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Hitachi

Hitachi America, Ltd.Hitachi America, Ltd.

Hitachi America R&D

Hitachi America, Ltd. Research & Development - Publications

Automotive

  • Integrated Steering and Braking Control System for Collision Avoidance by Using Virtual Repulsive Force Field Method
    ASME 2018 Dynamic Systems and Control Conference, Volume 2, ISBN: 978-0-7918-5190-6.      Atsushi Yokoyama, Pongsathorn Raksincharoensak, Naoto Yoshikawa
  • Computational analysis of DI pump ticking noise excited by solenoid valve impact
    INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise 18, Chicago, IL, pages 4989 - 5999, pp. 5416-5421. Qifan He, Nikhil Seera and Akira Inoue
  • Collision Avoidance Control on 2D Planar Motion Based on Vitual Repulsive Force Field
    J-STAGE, 2018 Volume 49 Issue 2 Pages 353-358, ISSN: 0287-8321. Atsushi Yokoyama, Pongsathorn Raksincharoensak, Naoto Yoshikawa
  • Collision Avoidance Control System by Using Virtual Repulsive Force Field Method
    14th international symposium on advanced vehicle control (2018), Atsushi Yokoyama, Pongsathorn Raksincharoensak, Naoto Yoshikawa
  • Mechanical Performance of Friction Stir Linear Welds of AI to Mg Alloys
    SAE Technical Paper 2017-01-0467, 2017. Yuan, W., Jordon, B., Ghaffari, B., Rao, H. et al.
  • Exactness of alternative force estimation methods and applications to power flow and transfer path analysis, The Journal of the Acoustical Society of America, Volume 141 issue 3, EL255 (2017). Akira Inuoe
  • Microstructure and mechanical behaviours of friction stir welded dissimilar alloys and materials, 11th International symposium on friction stir welding (2016). Wei Yuan, Lili Zheng and Harsha Badarinarayan
  • An Application of the Particle Velocity Transfer Path Analysis
    SAE International Journal of Alternative Powertrains, 2013-01-1999. Akira Inoue, Yosuke Tanabe and Masanori Watanabe
  • Development of Particle Velocity Transfer Path Analysis
    Proceeding of Internoise 2012 & ASME NCAD meeting, 2012, IN12_1018. Akira Inoue and Yosuke Tanabe
  • Controlling the Direction of Sound Intensity Based on Sound Intensity Transfer Path Analysis
    Proceeding of AES 48th International Conference, 2012. Yosuke Tanabe and Akira Inoue.
  • Application of Sound Intensity Transfer Path Analysis to a Booming Sound in Vehicle Interior
    Proceeding of Internoise 2013. Yosuke Tanabe and Akira Inoue.
  • A Review of Power Flow Formulation as Dissipated Power in Vibratory Systems
    proceeding of 20th International Congress on Sound & Vibration, 2013. Akira Inoue and Yosuke Tanabe
  • Acoustic sound source identification in a Gasoline DI pump for high pressure fuel flows
    SME 2014 4th Joint US-European Fluids Engineering Division Meeting, FEDSM2014-21633. Prashanth Avireddi and Nikhil Seera
  • Effect of process parameters on mechanical properties of friction stir spot welded magnesium to aluminum alloys
    Materials & Design, 66 (2015) 235-245. H.M. Rao, W. Yuan, H. Badarinarayan
  • Friction stir welding of dissimilar alloys and materials
    A Volume in the Friction Stir Welding and Processing Book Series, Elsevier 2015. N. Kumar, R.S. Mishra, W. Yuan
  • Integrated computational model for surface strain characterization in stainless steels and the experimental validation
    ICME proceeding 2015. L. Zheng, W. Yuan, H. Badarinarayan
  • Friction stir welding of dissimilar lightweight metals with addition of adhesive
    TMS2015, Friction stir welding and processing VIII (2015). W. Yuan, K. Shah, B. Ghaffari, H. Badarinarayan.
  • Microstructure, texture, and mechanical properties of friction stir spot welded rare-earth containing ZEK100 magnesium alloy sheets
    Materials Science and Engineering: A, 618 (2014) 637-644. R.I. Rodriguez, J.B. Jordon, H.M. Rao, H. Badarinarayan, W. Yuan, H. El Kadiri, P.G. Allison
  • Friction stir spot welding of rare-earth containing ZEK100 magnesium alloy sheets
    Materials & Design, 56 (2014) 750-754. H.M. Rao, R.I. Rodriguez, J.B. Jordon, M.E. Barkey, Y.B. Guo, H. Badarinarayan, W. Yuan.
  • Friction stir welding of dissimilar aluminum and magnesium alloys for automotive sub-structure
    10th International Symposium on Friction Stir Welding, Beijing, China, May 2014. W. Yuan, H. Badarinarayan, H.M. Rao.
  • Crystal plasticity and grain-orientation-dependent hkl-lattice strain in polycrystalline SUS316
    TMS2014 Supplemental Proceedings, pp. 171-180. L. Zheng, W. Yuan, H. Badarinarayan.
  • Influence of structural integrity on fatigue behavior of friction stir spot welded AZ31 Mg alloy
    Materials Science and Engineering: A, 564 (2013) 369-380. H.M. Rao, J.B. Jordon, M.E. Barkey, Y.B. Guo, X. Su, H. Badarinarayan.
  • Deformation behavior of friction stir processed magnesium alloys
    Magnesium Technology, 2011. Q. Yang, S. Mironov, Y.S. Sato, K. Okamoto.
  • Monotonic and fatigue behavior of Mg alloy friction stir spot welds: An international benchmark test in the "magnesium front end research and development" project
    Magnesium Technology, 2011. H. Badarinarayan, S.B. Behravesh, S.D. Bhole, D.L. Chen, J. Grantham, M.F. Horstemeyer, H. Jahed, J.B. Jordon, S. Lambert, H.A. Patel, X. Su, Y. Yang.
  • Effect of weld orientation on static strength and failure mode of friction stir stitch welds in lap-shear specimens of aluminum 6022-T4 sheets
    Fatigue & Fracture of Engineering Materials & Structures, 34 (2011) 908-920. H. Badarinarayan, Q. Yang, K. Okamoto.
  • Effect of tool geometry and process condition on the strength of a magnesium friction stir lap linear weld, TMS2011.
    Q. Yang, X. Li, K. Chen, Y.J. Shi.
  • Effect of tool geometry and process condition on static strength of a magnesium friction stir lap linear weld
    Materials Science and Engineering: A, 528 (2011) 2463-2478. Q. Yang, X. Li, K. Chen, Y.J. Shi.
  • Analysis of effect of tool geometry on plastic flow during friction stir spot welding using particle method
    Journal of Materials Processing Technology, 210 (2010) 1455-1463. S. Hirasawa, H. Badarinarayan, K. Okamoto, T. Tomimura, T. Kawanami.
  • Material flow during friction stir spot welding
    Materials Science and Engineering: A, 527 (2010) 4389-4398. Q. Yang, S. Mironov, Y.S. Sato, K. Okamoto.
  • Fatigue evaluation of friction stir spot welds in magnesium sheets
    Magnesium Technology, 2010. J.B. Jordon, M.F. Horstemeyer, J. Grantham, H. Badarinarayan.
  • Effect of interfacial microstructure on lap shear strength of friction stir spot weld of aluminum alloy to magnesium alloy
    Science and Technology of Welding and Joining, 15 (2010) 319-324. Y. S. Sato, A. Shiota, H. Kokawa, K. Okamoto, Q. Yang, C. Kim.
  • Specific character of material flow in near-surface layer during friction stir processing of AZ31 magnesium alloy
    Metallurgical and Materials Transactions A, 41 (2010) 1016-1024. S. Mironov, Q. Yang, H. Takahashi, I. Takahashi, K. Okamoto, Y.S. Sato, H. Kokawa.
  • Cyber Physical System: A Virtual CPU Based Mechatronic Simulation.
    IFAC 2010

Machine Learning / AI

  • Remaining Useful Life Estimation Using Functional Data Analysis, IEEE International Conference on Prognostics and Health Management (ICPHM), 2019
    Qiyao Wang, Shuai Zheng, Ahmed Farahat, Susumu Serita, Chetan Gupta
  • Fault Detection and Isolation in Industrial Networks using Graph Convolutional Neural Networks
    IEEE International Conference on Prognostics and Health Management (ICPHM), 2019
    Hamed Khorasgani, Arman Hasanzadeh Moghimi, Ahmed Farahat, Chetan Gupta
  • Multilayer Perceptron for Sparse Functional Data
    International Joint Conference on Neural Networks (IJCNN), 2019
    Qiyao Wang, Shuai Zheng, Ahmed Farahat, Susumu Serita, Takashi Saeki, Chetan Gupta
  • Maximizing SLU Performance with Minimal Training Data Using Hybrid RNN Plus Rule-based Approach, Special Interest Group on Discourse and Dialogue - SIGDIAL 2018
    Adriano S. Arantes, Takeshi Homma, Maria Teresa Gonzalez Diaz, Masahito Togami
  • Equipment Health Indicator Learning Using Deep Reinforcement Learning
    ECML/PKDD, European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, June 14, 2018. Chi Zhang, Chetan Gupta, Ahmed Farahat, Kosta Ristovski
  • What Maintenance is Worth the Money? A Data-Driven Answer
    INDIN2018, May 18, 2018.  Qiyao Wang, Ahmed Farahat, Kosta Ristovski, Hsiu-Khuern Tang, Susumu Serita, Chetan Gupta
  • A Framework for Unifying Model-based and Data-driven Fault Diagnosis
    PHM Society Conference 2018, August 2018. Chi Zhang, Chetan Hamed Khorasgani, Ahmed Farahat, Kosta Ristovski, Chetan Gupta, Gautam Biswas
  • Remaining Useful Life Estimation for Systems with Abrupt Failures
    PHM Society Conference 2018, August 2018. Wei Huang, Hamed Khorasgani, Chetan Gupta, Ahmed Farahat, Shuai Zheng
  • Two Birds with One Network: Unifying Event Prediction and Time-to-failure Modeling
    IEEE International Conference on Big Data, October 16, 2018. Chi Zhang, Karan Aggarwal
  • Long Short-term Memory Network for Remaining Useful Life Estimation
    IEEE International Conference on Prognostics and Health Management (ICPHM), 2017.
    Shuai Zheng, Kosta Ristovski, Ahmed Farahat, Chetan Gupta  
  • Dispatch with Confidence: Integration of Machine Learning, Optimization and Simulation for Open Pit Mines
    The 23rd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD), 2017. Kosta Ristovski, Chetan Gupta, Kunihiko Harada, Hsiu-Khuern Tang
  • Deep Learning Approach for Uncertainty Estimation in Prognostics
    The 2nd ACM SIGKDD Workshop on Machine Learning for Prognostics and Health Management (ML for PHM), 2017.  Dipanjan Ghosh, Kosta Ristovski, Chetan Gupta
  • Analytics-Driven Industrial Big Data Applications. Journal of Japan Industrial Management Association, 25(2), 96-105. Gupta, C., et. al.
  • Long Short-Term Memory Network for Remaining Useful Life Estimation. In Prognostics and Health Management (PHM), 2017 IEEE Conference on. IEEE. Zheng, S., Ristovski, K., Farahat, A., Gupta, C.
  • Dispatch with Confidence: Integration of Machine Learning, Optimization and Simulation for Open Pit Mines. International conference on knowledge discovery and data mining (KDD). Ristovski, K., Gupta, C., Harada K., & Tang, H-K. (2017).
  • Collaborative Creation with Customers for Predictive Maintenance Solutions on Hitachi IoT Platform. Hitachi Review, 2016, 65(9), 403. Gupta, C., Farahat, A., Hiruta, T., Ristovski, K., & Dayal, U.
  • An Approach to Benchmarking Industrial Big Data Applications. In Proc. of Workshop on Big Data Benchmarks (WBDB 2014), 45-60. Dayal, U., Gupta, C., Vennelakanti, R., Vieira, M., & Wang, S. (2015).
  • Expanding Global Big Data Solutions with Innovative Analytics. Hitachi Review, 2014, 96(4), 259-265. Dayal, U., Akatsu, M., Gupta, C., Vennelakanti R., Lenardi, M.

IoT / Edge

  • Non-Invasive Data Extraction from Machine Display Units Using Video Analytics, in proc. of International Conference on Internet of Things, June 2019, New York, USA. R. Kaur, J. Acharya, S. Gaur
  • Edge compression of GPS data for mobile IoT, in proc. of IEEE Fog World Congress, Nov 2017 in Santa Clara, USA. J. Acharya, G. Gaur,
  • Fog Use Case Scenarios: Autonomous Driving, An OpenFog Consortium White Paper, Oct 2017 J. Acharya (contributing author),
  • Fog Computing Design Principles for Industrial IoT Applications
  • Mobile Network on Twitter, Mobile World Congress (MWC), Barcelona, 2015 URL: https://www.youtube.com/watch?v=rhKT0dvRfxA
  • Optimizing Vertical Sectorization for High-Rises, Proc. of IEEE International Conference on Computing, Networking and Communications (ICNC), J. Acharya and S. Akoum; Anaheim, CA, Feb 2015;
  • Vertical Beamforming for Three-Dimensional User Placement, Proc. of IEEE International Conference on Computing, Networking and Communications (ICNC), Anaheim, CA, Feb 2015.
    S. Akoum and J. Acharya;
  • Heterogeneous Networks in LTE-Advanced, Wiley, April 2014. J. Acharya, L. Gao, and S. Gaur;
  • Full-Dimensional MIMO for Future Cellular Networks, Proc. Of IEEE Radio Wireless Week, Newport Beach, CA, Jan. 2014. S. Akoum, J. Acharya
  • Heterogeneous Networks – Theory and Standardization in LTE, Tutorial presentation at IEEE Wireless Communications and Networking Conference; Shanghai China, April 2013. J. Acharya, L. Gao, and S. Gaur.
  • Multiuser MIMO Transmission in Distributed Antenna Systems with Heterogeneous User Traffic, Proc. of IEEE VTC; Yokohama, Japan, May 2012. L. Gao, J. Acharya, and S. Gaur.
  • Heterogeneous Networks – Theory and Standardization in LTE, Tutorial presentation at IEEE Vehicular Technology Conference; Yokohama, Japan, May 2012. J. Acharya, L. Gao, and S. Gaur.

Platform

  • Improving Snapshot Performance by SSD Controller in All-flash Array, Proc. of 15th International Conference Applied Computing, pp. 253-260, Budapest, Hungary, Oct. 2018. M. Imazaki, N. Shimozono, and N. Komoda.
  • Efficient Snapshot Method for All-flash Array, IADIS International Journal on Computer Science and Information Systems, vol. 13, issue 2, pp. 109-123, Dec. 2018. M. Imazaki, N. Shimozono, and N. Komoda.
  • A Statistical Inference Method of Configuration Data for Root Cause Analysis for Fault Management, Journal of Information Processing Society of Japan, Vol. 56(3), pp. 767-776, Mar. 15, 2015; Y. Sakashita, et al.,
  •  Simulation of Power Saving in Private Cloud Environment, Proc. of the 42nd annual ACM SIGUCCS conference on User services, Pages 53-57, Salt Lake City, UT, Nov. 2014. Y. Sakashita, et al.
  •  Optimization of the Hybrid Cloud Operation by Dynamic Placement Method, Journal of Information Processing Society of Japan, Vol. 54(4), pp. 1581-1591, Apr. 15, 2013. H. Emaru, et al.
  •  Performance Management for the Dynamic Tiering Storage by Virtual Volume Clustering, Journal of Information Processing Society of Japan, Vol. 52(7), pp. 2234-2244, Sept. 15, 2011. H. Emaru, et al.

Finance

  • A Practical Screening Method for Blockchain-Based Systems
    Proceeding of The 2018 IEEE International Conference on Blockchain, 2018; Y. Kondo, T. Shimosawa, S. Oshima