Sérgio Nunes

2026

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ClaimPT: A Portuguese Dataset of Annotated Claims in News Articles.

Ricardo Campos|Raquel Sequeira|Sara Nerea|Inês Cantante|Diogo Folques|Luís Filipe Cunha|João Canavilhas|António Branco|Alípio Jorge|Sérgio Nunes|Nuno Guimarães|Purificação Silvano

Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV

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CitiLink: Enhancing Municipal Transparency and Citizen Engagement Through Searchable Meeting Minutes.

Rodrigo Silva|José Pedro Evans|José Isidro|Miguel Marques|Afonso Fonseca|Ricardo Morais|João Canavilhas|Arian Pasquali|Purificação Silvano|Alípio Jorge|Nuno Guimarães|Sérgio Nunes|Ricardo Campos

Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV

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CitiLink-Summ: A Dataset of Discussion Subjects Summaries in European Portuguese Municipal Meeting Minutes.

Miguel Marques|Ana Luísa Fernandes|Ana Filipa Pacheco|Rute Rebouças|Inês Cantante|José Isidro|Luís Filipe Cunha|Alípio Jorge|Nuno Guimarães|Sérgio Nunes|António Leal|Purificação Silvano|Ricardo Campos

Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

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Insights into LLM-Based Conversational Search: A Study of Tetun-Speaking Users' Search Behavior.

Gabriel de Jesus|Sérgio Nunes

Proceedings of the 2025 International ACM SIGIR Conference on Innovative Concepts and Theories in Information Retrieval, ICTIR 2025, Padua, Italy, 18 July 2025

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Zero-Shot and Hybrid Strategies for Tetun Ad-Hoc Text Retrieval.

Gabriel de Jesus|Siddharth A. K. Singh|Sérgio Nunes|Andrew Yates

Proceedings of the 2025 International ACM SIGIR Conference on Innovative Concepts and Theories in Information Retrieval, ICTIR 2025, Padua, Italy, 18 July 2025

2020

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ECIR 2020 workshops: assessing the impact of going online.

Sérgio Nunes|Suzanne Little|Sumit Bhatia|Ludovico Boratto|Guillaume Cabanac|Ricardo Campos|Francisco M. Couto|Stefano Faralli|Ingo Frommholz|Adam Jatowt|Alípio Jorge|Mirko Marras|Philipp Mayr|Giovanni Stilo

SIGIR Forum 2020 Volume 54 Issue 1

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Army ANT: A Workbench for Innovation in Entity-Oriented Search.

José Luís Devezas|Sérgio Nunes

Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

2019

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Information Processing & Management Journal Special Issue on Narrative Extraction from Texts (Text2Story): Preface.

Alípio M. Jorge|Ricardo Campos|Adam Jatowt|Sérgio Nunes

Information Processing and Management 2019 Volume 56 Issue 5

2018

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ECIR 2018: Text2Story Workshop - Narrative Extraction from Texts.

Alípio Jorge|Ricardo Campos|Adam Jatowt|Sérgio Nunes|Conceição Rocha|João Paulo Cordeiro|Arian Pasquali|Vítor Mangaravite

SIGIR Forum 2018 Volume 52 Issue 1

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FEUP at TREC 2018 Common Core Track - Reranking for Diversity using Hypergraph-of-Entity and Document Profiling.

José Luís Devezas|Sérgio Nunes|Antonio Guillén|Yoan Gutiérrez|Rafael Muñoz

Proceedings of the Twenty-Seventh Text REtrieval Conference, TREC 2018, Gaithersburg, Maryland, USA, November 14-16, 2018

2017

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FEUP at TREC 2017 OpenSearch Track Graph-Based Models for Entity-Oriented.

José Luís Devezas|Carla Teixeira Lopes|Sérgio Nunes

Proceedings of The Twenty-Sixth Text REtrieval Conference, TREC 2017, Gaithersburg, Maryland, USA, November 15-17, 2017

2016

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Index-Based Semantic Tagging for Efficient Query Interpretation.

José Luís Devezas|Sérgio Nunes

Experimental IR Meets Multilinguality, Multimodality, and Interaction - 7th International Conference of the CLEF Association, CLEF 2016, Évora, Portugal, September 5-8, 2016, Proceedings

2015

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Summarization of changes in dynamic text collections using Latent Dirichlet Allocation model.

Manika Kar|Sérgio Nunes|Cristina Ribeiro

Information Processing and Management 2015 Volume 51 Issue 6

2012

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Studying a Personality Coreference Network in a News Stories Photo Collection.

José Luís Devezas|Filipe Coelho|Sérgio Nunes|Cristina Ribeiro

Advances in Information Retrieval - 34th European Conference on IR Research, ECIR 2012, Barcelona, Spain, April 1-5, 2012. Proceedings

2011

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Term weighting based on document revision history.

Sérgio Nunes|Cristina Ribeiro|Gabriel David

Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 12

2010

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FEUP at TREC 2010 Blog Track: Using h-index for blog ranking.

José Luís Devezas|Sérgio Nunes|Cristina Ribeiro

Proceedings of The Nineteenth Text REtrieval Conference, TREC 2010, Gaithersburg, Maryland, USA, November 16-19, 2010

2009

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FEUP at TREC 2009 Blog Track: Temporal Evidence in the Faceted Blog Distillation Task.

Sérgio Nunes|Cristina Ribeiro|Gabriel David

Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

2008

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Use of Temporal Expressions in Web Search.

Sérgio Nunes|Cristina Ribeiro|Gabriel David

Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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FEUP at TREC 2008 Blog Track: Using Temporal Evidence for Ranking and Feed Distillation.

Sérgio Nunes|Cristina Ribeiro|Gabriel David

Proceedings of The Seventeenth Text REtrieval Conference, TREC 2008, Gaithersburg, Maryland, USA, November 18-21, 2008