WISDOM X, DISAANA and D-SUMM: Large-scale NLP Systems for Analyzing Textual Big Data

no code implementations • COLING 2016 • Junta Mizuno, Masahiro Tanaka, Kiyonori Ohtake, Jong-Hoon Oh, Julien Kloetzer, Chikara Hashimoto, Kentaro Torisawa

We demonstrate our large-scale NLP systems: WISDOM X, DISAANA, and D-SUMM.

Open-Domain Question Answering

Toward Future Scenario Generation: Extracting Event Causality Exploiting Semantic Relation, Context, and Association Features

no code implementations • ACL 2014 • Chikara Hashimoto, Kentaro Torisawa, Julien Kloetzer, Motoki Sano, Istv{\'a}n Varga, Jong-Hoon Oh, Yutaka Kidawara

Decision Making Relation

Aid is Out There: Looking for Help from Tweets during a Large Scale Disaster

no code implementations • ACL 2013 • Istv{\'a}n Varga, Motoki Sano, Kentaro Torisawa, Chikara Hashimoto, Kiyonori Ohtake, Takao Kawai, Jong-Hoon Oh, Stijn De Saeger

Why-Question Answering using Intra- and Inter-Sentential Causal Relations

no code implementations • ACL 2013 • Jong-Hoon Oh, Kentaro Torisawa, Chikara Hashimoto, Motoki Sano, Stijn De Saeger, Kiyonori Ohtake

Question Answering

Minimally Supervised Method for Multilingual Paraphrase Extraction from Definition Sentences on the Web

no code implementations • NAACL 2013 • Yulan Yan, Chikara Hashimoto, Kentaro Torisawa, Takao Kawai, Jun{'}ichi Kazama, Stijn De Saeger

Large-Scale Acquisition of Entailment Pattern Pairs by Exploiting Transitivity

no code implementations • EMNLP 2015 • Julien Kloetzer, Kentaro Torisawa, Chikara Hashimoto, Jong-Hoon Oh

Natural Language Inference Question Answering +1

Intra-sentential Zero Anaphora Resolution using Subject Sharing Recognition

no code implementations • EMNLP 2015 • Ryu Iida, Kentaro Torisawa, Chikara Hashimoto, Jong-Hoon Oh, Julien Kloetzer

Machine Translation

Two-Stage Method for Large-Scale Acquisition of Contradiction Pattern Pairs using Entailment

no code implementations • EMNLP 2013 • Julien Kloetzer, Stijn De Saeger, Kentaro Torisawa, Chikara Hashimoto, Jong-Hoon Oh, Motoki Sano, Kiyonori Ohtake

Decision Making

Why Question Answering using Sentiment Analysis and Word Classes

no code implementations • EMNLP 2012 • Jong-Hoon Oh, Kentaro Torisawa, Chikara Hashimoto, Takuya Kawada, Stijn De Saeger, Jun{'}ichi Kazama, Yiou Wang

Question Answering Sentiment Analysis

Excitatory or Inhibitory: A New Semantic Orientation Extracts Contradiction and Causality from the Web

no code implementations • EMNLP 2012 • Chikara Hashimoto, Kentaro Torisawa, Stijn De Saeger, Jong-Hoon Oh, Jun{'}ichi Kazama

Natural Language Inference Question Answering

Million-scale Derivation of Semantic Relations from a Manually Constructed Predicate Taxonomy

no code implementations • COLING 2014 • Motoki Sano, Kentaro Torisawa, Julien Kloetzer, Chikara Hashimoto, Istv{\'a}n Varga, Jong-Hoon Oh

WISDOM2013: A Large-scale Web Information Analysis System

no code implementations • IJCNLP 2013 • Masahiro Tanaka, Stijn De Saeger, Kiyonori Ohtake, Chikara Hashimoto, Makoto Hijiya, Hideaki Fujii, Kentaro Torisawa

Recognizing Complex Negation on Twitter

no code implementations • PACLIC 2015 • Junta Mizuno, Canasai Kruengkrai, Kiyonori Ohtake, Chikara Hashimoto, Kentaro Torisawa, Julien Kloetzer, Kentaro Inui

Negation

Weakly Supervised Multilingual Causality Extraction from Wikipedia

no code implementations • IJCNLP 2019 • Chikara Hashimoto

We present a method for extracting causality knowledge from Wikipedia, such as Protectionism -{\textgreater} Trade war, where the cause and effect entities correspond to Wikipedia articles.