activity
20192025
most citedHitachi at MRP 2019: Unified Encoder-to-Biaffine Network for Cross-Framework Meaning Representation Parsing

5 citations · 8 across the 8 of their papers we have counts for

collaborators

8 papers

cs.CV2025

Can Visual Encoder Learn to See Arrows?

Naoyuki Terashita, Yusuke Tozaki, Hideaki Omote +4

The diagram is a visual representation of a relationship illustrated with edges (lines or arrows), which is widely used in industrial and scientific communication. Although recogni…

cs.CL2023

How does the task complexity of masked pretraining objectives affect downstream performance?

Atsuki Yamaguchi, Hiroaki Ozaki, Terufumi Morishita +2

Masked language modeling (MLM) is a widely used self-supervised pretraining objective, where a model needs to predict an original token that is replaced with a mask given contexts.…

cs.CL2023★ 2 cited

Hitachi at SemEval-2023 Task 3: Exploring Cross-lingual Multi-task Strategies for Genre and Framing Detection in Online News

Yuta Koreeda, Ken-ichi Yokote, Hiroaki Ozaki +3

This paper explains the participation of team Hitachi to SemEval-2023 Task 3 "Detecting the genre, the framing, and the persuasion techniques in online news in a multi-lingual setu…

cs.CL2023

Controlling keywords and their positions in text generation

Yuichi Sasazawa, Terufumi Morishita, Hiroaki Ozaki +2

One of the challenges in text generation is to control text generation as intended by the user. Previous studies proposed specifying the keywords that should be included in the gen…

cs.LG2022

Rethinking Fano's Inequality in Ensemble Learning

Terufumi Morishita, Gaku Morio, Shota Horiguchi +2

We propose a fundamental theory on ensemble learning that answers the central question: what factors make an ensemble system good or bad? Previous studies used a variant of Fano's…

cs.CL2021

Team Hitachi @ AutoMin 2021: Reference-free Automatic Minuting Pipeline with Argument Structure Construction over Topic-based Summarization

Atsuki Yamaguchi, Gaku Morio, Hiroaki Ozaki +2

This paper introduces the proposed automatic minuting system of the Hitachi team for the First Shared Task on Automatic Minuting (AutoMin-2021). We utilize a reference-free approac…

cs.CL2020★ 1 cited

Hitachi at SemEval-2020 Task 12: Offensive Language Identification with Noisy Labels using Statistical Sampling and Post-Processing

Manikandan Ravikiran, Amin Ekant Muljibhai, Toshinori Miyoshi +3

In this paper, we present our participation in SemEval-2020 Task-12 Subtask-A (English Language) which focuses on offensive language identification from noisy labels. To this end,…

cs.CL2019★ 5 cited

Hitachi at MRP 2019: Unified Encoder-to-Biaffine Network for Cross-Framework Meaning Representation Parsing

Yuta Koreeda, Gaku Morio, Terufumi Morishita +2

This paper describes the proposed system of the Hitachi team for the Cross-Framework Meaning Representation Parsing (MRP 2019) shared task. In this shared task, the participating s…