Article A Supervised Term-Weighting Method and its Application to Variable Extraction from Digital Media El Servicio de Difusión de la Creación Intelectual (National University of La Plata)
2017
- Article Topic relevance and diversity in information retrieval from large datasets: A multi-objective evolutionary algorithm approach Applied Soft Computing DOI:10.1016/j.asoc.2017.11.016
- Article A Structural Analysis of topic ontologies Information Sciences DOI:10.1016/j.ins.2017.08.081
2016
- Article SciELO suggester: An intelligent support tool for cataloging library resources Library & Information Science Research DOI:10.1016/j.lisr.2016.01.001
- Article Mining for Topics to Suggest Knowledge Model Extensions ACM Transactions on Knowledge Discovery from Data DOI:10.1145/2997657
- Article An Entropy-Based Approach for Preserving Diversity in Evolutionary Topical Search El Servicio de Difusión de la Creación Intelectual (National University of La Plata)
- Article Software platform for the statistical validation of structural partitioning methods Computers & Chemical Engineering DOI:10.1016/j.compchemeng.2016.01.007
- Article Intelligent algorithms for improving communication patterns in thematic P2P search Information Processing & Management DOI:10.1016/j.ipm.2016.12.001
2015
- Article Integrating argumentation and sentiment analysis for mining opinions from Twitter AI Communications DOI:10.3233/aic-140627
- Chapter ArgP2P: An Argumentative Approach for Intelligent Query Routing in P2P Networks Lecture notes in computer science DOI:10.1007/978-3-319-28460-6_12
2014
- Article Argument-based mixed recommenders and their application to movie suggestion Expert Systems with Applications DOI:10.1016/j.eswa.2014.03.046
- Chapter Modeling Video Activity with Dynamic Phrases and Its Application to Action Recognition in Tennis Videos Lecture notes in computer science DOI:10.1007/978-3-319-12568-8_110
- Article Empowering citizens through opinion mining from twitter-based arguments DOI:10.1145/2691195.2691282
2013
- Article A THEORETICAL FRAMEWORK FOR TRUST-BASED NEWS RECOMMENDER SYSTEMS AND ITS IMPLEMENTATION USING DEFEASIBLE ARGUMENTATION International Journal of Artificial Intelligence Tools DOI:10.1142/s0218213013500218
- Chapter A First Approach to Mining Opinions as Multisets through Argumentation Lecture notes in computer science DOI:10.1007/978-3-642-39860-5_15
- Article A study of relevance propagation in large topic ontologies Journal of the American Society for Information Science and Technology DOI:10.1002/asi.22925
2012
- Article An Argument-based Approach to Mining Opinions from Twitter.
- Article Integrating argumentation technologies and context-based search for intelligent processing of citizens' opinion in social media DOI:10.1145/2463728.2463762
- Chapter Towards an Argument-based Music Recommender System Frontiers in artificial intelligence and applications DOI:10.3233/978-1-61499-111-3-83
- Article Empowering an E-Government Platform Through Twitter-Based Arguments Redalyc (Universidad Autónoma del Estado de México)
2011
- Article A Semantic Framework for Evaluating Topical Search Methods CLEI electronic journal DOI:10.19153/cleiej.14.1.2