chrchrs @ amazon . co . uk
Christos Christodoulopoulos
christod @ illinois . edu
orcid.org/0000-0001-7708-0051
(visit my Google Scholar profile)
2017
Relational Learning and Feature Extraction by Querying over Heterogeneous Information Networks
Parisa Kordjamshidi, Sameer Singh, Daniel Khashabi, Christos Christodoulopoulos, Mark Summons, Saurabh Sinha, Dan Roth
StarAI
@inproceedings{Kordjamshidi17Relational, author = {Kordjamshidi, Parisa and Singh, Sameer and Khashabi, Daniel and Christodoulopoulos, Christos and Summons, Mark and Roth, Dan}, title = {Relational Learning and Feature Extraction by Querying over Heterogeneous Information Networks}, booktitle = {Seventh International Workshop on Statistical Relational AI}, year = {2017} }
2016
Better call Saul: Flexible Programming for Learning and Inference in NLP
Parisa Kordjamshidi, Daniel Khashabi, Christos Christodoulopoulos, Bhargav Mangipudi, Sameer Singh, Dan Roth
COLING
(.pdf) (.bib) (slides) (code)
@inproceedings{Kordjamshidi16Better, author = {Kordjamshidi, Parisa and Khashabi, Daniel and Christodoulopoulos, Christos and Mangipudi, Bhargav and Singh, Sameer and Roth, Dan}, title = {Better call {Saul}: Flexible Programming for Learning and Inference in {NLP}}, booktitle = {COLING}, year = {2016} }
Revisiting Evaluation for Cross Document Event Coreference
Shyam Upadhyay, Nitish Gupta, Christos Christodoulopoulos and Dan Roth
COLING
(.pdf) (.bib)
@inproceedings{Upadhyay16Revisiting, author = {Upadhyay, Shyam and Gupta, Nitish and Christodoulopoulos, Christos and Roth, Dan}, title = {Revisiting Evaluation for Cross Document Event Coreference}, booktitle = {COLING}, year = {2016} }
Transliteration in Any Language with Surrogate Languages
Stephen Mayhew, Christos Christodoulopoulos, and Dan Roth
eprint arXiv:1609.04325
@article{MayhewChRo16, arxivId = {1609.04325}, author = {Mayhew, Stephen and Christodoulopoulos, Christos and Roth, Dan}, eprint = {1609.04325}, title = {Transliteration in Any Language with Surrogate Languages}, url = {http://arxiv.org/abs/1609.04325}, year = {2016} }
An Incremental Model of Syntactic Bootstrapping
Christos Christodoulopoulos, Dan Roth, and Cynthia Fisher
In Proceedings of the Seventh Workshop on Cognitive Aspects of Computational Language Learning
(.pdf) (.bib) (poster)
@inproceedings{ChristodoulopoulosRoFi16, author = {Christodoulopoulos, Christos and Roth, Dan and Fisher, Cynthia}, title = {An Incremental Model of Syntactic Bootstrapping}, booktitle = {Proceedings of the Seventh Workshop on Cognitive Aspects of Computational Language Learning}, year = {2016} }
"Making the News": Identifying Noteworthy Events in News Articles
Shyam Upadhyay, Christos Christodoulopoulos, and Dan Roth
In Proceedings of The 4th Workshop on EVENTS: Definition, Detection, Coreference, and Representation
(.pdf) (.bib)
@inproceedings{UpadhyayChRo16, author = {Upadhyay, Shyam and Christodoulopoulos, Christos and Roth, Dan}, title = {``Making the News'': Identifying Noteworthy Events in News Articles}, booktitle = {The 4th Workshop on {EVENTS}: Definition, Detection, Coreference, and Representation}, year = {2016} }
Edison: Feature Extraction for NLP, Simplified
Mark Sammons, Christos Christodoulopoulos, Parisa Kordjamshidi, Daniel Khashabi, Vivek Srikumar, Paul Vijayakumar, Mazin Bokhari, Xinbo Wu and Dan Roth
In Proceedings of LREC 2016
(.pdf) (.bib) (poster)
@inproceedings{SCKKSVBWR16, author = {Mark Sammons and Christos Christodoulopoulos and Parisa Kordjamshidi and Daniel Khashabi and Vivek Srikumar and Paul Vijayakumar and Mazin Bokhari and Xinbo Wu and Dan Roth}, title = {Edison: Feature Extraction for {NLP}, Simplified}, booktitle = {LREC}, month = {6}, year = {2016} }
Children’s Production of Determiners as a Test Case for Innate Syntactic Categories
Catriona Silvey and Christos Christodoulopoulos
In Proceedings of Evolang 11
(.pdf) (.bib) (slides) (code)
@inproceedings{Silvey2016Children, author = {Silvey Catriona, and Christodoulopoulos, Christos}, title = {Children’s Production of Determiners as a Test Case for Innate Syntactic Categories}, booktitle = {The Evolution of Language: Proceedings of the 11th International Conference (EVOLANGX11)}, editor = {S.G. Roberts and C. Cuskley and L. McCrohon and L. Barcel\'{o}-Coblijn and O. Feher and T. Verhoef}, publisher = {Online at \url{http://evolang.org/neworleans/papers/23.html}}, year = {2016} }
Labeling the Semantic Roles of Commas
Naveen Arivazhagan, Christos Christodoulopoulos and Dan Roth
In Proceedings of AAAI 2016
@inproceedings{ArivazhaganChRo16, author = {Arivazhagan Naveen, and Christodoulopoulos, Christos and Roth, Dan}, title = {Labeling the Semantic Roles of Commas}, booktitle = {AAAI}, month = {2}, year = {2016} }
2015
Labeled Grammar Induction with Minimal Supervision
Yonatan Bisk, Christos Christodoulopoulos and Julia Hockenmaier
In Proceedings of ACL 2015
(.pdf*) (.bib) (poster)
*This is an updated version that corrects the results of Table 3.
@inProceedings{Bisk2015Labeled, author = {Bisk, Yonatan and Christodoulopoulos, Christos and Hockenmaier, Julia}, title = {Generalizing a Strongly Lexicalized Parser using Unlabeled Data}, booktitle = {Proceedings of {ACL}}, year = {2015}, address = {Beijing, China}, pages = {870--876}, publisher = {Association for Computational Linguistics} }
A massively parallel corpus: the Bible in 100 languages
Christos Christodoulopoulos and Mark Steedman
Language Resources and Evaluation, 49(2)
@article{Christodouloupoulos2015Bible, title = {A massively parallel corpus: the Bible in 100 languages}, author = {Christodoulopoulos, Christos and Steedman, Mark}, journal = {Language Resources and Evaluation}, volume = {49}, number = {2}, pages = {375--395}, year = {2015}, publisher={Springer Netherlands} }
2014
Generalizing a Strongly Lexicalized Parser using Unlabeled Data
Tejaswini Deoskar, Christos Christodoulopoulos, Alexandra Birch and Mark Steedman
In Proceedings of EACL 2014
(.pdf) (.bib)
@inProceedings{Deoskar2014Generalizing, author = {Deoskar, Tejaswini and Christodoulopoulos, Christos and Birch, Alexandra and Steedman, Mark}, title = {Generalizing a Strongly Lexicalized Parser using Unlabeled Data}, booktitle = {Proceedings of {EACL}}, month = {April}, year = {2014}, address = {Gothenburg, Sweden}, publisher = {Association for Computational Linguistics}, pages = {126--134} }
2013
An Iterated Learning Framework for Unsupervised Part-of-Speech Induction
Christos Christodoulopoulos
PhD Thesis, University of Edinburgh
(.pdf) (.bib) (video) (slides)
@thesis{Christodoulopoulos2013Iterated, author = {Christodoulopoulos, Christos}, title = {An Iterated Learning Framework for Unsupervised Part-of-Speech Induction}, institution = {School of Informatics, University of Edinburgh}, year = {2013} }
2012
Turning the pipeline into a loop: Iterated unsupervised dependency parsing and PoS induction
Christos Christodoulopoulos, Sharon Goldwater and Mark Steedman
In Proceedings of the NAACL-HLT 2012 Workshop on the Induction of Linguistic Structure
(.pdf) (.bib) (poster)
@inproceedings{Christodoulopoulos2012Turning, author = {Christodoulopoulos, Christos and Goldwater, Sharon and Steedman, Mark}, title = {Turning the pipeline into a loop: Iterated unsupervised dependency parsing and PoS induction}, booktitle = {Proceedings of the {NAACL-HLT} Workshop on the Induction of Linguistic Structure}, month = {June}, year = {2012}, location = {Montr{\'e}al, Canada}, pages = {96--99} }
2011
A Bayesian Mixture Model for Part-of-Speech Induction Using Multiple Features
Christos Christodoulopoulos, Sharon Goldwater and Mark Steedman
In Proceedings of EMNLP 2011
(.pdf) (.bib) (slides) (code)
@inproceedings{Christodoulopoulos2011Bayesian, author = {Christodoulopoulos, Christos and Goldwater, Sharon and Steedman, Mark}, title = {A {B}ayesian Mixture Model for {PoS} Induction Using Multiple Features}, booktitle = {Proceedings of {EMNLP}}, year = {2011}, location = {Edinburgh, United Kingdom}, pages = {638--647} }
2010
Two Decades of Unsupervised POS Induction: How far have we come?
Christos Christodoulopoulos, Sharon Goldwater and Mark Steedman
In Proceedings of EMNLP 2010
(.pdf*) (.bib) (slides) (results)
*This is an updated version that corrects a minor bug in the computation of the vmb measure in Figure 1 and Table 1.
Thanks to Andreas Zollmann for pointing this out
@inproceedings{Christodoulopoulos2010Two, location = {Cambridge, MA, USA}, author = {Christodoulopoulos, Christos and Goldwater, Sharon and Steedman, Mark}, booktitle = {Proceedings of {EMNLP}}, pages = {575--584}, title = {Two Decades of Unsupervised {POS} Induction: How Far Have We Come?}, year = {2010} }
2008
Creating a Natural Logic Inference System with Combinatory Categorial Grammar
Christos Christodoulopoulos
Master's thesis, University of Edinburgh 2008
(.pdf) (.bib)
@mastersthesis{Christodoulopoulos08Creating, author = {Christodoulopoulos, Christos}, school = {School of Informatics, University of Edinburgh}, title = {Creating a Natural Logic Inference System with Combinatory Categorial Grammar}, year = {2008} }
2007
A Group Formation Tool in an E-Learning Context
Christos Christodoulopoulos and Kyparisia Papapanikolaou
In Proceedings of ICTAI 2007
(.pdf) (.bib) (website)
@article{Christodoulopoulos2007Group, address = {Los Alamitos, CA, USA}, author = {Christodoulopoulos, Christos E. and Papanikolaou, Kyparisia A.}, journal = {Tools with Artificial Intelligence, IEEE International Conference on}, pages = {117--123}, publisher = {IEEE Computer Society}, title = {A Group Formation Tool in an E-Learning Context}, volume = {2}, year = {2007} }
Investigating Group Formation Using Low Complexity Algorithms
Christos Christodoulopoulos and Kyparisia Papapanikolaou
In Proceedings of the PING Workshop of UM 2007
(.pdf) (.bib)
@inproceedings{Christodoulopoulos2007Investigating, author = {Christodoulopoulos, Christos and Papapanikolaou, Kyparisia}, booktitle = {Proceedings of the Personalisation in E-Learning Environments at Individual and Group Level Workshop, in 11th International Conference on User Modeling}, month = {June}, location = {Corfu, Greece}, title = {Investigating Group formation using low complexity algorithms}, year = {2007} }
A Realistic Approach to Source Localization Using a Wireless Robotic Network
Christos Christodoulopoulos, Christos Kyriakopoulos and Athanasios Kanatas
In Proceedings of RoboComm 2007
(.pdf) (.bib)
@inproceedings{Christodoulopoulos2007Realistic, address = {Piscataway, NJ, USA}, author = {Christodoulopoulos, Christos and Kyriakopoulos, Christos and Kanatas, Athanasios G.}, booktitle = {RoboComm '07: Proceedings of the 1st international conference on Robot communication and coordination}, location = {Athens, Greece}, pages = {1--4}, publisher = {IEEE Press}, title = {A realistic approach to source localization using a wireless robotic network}, year = {2007} }

Talks:

Simple Large-scale Relation Extraction from Unstructured Text
Language-Learning-Logic Workshop (3L 2017)
(slides)
Cognitive and application-driven ML for natural language
OSU - Clippers group
(slides)
Tutorial: Building a classifier using Learning Based Java (with Parisa Kordjamshidi)
Machine Learning (CS446) - Fall 2015
Exploring the assumptions of language acquisition models
Midwest Speech & Language Days 2015
PhD Thesis presentation
My pre-viva (PhD defense) talk under the working title
"Unsupervised Syntactic Category Induction using Multi-level Linguistic Features"
From Languages to Language: cracking the code with computers
(video)
Can you think without words?
A EUSci seminar talk on linguistic relativity, maths and recursion