Chrysoula Zerva

Academic position:	Assistant Professor
Joining date:	16-02-2021
Roles in IT:	Researcher
Thematic Line:	Information and Data Sciences
Group:	Pattern and Image Analysis – Lx

IT – Lisboa
Instituto Superior Técnico - Torre Norte - Piso 10
Av. Rovisco Pais, 1
1049 - 001 Lisboa
Tel: +351 21 841 84 54
Email: Send Email

https://www.orcid.org/0000-0002-4031-9492

http://www.cienciavitae.pt/4012-67B2-0616

By Authors | By Institutions | By Group

27-10-2025

Project Snapshot | NextGenAI: Centre for Responsible AI

Centre for Responsible AI's (CRAI) overall mission is to revolutionize the AI landscape responsibly and to develop the next generation of AI products that are transparent, fair, and trustworthy.

17-01-2024

Project Snapshot | NextGenAI - Center for Responsible AI

Centre for Responsible AI overall mission is to revolutionize the AI landscape responsibly and to develop the next generation of AI products that are transparent, fair, and trustworthy.

06-07-2023

Center for Responsible AI presents its first outcomes in healthcare sector

The Center for Responsible AI (CRAI) aims to provide regulation for artificial intelligence (AI) technologies.

18-05-2023

Instituto de Telecomunicações in the consortium of the new Center for Responsible AI

The new Center for Responsible AI aims to define the working method for the development of responsible artificial intelligence in Portugal.

Scientific Achievements

Degrees

PhD, The University of Manchester, 08-01-2019

Academic Activities

2Lecture courses

Deep Learning, Instituto Superior Técnico, Mestrado em Engenharia Informática e de Computadores; Mestrado Integrado em Engenharia Electrotécnica e de Computadores

Artificial Intelligence, Instituto Superior Técnico, LEBiol21 LEIC-A Min-EG Min-I Min-IA

3Supervision of PhD theses

Publications

2Papers in Journals

C Zerva, A. Martins, Conformalizing Machine Translation Evaluation, Transactions of the Association for Computational Linguistics, Vol. 12, No., pp. 1460 - 1478, November, 2024,
| Abstract | BibTex
M. Campos, A. F. Farinhas, C Zerva, M. A. T. Figueiredo, A. Martins, Conformal Prediction for Natural Language Processing: A Survey, Transactions of the Association for Computational Linguistics, Vol. 12, No., pp. 1497 - 1516, July, 2024,
| Abstract | BibTex

23Papers in Conferences

E. Zaranis, A. F. Farinhas, S. Santos, B. C. Canaverde, M. Moura Ramos, A. S. Surikuchi, A. V. Viveiros, B. Liao, E. Bueno-Benito, N. Sivakumaran, P. Vasylenko, S. Yu, S. S. Sannigrahi, W. Mohammed, B. Peters, D. Villegas, E. Stengel-Eskin, G. A. Attanasio, J. Yoon, S. Frank, A. Suglia, C Zerva, D. Elliott, M. Dimiccoli, M. Bansal, O. Lanz, R. Bernardi, R. Fernández, S. Pezzelle, V. Niculae, A. Martins, How Well Do Vision-Language Models Understand Movies?, Empirical Methods in Language Processing - EMNLP, Budapest, Hungary, Vol., pp. -, October, 2026,
| Abstract | Full text (PDF 26 MBs) | BibTex
G. Gomes, B. Martins, C Zerva, Evaluation of Multilingual Image Captioning: How far can we get with CLIP models?, Annual Conference of the North American Chapter of the Association for Computational Linguistics NAACL, Albuquerque, New Mexico, United States, Vol., pp. -, April, 2025,
| Abstract | Full text (PDF 4 MBs) | BibTex
J. Mire, Z. Aysola, D. Chechelnitsky, N. Deas, C Zerva, M. Sap, Rejected Dialects: Biases Against African American Language in Reward Models, Annual Conference of the North American Chapter of the Association for Computational Linguistics NAACL, Albuquerque, New Mexico, United States, April, 2025,
| Abstract | BibTex
C Zerva, F. Blain, J. G. Sousa, D. Kanojia, S. Deoghar, N. Guerreiro, G. A. Attanasio, R. Rei, C. Orasan, M. Negri, M. Turchi, R. Chatterjee, P. Bhattacharyya, M. Freitag, A. Martins, Findings of the Quality Estimation Shared Task at WMT 2024 Are LLMs Closing the Gap in QE?, Conference on Machine Translation WMT, Miami, United States, Vol., pp. -, November, 2024,
| Abstract | BibTex
M. Freitag, N. Mathur, D. Deutsch, C. Lo, E. Avramidis, R. Rei, B. Thompson, T. Kocmi, F. Blain, J. Wang, D. Adelani, M. Buchicchio, C Zerva, A. Lavie, Are LLMs breaking MT metrics? results of the WMT24 metrics shared task, Conference on Machine Translation WMT, Miami, United States, Vol., pp. -, November, 2024,
| Abstract | BibTex
K. Thomas, G. F. Filandrianos, M. Lymperaiou, C Zerva, G. Stamou, ”I Never Said That”: A dataset, taxonomy and baselines on response clarity classification, Empirical Methods in Language Processing - EMNLP, Miami, United States, Vol., pp. -, November, 2024,
| Abstract | Full text (PDF 2 MBs) | BibTex
A. F. Farinhas, D. Ulmer, C Zerva, A. Martins, Non-Exchangeable Conformal Risk Control, International Conference on Learning Representations ICLR, Vienna, Austria, Vol., pp. -, May, 2024,
| Abstract | BibTex
D. Ulmer, C Zerva, A. Martins, Non-Exchangeable Conformal Language Generation with Nearest Neighbors, EACL: Conference of the European Chapter of the Association for Computational Linguistics EACL, Valetta, Malta, Vol., pp. -, March, 2024,
| Abstract | BibTex
F. Blain, C Zerva, R. Rei, N. Guerreiro, D. Kanojia, J. G. Sousa, B. Silva, T. Vaz, Y. Jinxuan, F. Azadi, C. Orasan, A. Martins, Findings of the WMT 2023 Shared Task on Quality Estimation, Conference on Machine Translation WMT, Singapore, Singapore, Vol., pp. -, December, 2023,
| Abstract | BibTex
M. Freitag, N. Mathur, C. Lo, E. Avramidis, R. Rei, B. Thompson, T. Kocmi, F. Blain, D. Deutsch, C. Stuart, C Zerva, S. Castilho, A. Lavie, G. Foster, Results of WMT23 Metrics Shared Task: Metrics might be Guilty but References are not Innocent, Conference on Machine Translation WMT, Singapore, Singapore, December, 2023 | BibTex
S. Honda, P. Fernandes, C Zerva, Context-aware Neural Machine Translation for English-Japanese Business Scene Dialogues, Machine Translation Summit MT Summit, Macau, China, Vol., pp. -, September, 2023,
| Abstract | BibTex
G. F. Filandrianos, E. D. Dervakos, O. Menis Mastromichalakis, C Zerva, G. Stamou, Counterfactuals of Counterfactuals: a back-translation-inspired approach to analyse counterfactual editors, Annual Meeting of the Association for Computational Linguistics - ACL, Toronto, Canada, Vol., pp. -, July, 2023,
| Abstract | Full text (PDF 876 KBs) | BibTex
T. Glushkova, C Zerva, A. Martins, BLEU Meets COMET: Combining Lexical and Neural Metrics Towards Robust Machine Translation Evaluation, Conference of the European Association for Machine Translation, Tampere, Finland, June, 2023,
| Abstract | Full text (PDF 305 KBs) | BibTex
C Zerva, T. Glushkova, R. Rei, A. Martins, Disentangling Uncertainty in Machine Translation Evaluation, Empirical Methods in Language Processing - EMNLP, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | Full text (PDF 824 KBs) | BibTex
R. Rei, M. V. T. Treviso, C Zerva, N. Guerreiro, A. C. Farinha, C. M. Maroti, J.M. Sousa, T. Glushkova, D. M. A. Alves, A. Lavie, L. C. Coheur, A. Martins, CometKiwi: IST-Unbabel 2022 Submission for the Quality Estimation Shared Task, Conference on Machine Translation WMT, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | BibTex
R. Rei, J. G. Sousa, D. M. A. Alves, C Zerva, A. C. Farinha, T. Glushkova, A. Lavie, L. C. Coheur, A. Martins, COMET-22: Unbabel-IST 2022 submission for the metrics shared task, Conference on Machine Translation WMT, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | BibTex
C Zerva, F. Blain, R. Rei, P. Lertvittayakumjorn, J. G. Sousa, S. Eger, D. Kanojia, D. A. Alves, C. Orasan, M. Fomicheva, A. Martins, L. Specia, Findings of the wmt 2022 shared task on quality estimation, Conference on Machine Translation WMT, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | BibTex
M. Fomicheva, S. Sun, E.F. Fonseca, C Zerva, F. Blain, V. Chaudhary, F. G. Guzmán, N. L. Lopatina, L. Specia, A. Martins, MLQE-PE: A Multilingual Quality Estimation and Post-Editing Dataset, European Language Resources Association (ELRA) International Conference on Language Resources and Evaluation - LREC, Marseille, France, Vol., pp. -, June, 2022,
| Abstract | Full text (PDF 408 KBs) | BibTex
J. V. Vasilakes, C Zerva, M. M. Miwa, S. A. Ananiadou, Learning Disentangled Representations of Negation and Uncertainty, Annual Meeting of the Association for Computational Linguistics - ACL, Dublin, Ireland, Vol., pp. -, May, 2022,
| Abstract | Full text (PDF 868 KBs) | BibTex
T. Glushkova, C Zerva, R. Rei, A. Martins, Uncertainty-Aware Machine Translation Evaluation, Empirical Methods in Language Processing - EMNLP, Punta Cana, Dominican Republic, November, 2021,
| Abstract | Full text (PDF 656 KBs) | BibTex
C Zerva, D. Stigt, R. Rei, A. C. Farinha, P. G. Ramos, J. G. de Souza, T. Glushkova, M. Vera, F. Kepler, A. Martins, IST-Unbabel 2021 Submission for the Quality Estimation Shared Task, Conference on Machine Translation WMT, Conference online, November, 2021,
| Abstract | Full text (PDF 339 KBs) | BibTex
R. Rei, A. C. Farinha, C Zerva, D. Stigt, C. Stuart, P. G. Ramos, T. Glushkova, A. Martins, A. Lavie, Are References Really Needed? Unbabel-IST 2021 Submission for the Metrics Shared Task, Conference on Machine Translation WMT, Conference online, November, 2021,
| Abstract | Full text (PDF 245 KBs) | BibTex
L. Specia, F. Blain, M. Fomicheva, C Zerva, Z. Li, V. Chaudhary, A. Martins, Findings of the WMT 2021 Shared Task on Quality Estimation, Conference on Machine Translation WMT, Conference online, November, 2021,
| Abstract | Full text (PDF 1 MB) | BibTex

Projects

Closed Projects4

Acronym	Name	Funding Agency	Start date	Ending date
DeepSPIN	DeepSPIN	EU/H2020	01-02-2018	01-02-2023
NextGenAI	NextGenAI - Center for Responsible AI	IAPMEI	01-10-2021	30-06-2026
OptiGov	OptiGov: Leveraging AI for Process Efficiency in Public Administration	FCT	01-02-2025	31-01-2026
UTTER	Unified Transcription and Translation for Extended Reality	EU	01-10-2022	30-09-2025

Related UN SDG

Activities from this researcher fall under the following United Nations Strategic Development Goals (SDGs):

Name	Type	Set by	Duration
`ASP.NET_SessionId`	Cookie	Instituto de Telecomunicações	Session (deleted when you close the browser)
`it_cookie_consent`	Cookie	Instituto de Telecomunicações	12 months

Name	Type	Set by	Duration
`_ga`	Cookie	Google Analytics	13 months
`_ga_1P84PH2BSW`	Cookie	Google Analytics	13 months

Name	Type	Set by	Duration
`VISITOR_INFO1_LIVE`	Cookie	YouTube (Google)	6 months
`VISITOR_PRIVACY_METADATA`	Cookie	YouTube (Google)	6 months
`YSC`	Cookie	YouTube (Google)	Session (deleted when you close the browser)
`__Secure-ROLLOUT_TOKEN`	Cookie	YouTube (Google)	6 months
`lastExternalReferrer`	Local storage	YouTube (Google)	Until you clear your browser data
`lastExternalReferrerTime`	Local storage	YouTube (Google)	Until you clear your browser data
`yt-remote-* / unique identifier`	Local storage	YouTube (Google)	Until you clear your browser data
`NID and other Google cookies`	Cookie	Google Maps	Up to 6 months

Chrysoula Zerva

Chrysoula Zerva

27-10-2025

Project Snapshot | NextGenAI: Centre for Responsible AI

17-01-2024

Project Snapshot | NextGenAI - Center for Responsible AI

06-07-2023

Center for Responsible AI presents its first outcomes in healthcare sector

18-05-2023

Instituto de Telecomunicações in the consortium of the new Center for Responsible AI

Scientific Achievements

As Supervisor

As Co-supervisor

As Supervisor

As Supervisor

Closed Projects4