Ryota HinamiContactInformation

Satoh Shin’ichi Laboratory
National Institute of Informatics
2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan
E-mail: hinami@nii.ac.jp

Affiliation

Graduate School of Information Science and Technology
The University of Tokyo

ResearchInterests

Computer Vision, and Multimedia processing. Especially for multimedia retieval, e.g.,
image indexing and object retireval.

Education

The University of Tokyo, Tokyo, Japan
Ph.D., Information and Communication Engineering, April 2016 • Adviser: Professor Shin’ichi Satoh• Area of Study: Multimedia and Computer Vision
M.S., Information and Communication Engineering, April 2014 - March 2016
• Thesis Topic: Large-scale object category detection and retrieval• Adviser: Professor Shin’ichi Satoh• Area of Study: Multimedia and Computer Vision
B.E., Information and Communication Engineering, April 2010 - March 2014
• Thesis Topic: Control of humanoid robot• Adviser: Professor Hitoshi Iba• Area of Study: Evolutionary Computation

Publications[1] Y. Fang, R. Hinami, Y. Matsui, S. Ly, S. Satoh. “Efficient image retrieval via
decoupling diffusion into online and offline processing” In Proc. AAAI Conferenceon Artificial Intelligence (AAAI), 2019.
[2] R. Hinami, S. Satoh. “Discriminative Learning of Open-Vocabulary Object Retrieval and Localization by Negative Phrase Augmentation” Empirical Methods
in Natural Language Processing (EMNLP) 2018.
[3] Y. Matsui, R. Hinami, S. Satoh. “Reconfigurable inverted index” ACM Multimedia(ACMMM) 2018. (Oral)[4] A. Girbau, R. Hinami, S. Satoh. “Tracked instance search” International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2018.
[5] R. Hinami, J. Liang, S. Satoh, A. Hauptmann. “Multimodal Co-Training for Selecting Good Examples from Webly Labeled Video” arXiv 2017.
[6] R. Hinami, Y. Matsui, S. Satoh. “Region-based image retrieval revisited” ACM
Multimedia (ACMMM) 2017. (Oral)[7] R. Hinami, T. Mei, S. Satoh. “Joint detection and recounting of abnormal events bylearning deep generic knowledge” IEEE International Conference on Computer
Vision (ICCV) 2017.
[8] R. Hinami, S. Satoh. “Audience behavior mining: integrating TV ratings withmultimedia contents” IEEE Multimedia 2017.

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[9] R. Hinami, S. Satoh. “Audience behavior mining by integrating TV ratings withmultimedia contents” IEEE International Symposium on Multimedia (ISM) 2016.
(Honorable Mention)[10] R. Hinami, S. Satoh. “Large-scale R-CNN with classifier adaptive quantization”
European Conference on Computer Vision (ECCV) 2016.
[11] R. Hinami, L. Xinhao, N. Chiba, S. Satoh. “Bidirectional extraction and recognition of scene text with layout consistency” International Journal on Document
Analysis and Recognition (IJDAR) 2016.
[12] R. Hinami, L. Xinhao, N. Chiba, S. Satoh. “Simultaneous processing of text line
estimation and scene text recognition” The Meeting on Image Recognition andUnderstanding (MIRU) 2015. (Oral)
Professional
Experience

Carnegie Mellon University, Pittsburgh, USA
Visiting Student

January 2018 to March 2018

• Supervisor: Prof. Alex Hauptmann• Research topic: Webly-supervised video retrieval
NTT Communication Science Laboratories, Kanagawa, Japan
Visiting Student

January 2017 to March 2017

• Supervisor: Dr. Masaya Murata• Research topic: Instance search
Microsoft Research Asia, Beijing, China
Research InternshipJuly 2016 to October 2016

• Supervisor: Dr. Tao Mei• Research topic: Abnormal event detection in videos
Rakuten Institute of Technology, Tokyo, Japan
Research Internship

June 2014 to June 2015

• Supervisor: Dr. Naoki Chiba• Research topic: Text recognition in natural scene images
Donuts Co. Ltd., Tokyo, Japan
Software Engineer Internship

March 2013 to March 2014

• Development of smartphone games and web services
SkillsKaggle Master (2 gold medals and 1 silver medal):• 7th of 209 in Google landmark retrieval challenge• 7th of 483 in Google landmark recognition challenge• 17th of 394 in The 2nd YouTube-8M Video Understanding Challenge
Computer Programming:• Python, MATLAB, C++, Japascript• PyTorch, Chainer, Caffe, Keras
Language:• English: TOEIC 920/990 in March 2015

2 of 3Awards• Dean’s Award for Best Master Thesis, Graduate School of Information Science andTechnology, 2016
• Hornable Mention, International Symposium on Multimedia, 2016
• Best Student Award, National Institute of Informatics, 2017
• 1st place, UTokyo1000k, 2018
• Innovative technologies 2018, Digital Content Association of Japan, 2018
• Demo Day Award, Todai To Texas 2019 Demo Day, 2018

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