Selected Publications

• Ikuya Yamada, Hiroyuki Shindo (NAIST), Hideaki Takeda (NII), Yoshiyasu Takefuji (Keio): Learning Distributed Representations of Texts and Entities from Knowledge Base, Transactions of the Association for Computational Linguistics (TACL), 2017 (to appear) [Paper]
• Ikuya Yamada, Motoki Sato (NAIST), Hiroyuki Shindo (NAIST): Ensemble of Neural Classifiers for Scoring Knowledge Base Triples, WSDM Cup (Cambridge, UK), 2017 [Paper] (Ranked 2nd in the competition)
• Ikuya Yamada, Hiroyuki Shindo (NAIST), Hideaki Takeda (NII), Yoshiyasu Takefuji (Keio): Joint Learning of the Embedding of Words and Entities for Named Entity Disambiguation, The SIGNLL Conference on Computational Natural Language Learning (CoNLL) (Berlin, Germany), 2016 [Paper] [Slides]
• Ikuya Yamada, Hideaki Takeda (NII), Yoshiyasu Takefuji (Keio): Enhancing Named Entity Recognition in Twitter Messages Using Entity Linking, ACL 2015 Workshop on Noisy User-generated Text (Beijing, China), 2015 [Paper] [Slides] (Shared task winner)
• Ikuya Yamada, Hideaki Takeda (NII), Yoshiyasu Takefuji (Keio): An End-to-End Entity Linking Approach for Tweets, WWW 2015 Workshop on Making Sense of Microposts (Florence, Italy), 2015, pp.55-56 [Paper] [Slides] (Competition winner)
• Ikuya Yamada, Tomotaka Ito, Shinsuke Takagi, Shinnosuke Usami, Hideaki Takeda (NII), Yoshiyasu Takefuji (Keio): Evaluating the Helpfulness of Linked Entities to Readers, 26th ACM Conference on Hypertext and Social Media (Santiago Downtown, Chile), 2014, pp.169-178 [Paper] [Slides] [Dataset]

Awards

• Shared task winner: Shared Task #1 in ACL 2015 Workshop on Noisy User-generated Text (W-NUT 2015), Beijing, China, 2015 [Paper] [Slides] [Summary Paper]
• Competition winner: NEEL Challenge in WWW 2015 Workshop on Making Sense of Microposts (#Microposts 2015), Florence, Italy, 2015 [Paper] [Slides] [Summary Slides] [Summary Paper]
• Shared task winner: Shared Task in NAACL 2016 Workshop on Human-Computer QA, San Diego, USA, 2016 [Slides] [Video]
• Second place: WSDM Cup 2017 Triple Scoring Task, Cambridge, UK, 2017
• Kaggle Master, 2016
• Keio SFC Student Award: Dean's Award, Keio University Shonan Fujisawa Campus, 2016

Videos

Open-source Projects

• mprpc: a fast Python RPC library
• gsocketpool: a simple connection pool for Python gevent
• mojimoji: a Python lightweight normalizer for Japanese characters

Working Experience

• 2007- Co-founder, CTO Studio Ousia Inc.
• 2003-2005: Vice President, CTO Fractalist Inc. (previously listed on the NSE Centrex (2007-2010) and acquired by motionBEAT Inc. in 2010)
• 2000-2005: Founder, CEO Newrong Inc. (acquired by Fractalist Inc. in 2005)