A Multilingual Bag-of-Entities Model for Zero-Shot Cross-Lingual Text Classification

Sosuke Nishikawa, Ikuya Yamada, Yoshimasa Tsuruoka, Isao Echizen
CoNLL 2022

Entity Embedding Completion for Wide-Coverage Entity Disambiguation

Daisuke Oba, Ikuya Yamada, Naoki Yoshinaga, Masashi Toyoda
EMNLP 2022 Findings

EASE: Entity-Aware Contrastive Learning of Sentence Embedding

Sosuke Nishikawa, Ryokan Ri, Ikuya Yamada, Yoshimasa Tsuruoka, Isao Echizen
NAACL 2022

mLUKE: The Power of Entity Representations in Multilingual Pretrained Language Models

Ryokan Ri, Ikuya Yamada, Yoshimasa Tsuruoka
ACL 2022

Efficient Passage Retrieval with Hashing for Open-domain Question Answering

Ikuya Yamada, Akari Asai, Hannaneh Hajishirzi
ACL 2021

LUKE: Deep Contextualized Entity Representations with Entity-aware Self-attention

Ikuya Yamada, Akari Asai, Hiroyuki Shindo, Hideaki Takeda, Yuji Matsumoto
EMNLP 2020

Wikipedia2Vec: An Efficient Toolkit for Learning and Visualizing the Embeddings of Words and Entities from Wikipedia

Ikuya Yamada, Akari Asai, Jin Sakuma, Hiroyuki Shindo, Hideaki Takeda, Yoshiyasu Takefuji, Yuji Matsumoto
EMNLP (system demonstrations) 2020

Neural Attentive Bag-of-Entities Model for Text Classification

Ikuya Yamada, Hiroyuki Shindo
CoNLL 2019

Trick Me If You Can: Human-in-the-loop Generation of Adversarial Examples for Question Answering

Eric Wallace, Pedro Rodriguez, Shi Feng, Ikuya Yamada, Jordan Boyd-Graber
TACL 2019

Representation Learning of Entities and Documents from Knowledge Base Descriptions

Ikuya Yamada, Hiroyuki Shindo, Yoshiyasu Takefuji

Studio Ousia's Quiz Bowl Question Answering System

Ikuya Yamada, Ryuji Tamaki, Hiroyuki Shindo, Yoshiyasu Takefuji
First NIPS 17 Competition, The Springer Series on Challenges in Machine Learning 2018

Learning Distributed Representations of Texts and Entities from Knowledge Base

Ikuya Yamada, Hiroyuki Shindo, Hideaki Takeda, Yoshiyasu Takefuji
TACL 2017

Segment-Level Neural Conditional Random Fields for Named Entity Recognition

Motoki Sato, Hiroyuki Shindo, Ikuya Yamada, Yuji Matsumoto

Named Entity Disambiguation for Noisy Text

Yotam Eshel, Noam Cohen, Kira Radinsky, Shaul Markovitch, Ikuya Yamada, Omer Levy
CoNLL 2017


  • 2nd Place: NeurIPS 2020 EfficientQA Competition (Systems Under 6GB Track), 2020
  • Winner: NIPS 2017 Human-Computer Question Answering Competition, 2017
  • 2nd Place: WSDM Cup 2017 Triple Scoring Task, 2017
  • Winner: Shared Task in NAACL 2016 Workshop on Human-Computer QA, 2016
  • Winner: Shared Task #1 in ACL 2015 Workshop on Noisy User-generated Text, 2015
  • Winner: NEEL Challenge in WWW 2015 Workshop on Making Sense of Microposts, 2015