Rafal RZEPKA

J-GLOBAL         Last updated: Jul 4, 2019 at 14:11
 
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Name
Rafal RZEPKA
Affiliation
Hokkaido University
Section
Graduate School of Information Science and Technology Division of Media and Network Technologies
Job title
Doctorate program student
Degree
Master degree
ORCID ID
0000-0002-8274-0875

Profile

I am working on automatic text understanding algorithms to allow machines analyze average human behavior. My main research topics are common sense knowledge acquisition, affect processing and machine ethics, however I am also involved in artificial humor, metaphors understanding and generation, cyber-bullying detection and many more (especially cross-disciplinary ones).

Research Areas

 
 

Academic & Professional Experience

 
Jun 2017
 - 
Today
Visiting Researcher, Center for Advanced Intelligence Project (AIP), RIKEN
 
Apr 2007
 - 
Today
Assistant Professor, Graduate School of Information Science and Technology, Hokkaido University
 
Apr 2004
 - 
Mar 2007
Assistant, Graduate School of Information Science and Technology, Hokkaido University
 

Education

 
Apr 2001
 - 
Mar 2004
Division of Electrical, Electronic and Information Engineering, Faculty of Engineering, Hokkaido University
 
Oct 1999
 - 
Mar 2001
Department of Information and Management Science, Otaru University of Commerce
 
Oct 1993
 - 
Jun 1999
Oriental Studies, Neophilology, Adam Mickiewicz University
 
 
 - 
1999
Japanese Language, Poznan University
 
 
 - 
2001
Faculty of Social Information, Otaru University of Commerce
 

Committee Memberships

 
 
   
 
The Institute of Electrical and Electronics Engineering (IEEE)  Student Member
 
 
   
 
Japanese Society for Artificial Intelligence  Student Member
 
 
   
 
Japanese Cognitive Science Society  Student Member
 
 
   
 
The Institute of Electronics, Information and Communication Engineers  Student Member
 
 
   
 
Information Processing Society of Japan  Student Member
 

Awards & Honors

 
2015
Exploiting Wikipedia-based Information-rich Taxonomy for Extracting Location and Creator Related Information for ConceptNet Expansion, Best Paper Award, "Emotions, Decisions, Opinions" EDO 2015
 
2011
Introducing Grammatically Aware Regular Expressions, Best Paper Award, Pacific Association For Computational Linguistics
 
2010
Teaching a Humanoid Robot through Physical Feedback: So Easy Even a Five Year Old Could Use It, Encouragement Award, Japan Society for Fuzzy Theory and Intelligent Informatics
 
2008
Disentangling emotions from the Web. Internet in the service of affect analysis, Best Paper Award, Second International Conference on Kansei Engineering & Affective Systems
 
Oct 2002
Prediction of the User’s Reply Using Emotional Information Retrieved from Internet Resources, Best Paper Award, IEEE Hokkaido Chapter
 

Published Papers

 
Language Sense and Communication on Computer
Akinori Abe, Rafal Rzepka, and Michal Ptaszynski
Advances in Human-Computer Interaction (AHCI)      Apr 2019   [Invited]
Unicorn Story Generation and Limits of Words ― On Perspectives of Automatic Tacit Knowledge Addition
Rafal Rzepka, Sho Takishita and Kenji Araki
Technical Report of JSAI Special Interest Group for Artificial General Intelligence, SIG-AGI      Mar 2019
Machine Learning Approach Considering Chinese Slang Lexicon and Emoticons for Chinese Social Media Sentiment Analysis
Da Li, Rafal Rzepka, Michal Ptaszynski, Kenji Araki
AAAI-19 Workshop on Affective Content Analysis (AffCon 2019)      Jan 2019   [Refereed]
Automatic Extraction of Harmful Sentence Patterns with Application in Cyberbullying Detection
Michal Ptaszynski, Fumito Masui, Yasutomo Kimura, Rafal Rzepka and Kenji Araki
Human Language Technology. Challenges for Computer Science and Linguistics   349-363   Nov 2018   [Refereed][Invited]
Teaching Words in Context: Code-Switching Method for English and Japanese Vocabulary Acquisition Systems
Michal Mazur, Rafal Rzepka and Kenji Araki
Human Language Technology. Challenges for Computer Science and Linguistics   332-348   Nov 2018   [Refereed][Invited]
Exploiting Wikipedia-Based Information-Rich Taxonomy for Extracting Location, Creator and Membership Related Information for ConceptNet Expansion
Marek Krawczyk, Rafal Rzepka and Kenji Araki
Human Language Technology. Challenges for Computer Science and Linguistics   262-275   Nov 2018   [Refereed][Invited]
Retrieving Metaphorical Sentences from Japanese Literature Using Standard Text Classification Methods
Mateusz Babieno, Sho Takishita, Rafal Rzepka and Kenji Araki
   Oct 2018
Preliminary Statistical Analysis of Emotional and Moral Impressions Associated with Buddhist Religious Terms
Jagna Nieuwazny, Fumito Masui, Michal Ptaszynski, Rafal Rzepka, Karol Nowakowski
Proceedings of International Workshop on Modern Science and Technology (IWMST 2018)      Oct 2018   [Refereed]
Emoticon-Aware Recurrent Neural Network Model for Chinese Sentiment Analysis
Da Li, Rafal Rzepka, Michal Ptaszynski and Kenji Araki
Proceedings of The Ninth IEEE International Conference on Awareness Science and Technology (iCAST 2018)   161-166   Sep 2018   [Refereed]
Analyzing motivating texts for modelling human-like motivation techniques in emotionally intelligent dialogue systems
Patrycja Świeczkowska, Rafal Rzepka and Kenji Araki
Proceedings of the Biologically Inspired Cognitive Architectures (BICA 2018) Proceedings, Springer Series on Advances in Intelligent Systems and Computing   848 763-768   Aug 2018   [Refereed]
Conversational Control Interface to Facilitate Situational Understanding in a City Surveillance Setting
Daniel Harborne, Dave Braines, Alun Preece and Rafal Rzepka
Proceedings of Linguistic and Cognitive Approaches to Dialog Agents (LaCATODA 2018) IJCAI-ECAI 2018 Workshop   59-66   Jul 2018   [Refereed]
Towards a Dialog System Supporting Determination of Sensitive Technologies
Akihiko Obayashi, Rafal Rzepka
The 16th Annual Meeting of Japan Society for Intellectual Production      Jun 2018
Preliminary Analysis of Weibo Emojis for Sentiment Analysis of Chinese Social Media
Da Li, Rafal Rzepka and Kenji Araki
Proceedings The 32th Annual Conference of the Japanese Society for Artificial Intelligence   1J3(04)    Jun 2018
First Trials with Culture-Dependent Moral Commonsense Acquisition
Rafal Rzepka, Li Da, Kenji Araki
Proceedings The 32th Annual Conference of the Japanese Society for Artificial Intelligence   1F2-OS(5a-05)    Jun 2018
From Words to Emoticons: Deep Emotion Recognition in Text and Its Wider Implications
Rafal Rzepka, Mitsuru Takizawa, Jordi Vallverdu, Michal Ptaszynski, Pawel Dybala, Kenji Araki
International Journal of Computational Linguistics Research   9(1) 10-26   Mar 2018   [Refereed]
Importance of Contextual Knowledge in Artificial Moral Agents Development
Rafal Rzepka, and Kenji Araki
AAAI 2018 Spring Symposium on AI and Society: Ethics, Safety and Trustworthiness in Intelligent Agents   61-68   Mar 2018   [Refereed]
Michal Ptaszynski, Fumito Masui, Yoko Nakajima, Yasutomo Kimura, Rafal Rzepka, and Kenji Araki
Journal of advanced computational intelligence and intelligent informatics   21(7) 1189-1201   Nov 2017   [Refereed]
Be More Eloquent, Professor ELIZA – Comparison of Utterance Generation Methods for Artificial Second Language Tutor
Taku Nakamura, Rafal Rzepka, Kenji Araki, and Kentaro Inui
Proceedings of Linguistic and Cognitive Approaches to Dialog Agents (LaCATODA 2017)      Aug 2017   [Refereed]
Asystent - a Prototype of a Motivating Electronic Assistant
Patrycja Swieczkowska, Jolanta Bachan, Rafal Rzepka, and Kenji Araki
Proceedings of Linguistic and Cognitive Approaches to Dialog Agents (LaCATODA 2017)      Aug 2017   [Refereed]
Conscious vs. Unaware Evaluation - Using Collective Intelligence for an Automatic Evaluation of Acts
Rafal Rzepka and Kenji Araki
2nd international workshop on evaluating general-purpose AI (EGPAI2017)      Aug 2017   [Refereed]
Prototyping A Virtual Reality Game for Commonsense Knowledge Acquisition and Story Understanding
Rafal Rzepka, Joelle Vitzikam, Nicolas Flasque and Kenji Araki
Proceedings of Language Sense on Computers IJCAI 2016 Workshop   35-40   Aug 2017   [Refereed]
What People Say? – Web-based Casuistry for Artificial Morality Experiments
Rafal Rzepka and Kenji Araki
Everitt T., Goertzel B., Potapov A. (eds) Artificial General Intelligence. AGI 2017. Lecture Notes in Computer Science, vol 10414   178-187   Aug 2017   [Refereed]
Natural Language Processing for Predicting Everyday Behavior with and without Time and Duration Information
Rafal Rzepka and Kenji Araki
International Symposium on Forecasting 2017      Jun 2017   [Refereed]
ML-Ask: Open Source Affect Analysis Software for Textual Input in Japanese
Michal Ptaszynski, Pawel Dybala, Rafal Rzepka, Kenji Araki and Fumito Masui
Journal of Open Research Software   1(16)    May 2017   [Refereed]
A Survey on Emoticon Recommendation Technology
Yuki Urabe, Rafal Rzepka, Michal Ptaszynski
JSAI Magazine   32(3) 356-363   May 2017   [Invited]
Worlds Linking Faces - Meaning and Possibilities of Contemporary Pictograms
Rafal Rzepka, Noriyuki Okumura, Michal Ptaszynski
JSAI Magazine   32(3) 350-355   May 2017   [Invited]
Research Trends of Kaomoji Analytics from Engineering and Psychological Points of View
Noriyuki Okumura, Michal Ptaszynski, Rafal Rzepka
JSAI Magazine   32(3) 342-349   May 2017   [Invited]
A Review of the Phenomenon and Studies on Emoticons - How Play on Symbols Became Science
Michal Ptaszynski, Noriyuki Okumura, Rafal Rzepka
JSAI Magazine   32(3) 333-341   May 2017   [Invited]
Subjective? Emotional? Emotive?: Language Combinatorics based Automatic Detection of Emotionally Loaded Sentences
Michal Ptaszynski, Fumito Masui, Rafal Rzepka, Kenji Araki
Linguistics and Literature Studies   5(1) 36-50   Jan 2017   [Refereed]
Automatic Evaluation of Commonsense Knowledge for Refining Japanese ConceptNet
Seiya Shudo, Rafal Rzepka, and Kenji Araki
Proceeding of 12th Workshop on Asian Language Resources (ALR 2016)   105-112   Dec 2016   [Refereed]
Exploiting Wikipedia-based Information-rich Taxonomy for Extracting Location and Creator Related Information for ConceptNet Expansion
Marek Krawczyk, Rafal Rzepka and Kenji Araki
Proceedings of the 7th Language and Technology Conference - LTC 2015   383-387   Nov 2016   [Refereed]
Prototyping Radiobots - Automatic Radio Talks Generator Considering Live Feedback from Listeners
Rafal Rzepka, Yasutomo Kimura, Yoshihito Tsuji and Keiichi Takamaru
Proceedings of Workshop on Chatbots and Conversational Agents Collocated with IVA2016      Sep 2016   [Refereed]
Magnus Ahltorp, Maria Skeppstedt, Shiho Kitajima, Aron Henriksson, Rafal Rzepka and Kenji Araki
Journal of Biomedical Semantics   7(58)    Sep 2016   [Refereed]
Detecting Cyberbullying with Morphosemantic Patterns
Michal Ptaszynski, Fumito Masui, Yoko Nakajima, Yasutomo Kimura, Rafal Rzepka, Kenji Araki
Joint 8th International Conference on Soft Computing and Intelligent Systems and 17th International Symposium on Advanced Intelligent Systems (SCIS-ISIS 2016)   248-255   Aug 2016   [Refereed]
Pawel Dybala, Rafal Rzepka, Kenji Araki, Kohichi Sayama
Human Language Technology. Challenges for Computer Science and Linguistics, Volume 9561 of the series Lecture Notes in Computer Science   277-289   Jul 2016   [Refereed]
Emotion Prediction System for Japanese Language Considering Compound Sentences, Double Negatives and Adverbs
Rafal Rzepka, Mitsuru Takizawa and Kenji Araki
Proceedings of Language Sense on Computers IJCAI 2016 Workshop   73-79   Jul 2016   [Refereed]
Recognizing and Converting Cockney Rhyming Slang for Cyberbullying And Crime Detection
Radoslaw Komuda, Michal Ptaszynski, Rafal Rzepka, and Kenji Araki
Proceedings of Language Sense on Computers IJCAI 2016 Workshop   67-72   Jul 2016   [Refereed]
Praiseworthy Acts Recognition Using Web-based Knowledge and Semantic Categories
Rafal Rzepka, Kohei Matsumoto, and Kenji Araki,
Proceedings of the 4th Workshop on Sentiment Analysis where AI meets Psychology (SAAIP 2016) co-located with 25th International Joint Conference on Artificial Intelligence (IJCAI 2016), CEUR 1619   41-47   Jul 2016   [Refereed]
Avoiding Green and Colorless Ideas - Text-based Color-Related Knowledge Acquisition for Better Image Understanding
Rafal Rzepka, Keita Mitsuhashi, and Kenji Araki
Proceedings of 4th International Workshop on Artificial Intelligence and Cognition AIC 2016 (CEUR vol. 1895)      Jul 2016   [Refereed]
Towards Joking, Humor Sense Equipped and Emotion Aware Conversational Systems
Pawel Dybala, Motoki Yatsu, Michal Ptaszynski, Rafal Rzepka and Kenji Araki
Advances in Affective and Pleasurable Design : Proceedings of the AHFE 2016 International Conference on Affective and Pleasurable Design"   657-669   Jul 2016   [Refereed]
Michal Mazur, Krzysztof Karolczak, Rafal Rzepka and Kenji Araki
International Journal of Distance Education Technologies (IJDET)   14(3) 52-75   Jul 2016   [Refereed]
Michal Ptaszynski, Fumito Masui, Taisei Nitta, Suzuha Hatakeyama, Yasutomo Kimura, Rafal Rzepka and Kenji Araki
International Journal of Child-Computer Interaction   8 15-30   May 2016   [Refereed]
Marek Krawczyk, Rafal Rzepka and Kenji Araki
Knowledge-Based Systems   1(7)    May 2016   [Refereed]
Global Brain That Makes You Think Twice
Rafal Rzepka, Michal Mazur, Austin Clapp and Kenji Araki
AAAI Spring Symposium on Well-Being Computing: AI Meets Health and Happiness Science   403-410   Mar 2016   [Refereed]
Extracting Patterns of Harmful Expressions for Cyberbullying Detection
Michal Ptaszynski, Fumito Masui, Yasutomo Kimura, Rafal Rzepka and Kenji Araki
Proceedings of the 7th Language and Technology Conference - LTC 2015   370-375   Nov 2015   [Refereed]
Applying Code-Switching Method for E-Learning in English and Japanese Vocabulary Acquisition Systems
Michal Mazur, Rafal Rzepka and Kenji Araki
Proceedings of the 7th Language and Technology Conference - LTC 2015   487-491   Nov 2015   [Refereed]
Haiku Generator That Reads Blogs and Illustrates Them with Sounds and Images
Rafal Rzepka and Kenji Araki
Proceedings of 24th International Joint Conference on Artificial Intelligence (IJCAI 2015)   2496-2502   Jul 2015   [Refereed]
Automatic Narrative Humor Recognition Method Using Machine Learning and Semantic Similarity Based Punchline Detection
Rafal Rzepka, Yusuke Amaya, Motoki Yatsu and Kenji Araki,
Proceedings of IJCAI 2015 International Workshop on Chance Discovery, Data Synthesis and Data Market   25-31   Jul 2015   [Refereed]
Toward Artificial Ethical Learners That Could Also Teach You How to Be a Moral Man
Rafal Rzepka and Kenji Araki
Proceedings of IJCAI 2015 Workshop on Cognitive Knowledge Acquisition and Applications (Cognitum 2015)      Jul 2015   [Refereed]
Replacing Sensors with Text Occurrences for Commonsense Knowledge Acquisition
Rafal Rzepka, Marek Krawczyk and Kenji Araki
Proceedings of IJCAI 2015 Workshop on Cognitive Knowledge Acquisition and Applications (Cognitum 2015)      Jun 2015   [Refereed]
Language-Centered World Simulator for Testing Various Approaches to Machine Consciousness
Rafal Rzepka and Kenji Araki
Proceedings of the Toward a Science of Consciousness (TSC 2015) Conference   210-210   Jun 2015   [Refereed]
Conscienceness – the correlation between Machine Ethics and Machine Consciousness
Radoslaw Komuda, Rafal Rzepka and Kenji Araki
Proceedings of the Toward a Science of Consciousness (TSC 2015) Conference   208-208   Jun 2015   [Refereed]
HokuMed in NTCIR-11 MedNLP-2: Automatic Extraction of Medical Complaints from Japanese Health Records Using Machine Learning and Rule-based Methods
Magnus Ahltorp, Hideyuki Tanushi, Shiho Kitajima, Maria Skeppstedt, Rafal Rzepka and Kenji Araki
Proceedings of the 11th NTCIR Conference   158-162   Dec 2014
Using Time Periods Comparison for Eliminating Chronological Discrepancies between Question and Answer Candidates at QALab NTCIR11 Task
Yasutomo Kimura, Fumitoshi Ashihara, Arnaud Jordan, Keiichi Takamaru, Yuzu Uchida, Hokuto Ototake, Hideyuki Shibuki, Michal Ptaszynski, Rafal Rzepka, Fumito Masui and Kenji Araki,
Proceedings of the 11th NTCIR Conference   550-555   Dec 2014
Medical vocabulary mining using distributional semantics on Japanese patient blogs
Magnus Ahltorp, Maria Skeppstedt, Shiho Kitajima, Rafal Rzepka and Kenji Arak
Proceedings of the 6th International Symposium on Semantic Mining in Biomedicine (SMBM 2014)   69-73   Sep 2014   [Refereed]
Michal Ptaszynski, Fumito Masui, Rafal Rzepka, Kenji Araki
Proceedings of the 18th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2014)   484-493   Sep 2014   [Refereed]
Blog Snippets Based Drug Effects Extraction System Using Lexical and Grammatical Restrictions
Shiho Kitajima, Rafal Rzepka and Kenji Araki
International Journal of Multimedia Data Engineering and Management   5(2) 1-17   Sep 2014   [Refereed][Invited]
Emoticon Recommendation System to Richen Your Online Communication
Yuki Urabe, Rafal Rzepka, Kenji Araki
International Journal of Multimedia Data Engineering and Management   5(1) 14-33   Jun 2014   [Refereed]
Matching Word-Order Variations and Sorting Results for the iEPG Data Search
Denis Kiselev, Rafal Rzepka and Kenji Araki
International Journal of Multimedia Data Engineering and Management   5(1) 52-64   Jun 2014   [Refereed]
Experience of Crowds as a Guarantee for Safe Artificial Self
Rafal RZEPKA and Kenji ARAKI
Tech. Reports from AAAI Spring Symposium on Implementing Selves with Safe Motivational Systems & Self-Improvement   40-44   Mar 2014   [Refereed]
Michal Ptaszynski, Rafal Rzepka, Kenji Araki, Yoshio Momouchi
Comput Speech Lang   28(1) 38-55   2014
Michal Ptaszynski,Rafal Rzepka,Kenji Araki,Yoshio Momouchi
Computer Speech & Language   28(1) 38-55   2014   [Refereed]
Detecting Cyberbullying Entries on Informal School Websites Based on Category Relevance Maximization
Taisei Nitta, Fumito Masui, Michal Ptaszynski, Yasutomo Kimura, Rafal Rzepka, Kenji Araki
Proceedings of the 6th International Joint Conference on Natural Language Processing (IJCNLP 2013)   579-586   Oct 2013   [Refereed]
Shiho Kitajima,Rafal Rzepka,Kenji Araki
2013 IEEE Seventh International Conference on Semantic Computing, Irvine, CA, USA, September 16-18, 2013   383-386   2013   [Refereed]
Denis Kiselev,Rafal Rzepka,Kenji Araki
2013 IEEE Seventh International Conference on Semantic Computing, Irvine, CA, USA, September 16-18, 2013   146-149   2013   [Refereed]
Yuki Urabe,Rafal Rzepka,Kenji Araki
2013 IEEE Seventh International Conference on Semantic Computing, Irvine, CA, USA, September 16-18, 2013   25-31   2013   [Refereed]
Rafal Rzepka,Kenji Araki
13th IEEE International Conference on Data Mining Workshops, ICDM Workshops, TX, USA, December 7-10, 2013   967-970   2013   [Refereed]
Yuki Urabe,Rafal Rzepka,Kenji Araki
Advances in Social Networks Analysis and Mining 2013, ASONAM '13, Niagara, ON, Canada - August 25 - 29, 2013   1460-1461   2013   [Refereed]
Rafal Rzepka,Kenji Araki
Social Informatics - 5th International Conference, SocInfo 2013, Kyoto, Japan, November 25-27, 2013, Proceedings   370-376   2013   [Refereed]
Michal Ptaszynski,Pawel Dybala,Michal Mazur,Rafal Rzepka,Kenji Araki,Yoshio Momouchi
IJDET   11(2) 16-47   2013   [Refereed]
Michal Ptaszynski,Hiroaki Dokoshi,Satoshi Oyama,Rafal Rzepka,Masahito Kurihara,Kenji Araki,Yoshio Momouchi
Expert Syst. Appl.   40(1) 168-176   2013   [Refereed]
RZEPKA RAFAL, ARAKI KENJI
情報処理学会研究報告(CD-ROM)   2012(2) ROMBUNNO.NL-207,NO.14   Aug 2012
Rafal Rzepka, Kenji Araki
IPSJ SIG Notes   2012(14) 1-4   Jul 2012
In this paper we introduce a lexicon of words describing positive and negative consequences of human actions based on Kohlbergian theory of stages that people experience when developing moral reasoning. We briefly introduce our algorithm for an au...
Michal Ptaszynski, Jacek Maciejewski, Pawel Dybala, Rafal Rzepka, Kenji Araki and Yoshio Momouchi
"Speech, Image, and Language Processing for Human Computer Interaction: Multi-Modal Advancements"   234-260   Apr 2012   [Refereed][Invited]
Pawel Dybala,Rafal Rzepka,Kenji Araki,Kohichi Sayama
2012 International Conference on Asian Language Processing, Hanoi, Vietnam, November 13-15, 2012   33-36   2012   [Refereed]
Pawel Dybala,Rafal Rzepka,Kenji Araki,Kohichi Sayama
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012   2587-2590   2012   [Refereed]
Pawel Dybala,Rafal Rzepka,Kenji Araki,Kohichi Sayama
Artificial Intelligence of Humor, Papers from the 2012 AAAI Fall Symposium, Arlington, Virginia, USA, November 2-4, 2012      2012   [Refereed]
HAL Are Your HALgorithms, HAL?-Past, Present and Future of Funny Machines
RZEPKA Rafal
Journal of Japan Society for Fuzzy Theory and Intelligent Informatics   23(5) 696-704   Oct 2011   [Refereed][Invited]
YAMADA Hiroyuki, Rzepka Rafal, ARAKI Kenji
IEICE technical report. Natural language understanding and models of communication   110(400) 59-64   Jan 2011
In this paper we describe our system for retrieving texts using predicate argument structure analysis for queries in natural language. A dependency relation included in a query decides a word score, which is retrieved by defining "retrieval subjec...
Rafal Rzepka,Koichi Muramoto,Kenji Araki
Algorithmic Probability and Friends. Bayesian Prediction and Artificial Intelligence - Papers from the Ray Solomonoff 85th Memorial Conference, Melbourne, VIC, Australia, November 30 - December 2, 2011   318-326   2011   [Refereed]
Rafal Rzepka,Koichi Muramoto,Kenji Araki
AI 2011: Advances in Artificial Intelligence - 24th Australasian Joint Conference, Perth, Australia, December 5-8, 2011. Proceedings   648-657   2011   [Refereed]
Keisuke Takagi,Rafal Rzepka,Kenji Araki
Help Me Help You: Bridging the Gaps in Human-Agent Collaboration, Papers from the 2011 AAAI Spring Symposium, Technical Report SS-11-05, Stanford, California, USA, March 21-23, 2011      2011   [Refereed]
MASUI Fumito, RZEPKA Rafal, KIMURA Yasutomo, FUKUMOTO Jun-ichi, ARAKI Kenji
Journal of Japan Society for Fuzzy Theory and Intelligent Informatics   22(6) 707-719   Dec 2010
In this paper, we propose a method for describing a Japanese word, not with explaining or defining sentences, but with figurative descriptions. Utilizing a simile pattern, our method gathers a large number of noun-noun relations from the World Wid...
PTASZYNSKI Michal, DYBALA Pawel, RZEPKA Rafal, ARAKI Kenji
Journal of Japan Society for Fuzzy Theory and Intelligent Informatics   22(1) 73-89   Feb 2010
This paper presents a method for automatic evaluation of conversational agents. The method consists of several steps. First, an affect analysis system is used to detect users' general emotional engagement in the conversation and classify their spe...
Ayako Fukuda, Kenji Araki, Rafal Rzepka
IPSJ SIG Notes   2010(11) 1-6   Jan 2010
Recently, non-task-oriented dialogue systems are used in various fields. However, almost all users lose interest in communicating with these systems if they use it every day. In order to realize a practical system, a suitable response not only as ...
Kenta Imai, Rafal Rzepka, Kenji Araki
IPSJ SIG Notes   2010(10) 1-7   Jan 2010
In this paper, we propose the system which selects an adequate reply from response candidates generated from different dialogue systems. It is selected by analyzing the response candidates without using information on manually set rules or on doma...
Ptaszynski Michal, Dybala Pawel, Shi Wenhan, Rzepka Rafal, Araki Kenji
International Journal of Biometrics   2(2) 134-154   2010
This paper presents a novel method for estimating speaker's affective states based on two contextual features: valence shifters and appropriateness. Firstly, a system for affect analysis is used to recognise specific types of emotions. We improve ...
Pawel Dybala,Michal Ptaszynski,Rafal Rzepka,Kenji Araki
9th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2010), Toronto, Canada, May 10-14, 2010, Volume 1-3   1433-1434   2010   [Refereed]
Tyson Michael Roberts,Rafal Rzepka,Kenji Araki
Commonsense Knowledge, Papers from the 2010 AAAI Fall Symposium, Arlington, Virginia, USA, November 11-13, 2010      2010   [Refereed]
Michal Ptaszynski,Jacek Maciejewski,Pawel Dybala,Rafal Rzepka,Kenji Araki
Proceedings of the Twenty-Fourth AAAI Conference on Artificial Intelligence, AAAI 2010, Atlanta, Georgia, USA, July 11-15, 2010      2010   [Refereed]
Michal Ptaszynski,Jacek Maciejewski,Pawel Dybala,Rafal Rzepka,Kenji Araki
T. Affective Computing   1(1) 46-59   2010   [Refereed]
Pawel Dybala,Michal Ptaszynski,Jacek Maciejewski,Mizuki Takahashi,Rafal Rzepka,Kenji Araki
JAISE   2(1) 31-48   2010   [Refereed]
Pawel Dybala,Michal Ptaszynski,Rafal Rzepka,Kenji Araki
International Journal on Artificial Intelligence Tools   19(6) 819-856   2010   [Refereed]
DYBALA Pawel, PTASZYNSKI Michal, RZEPKA Rafal, ARAKI Kenji
IEICE Transactions on Information and Systems   92(12) 2394-2401   Dec 2009
The topic of Human Computer Interaction (HCI) has been gathering more and more scientific attention of late. A very important, but often undervalued area in this field is human engagement. That is, a person's commitment to take part in and continu...
PTASZYNSKI Michal, DYBALA Pawel, SHI Wenhan, RZEPKA Rafal, ARAKI Kenji
Journal of Japan Society for Fuzzy Theory and Intelligent Informatics   21(2) 194-213   Apr 2009
We propose a method for affect analysis of textual input in Japanese supported with Web mining. The method is based on a pragmatic reasoning that emotional states of a speaker are conveyed by emotional expressions used in emotive utterances. It me...
Shimokawa Naoaki, Rzepka Rafal, Araki Kenji
IPSJ SIG Notes   2009(2) 121-126   Jan 2009
In this paper we extract topic words from Internet Relay Chat utterances. In such dialogues there are many more spoken language expressions than in blogs or usual Web pages and we presume that the always changing topic is difficult to determine on...

Misc

 
Influence of Emoticons and Adverbs on Affective Perception of Japanese Texts
Rafal Rzepka, Urszula Jagla, Pawel Dybala and Kenji Araki
The 30th Annual Conference of the Japanese Society for Artificial IntelligenceThe 30th Annual Conference of the Japanese Society for Artificial Intelligence   1K4-3H4-OS-17b-3    Jun 2016
Study of Emoticon Selection Process for Future Emoticon Recommendation Systems
Yuki Urabe, Rafal Rzepka, Kenji Araki
The 30th Annual Conference of the Japanese Society for Artificial Intelligence   3H3-OS-17a-2,(17a-2)    Jun 2016
Effectiveness of Topic Model for Review Texts in Hybrid Model Recommendation Method
Shouhei Kitahara, Rafal Rzepka, Kenji Araki
The 30th Annual Conference of the Japanese Society for Artificial Intelligence   1K4-OS-06a-4in1    Jun 2016
Effectiveness of Sentencing Estimation System Using Word Chunks Frequencies Based Lexical Similarity of Judicial Decisions
Tadashi Tanaka and Rafal Rzepka and Kenji Araki
Proceedings of the 50th Language Sense Engineering SIG conference, SIG-LSE-B502   SIG-LSE-B502-1 1-6   Dec 2015
Automatic Judgement of Praiseworthy Acts Using Emotional Expression and Semantic Categories
Kohei Matsumoto and Rafal Rzepka and Kenji Araki
Proceedings of the 50th Language Sense Engineering SIG conference, SIG-LSE-B502   SIG-LSE-B502-3, 17-26   Dec 2015
Extracting ConceptNet Knowledge Triplets from Japanese Wikipedia
Krawczyk Marek, Rafal Rzepka and Kenji Araki
1052-1055   Mar 2015
Performance Evaluation of Season Estimation System Using Seasonal Haiku Indicators
Satsuna Denzumi, Rafal Rzepka, Kenji Araki
36-39   Mar 2015
滝澤満, RZEPKA Rafal, 荒木健治
ファジィシステムシンポジウム講演論文集(CD-ROM)   29 774-777   Sep 2013
KRAWCZYK MAREK, URABE YUKI, RZEPKA RAFAL, ARAKI KENJI
人工知能学会第2種研究会ことば工学研究会資料   43rd 47-54   Jul 2013
北嶋志保, RZEPKA Rafal, 荒木健治
人工知能学会第2種研究会ことば工学研究会資料   43rd 19-23   Jul 2013
RZEPKA RAFAL, ARAKI KENJI
人工知能学会第2種研究会ことば工学研究会資料   43rd 25-33   Jul 2013
天谷祐介, RZEPKA Rafal, 荒木健治
人工知能学会第2種研究会ことば工学研究会資料   43rd 63-69   Jul 2013
Rzepka Rafal, Araki Kenji
ことば工学研究会 : 人工知能学会第2種研究会ことば工学研究会資料   43 25-33   Jul 2013
KRAWCZYK Marek, URABE Yuki, RZEPKA Rafal
ことば工学研究会 : 人工知能学会第2種研究会ことば工学研究会資料   43 47-54   Jul 2013
卜部有記, RZEPKA Rafal, 荒木健治
ファジィシステムシンポジウム講演論文集(CD-ROM)   29th ROMBUNNO.WA2-1   2013
新田大征, 桝井文人, PTASZYNSKI Michal, 木村泰知, RZEPKA Rafal, 荒木健治
人工知能学会全国大会論文集(CD-ROM)   27th ROMBUNNO.203-9IN   2013
ファジィシステムシンポジウム講演論文集   28 233-238   Sep 2012
ファジィシステムシンポジウム講演論文集   28 251-256   Sep 2012
ファジィシステムシンポジウム講演論文集   28 420-425   Sep 2012
PTASZYNSKI MICHAL, RZEPKA RAFAL, ARAKI KENJI, MOMOUCHI YOSHIO
言語処理学会年次大会発表論文集   18th (CD-ROM) ROMBUNNO.B5-1   Mar 2012
PTASZYNSKI MICHAL, RZEPKA RAFAL, ARAKI KENJI, MOMOUCHI YOSHIO
言語処理学会年次大会発表論文集   18th (CD-ROM) ROMBUNNO.B2-4   Mar 2012
PTASZYNSKI MICHAL, RZEPKA RAFAL, ARAKI KENJI, MOMOUCHI YOSHIO
言語処理学会年次大会発表論文集   18th (CD-ROM) ROMBUNNO.F3-6   Mar 2012
RZEPKA RAFAL, ROBERTS TYSON, ARAKI KENJI
言語処理学会年次大会発表論文集   18th (CD-ROM) ROMBUNNO.P2-35   Mar 2012
PTASZYNSKI MICHAL, DYBALA PAWEL, RZEPKA RAFAL, ARAKI KENJI, MOMOUCHI YOSHIO
言語処理学会年次大会発表論文集   18th (CD-ROM) ROMBUNNO.B2-9   Mar 2012
DYBALA PAWEL, PTASZYNSKI MICHAL, RZEPKA RAFAL, ARAKI KENJI, SAYAMA KOHICHI
人工知能学会全国大会論文集(CD-ROM)   26th ROMBUNNO.3P1-IOS-2A-5   2012
MAZUR MICHAL, RZEPKA RAFAL, ARAKI KENJI
人工知能学会全国大会論文集(CD-ROM)   26th ROMBUNNO.3P2-IOS-2B-1   2012
DANKOV SVETOSLAV, RZEPKA RAFAL, ARAKI KENJI
人工知能学会全国大会論文集(CD-ROM)   26th ROMBUNNO.3P1-IOS-2A-4   2012
ことば工学研究会 : 人工知能学会第2種研究会ことば工学研究会資料   39(0) 13-18   Nov 2011
堂腰裕明, 小山聡, 栗原正仁, プタシンスキ ミハウ, ラファウ ジェプカ, 荒木健治
情報処理北海道シンポジウム講演論文集   2011 223-224   Oct 2011
ファジィシステムシンポジウム講演論文集   27 112-115   Sep 2011
ファジィシステムシンポジウム講演論文集   27 916-919   Sep 2011
Muramoto Koichi, Rzepka Rafal, Araki Kenji
情報科学技術フォーラム講演論文集   10(2) 217-220   Sep 2011
ファジィシステムシンポジウム講演論文集   26 920-924   Sep 2010
Rzepka Rafal, Higuchi Shinsuke, Ptaszynski Michal, Dybala Pawel, Araki Kenji
Transactions of the Japanese Society for Artificial Intelligence   25(1) 114-121   2010
In this paper we propose a method for generating simple but semantically correct replies to user inputs which are not related to a given task of a task-oriented information kiosk or any other natural language interface placed in a public place. We...
Rzepka Rafal, Higuchi Shinsuke, Ptaszynski Michal, Dybala Pawel, Araki Kenji
Information and Media Technologies   5(1) 216-223   2010
In this paper we propose a method for generating simple but semantically correct replies to user inputs which are not related to a given task of a task-oriented information kiosk or any other natural language interface placed in a public place. We...
長谷川大, ジェプカ ラファウ, 荒木健治
言語処理学会年次大会発表論文集   15th 509-511   Mar 2009
Takamaru Keiichi, Shibuki Hideyuki, Kimura Yasutomo, Matsuhara Masafumi, Rzepka Rafal, Murakami Koji
情報科学技術フォーラム講演論文集   7(2) 233-234   Aug 2008
MATSUHARA Masafumi, KIMURA Yasutomo, SHIBUKI Hideyuki, TAKAMARU Keiichi, RZEPKA Rafal, MURAKAMI Koji
情報科学技術フォーラム講演論文集   7(2) 235-236   Aug 2008
KIMURA Yasutomo, SHIBUKI Hideyuki, TAKAMARU Keiichi, MATSUHARA Masafumi, RZEPKA Rafal, MURAKAMI Koji
情報科学技術フォーラム講演論文集   7(2) 237-238   Aug 2008
Shi Wenhan, Rzepka Rafal, Araki Kenji
情報科学技術フォーラム講演論文集   7(2) 267-268   Aug 2008
人工知能学会全国大会論文集   16 1-3   2002

Books etc

 
Proceedings of the Linguistic and Cognitive Approaches To Dialog Agents Workshop co-located with the 27th International Joint Conference on Artificial Intelligence and the 23rd European Conference on Artificial Intelligence (IJCAI-ECAI 2018)
Rafal Rzepka, Jordi Vallverdú, Andre Wlodarczyk: (Part:Joint Editor, International)
CEUR-WS   Sep 2018   
Artificial General Intelligence - 11th International Conference, AGI 2018
Matthew Iklé, Arthur Franz, Rafal Rzepka, Ben Goertzel (Part:Joint Editor, International)
Springer   Aug 2018   
AI with Empathy: language, emotions, ethics, humor, common sense
Rafal RZEPKA (Part:Joint Work, common sense, machine ethics)
Morikita Publishing House   Jun 2016   
Rethinking Machine Ethics in the Age of Ubiquitous Technology
Rafal Rzepka and Kenji Araki (Part:Contributor, Semantic Analysis of Bloggers Experiences as a Knowledge Source of Average Human Morality)
IGI Global, Hershey, PA, USA   May 2015   
Machine Medical Ethics (Intelligent Systems, Control and Automation: Science and Engineering Series)
Rafal Rzepka and Kenji Araki (Part:Contributor, ELIZA Fifty Years Later: An Automatic Therapist Using Bottom-Up and Top-Down Approaches)
Springer International Publishing   Sep 2014   ISBN:978-3-319-08107-6
Our methods for realizing a moral artificial agent assume that the wisdom of crowds can equip a machine with the enormous number of experiences that are the source of its ethical reasoning. Every second, people with different cultural, religious o...

Conference Activities & Talks

 
Common Sense Morality for Machines - Are Our Shared Experiences the Only Solution for Safe Artificial Intelligence? [Invited]
Rafal RZEPKA
Morality mod Science Seminar   21 Sep 2018   
Wisdom of Crowds as The Source of The Human Moral Sense for Artificial Intelligence [Invited]
Rafal RZEPKA
National Information Academy Seminar   2 Aug 2018   
From Signals, through Words, to Safe Behavior - Value Alignment by Human Experience Analysis [Invited]
Rafal RZEPKA
Invited Talk at the 8th International Workshop on Signal Design and its Applications in Communications (IWSDA’17)   28 Sep 2017   
Automatic Text Analysis and Generation - Less and More Serious Applications [Invited]
Rafal RZEPKA
Invited Talk at Jagiellonian University   Dec 2015   
Pros and Cons of Borrowing Morality from P2P Civilization [Invited]
Rafal RZEPKA
AAAI Spring Symposium   27 Mar 2014   
"Artificial Common Sense in a Pill" [Invited]
Rafal RZEPKA
Invited Lecture at Copernicus University   May 2011   
"Japanese machines know what you feel - about interdisciplinary approach to AI" [Invited]
Rafal RZEPKA
Invited Talk at Adam Mickiewicz University   Feb 2010   
"Why does my robot read your blog - about new perspectives for AI in the Internet era" [Invited]
Rafal RZEPKA
Invited Talk at Szczecin Institute of Technology   Feb 2010   
http://arakilab.media.eng.hokudai.ac.jp/~kabura/Rafal_Rzepka/Papers.html
Conference papers list

Research Grants & Projects

 
Development of a System for Collecting Context Data for Large-Scale Inverse Reinforcement Learning
JSPS: Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2017 - Mar 2021    Investigator(s): Rafal RZEPKA
ウェブマイニングによる人間行動の倫理性推論アルゴリズムの構築
JSPS: Kaken Grant
Project Year: Apr 2012 - Mar 2014    Investigator(s): RZEPKA Rafal
世評・感情・倫理を考慮して柔軟に有害表現を検出する技術の開発と学校非公式サイト監視への応用
JSPS: Kakenhi Grant
Project Year: Apr 2012 - Mar 2014    Investigator(s): Fumito MASUI
情報の遷移にダイナミックに追従するインターネット単語帳システムの開発
JSPS: Kakenhi Grant
Project Year: Apr 2008 - Mar 2011    Investigator(s): Fumito Masui
Communication Ability Development Toy with Common Sense Dialogue System
Nissan Foundation: 
Project Year: Apr 2005 - Mar 2008    Investigator(s): Rafal Rzepka