Senior AI Research Scientist

• Nov 2021 - Present

Owner & NLP/ML Engineer

• Feb 2019 - Present

* Worked as a consultant for early-to-mid stage startups in the US/Japan on their ML strategies * Worked on QA and NER with Stduio Ousia (ranked #2 at TAC KBP 2019 fine-grained NER track) * Built educational research and open-source projects with RIKEN (TEASPN, NanigoNet, and Github Typo Corpus) * Built a free, Web-based AllenNLP course in collaboration with with Matt Gardner at Allen Institute for AI * Worked as a consultant for early-to-mid stage startups in the US/Japan on their ML strategies * Worked on QA and NER with Stduio Ousia (ranked #2 at TAC KBP 2019 fine-grained NER track) * Built educational research and open-source projects with RIKEN (TEASPN, NanigoNet, and Github Typo Corpus) * Built a free, Web-based AllenNLP course in collaboration with with Matt Gardner at Allen Institute for AI

Senior Machine Learning Engineer

• Feb 2015 - Feb 2019

* Built automatic grading technologies for Duolingo English Test using neural networks * Led data creation and analysis for various research projects, including user behavior analysis and second language acquisition modeling (SLAM) shared task * Led the content creation of Chinese, Japanese, and Korean from English courses * Built automatic grading technologies for Duolingo English Test using neural networks * Led data creation and analysis for various research projects, including user behavior analysis and second language acquisition modeling (SLAM) shared task * Led the content creation of Chinese, Japanese, and Korean from English courses

Lead Scientist at Rakuten Institute of Technology, New York

• Oct 2010 - Feb 2015

* Developed machine transliteration (NLP2011 paper award) and machine translation algorithms for the largest Japanese e-commerce website (Rakuten) * Built a Chinese/Japanese word segmentation / morphological analyzer (RakutenMA) * Developed a writing support system for English as a Second Language (ESL) learners * Developed machine transliteration (NLP2011 paper award) and machine translation algorithms for the largest Japanese e-commerce website (Rakuten) * Built a Chinese/Japanese word segmentation / morphological analyzer (RakutenMA) * Developed a writing support system for English as a Second Language (ESL) learners

Baidu Japan, Inc. Research & Development Engineer

• Apr 2009 - Oct 2010

* Led NLP data initiatives including Unnatural language processing contest and Baidu mobile corpus and timed corpus * Improved the ranking and page analysis algorithms including spam detection and emoticon search for Baidu mobile search * Worked as a consultant on various NLP projects including Japanese Input Method BaiduType * Led NLP data initiatives including Unnatural language processing contest and Baidu mobile corpus and timed corpus * Improved the ranking and page analysis algorithms including spam detection and emoticon search for Baidu mobile search * Worked as a consultant on various NLP projects including Japanese Input Method BaiduType

Research Intern

• Apr 2008 - Jul 2008

Under the guidance of Hisami Suzuki. Worked on Japanese query alteration in the NLP (Natural Language Processing) Group. Under the guidance of Hisami Suzuki. Worked on Japanese query alteration in the NLP (Natural Language Processing) Group.

Software Engineer Summer Intern

• Aug 2005 - Sep 2005

Under the guidance of Dekang Lin and Jun Wu. Worked on query suggestion in Japanese, which is now public. Under the guidance of Dekang Lin and Jun Wu. Worked on query suggestion in Japanese, which is now public.