Gustavo Penha, Claudia Hauff (2020), Challenges in the evaluation of conversational search systems, G. Di Fabbrizio, S. Kallumadi, U. Porwal, T. Taula (Eds.), In KDD 2020 Workshop on Conversational Systems Towards Mainstream Adoption, KDD-Converse 2020 Volume 2666.

Gustavo Penha, Claudia Hauff (2020), Curriculum Learning Strategies for IR: An Empirical Study on Conversation Response Ranking, Joemon M. Jose, Emine Yilmaz, João Magalhães, Flávio Martins, Pablo Castells, Nicola Ferro, Mário J. Silva (Eds.), In Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020 p.699-713, Springer.

Gustavo Penha, Rodrygo L.T. Santos (2020), Exploiting Performance Estimates for Augmenting Recommendation Ensembles, In RecSys 2020 - 14th ACM Conference on Recommender Systems p.111-119, Association for Computing Machinery (ACM).

Gustavo Penha, Claudia Hauff (2020), What does BERT know about books, movies and music? Probing BERT for Conversational Recommendation, In RecSys 2020 - 14th ACM Conference on Recommender Systems p.388-397, Association for Computing Machinery (ACM).

Gustavo Penha, Raphael Campos, Sérgio Canuto, Marcos André Gonçalves, Rodrygo L.T. Santos (2019), Document performance prediction for automatic text classification, Leif Azzopardi, Benno Stein, Norbert Fuhr, Claudia Hauff, Philipp Mayr, Djoerd Hiemstra (Eds.), In Advances in Information Retrieval p.132-139, Springer.

Bruno L. Pereira, Alberto Ueda, Gustavo Penha, Rodrygo L.T. Santos, Nivio Ziviani (2019), Online learning to rank for sequential music recommendation, In RecSys 2019 - 13th ACM Conference on Recommender Systems p.237-245, Association for Computing Machinery (ACM).