1. Yusuke Kawai, Yusuke Tanaka, Hiroyuki Toda, Yoshiharu Ishikawa,
    “Estimating People Flow from a Large Amount of Aggregated Data with a Few Tracking Data”,
    DBSJ Japanese Journal, Vol. 17, Article No. 7, March 2019. (in Japanese)
  2. Yusuke Kawai, Yoshiharu Ishikawa, Kento Sugiura,
    “Analysis of Evacuation Trajectory Data Using Tensor Decomposition”,
    Journal of Disaster Research, Vol. 14, No. 3, pp. 521-530, March 2019.
    – DOI: 10.20965/jdr.2019.p0521
  3. Jing Zhao, Yoshiharu Ishikawa, Lei Chen, Chuan Xiao, Kento Sugiura,
    “Hierarchical Histograms for Exploratory Analysis of Spatio-Temporal Array Data”,
    IEICE Transactions on Information and Sytems, Vol. E102-D, No. 4, pp. 788-799, April 2014.
    – DOI: 10.1587/transinf.2018DAP0020
  4. Sheng Hu, Chuan Xiao, Yoshiharu Ishikawa,
    “Scope-aware Code Completion with Discriminative Modeling”,
    Journal of Information Processing (JIP), Vol. 27, pp. 469-478, August 2019.
    – DOI: 10.2197/ipsjjip.27.469
  5. Sheng Hu, Chuan Xiao, Yoshiharu Ishikawa,
    “Loquat: An Interactive System Design for Location-aware Query Autocompletion”,
    Journal of Advances in Computer Networks (JCAN). (accepted for publication)
  6. Jianbin Qin, Chuan Xiao, Yaoshu Wang, Wei Wang, Xuemin Lin, Yoshiharu Ishikawa, Guoren Wang,
    “Generalizing the Pigeonhole Principle for Similarity Search in Hamming Space”,
    IEEE Transactions on Knowledge and Data Engineering. (accepted for publication)
    – DOI: 10.1109/TKDE.2019.2899597
  7. Yuya Sasaki, Takahiro Hara, Yoshiharu Ishikawa,
    “Efficient Framework for Processing Top-k Queries with Replication in Mobile Ad Hoc Networks”,
    GeoInformatica. (accepted for publication)
    – DOI: 10.1007/s10707-019-00363-0


  1. Jing Zhao, Yoshiharu Ishikawa, Chuan Xiao, Kento Sugiura,
    “Simulation Data Summarization based on Spatial Histograms”,
    21st International Conference on Network and Computing Technology (ICNCT 2019), Paris, France, January 2019.
  2. Kento Sugiura, Yoshiharu Ishikawa,
    “Regular Expression Pattern Matching with Sliding Windows over Probabilistic Event Streams”,
    The 6th IEEE International Conference on Big Data and Smart Computing (IEEE BigComp 2019), Kyoto, Japan, February-March, 2019.
    Best Paper Award Runner Up
  3. Yuya Sasaki, Jiahao Yu, Yoshiharu Ishikawa,
    “Road Segment Interpolation for Incomplete Road Data”,
    The 6th IEEE International Conference on Big Data and Smart Computing (IEEE BigComp 2019), Kyoto, Japan, February-March, 2019.
  4. Robert Waury, Christian S. Jensen, Satoshi Koide, Yoshiharu Ishikawa, Chuan Xiao,
    “Indexing Trajectories for Travel-Time Histogram Retrieval”,
    22nd International Conference on Extending Database Technology (EDBT 2019), pp. 157-168, Lisbon, Portugal, March 2019.
  5. Daichi Amagata, Takahiro Hara, Chuan Xiao,
    “Dynamic Set kNN Self-Join”,
    The 35th IEEE International Conference on Data Engineering (ICDE), Macau, April 2019. (accepted for publication)
  6. Sheng Hu, Chuan Xiao, Jianbin Qin, Yoshiharu Ishikawa, Qiang Ma,
    “Autocompletion for Prefix-Abbreviated Input”,
    ACM SIGMOD International Conference on Management of Data (SIGMOD 2019), Austerdam, The Netherlands, June-July 2019. (accepted for publication).


  1. Yoshiharu Ishikawa,
    “Pattern Matching over Probabilistic Data Streams”,
    The Big Data and Artificial Intelligence (BDAI) Workshop, Hong Kong University, April 2019. (invited talk)