Takeshi KURASHIMA
I am a Researcher at NTT Human Informatics Laboratories, NTT Corporation. My research focuses on mining and modeling human activities. I was a Visiting Scholar at Computer Science, Stanford University. I worked with Jure Leskovec and was part of SNAP, the InfoLab.
What's new
June 2023: Our paper "Personal History Affects Reference Points: A Case Study of Codeforces" won the Best Paper Award (Outstanding User Modeling) at ICWSM 2023!
May 2023: Our paper "Inverse Problem of Censored Markov Chain: Estimating Markov Chain Parameters from Censored Transition Data" has been accepted at PAKDD 2023.
July 2022: Our paper "Personal History Affects Reference Points: A Case Study of Codeforces" has been accepted at ICWSM 2023.
January 2023: Our paper "MAP Inference Algorithms without Approximation for Collective Graphical Models on Path Graphs via Discrete Difference of Convex Algorithm" has been accepted at Machine Learning.
January 2021: My interview was published in NTT R&D Website.
Conference Papers
Masahiro Kohjime, Takeshi Kurashima, and Hiroyuki TodaThe 27th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2023), pp.297-308, May 2023 [acceptance rate: 143 / 869 = 16.5%]Yasunori Akagi, Naoki Marumo, Hideaki Kim, Takeshi Kurashima, and Hiroyuki TodaThe 35th Annual Conference on Neural Information Processing Systems (NeurIPS 2021) [acceptance rate: 2344 / 9122 = 25.7%]Yuya Hikima, Masahiro Kohjima, Yasunori Akagi, Takeshi Kurashima, and Hiroyuki TodaThe 18th Pacific Rim International Conference on Artificial Intelligence (PRICAI 2021) , pp.370-381, [acceptance rate: ( 98 regular + 30 short ) / 408 = 31.4 %]Masami Takahashi, Masahiro Kohjima, Ryo Hashimoto, Asuka Miyake, Takeshi Kurashima, and Hiroyuki TodaACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2021), pp.74-75 [poster]Maya Okawa, Tomoharu Iwata, Yusuke Tanaka, Hiroyuki Toda, Takeshi Kurashima, and Hisashi KashimaACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2021) , pp.1276-1286, August 2021 [acceptance rate: 238 / 1541 = 15.4%]Tomu Tominaga, Shuhei Yamamoto, Takeshi Kurashima, and Hiroyuki TodaThe 18th IFIP TC13 International Conference on Human Computer Interaction (INTERACT 2021) , pp.3-22, August 2021 [acceptance rate: 29%]Yuya Hikima, Yasunori Akagi, Hideaki Kim, Masahiro Kohjima, Takeshi Kurashima, and Hiroyuki TodaThe 35th AAAI Conference on Artificial Intelligence (AAAI 2021), pp.3796-3805, February 2021 [acceptance rate: 1692 / 7911 = 21.4%]Masami Takahashi, Masahiro Kohjima, Takeshi Kurashima, and Hiroyuki TodaInternational Conference on Pattern Recognition (ICPR 2020), pp.4865-4872, January 2021Masahiro Kohjima, Takeshi Kurashima, and Hiroyuki TodaThe 29th International Joint Conference on Artificial Intelligence and the 17th Pacific Rim International Conference on Artificial Intelligence (IJCAI-PRICAI 2020) , pp.2412-2419, July 2020 [acceptance rate: 592 / 4717 = 12.6%]Shuhei Yamamoto, Takeshi Kurashima, and Hiroyuki TodaThe 24th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2020), pp.717-728, May 2020 [acceptance rate: * / 628 = 21%]Yasunori Akagi, Takuya Nishimura, Yusuke Tanaka, Takeshi Kurashima, and Hiroyuki TodaThe 34th AAAI Conference on Artificial Intelligence (AAAI 2020), pp.3163-3170, February 2020 [acceptance rate: 1591 / 7737 = 20.6%]Yusuke Tanaka, Toshiyuki Tanaka, Tomoharu Iwata, Takeshi Kurashima, Maya Okawa, Yasunori Akagi, and Hiroyuki TodaThe 33rd Annual Conference on Neural Information Processing Systems (NeurIPS 2019), pp.3000–3010, December 2019 [acceptance rate: 1428 / 6743 = 21.2%]Hidetaka Ito, Kyota Tsutsumida, Tatsushi Matsubayashi, Takeshi Kurashima, and Hiroyuki TodaThe 2019 Winter Simulation Conference (WSC 2019), December 2019Yoshiaki Takimoto, Yusuke Tanaka, Takeshi Kurashima, Shuhei Yamamoto, Maya Okawa, and Hiroyuki TodaThe 3rd ACM SIGSPATIAL International Workshop on Prediction of Human Mobility (PredictGIS), pp.11-14, November 2019Masami Takahashi, Masahiro Kohjima, Takeshi Kurashima, Tatsushi Matsubayashi, and Hiroyuki TodaACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2019), pp.218-221, September 2019 [poster]Maya Okawa, Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, and Naonori UedaACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2019), pp.373-383, August 2019 [acceptance rate: 174 / 1179 = 14.8%]Yusuke Tanaka, Tomoharu Iwata, Toshiyuki Tanaka, Takeshi Kurashima, Maya Okawa, and Hiroyuki TodaThe 33rd AAAI Conference on Artificial Intelligence (AAAI 2019), pp.5091-5099, January 2019 [acceptance rate: 1150 / 7095 = 16.2%]Yasunori Akagi, Takuya Nishimura, Takeshi Kurashima, and Hiroyuki TodaInternational Joint Conference on Artificial Intelligence and European Conference on Artificial Intelligence (IJCAI-ECAI 2018), pp.3293-3300, July 2018Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda, and Naonori UedaInternational Joint Conference on Artificial Intelligence and European Conference on Artificial Intelligence (IJCAI-ECAI 2018), pp.3556-3563, July 2018 [acceptance rate: 710 / 3470 = 20.5%]Takeshi Kurashima, Tim Althoff, and Jure LeskovecThe Web Conference (WWW 2018), pp.803-812, April 2018 [acceptance rate: 171 / 1155 = 14.8%]Yusuke Tanaka, Takeshi Kurashima, Yasuhiro Fujiwara, Tomoharu Iwata, and Hiroshi SawadaACM International Conference on Web Search and Data Mining (WSDM 2016), pp.543-552, February 2016 [acceptance rate: 18.2%]Kyosuke Nishida, Hiroyuki Toda, Takeshi Kurashima, and Yoshihiko SuharaACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2014), pp.631–642, September 2014 [acceptance rate: 20.7%]Takeshi Kurashima, Tomoharu Iwata, Noriko Takaya, and Hiroshi SawadaACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2014), pp.1236–1245, August 2014 [acceptance rate: 151 / 1036 = 14.6%]Takeshi Kurashima, Tomoharu Iwata, Noriko Takaya, and Hiroshi SawadaIEEE International Conference on Data Mining (ICDM 2013), pp.1097–1102, December 2013 [acceptance rate: 19.7%]Takeshi Kurashima, Tomoharu Iwata, Takahide Hoshide, Noriko Takaya, and Ko FujimuraACM International Conference on Web Search and Data Mining (WSDM 2013), pp.375–384, February 2013 [acceptance rate: 73 / 387 = 18.9%]Takeshi Kurashima, Tomoharu Iwata, Go Irie, and Ko FujimuraACM International Conference on Information and Knowledge Management (CIKM 2010), pp.579–588, October 2010 [acceptance rate: 127 / 945 = 13.4%]Takeshi Kurashima, Ko Fujimura, and Hidenori OkudaEuropean Conference on Information Retrieval (ECIR 2009), pp.546–553, April 2009Takeshi Kurashima, Katsuji Bessho, Hiroyuki Toda, Toshio Uchiyama, and Ryoji KataokaInternational Conference on Database and Expert Systems Applications (DEXA 2008), pp.124–133, September 2008Takeshi Kurashima, Taro Tezuka, and Katsumi TanakaInternational Conference on Database and Expert Systems Applications (DEXA 2006), pp.213–222, September 2006 [acceptance rate: 90 / 388 = 23.2%]Taro Tezuka, Takeshi Kurashima, and Katsumi TanakaInternational Conference on World Wide Web (WWW 2006), pp.277–286, May 2006 [acceptance rate: 84 / 697 = 12.1%]Takeshi Kurashima, Taro Tezuka, and Katsumi TanakaInternational Conference on Web Information Systems Engineering (WISE 2005), pp.496–503, November 2005 [acceptance rate: (30 regular + 24 short ) / 259 = 20.8%]Journals
Takeshi Kurashima, Tomoharu Iwata, Tomu Tominaga, Shuhei Yamamoto, Hiroyuki Toda, and Kazuhisa TakemuraThe 17th International Conference on Web and Social Media (ICWSM 2023) , Vol.17, No.8, pp.507-518, [acceptance rate: 84 / 444 =18.9%]👑 Best Paper Award (Outstanding User Modeling Paper)Tomu Tominaga, Shuhei Yamamoto, Takeshi Kurashima, and Hiroyuki TodaIPSJ Journal, Vol.64, No.2, pp.336-351, Feburary 2023 (in Japanese)Yuya Hikima, Yasunori Akagi, Masahiro Kohjima, Takeshi Kurashima, and Hiroyuki TodaTransactions of the Japanese Society for Artificial Intelligence, Vol.38, No.1, pp.C-M13_1, January 2023. Yasunori Akagi, Naoki Marumo, Hideaki Kim, Takeshi Kurashima, and Hiroyuki TodaMachine Learning, Vol. 112, No. 1, pp.99-129, January 2023.Maya Okawa, Tomoharu Iwata, Yusuke Tanaka, Takeshi Kurashima, Hiroyuki Toda, and Hisashi KashimaMachine Learning, Vol. 111, No.8, pp.2929-2950, March 2022.Shuhei Yamamoto, Takeshi Kurashima, and Hiroyuki TodaIEICE Transactions on Information and Systems, Vol. E105-D, No.2, pp.377-386, Feb. 2022.Maya Okawa, Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, Naonori Ueda, and Hisashi KashimaJournal of Japanese Society for Artificial Intelligence, Vol.36, No.5, p.C-L37_1-10, September 2021 (in Japanese)Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda, Naonori Ueda, and Toshiyuki TanakaArtificial Intelligence, Vol. 292, March 2021, 103430Yoshiaki Takimoto, Yusuke Tanaka, Takeshi Kurashima, Shuhei Yamamoto, Maya Okawa, and Hiroyuki TodaIPSJ Transactions on Databases (TOD), Vol.14, No.1, pp.1-7, January 2021 (in Japanese)Masahiro Kohjima, Masami Takahashi, Takeshi Kurashima, Tatsushi Matsubayashi, and Hiroyuki TodaIEICE Transactions on Information and Systems, Vol. 103, No.10, pp.664-675, October 2020 (in Japanese)Yoshiaki Takimoto, Shuhei Yamamoto, Tatsushi Matsubayashi, Takeshi Kurashima, Hiroyuki TodaIPSJ Transactions on Databases (TOD), Vol.13, No.3, pp.1-9, July 2020 (in Japanese)Maya Okawa, Yusuke Tanaka, Takeshi Kurashima, Hiroyuki Toda, and Tomohiro YamadaIEICE Transactions on Information and Systems, Vol. E102.D (9), pp.1635-1643, June 2019.Yasunori Akagi, Takuya Nishimura, Takeshi Kurashima, and Hiroyuki TodaDBSJ Journal, Vol.17-j, No.9, March 2019 (in Japanese)Yusuke Tanaka, Takeshi Kurashima, Yasuhiro Fujiwara, Tomoharu Iwata, and Hiroshi SawadaIPSJ Journal, Vol.58, No.2, pp.580-593, Feburary 2017 (in Japanese)
User Status Estimation Using E-Commerce Site’s Access Logs
Estimating Method on Choosing the Item in E-Commerce
Program Committee Member
NeurIPS 2020-2023 - The Annual Conference on Neural Information Processing Systems, 2020, 2021, 2022, 2023 (Reviewer)
ICML 2021-2023 - The International Conference on Machine Learning, 2021, 2022, 2023
ECML-PKDD 2020 - European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, 2020
AAAI 2020-2023 - AAAI Conference on Artificial Intelligence 2020, 2021, 2022, 2023
IJCAI 2018-2020 - International Joint Conference on Artificial Intelligence 2018, 2019, 2020
Biography
Jul. 2021 - Present: Researcher at NTT Human Informatics Laboratories, NTT Corporation
Jul. 2012 - Jun. 2021: Researcher at NTT Service Evolution Laboratories, NTT Corporation
Apr. 2016 - Apr.2017: Visiting Scholar at Computer Science, Stanford University ( Sponsor: Jure Leskovec )
Oct. 2011 - Sep. 2014: Ph.D. in Informatics, Kyoto University, Japan ( Supervisor: Katsumi Tanaka )
Apr. 2006 - Jun. 2012: Researcher at NTT Cyber Solutions Laboratories, NTT Corporation
Apr. 2004 - Mar. 2006: Master of Informatics, Kyoto University, Japan
Apr. 2000 - Mar. 2004: Bachelor of Engineering, Doshisha University, Japan
Contact
E-mail: [my first name] . [my last name] [at] ntt.com
Address: 1-1 Hikarinooka, Yokosuka, Kanagawa, 239-0847, Japan
Last updated: November 2023