Pieter Wellens

Research

Language is one of the most fascinating feats of the human mind. Through language we can connect to others, communicate our feelings, our goals, our wishes and dreams. It allows us to conceptualise the world around us and communicate these conceptualisations to others and pass them on to new generations. In my research I try to shed light on these issues by bringing together technologies from different branches in artificial intelligence and computer science in general. If you want to know more take a look at my publications or visit the VUB AI-Lab.

You can also find my publications on Google Scholar on my VUB AI-Lab page and on Mendeley.

Publications

  • Wellens, P., van Trijp R., Beuls K. and Steels, L. (2013). Fluid Construction Grammar for Historical and Evolutionary Linguistics. In Pascale Fung and Massimo Poesi (eds.), Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics, pp. 127-132, Sofia Bulgaria.
    bibtex
    @InProceedings{wellens13acl,
    author = {Wellens, Pieter and van Trijp, Remi and Beuls, Katrien and Steels, Luc},
    title = {Fluid Construction Grammar for Historical and Evolutionary Linguistics},
    booktitle = {Proceedings of 51st Annual Meeting of the Association for Computational Linguistics},
    month = {August},
    year = {2013},
    address = {Sofia, Bulgaria},
    publisher = {Association for Computational Linguistics},
    pages = {127--132},
    }
  • Wellens, P. (2012). Adaptive Strategies in the Emergence of Lexical Systems. Vrije Universiteit Brussel, Brussels.
    bibtex
    @mastersthesis {wellens12phd,
    title = {Adaptive Strategies in the Emergence of Lexical Systems},
    year = {2012},
    school = {Vrije Universiteit Brussel},
    type = {phd},
    address = {Brussels},
    abstract = {This thesis can be situated in a new scientific paradigm that investigates the emergence and evolution of linguistic conventions through evolutionary language games. My contributions are mainly related to lexical conventions and the gradual development of cognitive structures.},
    author = {Wellens, P.}
    }
  • Stadler, K., Wellens, P., & De Beule, J. (2012). The Combinatorial Naming Game. In B. De Baets, B. Manderick, M. Rademaker, & W. Waegeman, Proceedings of the 21st Belgian-Dutch Conference on Machine Learning (BeneLearn 2012). Ghent, Belgium.
    bibtex
    @inproceedings{stadler12combinatorial,
    title = {The Combinatorial Naming Game},
    booktitle = {Proceedings of the 21st Belgian-Dutch Conference on Machine Learning (BeneLearn 2012)},
    year = {2012},
    address = {Ghent, Belgium},
    abstract = {In this article we introduce combinatorial form into the well-known Naming Game paradigm in which autonomous agents have to establish a globally shared communication system through strictly local interactions. While virtually all investigations of the Naming Game so far have been carried out using atomic names, we highlight some interesting aspects that arise only when naming is done using combinatorial forms. We present an analysis which relates Naming Games to information theory and discuss first results from multi-agent simulations in light of this analysis. },
    keywords = {conventionalisation, language change, lexicon formation, multi-agent systems, naming game, source coding},
    author = {Stadler, Kevin and Wellens, P. and De Beule, Joachim},
    editor = {De Baets, Bernard and Manderick, Bernard and Rademaker, Michael and Waegeman, Willem}
    }
  • Beuls, K., van Trijp, R., & Wellens, P. (2012). Diagnostics and Repairs in Fluid Construction Grammar. In L. Steels & M. Hild, Language Grounding in Robots (pp. 215-234). Berlin: Springer Verlag.
    bibtex
    @inbook {beuls12diagnostics,
    title = {Diagnostics and Repairs in Fluid Construction Grammar},
    booktitle = {Language Grounding in Robots},
    year = {2012},
    pages = {215-234},
    publisher = {Springer Verlag},
    organization = {Springer Verlag},
    address = {Berlin},
    author = {Katrien Beuls and van Trijp, Remi and Wellens, P.},
    editor = {Steels, Luc and Hild, Manfred}
    }
  • Steels, L., De Beule, J., & Wellens, P. (2012). Fluid Construction Grammar on Real Robots. In L. Steels & M. Hild, Language Grounding in Robots. Berlin: Springer Verlag.
    bibtex
    @inbook {steels12fcg-robots,
    title = {Fluid Construction Grammar on Real Robots},
    booktitle = {Language Grounding in Robots},
    year = {2012},
    publisher = {Springer Verlag},
    organization = {Springer Verlag},
    address = {Berlin},
    author = {Steels, Luc and De Beule, Joachim and Wellens, P.},
    editor = {Steels, Luc and Hild, Manfred}
    }
  • van Trijp, R., Steels, L., Beuls, K., & Wellens, P. (2012). Fluid Construction Grammar: The New Kid on the Block. In Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics. Avignon: ACL.
    bibtex
    @inproceedings{vantrijp12newkid,
    title = {Fluid Construction Grammar: The New Kid on the Block},
    booktitle = {Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics},
    year = {2012},
    publisher = {ACL},
    organization = {ACL},
    address = {Avignon},
    abstract = {Cognitive linguistics has reached a stage of maturity where many researchers are looking for an explicit formal grounding of their work. Unfortunately, most current models of deep language processing incorporate assumptions from generative grammar that are at odds with the cognitive movement in linguistics. This demonstration shows how Fluid Construction Grammar (FCG), a fully operational and bidirectional unification-based grammar formalism, caters for this increasing demand. FCG features many of the tools that were pioneered in computational linguistics in the 70s-90s, but combines them in an innovative way. This demonstration highlights the main differences between FCG and related formalisms.},
    author = {van Trijp, R. and Steels, Luc and Katrien Beuls and Wellens, P.}
    }
  • Wellens, P., & Loetzsch, M. (2012). Multi-Dimensional Meanings in Lexicon Formation. In L. Steels, Experiments in Cultural Language Evolution (pp. 143-166). Amsterdam: John Benjamins.
    bibtex
    @inbook{wellens12adaptive,
    title = {Multi-Dimensional Meanings in Lexicon Formation},
    booktitle = {Experiments in Cultural Language Evolution},
    year = {2012},
    pages = {143-166},
    publisher = {John Benjamins},
    organization = {John Benjamins},
    address = {Amsterdam},
    abstract = {This chapter introduces a language game experiment for studying the formation of a shared lexicon when word meanings are not restricted to a single domain, but instead consist of any combination of perceptual features from many different domains. The main difficulty for the language users is that upon hearing a novel word they cannot be sure which aspects or properties of the referred object comprise the meaning of the word. We introduce an Adaptive Language Strategy which pays considerable attention to the adaptive nature of individual word meanings and allows the language user to use its linguistic items in a flexible manner, leading to extensive re-use. Using grounded language game experiments we show that this Adaptive Strategy elegantly copes with the problems introduced by using embodied robotic data and allows scaling towards large meaning spaces and population sizes. The strategy is further compared to a second one which lacks some of the adaptive and flexible features of the first strategy, and show that this non-adaptive strategy struggles to keep a high level of performance under taxing conditions. },
    author = {Wellens, P. and Loetzsch, Martin},
    editor = {Steels, Luc}
    }
  • Wellens, P. (2011). Organizing Constructions in Networks. In L. Steels, Design Patterns in Fluid Construction Grammar (pp. 181-202). Amsterdam: John Benjamins.
    bibtex
    @inbook{wellens11networks,
    title = {Organizing Constructions in Networks},
    booktitle = {Design Patterns in Fluid Construction Grammar},
    year = {2011},
    pages = {181-202},
    publisher = {John Benjamins},
    organization = {John Benjamins},
    address = {Amsterdam},
    abstract = {Fluid Construction Grammar supports different ways to organize the inventory of constructions into networks. This is not just usable for descriptive purposes only. It plays an important role in streamlining the processes deciding which construction to consider first. Networks become increasingly more important as the complexity, multifunctionality, and size of a grammar grows. This chapter shows how networks of constructions are represented in FCG and how they are used to optimize language processing. Two examples are explored in more detail. The first example concerns family relations of specificity between constructions and the second one concerns conditional dependencies. },
    author = {Wellens, P.},
    editor = {Steels, Luc}
    }
  • Beuls, K., & Wellens, P. (2010). Linking Constructions and Categories: A Case Study for Hungarian Object Agreement. In Book of Abstracts of the Sixth International Conference on Construction Grammar (pp. 44-45).
    bibtex
    @inproceedings{wellens10iccg,
    title = {Linking Constructions and Categories: A Case Study for Hungarian Object Agreement},
    booktitle = {Book of Abstracts of the Sixth International Conference on Construction Grammar},
    year = {2010},
    pages = {44-45},
    }
  • Wellens, P., & De Beule, J. (2010). Priming through Constructional Dependencies: a case study in Fluid Construction Grammar. In A. D.M. Smith, M. Schouwstra, B. de Boer, & K. Smith, The Evolution of Language ( EVOLANG8) (pp. 344-351). World Scientific.
    bibtex
    @inproceedings{wellens10priming,
    title = {Priming through Constructional Dependencies: a case study in Fluid Construction Grammar},
    booktitle = {The Evolution of Language ( EVOLANG8)},
    year = {2010},
    pages = {344-351},
    publisher = {World Scientific},
    organization = {World Scientific},
    author = {Wellens, P. and De Beule, Joachim},
    editor = {D.M. Smith, Andrew and Marieke Schouwstra and Bart de Boer and Smith, Kenny}
    }
  • Loetzsch, M., Bleys, J., & Wellens, P. (2009). Understanding the dynamics of complex lisp programs. In Proceedings of the 2nd European Lisp Symposium (pp. 59-69). presented at the May, Milano, Italy.
    bibtex
    @inproceedings{loetzsch09understanding,
    title = {Understanding the dynamics of complex lisp programs},
    booktitle = {Proceedings of the 2nd European Lisp Symposium},
    year = {2009},
    month = {May},
    pages = {59-69},
    address = {Milano, Italy},
    author = {Loetzsch, Martin and Bleys, Joris and Wellens, P.}
    }
  • Loetzsch, M., Wellens, P., De Beule, J., Bleys, J., & van Trijp, R. (2008). The Babel2 Manual. Brussels: AI-Lab VUB.
    bibtex
    @booklet {loetzsch08Babel2,
    title = {The Babel2 Manual},
    number = {AI-Memo 01-08},
    year = {2008},
    publisher = {AI-Lab VUB},
    address = {Brussels},
    author = {Loetzsch, Martin and Wellens, P. and De Beule, Joachim and Bleys, Joris and van Trijp, Remi}
    }
  • Wellens, P. (2008). Coping with Combinatorial Uncertainty in Word Learning: A Flexible Usage-Based Model. In A. D. M. Smith, K. Smith, & R. Ferrer-i-Cancho, The Evolution of Language. Proceedings of the 7th International Conference (EVOLANG 7) (pp. 370-377). Singapore: World Scientific Press.
  • Wellens, P., Loetzsch, M., & Steels, L. (2008). Flexible Word Meaning in Embodied Agents. Connection Science, 20, 173-191.
    bibtex
    @article {wellens08flexible,
    title = {Flexible Word Meaning in Embodied Agents},
    journal = {Connection Science},
    volume = {20},
    number = {2},
    year = {2008},
    pages = {173-191},
    author = {Wellens, P. and Loetzsch, Martin and Steels, Luc}
    }
  • Steels, L., van Trijp, R., & Wellens, P. (2007). Multi-Level Selection in the Emergence of Language Systematicity. In F. Almeida e Costa, L. M. Rocha, E. Costa, & I. Harvey, Advances in Artificial Life (ECAL 2007) (pp. 421-434). Berlin: Springer.
    bibtex
    @inproceedings{steels07multilevel,
    title = {Multi-Level Selection in the Emergence of Language Systematicity},
    booktitle = {Advances in Artificial Life (ECAL 2007)},
    series = {LNAI 4648},
    year = {2007},
    pages = {421-434},
    publisher = {Springer},
    organization = {Springer},
    address = {Berlin},
    author = {Steels, Luc and van Trijp, Remi and Wellens, P.},
    editor = {Almeida e Costa, Fernando and Rocha, Luis M. and Costa, Ernesto and Harvey, Inman}
    }
  • Steels, L., & Wellens, P. (2007). Scaffolding Language Emergence Using the Autotelic Principle. In IEEE Symposium on Artificial Life 2007 (Alife 07) (pp. 325-332). Honolulu, HI: Wiley - IEEE Press.
    bibtex
    @conference {steels07scaffolding,
    title = {Scaffolding Language Emergence Using the Autotelic Principle},
    booktitle = {IEEE Symposium on Artificial Life 2007 (Alife 07)},
    year = {2007},
    pages = {325-332},
    publisher = {Wiley - IEEE Press},
    organization = {Wiley - IEEE Press},
    address = {Honolulu, HI},
    author = {Steels, Luc and Wellens, P.}
    }
  • Steels, L., & Wellens, P. (2006). How Grammar Emerges to Dampen Combinatorial Search in Parsing. In P. Vogt, Y. Sugita, E. Tuci, & C. Nehaniv, Symbol Grounding and Beyond. Proceedings of the Third EELC (pp. 76-88). Berlin: Springer Verlag.
    bibtex
    @conference {steels06how-grammar,
    title = {How Grammar Emerges to Dampen Combinatorial Search in Parsing},
    booktitle = {Symbol Grounding and Beyond. Proceedings of the Third EELC},
    series = {LNAI 4211},
    year = {2006},
    pages = {76-88},
    publisher = {Springer Verlag},
    organization = {Springer Verlag},
    address = {Berlin},
    author = {Steels, Luc and Wellens, P.},
    editor = {Paul Vogt and Sugita, Y. and Tuci, E. and Nehaniv, C.}
    }

Digital Creations

If you have any questions or are looking for a web and or app developer then feel free to contact me.