Chief Research Scientist

Pierre Lison

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  • Chief Research Scientist at Norsk Regnesentral
  • Adjunct Associate Professor at the University of Oslo.

About

My main research interests are in natural language processing (NLP) and machine learning, most specifically the training, alignment, and evaluation of Large Language Models (LLMs) along with their deployment in various applications. Over my research career, I’ve worked on topics such as spoken dialogue systems, large-scale information extraction, data privacy, neural machine translation and human-robot interaction. I’m particularly interested in research topics at the intersection between NLP and other fields, from natural to social sciences. I’m also involved in several innovation-focused R&D projects looking at the use of LLMs and machine learning to solve practical problems in the public or private sector. 

Background

I’m originally from Belgium and graduated from the University of Louvain in 2006 in Computer Science & Engineering. Becoming increasingly interested by the intersection of computer science and linguistics, I moved to Saarbrücken (Germany) to pursue a master degree in Language Science & Technology. I graduated in 2008 and went on to work as a researcher at the German Research Centre for Artificial Intelligence (DFKI), where I was involved in several EU-funded projects on the development of dialogue systems for human-robot interaction. In 2011, I relocated to Norway to embark on a PhD in the Language Technology Group of the University of Oslo. In 2014, I defended my PhD thesis on probabilistic approaches to dialogue management and worked for two more years as a Postdoctoral Research Fellow within the same group on dialogue modelling for statistical machine translation. 

In 2016, I joined the Norwegian Computing Center (Norsk Regnesentral) as research scientist, where I work on various R&D projects related to natural language processing and machine learning. Two of my most recent projects are CLEANUP, which sought to develop new, data-driven methods for removing personal information from text data and GraphDial, which focused on dialogue management and investigated the use of knowledge graphs to represent the dialogue state of rich conversational domains. Other research projects I am / have been involved with include SAFERS (speech analytics for emergency response services), DialMT (dialogue modelling for machine translation), AICOM (linguistic analysis of human-LLM interactions), Oslo Analytics and most recently CyberRisk (cyber-threat intelligence and risk management).

In addition to my main position as Chief Research Scientist at NR, I also have an adjunct position as Associate Professor in the Language Technology Group of the University of Oslo, where I am involved in several courses in machine learning and natural language processing. I am also a former member of the Young Academy of Norway.

Projects

  • Machine learning
  • Language technology
  • Digital security

Semi-Automated Cyber Risk Management 

The image shows an illustrated robot against a brown background. Rudimentary illustration.
  • Machine learning

How do we understand machines that talk to us?

Publications

  • 118 publications found
  • Publisher

Casey Kennington; Pierre Lison; David Schlangen; Incremental Dialogue Management: Survey, Discussion, and Implications for HRI arXiv, 2025. Scientific article

Benet Manzanares-Salor; David Sánchez; Pierre Lison; Evaluating the disclosure risk of anonymized documents via a machine learning-based re-identification attack Data mining and knowledge discovery, vol. 38, pp. 4040 4075 35 , (ISSN 1384-5810 1573-756X ), doi: https://doi.org/10.1007/s10618-024-01066-3 , 2024. Scientific article

Pierre Lison; Nå kan KI-generert tekst vannmerkes Dagensnæringsliv, 2024. Article feature

Ildikó Pilán; Laurent Prévot; Hendrik Buschmeier; Pierre Lison; Conversational Feedback in Scripted versus Spontaneous Dialogues: A Comparative Analysis pp. 440 457 , doi: https://doi.org/10.18653/v1/2024.sigdial-1.38 , 2024. Scientific chapter / article / conference article

Publisher Norsk Regnesentral

Syed Zohaib Hassan; Pierre Lison; Pål Halvorsen; Enhancing Naturalness in LLM-Generated Utterances through Disfluency Insertion arXiv, 2024. Scientific article

Nils Hallvard Korsvoll; Pierre Lison; Hilde Reinertsen; Mari Elken; Haley De Korne; et al. Fire tiltak for en bedre språkpolitikk i akademia Khrono.no, (ISSN 1894-8995 ), 2023. Article feature

Ingrid Lossius Falkum; Pierre Lison; Er prateroboten ChatGPT en klok samtale­partner eller papegøye? Forskersonen.no, 2023. Article feature

Nicholas Thomas Walker; Pierre Lison; GraphWOZ: Dialogue Management with Conversational Knowledge Graphs 2023. Scientific lecture

Jeremy Claude Barnes; Samia Touileb; Petter Mæhlum; Pierre Lison; Identifying Token-Level Dialectal Features in Social Media pp. 13 , , 2023. Scientific chapter / article / conference article

Anders Mølmen Høst; Pierre Lison; Leon Moonen; Constructing a Knowledge Graph from Textual Descriptions of Software Vulnerabilities in the National Vulnerability Database pp. 386 391 6 , , 2023. Scientific chapter / article / conference article

Annika Willoch Olstad; Anthi Papadopoulou; Pierre Lison; Generation of Replacement Options in Text Sanitization pp. 292 300 9 , , 2023. Scientific chapter / article / conference article

Solveig Engebretsen; Anders Løland; Pierre Lison; Alt du kan lære om statistisk modellering og maskinlæring på en dag 2023. Lecture

Solveig Engebretsen; Anders Løland; Pierre Lison; Alt du kan lære om statistisk modellering og maskinlæring på en dag 2023. Lecture

Pierre Lison; Samia Touileb; Chat GPT egner seg dårlig til eksamenssensuren Morgenbladet, (ISSN 0805-3847 0806-2617 ), 2023. Article feature

Nicholas Thomas Walker; Stefan Ultes; Pierre Lison; Retrieval-Augmented Neural Response Generation Using Logical Reasoning and Relevance Scoring SemDial Proceedings, pp. 13 , (ISSN 2308-2275 2308-2275 ), , 2023. Scientific article

Pierre Lison; Venn med kunstig intelligens 2023. Media interview

Pierre Lison; Kunstig Intelligens, en fare for menneskeheten? 2023. Media interview

Michael Riegler; Pierre Lison; Ingrid Lossius Falkum; Kunstig intelligens-modeller er ikke miniatyr­versjoner av den menneskelige hjernen Forskersonen.no, 2023. Article feature

Pierre Lison; Samia Touileb; Chat GPT egner seg dårlig til eksamenssensuren Morgenbladet, 2023. Article feature

Fredrik Andreas Dahl; Line Eikvil; Ingunn Fride Tvete; Pierre Lison; Ildikó Pilán; et al. Helse-effektivisering - et mulig satsningsområde for NR 2023. Report

Publisher Norsk Regnesentral

Nicholas Thomas Walker; Stefan Ultes; Pierre Lison; A Graph-to-Text Approach to Knowledge-Grounded Response Generation in Human-Robot Interaction arXiv, 2023. Scientific article

Emily Mary Weitzenboeck; Pierre Lison; Malgorzata Agnieszka Cyndecka; Malcolm Langford; The GDPR and Unstructured Data: Is Anonymisation Possible? International Data Privacy Law (IDPL), vol. 12, pp. 184 206 22 , (ISSN 2044-3994 2044-4001 ), doi: https://doi.org/10.1093/idpl/ipac008 , 2022. Scientific article

Publisher Oxford University Press

Pierre Lison; Nils Hallvard Korsvoll; Aase-Kristine Aasen Lundberg; Kjernekraft -er det farlig, eller er det fremtiden? Morgenbladet, (ISSN 0805-3847 0806-2617 ), 2022. Article feature

Pierre Lison; Dis, c'est quoi l'intelligence artificielle? (ISSN 2507057297 ), 2022. Popular science book

Publisher Renaissance Du Livre

Pierre Lison; Anonymization of sensitive information 2022. Lecture

Bjarte Aarmo Lund; Astrid Marie Jorde Sandsør; Pierre Lison; Problemer på kontoret: Alltid jeg som må trakte kaffe Morgenbladet, (ISSN 0805-3847 0806-2617 ), 2022. Article feature

Anthi Papadopoulou; Pierre Lison; Lilja Øvrelid; Ildikó Pilán; Bootstrapping Text Anonymization Models with Distant Supervision pp. 4477 4487 , , 2022. Scientific chapter / article / conference article

Nicholas Thomas Walker; Torbjørn Dahl; Pierre Lison; Dialogue Management as Graph Transformations pp. 219 227 , doi: https://doi.org/10.1007/978-981-19-5538-9_15 , 2022. Scientific chapter / article / conference article

Benet Manzanares-Salor; David Sánchez; Pierre Lison; Automatic Evaluation of Disclosure Risks of Text Anonymization Methods pp. 157 171 , doi: https://doi.org/10.1007/978-3-031-13945-1_12 , 2022. Scientific chapter / article / conference article

Ildikó Pilán; Pierre Lison; Lilja Øvrelid; Anthi Papadopoulou; David Sánchez; et al. The text anonymization benchmark (TAB): A dedicated corpus and evaluation framework for text anonymization Computational Linguistics, vol. 48, pp. 1053 1101 , (ISSN 0891-2017 1530-9312 ), doi: https://doi.org/10.1162/coli_a_00458 , 2022. Scientific article

Publisher MIT Press

Pierre Lison; Aike Peter Rots; Haley De Korne; Hvilket fremmedspråk bør man lære seg i Google-oversettelsenes tidsalder? Morgenbladet, (ISSN 0805-3847 0806-2617 ), 2022. Article feature

Anthi Papadopoulou; Yunhao Yu; Pierre Lison; Lilja Øvrelid; Neural Text Sanitization with Explicit Measures of Privacy Risk pp. 217 229 , , 2022. Scientific chapter / article / conference article

Hva er universell utforming? 2022. Popular science hosting

Syed Zohaib Hassan; Pegah Salehi; Ragnhild Klingenberg Røed; Pål Halvorsen; Gunn Astrid Baugerud; et al. Towards an AI-driven talking avatar in virtual reality for investigative interviews of children pp. 9 15 , doi: https://doi.org/10.1145/3534085.3534340 , 2022. Scientific chapter / article / conference article

Pierre Lison; Ildikó Pilán; David Sánchez; Montserrat Batet; Lilja Øvrelid; Anonymisation Models for Text Data: State of the art, Challenges and Future Directions pp. 4188 4203 , doi: https://doi.org/10.18653/v1/2021.acl-long.323 , 2021. Scientific chapter / article / conference article

Pierre Lison; Jeremy Barnes; Aliaksandr Hubin; skweak: Weak Supervision Made Easy for NLP pp. 337 346 , doi: https://doi.org/10.18653/v1/2021.acl-demo.40 , 2021. Scientific chapter / article / conference article

Pierre Lison; Ildikó Pilán; David Sánchez Ruenes; Montserrat Batet; Lilja Øvrelid; Anonymisation Models for Text Data: State of the art, Challenges and Future Directions 2021. Scientific lecture

Pierre Lison; Ildikó Pilán; Lilja Øvrelid; David Sánchez Ruenes; Montserrat Batet; Anonymisation Models for Text Data: State of the art, Challenges and Future Directions 2021. Scientific lecture

Pierre Lison; Jeremy Claude Barnes; Aliaksandr Hubin; skweak: weak supervision made easy for NLP 2021. Poster

Joakim Olsen; Arild Brandrud Næss; Pierre Lison; Assessing the Quality of Human-Generated Summaries with Weakly Supervised Learning pp. 112 123 , , 2021. Scientific chapter / article / conference article

Kristiina Jokinen; Martin Heckmann; Dinesh Lala; Pierre Lison; Proceedings of the 1st RobotDial Workshop on Dialogue Models for Human-Robot Interaction , 2021. Report

Publisher RobotDial workshop

Pierre Lison; Skweak: Weak Supervision Made Easy for NLP 2021. Scientific lecture

Pierre Lison; Fremdrift i forskningsprosjekter 2021. Lecture

Pierre Lison; Jørgen Bølstad; Anders Kvellestad; Forvirrende pandemistatistikk: Hva skal vi med logaritmer i grafer? Morgenbladet, (ISSN 0805-3847 0806-2617 ), , 2021. Article feature

Nicholas Thomas Walker; Torbjørn Dahl; Pierre Lison; Dialogue Management as Graph Transformations 2021. Scientific lecture

Pierre Lison; Vi må snakke om Bitcoin NRK Ytring, , 2021. Article feature

Pierre Lison; Jørgen Bølstad; Anders Kvellestad; Hva skal vi med logaritmer i grafer? Morgenbladet, (ISSN 0805-3847 0806-2617 ), 2021. Article feature

Nils Hallvard Korsvoll; Mari Elken; Alexander Harald Sandtorv; Pierre Lison; Welcome to Norway! Khrono.no, (ISSN 1894-8995 ), , 2021. Article feature

Annabelle Alice Redelmeier; Pierre Lison; Anders Løland; Ildikó Pilán; Predicting insurance fraud with the help of a sentiment analysis model 2021. Report

Publisher Norsk Regnesentral

Pierre Lison; Jeremy Barnes; Aliaksandr Hubin; Samia Touileb; Named Entity Recognition without Labelled Data: A Weak Supervision Approach (ISSN 978-1-950737-48-2 ), 2020. Scientific anthology / conference series

Publisher Association for Computational Linguistics

Pierre Lison; Jeremy Barnes; Aliaksandr Hubin; Samia Touileb; Named Entity Recognition without Labelled Data: A Weak Supervision Approach pp. 1518 1533 , , 2020. Scientific chapter / article / conference article

Pierre Lison; Ingrid Lossius Falkum; Kan kunstig intelligens "forstå" språk? Aftenposten (morgenutg. : trykt utg.), (ISSN 0804-3116 0807-2027 ), , 2020. Science for the public article

Michael Riegler; Pierre Lison; Inga Strümke; Anders Løland; For enkelt om kunstig intelligens: – Diskriminerende og fordomsfull AI er ikke alltid lett å løse Forskning.no, (ISSN 1891-635X 1891-6341 ), , 2020. Reader opinion

Publisher Norges forskningsråd

Pierre Lison; Ingrid Lossius Falkum; Hva skjedde med «Don’t be evil»? Morgenbladet, (ISSN 0805-3847 0806-2617 ), , 2020. Article feature

Pierre Lison; Ethical and social impacts of AI 2020. Lecture

Youngsoo Jang; Jongmin Lee; Jaeyoung Park; Kyeng-Hun Lee; Pierre Lison; et al. PyOpenDial: A Python-based Domain-Independent Toolkit for Developing Spoken Dialogue Systems with Probabilistic Rules pp. 187 192 , doi: https://doi.org/10.18653/v1/D19-3032 , 2019. Scientific chapter / article / conference article

Pierre Lison; Dialogue Modelling: Small data, Big data 2019. Scientific lecture

Pierre Lison; Data-driven models of reputation for cybersecurity , 2019. Scientific lecture

Pierre Lison; Open challenges in anonymisation 2019. Lecture

Pierre Lison; Tekstmining: En kort innføring , 2018. Lecture

Pierre Lison; Jörg Tiedemann; Milen Kouylekov; OpenSubtitles 2018: Statistical rescoring of sentence alignments in large, noisy parallel corpora pp. 1742 1748 , , 2018. Scientific chapter / article / conference article

Pierre Lison; A. Seza Dogruöz; Detecting Machine-translated Documents in Large Parallel Corpora pp. 25 32 , , 2018. Scientific chapter / article / conference article

Pierre Lison; Data-driven models of reputation in cyber-security , 2018. Scientific lecture

Pierre Lison; Jörg Tiedemann; Milen Kouylekov; OpenSubtitles 2018: Statistical Rescoring of Sentence Alignments in Large, Noisy Parallel Corpora , 2018. Scientific lecture

Pierre Lison; Anonymisering av rettsavgjørelser 2018. Report

Publisher Norsk Regnesentral

Pierre Lison; Casey Kennington; Incremental Processing for Neural Conversational Models , 2017. Poster

Pierre Lison; Casey Kennington; Incremental Processing for Neural Conversational Models SemDial Proceedings, pp. 162 163 , (ISSN 2308-2275 2308-2275 ), , 2017. Scientific article

Pierre Lison; Vasileios Mavroeidis; Automatic Detection of Malware-Generated Domains with Recurrent Neural Models Norsk Informasjonssikkerhetskonferanse (NISK), pp. 12 , (ISSN 1893-6563 1894-7735 ), , 2017. Scientific article

Publisher Tapir Akademisk Forlag

Pierre Lison; Andrei Kutuzov; Redefining Context Windows for Word Embedding Models: An Experimental Study pp. 284 288 , , 2017. Scientific chapter / article / conference article

Pierre Lison; Serge Bibauw; Not All Dialogues are Created Equal: Instance Weighting for Neural Conversational Models pp. 384 394 , doi: https://doi.org/10.18653/v1/w17-5546 , 2017. Scientific chapter / article / conference article

Pierre Lison; Vasileios Mavroeidis; Neural Reputation Models learned from Passive DNS data pp. 3662 3671 , doi: https://doi.org/10.1109/BigData.2017.8258361 , 2017. Scientific chapter / article / conference article

Pierre Lison; Neural Reputation Models learned from Passive DNS Data 2017. Scientific lecture

Pierre Lison; Raveesh Meena; Automatic Turn Segmentation of Movie and TV Subtitles pp. 245 252 , doi: https://doi.org/10.1109/SLT.2016.7846272 , 2016. Scientific chapter / article / conference article

Pierre Lison; Automatic Turn Segmentation for Movie and TV Subtitles , 2016. Scientific lecture

Pierre Lison; Dialogue modelling: small data and large data , 2016. Scientific lecture

Svetlana Stoyanchev; Pierre Lison; Srinivas Bangalore; Rapid Prototyping of Form-driven Dialogue Systems Using an Open-source Framework pp. 216 219 , doi: https://doi.org/10.18653/v1/w16-3626 , 2016. Scientific chapter / article / conference article

Pierre Lison; Casey Kennington; OpenDial: A Toolkit for Developing Spoken Dialogue Systems with Probabilistic Rules pp. 67 72 , doi: https://doi.org/10.18653/v1/p16-4012 , 2016. Scientific chapter / article / conference article

Paolo Dragone; Pierre Lison; Classification and Resolution of Non-Sentential Utterances in Dialogue Italian Journal of Computational Linguistics (IJCoL), pp. 45 62 24 , , 2016. Scientific article

Pierre Lison; A short introduction to statistical machine translation , 2016. Lecture popular

Pierre Lison; Jörg Tiedemann; OpenSubtitles2016: Extracting Large Parallel Corpora from Movie and TV Subtitles pp. 923 929 , , 2016. Scientific chapter / article / conference article

Paolo Dragone; Pierre Lison; An Active Learning Approach to the Classification of Non-Sentential Utterances pp. 115 119 , doi: https://doi.org/10.4000/books.aaccademia.1464 , 2015. Scientific chapter / article / conference article

Pierre Lison; Structured Probabilistic Modelling for Dialogue Management , 2015. Scientific lecture

Pierre Lison; Casey Kennington; Developing Spoken Dialogue Systems with the OpenDial toolkit , 2015. Poster

Paolo Dragone; Pierre Lison; Non-sentential utterances in dialogue: experiments in classification and interpretation SemDial Proceedings, pp. 170 172 , , 2015. Scientific article

Pierre Lison; Casey Kennington; Developing Spoken Dialogue Systems with the OpenDial Toolkit SemDial Proceedings, pp. 194 196 , , 2015. Scientific article

Pierre Lison; A hybrid approach to dialogue management based on probabilistic rules Computer Speech and Language, pp. 232 255 , doi: https://doi.org/10.1016/j.csl.2015.01.001 , 2015. Scientific article

Publisher Elsevier

Pierre Lison; Structured Probabilistic Modelling for Dialogue Management 2014. Scientific lecture

Pierre Lison; Raveesh Meena; Spoken Dialogue Systems: A New Frontier in Human-Computer Interaction ACM Crossroads, 2014. Science for the public article

Michal Kajetan Kosek; Pierre Lison; An Intelligent Tutoring System for Learning Chinese with a Cognitive Model of the Learner pp. 179 184 , doi: https://doi.org/10.14705/rpnet.2014.000214 , 2014. Scientific chapter / article / conference article

Pierre Lison; Structured Probabilistic Modelling for Dialogue Management , 2014. Doctor dissertat

Publisher Universitetet i Oslo

Pierre Lison; Model-based Bayesian Reinforcement Learning for Dialogue Management Interspeech, , 2013. Scientific article

Publisher International Speech Communication Association

Pierre Lison; Kan man snakke med en robot? , 2013. Lecture popular

Pierre Lison; Dr. Utenlansk , 2013. Media interview