Kei Wakabayashi

According to our database, Kei Wakabayashi authored at least 43 papers between 2007 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Phrase-Level Topic Modeling Based on Joint Embedding Space of Words, Phrases and Documents.

Zikai Zhou, Kei Wakabayashi, Hiroyoshi Ito

J. Inf. Process., 2024

2023

Keyphrase-based Refinement Functions for Efficient Improvement on Document-Topic Association in Human-in-the-Loop Topic Models.

Muhammad Haseeb U. R. Rehman Khan, Kei Wakabayashi

J. Inf. Process., 2023

Reducing Human Effort in Keyphrase-Based Human-in-the-Loop Topic Models: A Method for Keyphrase Recommendations.

Muhammad Haseeb U. R. Rehman Khan, Kei Wakabayashi

Proceedings of the Information Integration and Web Intelligence, 2023

Exploring the Impact of Syntactic Structure Information on Unknown Entity Recognition in Transformer-based Natural Language Understanding.

Rui Yang, Farnoosh Javar, Kei Wakabayashi, Johane Takeuchi

Proceedings of the 14th IIAI International Congress on Advanced Applied Informatics, 2023

Hybrid Crowd-AI Learning for Human-Interpretable Symbolic Rules in Image Classification.

Ayame Shimizu, Kei Wakabayashi, Masaki Matsubara, Hiroyoshi Ito, Atsuyuki Morishima

Proceedings of the 14th IIAI International Congress on Advanced Applied Informatics, 2023

2022

Effect of Label Redundancy in Crowdsourcing for Training Machine Learning Models.

Ayame Shimizu, Kei Wakabayashi

J. Data Intell., 2022

HAEM: Obtaining Higher-Quality Classification Task Results with AI Workers.

Yu Yamashita, Hiroyoshi Ito, Kei Wakabayashi, Masaki Kobayashi, Atsuyuki Morishima

Proceedings of the WebSci '22: 14th ACM Web Science Conference 2022, Barcelona, Spain, June 26, 2022

2021

Segmentation-Based Formulation of Slot Filling Task for Better Generative Modeling.

Kei Wakabayashi, Johane Takeuchi, Mikio Nakano

Proceedings of the Conversational AI for Natural Human-Centric Interaction, 2021

Examining Effect of Label Redundancy for Machine Learning using Crowdsourcing.

Ayame Shimizu, Kei Wakabayashi

Proceedings of the iiWAS2021: The 23rd International Conference on Information Integration and Web Intelligence, Linz, Austria, 29 November 2021, 2021

Efficient Training Method for Phrase Extraction Models using Natural Language Explanations.

Ryosuke Saito, Koga Kobayashi, Kei Wakabayashi

Proceedings of the iiWAS2021: The 23rd International Conference on Information Integration and Web Intelligence, Linz, Austria, 29 November 2021, 2021

Active Learning for Extracting Technical Terms Covering Multiword Phrases.

Fumimaro Odakura, Koga Kobayashi, Kei Wakabayashi

Proceedings of the iiWAS2021: The 23rd International Conference on Information Integration and Web Intelligence, Linz, Austria, 29 November 2021, 2021

Human+AI Crowd Task Assignment Considering Result Quality Requirements.

Masaki Kobayashi, Kei Wakabayashi, Atsuyuki Morishima

Proceedings of the Ninth AAAI Conference on Human Computation and Crowdsourcing, 2021

2020

Partial Annotation Scheme for Active Learning on Named Entity Recognition Tasks.

Koga Kobayashi, Kei Wakabayashi

J. Data Intell., 2020

Computational Division of Labor with Human and AI Workers.

Atsuyuki Morishima, Masaki Matsubara, Kei Wakabayashi, Nobutaka Suzuki, Hiroyoshi Ito

IEEE Data Eng. Bull., 2020

Quality-aware Dynamic Task Assignment in Human+AI Crowd.

Masaki Kobayashi, Kei Wakabayashi, Atsuyuki Morishima

Proceedings of the Companion of The 2020 Web Conference 2020, 2020

Effect of Semantic Content Generalization on Pointer Generator Network in Text Summarization.

Yixuan Wu, Kei Wakabayashi

Proceedings of the iiWAS '20: The 22nd International Conference on Information Integration and Web-based Applications & Services, Virtual Event / Chiang Mai, Thailand, November 30, 2020

Mitigating Effect of Dictionary Matching Errors in Distantly Supervised Named Entity Recognition.

Koga Kobayashi, Kei Wakabayashi

Proceedings of the iiWAS '20: The 22nd International Conference on Information Integration and Web-based Applications & Services, Virtual Event / Chiang Mai, Thailand, November 30, 2020

Traffic-aware Access Control List Reconstruction.

Kei Wakabayashi, Daisuke Kotani, Yasuo Okabe

Proceedings of the 2020 International Conference on Information Networking, 2020

Batch Prioritization of Data Labeling Tasks for Training Classifiers.

Masanari Kimura, Kei Wakabayashi, Atsuyuki Morishima

Proceedings of the Eighth AAAI Conference on Human Computation and Crowdsourcing, 2020

Human-in-the-loop Approach towards Dual Process AI Decisions.

Hikaru Uchida, Masaki Matsubara, Kei Wakabayashi, Atsuyuki Morishima

Proceedings of the 2020 IEEE International Conference on Big Data (IEEE BigData 2020), 2020

2019

Named entity recognition using point prediction and active learning.

Koga Kobayashi, Kei Wakabayashi

Proceedings of the 21st International Conference on Information Integration and Web-based Applications & Services, 2019

Events Insights Extraction from Twitter Using LDA and Day-Hashtag Pooling.

Muhammad Haseeb U. R. Rehman Khan, Kei Wakabayashi, Satoshi Fukuyama

Proceedings of the 21st International Conference on Information Integration and Web-based Applications & Services, 2019

Estimation Method of L2 Learners' Second Language Ability by using Features in Conversation.

Xinnan Chen, Muhammad Haseeb U. R. Rehman Khan, Kei Wakabayashi

Proceedings of the 21st International Conference on Information Integration and Web-based Applications & Services, 2019

Searching Behavior Analysis of Online Shopping Based on Information Content of Query Words.

Genkou Ou, Kei Wakabayashi, Tetsuji Satoh

Proceedings of the 8th International Congress on Advanced Applied Informatics, 2019

Silent HMMs: Generalized Representation of Hidden Semi-Markov Models and Hierarchical HMMs.

Kei Wakabayashi

Proceedings of the 14th International Conference on Finite-State Methods and Natural Language Processing, 2019

Named Entity Recognition by Character-Based Word Classification Using a Domain Specific Dictionary.

Makoto Hiramatsu, Kei Wakabayashi, Jun Harashima

Proceedings of the Computational Linguistics and Intelligent Text Processing, 2019

2018

Encoder-Decoder Neural Networks for Taxonomy Classification.

Makoto Hiramatsu, Kei Wakabayashi

Proceedings of the SIGIR 2018 Workshop On eCommerce co-located with the 41st International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2018), 2018

Segmentation-based Unsupervised Phrase Detection.

Kei Wakabayashi

Proceedings of the 20th International Conference on Information Integration and Web-based Applications & Services, 2018

Extracting time series variation of topic popularity in microblogs.

Satoshi Fukuyama, Kei Wakabayashi

Proceedings of the 20th International Conference on Information Integration and Web-based Applications & Services, 2018

2017

Twitter user growth analysis based on diversities in posting activities.

Shuhei Yamamoto, Kei Wakabayashi, Tetsuji Satoh, Yuri Nozaki, Noriko Kando

Int. J. Web Inf. Syst., 2017

Scalable Algorithm for Probabilistic Overlapping Community Detection.

Kento Nozawa, Kei Wakabayashi

Proceedings of the 1st Workshop on Scholarly Web Mining, 2017

Automatic Extraction of Discussion based on Sentence Type Estimation.

Yuto Hoshikawa, Kei Wakabayashi

Proceedings of the 2017 ACM Conference on Computer Supported Cooperative Work and Social Computing, 2017

2016

Twitter user tagging method based on burst time series.

Shuhei Yamamoto, Kei Wakabayashi, Noriko Kando, Tetsuji Satoh

Int. J. Web Inf. Syst., 2016

Who are growth users?: analyzing and predicting intended Twitter user growth.

Shuhei Yamamoto, Kei Wakabayashi, Noriko Kando, Tetsuji Satoh

Proceedings of the 18th International Conference on Information Integration and Web-based Applications and Services, 2016

Nonparametric Bayesian Models for Spoken Language Understanding.

Kei Wakabayashi, Johane Takeuchi, Kotaro Funakoshi, Mikio Nakano

Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing, 2016

2015

BUTE: bursty users tagging method estimated by time series data.

Shuhei Yamamoto, Kei Wakabayashi, Noriko Kando, Tetsuji Satoh

Proceedings of the 17th International Conference on Information Integration and Web-based Applications & Services, 2015

2012

Forward-Backward Activation Algorithm for Hierarchical Hidden Markov Models.

Kei Wakabayashi, Takao Miura

Proceedings of the Advances in Neural Information Processing Systems 25: 26th Annual Conference on Neural Information Processing Systems 2012. Proceedings of a meeting held December 3-6, 2012

2010

Topology Estimation of Hierarchical Hidden Markov Models for Language Models.

Kei Wakabayashi, Takao Miura

Proceedings of the Natural Language Processing and Information Systems, 2010

2009

A lossless re-encoding scheme for MPEG-1 video.

Ichiro Matsuda, Kei Wakabayashi, Yu Ikeda, Susumu Itoh

Proceedings of the 17th European Signal Processing Conference, 2009

Data Stream Prediction Using Incremental Hidden Markov Models.

Kei Wakabayashi, Takao Miura

Proceedings of the Data Warehousing and Knowledge Discovery, 11th International Conference, 2009

2008

Topics Identification Based on Event Sequence Using Co-occurrence Words.

Kei Wakabayashi, Takao Miura

Proceedings of the Natural Language and Information Systems, 2008

Lossless re-encoding of JPEG images using block-adaptive intra prediction.

Ichiro Matsuda, Yukio Nomoto, Kei Wakabayashi, Susumu Itoh

Proceedings of the 2008 16th European Signal Processing Conference, 2008

2007

Identifying Event Sequences Using Hidden Markov Model.

Kei Wakabayashi, Takao Miura

Proceedings of the Natural Language Processing and Information Systems, 2007