Shotaro Sano

Most-cited papers

1. Optuna: A Next-generation Hyperparameter Optimization Framework

   Takuya Akiba, Shotaro Sano, Toshihiko Yanase, Takeru Ohta +1 more

   2019Knowledge Discovery and Data Mining12K citations

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2. Sampling Techniques for Large-Scale Object Detection From Sparsely Annotated Objects

   Yusuke Niitani, Takuya Akiba, Tommi Kerola, Toru Ogawa +2 more

   2018Computer Vision and Pattern Recognition50 citations Open access

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3. Solving Google's Continuous Audio CAPTCHA with HMM-Based Automatic Speech Recognition

   Shotaro Sano, Takuma Otsuka, Hiroshi G. Okuno

   2013International Workshop on Security34 citations

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4. PFDet: 2nd Place Solution to Open Images Challenge 2018 Object Detection Track

   Takuya Akiba, Tommi Kerola, Yusuke Niitani, Toru Ogawa +2 more

   2018arXiv.org21 citations

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5. HMM-based Attacks on Google's ReCAPTCHA with Continuous Visual and Audio Symbols

   Shotaro Sano, Takuma Otsuka, Katsutoshi Itoyama, Hiroshi G. Okuno

   2015Journal of Information Processing20 citations Open access

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6. Interactive Hyperparameter Optimization with Paintable Timelines

   Keita Higuchi, Shotaro Sano, T. Igarashi

   2021Conference on Designing Interactive Systems8 citations

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7. Proceedings of the Fifteenth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-15)

   Laura Dietz, A. Panchenko, Fragkiskos D. Malliaros, V. Logacheva +496 more

   20216 citations Open access

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8. Proceedings of the 1st Workshop on Natural Language Processing for Programming (NLP4Prog 2021)

   R. Lachmy, Ziyu Yao, Greg Durrett, Milos Gligoric +496 more

   20214 citations Open access

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9. Team PFDet's Methods for Open Images Challenge 2019

   Yusuke Niitani, Toru Ogawa, Shuji Suzuki, Takuya Akiba +3 more

   2019arXiv.org3 citations

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10. Proceedings of the 17th International Conference on Parsing Technologies and the IWPT 2021 Shared Task on Parsing into Enhanced Universal Dependencies (IWPT 2021)

    Christoph Bloomberg, Antoine Venant, Aditya Bhargava, Gerald Penn +496 more

    20212 citations Open access

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11. Team Optuna Developers’ Method for Black-Box Optimization Challenge 2020

    Masashi Shibata, Toshihiko Yanase, Hideaki Imamura, Masahiro Nomura +2 more

    20202 citations

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12. Efficient Ensemble Transformer for Accurate Answer Sentence Ranking

    Takuya Akiba, Shotaro Sano, Toshihiko Yanase, Wei-Jie Bian +37 more

    20221 citations

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13. HMM-based CAPTCHA Breaker for Overlapped Symbols

    Shotaro Sano, Takuma Otsuka, Hiroshi G. Okuno

    20141 citations

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14. Predicting listener back-channels for human-agent interaction using neuro-dynamical model

    Shotaro Sano, Shun Nishide, Hiroshi G. Okuno, T. Ogata

    2011IEEE/SICE International Symposium on System Integration1 citations

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15. PLaMo 2 Technical Report

    Kaizaburo Chubachi, Yasuhiro Fujita, Shinichi Hemmi, Yuta Hirokawa +21 more

    2025arXiv.org0 citations

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16. PLaMo-100B: A Ground-Up Language Model Designed for Japanese Proficiency

    Kenshi Abe, Kaizaburo Chubachi, Yasuhiro Fujita, Yuta Hirokawa +15 more

    2024arXiv.org0 citations

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