Tsukasa Demizu, Yusuke Fukazawa, Hiroshi Morita: Inventory management of new products in retailers using model-based deep reinforcement learning. Expert Syst. Appl. 229(Part A): 120256, 2023.

H. Uehara, Y. Iuchi, Y. Fukazawa, Y. Kaneta: Predicting A Growing Stage of Rice Plants Based on The Cropping Records over 25 Years — A Trial of Feature Engineering Incorporating Hidden Regional Characteristics —, IEICE TRANS. INF. & SYST., VOL.E105–D, NO.5, 2022

K. Futagami, Y. Fukazawa, N. Kapoor, T. Kito: Pairwise acquisition prediction with SHAP value interpretation, 7, 22-44, Journal of Finance and Data Science, 2021.

Y. Fukazawa, N. Yamamoto, T. Hamatani, K. Ochiai, A. Uchiyama, K. Ohta: Smartphone-based Mental State Estimation: A Survey from a Machine Learning Perspective, Journal of Information Processing, Volume 28 ,16-30, 2020.

Y. Fukazawa, T. Ito, T. Okimura, Y. Yamashita, T. Maeda, J. Ota: Predicting anxiety state using smartphone-based passive sensing, Journal of Biomedical Informatics, Elsevier, 93, 2019.

T. Ito, Y. Fukazawa, Dandan Zhu, J. Ota. Modeling weather context dependent food choice process, Journal of Information Processing, 26, 386-395. 2018

Y. Fukazawa, Mark Kröll, Markus Strohmaier, J. Ota: IR based Task-Model Learning: Automating the hierarchical structuring of tasks, Web Intelligence 14(1): 31-41, 2016.

Y. Fukazawa,Eleftherios Karapetsas, Dandan Zhu, J. Ota: Exploratory activity search, KES Journal 19(1): 15-25, 2015.

A. Kato, Y. Fukazawa, Hiromi Sanada, Taketoshi Mori: Extraction of Food-Related Onomatopoeia from Food Reviews and Its Application to Restaurant Search, Journal of Advanced Computational Intelligence and Intelligent Informatics, Vol. 18, No. 3, 418-428, 2014.

Dandan Zhu, Y. Fukazawa, Eleftheerios Karapetsasa and J. Ota: Activity-Based Topic Discovery, Web Intelligence and Agent Systems, vol. 12, no. 2, pp. 193-209, 2014.

Y. Fukazawa, J. Ota: Location based Video Navigation Using Task Extracted from the Web, International Journal of Knowledge-Based Intelligent Engineering Systems, Vol.18, No. 1, pp.43-54, 2014.

Y. Fukazawa, J. Ota: Automatic Task-based Profile Representation for Content-based Recommendation, International Journal of Knowledge-Based Intelligent Engineering Systems, Vol. 16, No. 4, pp.247-260, 2012.

Y. Fukazawa, J. Ota: User-centered Profile Representation for Recommendations across Multiple Content Domains, International Journal of Knowledge-Based Intelligent Engineering Systems, Vol. 15, No. 1, pp.1-14, 2011.

Y. Fukazawa, M. Hara and H. Ueno: Automatic Cell Phone Menu Customization Based on User Operation History, Transactions of the Japanese Society for Artificial Intelligence, Vol. 25, No. 1, pp.68-77, 2010.

M. Luther, Y. Fukazawa, M. Wagner, S. Kurakake: Situational reasoning for task-oriented mobile service recommendation, Knowledge Eng. Review, Vol. 23, No.1, pp.7-19, 2008.

Y. Fukazawa, C. Trevai, J. Ota and T. Arai: “Acquisition of Intermediate Goals for an Agent Executing Multiple Tasks,” IEEE Transactions on Robotics, Vol.22, No.5, pp.1034-1040, 2006.

Y. Fukazawa, C. Trevai, J. Ota, H.Yuasa, T. Arai, H. Asama and K. Kawabata: Realizing Exploration and Rearrangement Task of Multiple Unknown Objects by an Actual Mobile Robot, Advanced Robotics, Vol.19, No.1, pp.1-20, 2005.

C. Trevai, Y. Fukazawa, Hideo Yuasa, J. Ota, Tamio Arai and Hajime Asama: Exploration path generation for multiple mobile robots using reaction-diffusion equation on a graph, Integrated Computer-Aided Engineering,” Vol.11, No.3, pp.195-212, 2004.

Masahiro Suzuki, Megumi Kodaka, and Yusuke Fukazawa: Synthetic Mobility Feature Generation for Mental Health Prediction using Diffusion Models,The 23rd IEEE/WIC International Conference on Web Intelligence and Intelligent Agent Technology, 2024. 

Rika Tanaka and Yusuke Fukazawa: Integrating Supervised Extractive and Generative Language Models for Suicide Risk Evidence Summarization, Proceedings of the Ninth Workshop on Computational Linguistics and Clinical Psychology, Association for Computational Linguistics, 2024.

Masahiro Suzuki, Shomu Furuta, Yusuke Fukazawa: Personalized human mobility prediction for HuMob challenge, ACM SIG SPATIAL, HuMob Challenge Workshop, 2023.

Shigeki Tanaka, Ryoki Wakamoto, Yusuke Fukazawa: Real-time Karaoke Recommendations : Session-based Multi-Task Recommendations with Multivariate RNNs, 1402-1409, IEEE BigData, 2020.

Keiichi Ochiai, Yusuke Fukazawa, Wataru Yamada, Hiroyuki Manabe, Yutaka Matsuo:Gravity of Location-Based Service: Analyzing the Effects for Mobility Pattern and Location Prediction, 476-487, ICWSM 2020.

Taku Ito, Issei Nakamura, Shigeki Tanaka, Toshiki Sakai, Takeshi Kato, Yusuke Fukazawa, Takeshi Yoshimura: Deep Neural Network Incorporating CNN and MF for Item-Based Fashion Recommendation, 46-57, PKAW, 2020.

Taku Ito, Keiichi Ochiai, Yusuke Fukazawa: C-LIME: A Consistency-Oriented LIME for Time-Series Health-Risk Predictions, 58-69, PKAW, 2020.

Yasuhiro Iuchi, Hiroshi Uehara, Yusuke Fukazawa, Yoshihiro Kaneta: Stabilizing the Predictive Performance for Ear Emergence in Rice Crops Across Cropping Regions, 83-97, PKAW 2020.

T. Mimura, S. Ishiguro, S. Kawasaki, Y. Fukazawa: Bike-Share Demand Prediction using Attention based Sequence to Sequence and Conditional Variational AutoEncoder, PredictGIS workshop SIGSPATIAL, 41-44 (2019)

K. Ochiai, N. Yamamoto, T. Hamatani, Y. Fukazawa, T. Yamaguchi: Exploiting Graph Convolutional Networks for Representation Learning of Mobile App Usage, BigData, 5379-5383 (2019)

T. Hamatani, K. Ochiai, N. Yamamoto, A. Inagaki, Y. Fukazawa, M. Kimoto, K. Kiriu, K. Kaminishi, J. Ota, Y. Terasawa, T. Okimura and T. Maeda: Automated Inference of Cognitive Performance by Fusing Multimodal Information Acquired by Smartphone, Proceedings of mental health : sensing & intervention workshop on UbiComp, 2019

K. Ochiai, Kohei Senkawa, N. Yamamoto, Y. Tanaka and Y. Fukazawa: Real-time On-Device Troubleshooting Recommendation for Smartphones, ACM KDD 2019 Applied Data Science Track, Oral, 2019.

K. Ochiai, Y. Fukazawa, W. Yamada, H. Manabe, Y. Matsuo: Analyzing the Effects of Location-based Service for Mobility Pattern and Location Prediction, The 13th International AAAI Conference on Weblogs and Social Media (ICWSM 2019), June 2019, Poster.

K. Ochiai, F. Putri,Y. Fukazawa: Local App Classification using Deep Neural Network based on Mobile App Market Data, Proceedings of IEEE International Conference on Pervasive Computing and Communications (PerCom) 2019 Industry Track

K. Ochiai, N. Yamamoto, T. Hamatani, Y. Fukazawa, M. Kimoto, K. Kiriu, K. Kaminishi, J. Ota, Y. Terasawa, T. Okimura and T. Maeda: Analyzing the Relationship between Cognitive Performance and Time to Find Intended Mobile App, Proceedings of MENTAL HEALTH : SENSING & INTERVENTION workshop on the 2018 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2018), 2018.

N. Yamamoto, K. Ochiai, A. Inagaki, Y. Fukazawa, M. Kimoto, K. Kiriu, K. Kaminishi, J. Ota, T. Okimura, Y. Terasawa and T. Maeda: Physiological Stress Level Estimation Based on Smartphone Logs, Proceedings of The 11th International Conference on Mobile Computing and Ubiquitous Networking (ICMU 2018), 2018.

K. Ochiai, Shu Takahashi and Y. Fukazawa: Arrhythmia Detection from 2-lead ECG using Convolutional Denoising Autoencoders, ACM KDD 2018 Deep Learning Day, London, August, 2018

K. Ochiai, Y. Fukazawa, Wataru Yamada, Hiroyuki Manabe and Yutaka Matsuo: Pokemon Go Influences Where You Go: Analyzing the Effects of Location-based Services for Location Prediction, Asian CHI Symposium: Emerging HCI Research Collection in ACM Conference on Human Factors in Computing Systems (CHI) 2018.

S. Ishiguro, S. Kawasaki and Y. Fukazawa: Taxi Demand Forecast Using Real-Time Population Generated from Cellular Networks. UbiComp/ISWC Adjunct 2018: 1024-1032

K. Ochiai, N. Yamamoto, T. Hamatani, Y. Fukazawa, M. Kimoto, K. Kiriu, K. Kaminishi, J. Ota, Y. Terasawa, T. Okimura and T. Maeda: Analyzing the relationship between cognitive performance and time to find intended mobile app. Proceedings of MENTAL HEALTH : SENSING & INTERVENTION workshop on the 2018 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2018), October 12, 2018, Singapore, (pp.1-5), 2018.

N. Yamamoto, K. Ochiai,A. Inagaki, Y. Fukazawa, M. Kimoto, K. Kiriu, K. Kaminishi, J. Ota, T. Okimura,Y. Terasawa and T. Maeda: Physiological stress level estimation based on smartphone logs, Proceedings of the 2018 Eleventh International Conference on Mobile Computing and Ubiquitous Networking (ICMU), October 5-8, 2018.

K. Kiriu, K. Ochiai, A. Inagaki, N. Yamamoto, Y. Fukazawa, M. Kimoto,T. Okimura, Yuri　Terasawa, Takaki　Maeda and Jun　Ota: Recognizing whether a person is eating alone or has company by using wearable devices, Proceedings of the 2017 Tenth International Conference on Mobile Computing and Ubiquitous Networking (ICMU), October 3-5, 2017.

Wataru Yamada, Haruka Kikuchi, K. Ochiai, Shu Takahashi, Y. Fukazawa, Hiroshi Inamura and Ken Ohta: Multi-label categorizing local event information from micro-blogs. ICMU 2016: 1-6, 2016.

T. Ito, Y. Fukazawa, T. Maeda, Y. Yamashita, T. Okimura and J. Ota: Evaluating number of days needed to predict anxiety by using smartphone, Proceedings of the 2016 Ninth International Conference on Mobile Computing and Ubiquitous Networking (ICMU), 2016(11), pp.1-2, 2016.

T. Ito, Y. Fukazawa, Dandan Zhu and J. Ota: Topic models considering the meteorological context and users’ preference, Proceedings of the 2016 Ninth International Conference on Mobile Computing and Ubiquitous Networking (ICMU), 2016(3), pp.1-2, 2016.

T. Ito, Y. Fukazawa, T. Okimura, Y. Yamashita, T. Maeda and J. Ota: Nonpathological anxiety prediction using both sensor logs and application history of smartphones, Proceedings of the 1st International Symposium on Embodied-Brain Systems Science (EmboSS 2016), (pp.29), 2016.

T. Ito, Dandan Zhu, Y. Fukazawa and J. Ota: Climate condition that mostly affects the change of tweet content, Proceedings of the 2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU), (pp. 72-73), 2015.

Takuya Shinmura, Y. Fukazawa, Dandan Zhu, and J. Ota: “ Destination prediction considering both tweet contents and location transition history ,” Proceedings of the 2014 Seventh International Conference on Mobile Computing and Ubiquitous Networking (ICMU), pp.95-96, 2014.

Takuya Shinmura, Y. Fukazawa, Dandan Zhu, and J. Ota: “ Destination prediction considering both tweet contents and location transition history ,” Proceedings of the 2014 Seventh International Conference on Mobile Computing and Ubiquitous Networking (ICMU), pp.95-96, 2014.

Y. Fukazawa, and J. Ota: “Compaion context dependent topic modeling,” Proceedings of the 2014 Seventh International Conference on Mobile Computing and Ubiquitous Networking (ICMU),pp.105-110, 2014.

Dandan Zhu, Y. Fukazawa, and J. Ota: “ Estimation of user’s activity from tweets through tri-layer clustering model,” Proceedings of the 2014 Seventh International Conference on Mobile Computing and Ubiquitous Networking (ICMU),pp.159-164, 2014.

Dandan Zhu, Y. Fukazawa, Eleftherios Karapetsas and J. Ota, “ Tri-layer-cluster Generation Model for Activity Prediction ,” Proc. 2013 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology, pp.359-366, 2013.

Ayumi Kato, Masahiko Watanabe, Y. Fukazawa, Tomomasa Sato, Taketoshi Mori, “World eco-tope,” Art Gallery, 5th ACM SIGGRAPH Conference and Exhibition on Computer Graphics and Interactive Techniques in Asia (SIGGRAPH ASIA 2012), 2012.

Ayumi Kato, Y. Fukazawa, Tomomasa Sato, Taketoshi Mori, “Discovering Pattern of Onomatopoeia Used in Food Reviews,” 2012 Joint 6th International Conference on Soft Computing and Intelligent Systems (SCIS) and 13th International Symposium on Advanced Intelligent Systems (ISIS), 2012.

Dandan Zhu, Y. Fukazawa, Eleftherios Karapetsas and J. Ota, “ Long-Term Goal Discovery in the Twitter Posts through the Word-Pair LDA Model ,” International Conference on Natural Language Processing (JapTAL 2012), 2012.

Dandan Zhu, Y. Fukazawa, Eleftherios Karapetsas and J. Ota, “ Intuitive Topic Discovery by Incorporating Word-Pair’s Connection into LDA,” IEEE/WIC/ACM International Conference on Web Intelligence, pp.303-310, 2012.

Ayumi Kato, Y. Fukazawa, Tomomasa Sato and Taketoshi Mori:“world eco-tope,” ACM SIGGRAPH 2012,Poster sessions, 2012.

Ayumi Kato, Y. Fukazawa, Tomomasa Sato and Taketoshi Mori: “Extraction of Onomatopoeia Used for Foods from Food Reviews and Its Application to Restaurant Search,” In XperienceWeb2012, in conjunction with WWW2012, 2012.

Eleftherios Karapetsas, Y. Fukazawa and Ota Jun: “ Genetically Optimizing Query Expansion for Retrieving Activities from the Web,” International Conference on Web Intelligence, Mining and Semantics (WIMS 2012), 2012.

Mark Kröll, Y. Fukazawa, J. Ota, Markus Strohmaier: “Automatically Constructing Concept Hierarchies of Health-Related Human Goals,” 5th International Conference on Knowledge Science, Engineering and Management (KSEM 2011), pp.124-135, 2011.

Y. Fukazawa and J. Ota: “Automatic Modeling of User’s Real World Activities from the Web for Semantic IR,” Proceedings of the 3rd International Semantic Search Workshop, in conjunction with World Wide Web conference, 2010.

Y. Fukazawa, M. Hara, M. Onogi, H. Ueno: “Automatic mobile menu customization based on user operation history,” Mobile HCI 2009.

Y. Fukazawa, T. Naganuma, M. Onogi and S. Kurakake: “Task-ontology Based Preference Estimation for Mobile Recommendation,” IRMLeS 2009: 1st ESWC Workshop on Inductive Reasoning and Machine Learning on the Semantic Web, 2009.

C. Trevai, R. Takemoto, Y. Fukazawa, J. Ota and T. Arai: “Local Obstacle Avoidance with Reliable Goal Acquisition for Mobile Robots,” Distributed Autonomous Robotic Systems 6, Springer, pp.45-54, 2007.

Y. Fukazawa, T.Naganuma, K.Fujii and S.Kurakake: “Construction and Use of Role-ontology for Task-based Service Navigation System,” ISWC2006 5th International Semantic Web Conference, pp.806-819, 2006.

Y. Fukazawa, T.Naganuma, K.Fujii and S.Kurakake: “Role-task Model For Advanced Task-based Service Navigation System,” 10th International Conference on Knowledge-Based and Intelligent Information Engineering Systems, pp.1021-1028, 2006.

Y. Fukazawa, M. Luther, M. Wagnere, A. Tomioka, T. Naganuma, K. Fujii, S. Kurakake: “Situation-aware Task-based Service Recommendation,” The 4th International Conference on Mobile Systems, Applications and Services (MobiSys demo), 2006.

Y. Fukazawa, T. Naganuma, K. Fujii and S. Kurakake: “Service Navigation System Enhanced by Place- and Task-based Categorization,” The 4th International Conference on Mobile Systems, Applications and Services (MobiSys poster), 2006.

T. Naganuma, M. Luther, M. Wagner, K. Fujii, Y. Fukazawa, S. Kurakake: “Task-oriented Mobile Service Recommendation enhanced by a Situational Reasoning Engine,” 1st Asian Semantic Web Conference (ASWC2006), pp.768-774, 2006.

M. Luther, Y. Fukazawa, B. Souville, K. Fujii, T. Naganuma, M. Wagner, S. Kurakake: “Classification-based Situational Reasoning for Task-oriented Mobile Service Recommendation,” Proceedings of the 1st AAAI Workshop on Contexts and Ontologies: Theory, Practice and Applications, 2006.

Y. Fukazawa, T.Naganuma, K.Fujii and S.Kurakake: “A Framework for Task Retrieval in Task-Oriented Service Navigation System,” International Workshop on Web Semantics, R. Meersman et al. (Eds.): OTM Workshops 2005, LNCS 3762, pp.876-885, 2005.

Y. Fukazawa, C. Trevai , J. Ota and T. Arai: “Acquisition of Intermediate Goals for Problem Solver Executing Multiple Tasks,” Intelligent Autonomous Systems 8, Eds. Groen,F., Amato,N., Bonarini,A., Yoshida,E. and Krose,B., IOS, pp.353-360, 2004.

C. Trevai, R. Takemoto, Y. Fukazawa, J. Ota and T. Arai: “Local Obstacle Avoidance with Reliable Goal Acquisition for Mobile Robots,” 7th Int. Symp. Distributed Autonomous Robotic Systems (DARS2004), pp.41-50, 2004.

Y. Fukazawa, C. Trevai , J. Ota, H. Yuasa, T. Arai, and H. Asama: “Region Exploration Path Planning for a Mobile Robot Expressing Working Environment by Grid Points,” Proc. 2003 IEEE Int. Conf. Robotics and Automat., pp.2448-2454, 2003.

Y. Fukazawa, C. Trevai , J. Ota, H. Yuasa, T. Arai , H. Asama: “Controlling a Mobile Robot That Searches for and Rearranges Objects with Unknown Locations and Shapes,” Proc. 2003 IEEE/RSJ Int. Conf. Intell. Robots and Systems (IROS2003), pp.1721-1726, 2003.

C. Trevai , Y. Fukazawa, J. Ota, H. Yuasa, T. Arai, and H. Asama: “Exploration-Path Generation of Multiple Mobile Robots using Reaction-Diffusion Equation on a Graph, Proc. 2003 Int. Simp. Computational Intelligence in Robotics and Automation (CIRA2003), pp.1114-1119, 2003.

C. Trevai , Y. Fukazawa, J. Ota, H. Yuasa, T. Arai, and H. Asama: “Cooperative Exploration of Mobile Robots Using Reaction-Diffusion Equation on a Graph, Proc. 2003 IEEE Int. Conf. Robotics and Automat., pp.2269-2274, 2003.

C. Trevai, Y. Fukazawa, J. Ota, H. Yuasa, T. Arai, and H. Asama: “Cooperative Exploration Path Planning for Mobile Robots by Reaction-Diffusion Equation on Graph, Proc. 2002 IEEE Int. Conf. Ind. Technology (ICIT’02), pp.1266-1271, 2002.

C. Trevai , K. Ichikawa, Y. Fukazawa, H. Yuasa, J. Ota, T. Arai, and H. Asama: “Real-Time Cooperative Exploration by Reaction-Diffusion Equation on a Graph, Distributed Autonomous Robotics Systems 5, Eds. Asama,H., Arai,T., Fukuda,T., Hasegawa,T., Springer, pp.383-392,2002.

Yusuke Fukazawa: Estimating Mental Health from Smartphone and Social Media Data: LLM and Machine Learning meet Mental Health, Seminar, Department of Computer Science, The University of Verona, 2024

SDSI Collaboration from Corporate and Visiting Scholar Point of View, Fall 2019 SDSI / AI for Health Annual Meeting, Stanford university, 2019.11.21 (YouTube)

Challenges toward data driven innovation at mobile telecom company, Japan – New Zealand Summit on Smart Technologies, ICMU workshop, Oct.8, 2018.

Yusuke Fukazawa, Masato Yamada, Kenji Shinoda, Satoshi Kawasaki, Shin Ishiguro, Tomohiro Mimura: Data Driven Innovation through Collaboration with Enterprise Partners, New Breeze, Quarterly of The ITU Association of Japan, Vol. 32 No.1, 2020.