Search Results for author: Tomoko Ohkuma

Found 26 papers, 0 papers with code

Aspect-Similarity-Aware Historical Influence Modeling for Rating Prediction

no code implementations EcomNLP (COLING) 2020 Ryo Shimura, Shotaro Misawa, Masahiro Sato, Tomoki Taniguchi, Tomoko Ohkuma

Previous laboratory studies have indicated that the ratings recorded by these systems differ from the actual evaluations of the users, owing to the influence of historical ratings in the system.

Distinctive Slogan Generation with Reconstruction

no code implementations EcomNLP (COLING) 2020 Shotaro Misawa, Yasuhide Miura, Tomoki Taniguchi, Tomoko Ohkuma

To generate a slogan, we apply an encoder–decoder model which has shown effectiveness in many kinds of natural language generation tasks, such as abstractive summarization.

Abstractive Text Summarization Decoder +1

Quantifying Appropriateness of Summarization Data for Curriculum Learning

no code implementations EACL 2021 Ryuji Kano, Takumi Takahashi, Toru Nishino, Motoki Taniguchi, Tomoki Taniguchi, Tomoko Ohkuma

We conduct experiments on three summarization models; one pretrained model and two non-pretrained models, and verify our method improves the performance.

Translation

A Large-Scale Corpus of E-mail Conversations with Standard and Two-Level Dialogue Act Annotations

no code implementations COLING 2020 Motoki Taniguchi, Yoshihiro Ueda, Tomoki Taniguchi, Tomoko Ohkuma

To assess the difficulty of DA recognition on our corpus, we evaluate several models, including a pre-trained contextual representation model, as our baselines.

Multi-Task Learning

Unbiased Learning for the Causal Effect of Recommendation

no code implementations11 Aug 2020 Masahiro Sato, Sho Takemori, Janmajay Singh, Tomoko Ohkuma

This paper proposes an unbiased learning framework for the causal effect of recommendation.

Recommendation Systems

Submodular Bandit Problem Under Multiple Constraints

no code implementations1 Jun 2020 Sho Takemori, Masahiro Sato, Takashi Sonoda, Janmajay Singh, Tomoko Ohkuma

Thus, motivated by diversified retrieval considering budget constraints, we introduce a submodular bandit problem under the intersection of $l$ knapsacks and a $k$-system constraint.

Recommendation Systems Retrieval

Integrating Entity Linking and Evidence Ranking for Fact Extraction and Verification

no code implementations WS 2018 Motoki Taniguchi, Tomoki Taniguchi, Takumi Takahashi, Yasuhide Miura, Tomoko Ohkuma

A simple entity linking approach with text match is used as the document selection component, this component identifies relevant documents for a given claim by using mentioned entities as clues.

Entity Linking Natural Language Inference +3

Character-based Bidirectional LSTM-CRF with words and characters for Japanese Named Entity Recognition

no code implementations WS 2017 Shotaro Misawa, Motoki Taniguchi, Yasuhide Miura, Tomoko Ohkuma

The contributions of this work are (1) verifying the effectiveness of the state-of-the-art NER model for Japanese, (2) proposing a neural model for predicting a tag for each character using word and character information.

named-entity-recognition Named Entity Recognition +2

MedNLPDoc: Japanese Shared Task for Clinical NLP

no code implementations WS 2016 Eiji Aramaki, Yoshinobu Kano, Tomoko Ohkuma, Mizuki Morita

Due to the recent replacements of physical documents with electronic medical records (EMR), the importance of information processing in medical fields has been increased.

Information Retrieval

A Simple Scalable Neural Networks based Model for Geolocation Prediction in Twitter

no code implementations WS 2016 Yasuhide Miura, Motoki Taniguchi, Tomoki Taniguchi, Tomoko Ohkuma

In the test run of the task, the model achieved the accuracy of 40. 91{\%} and the median distance error of 69. 50 km in message-level prediction and the accuracy of 47. 55{\%} and the median distance error of 16. 13 km in user-level prediction.

Denoising

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