Publications (2021)

Journal
Conference

Journal

1.	Shohei Matsugu, Hiroaki Shiokawa, and Hiroyuki Kitagawa, "Fast Algorithm for Attributed Community Search", Journal of Information Processing, Vol. 29, pp. 188-196, February 2021. DOI:https://doi.org/10.2197/ipsjjip.29.188
2.	Happy Buzaaba, Toshiyuki Amagasa, "Question Answering Over Knowledge Base: A Scheme for Integrating Subject and the Identified Relation to Answer Simple Questions", SN Computer Science, Vol. 2, No. 1, Article 25, January 2021. DOI:https://doi.org/10.1007/s42979-020-00421-7
3.	Taro Aso, Toshiyuki Amagasa, and Hiroyuki Kitagawa, "A System for Relation-Oriented Faceted Search over Knowledge Bases", International Journal of Web Information Systems (IJWIS), Vol. 17, No. 6, pp. 698-713, 2021.
4.	David Ifeoluwa Adelani, Jade Abbott, Graham Neubig, Daniel D'souza, Julia Kreutzer, Constantine Lignos, Chester Palen-Michel,Happy Buzaaba, Shruti Rijhwani, Sebastian Ruder, Stephen Mayhew, Israel Abebe Azime, Shamsuddeen H. Muhammad, Chris Chinenye Emezue, Joyce Nakatumba-Nabende, Perez Ogayo, Aremu Anuoluwapo, Catherine Gitau, Derguene Mbaye, Jesujoba Alabi, Seid Muhie Yimam, Tajuddeen Rabiu Gwadabe, Ignatius Ezeani, Rubungo Andre Niyongabo, Jonathan Mukiibi, Verrah Otiende, Iroro Orife, Davis David, Samba Ngom, Tosin Adewumi, Paul Rayson, Mofetoluwa Adeyemi, Gerald Muriuki, Emmanuel Anebi, Chiamaka Chukwuneke, Nkiruka Odu, Eric Peter Wairagala, Samuel Oyerinde, Clemencia Siro, Tobius Saul Bateesa, Temilola Oloyede, Yvonne Wambui, Victor Akinode, Deborah Nabagereka, Maurice Katusiime, Ayodele Awokoya, Mouhamadane MBOUP, Dibora Gebreyohannes, Henok Tilaye, Kelechi Nwaike, Degaga Wolde, Abdoulaye Faye, Blessing Sibanda, Orevaoghene Ahia, Bonaventure F. P. Dossou, Kelechi Ogueji, Thierno Ibrahima DIOP, Abdoulaye Diallo, Adewale Akinfaderin, Tendai Marengereke, Salomey Osei "MasakhaNER: Named Entity Recognition for African Languages" In Transactions of the Association for Computational Linguistics (2021) 9: 1116-1131 (MIT Press Direct) https://direct.mit.edu/tacl/article/doi/10.1162/tacl_a_00416/107614/MasakhaNER-Named-Entity-Recognition-for-African

Conference

1.	Hiroaki Shiokawa, "Scalable Affinity Propagation for Massive Datasets," In Proceedings of the 35th AAAI Conference on Artificial Intelligence (AAAI2021), 35(11), pp.9639-9646, Virtual Conference, February 2021.
2.	Hayata Takagi, Hanxiong Chen, Kazutaka Furuse, and Hiroyuki Kitagawa, (Best Paper Award) "Aggregate Nearest Neighborhood Queries", Proc. Future of Information and Communications Conference (FICC) 2021, pp. 396-414, April 2021.
3.	Yasuyuki Kato, Hanxiong Chen, Kazutaka Furuse, and Hiroyuki Kitagawa, "Unifying Spatial Keyword Indexing in Continuous Search on Dynamic Objects", Proc. Future of Information and Communications Conference (FICC) 2021, pp. 415-430, April 2021.
4.	Vijdan Khalique and Hiroyuki Kitagawa, "VOA*: Fast Angle-Based Outlier Detection Over High-Dimensional Data Streams", Proc. 25th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD2021), pp. 44-52, May 11-14, 2021. (Acceptance rate 20%) DOI:https://doi.org/10.1007/978-3-030-75762-5_4
5.	Ryohei Kobayashi, Kento Miura, Norihisa Fujita, Taisuke Boku, Toshiyuki Amagasa, "A Sorting Library for FPGA Implementation in OpenCL Programming," Proc. 11th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies (HEART 2021), Article No. 1, pp. 1-6, June 21-23, 2021.
6.	Shunta Ishihara, Chiemi Watanabe, Toshiyuki Amagasa, "Supporting Insertion in Encrypted Multi-Maps with Volume Hiding", The 5th IEEE International Workshop on Big Data and IoT Security in Smart Computing (IEEE BITS 2021) in conjunction with SMARTCOMP 2021, pp. 264-269, Virtual Conference, August 23rd, 2021. (to appear)
7.	Carina Miwa Yoshimura and Hiroyuki Kitagawa, "TLV-Bandit: Bandit Method for Collecting Topic-related Local Tweets", Proc. IEEE 4th International Conference on Multimedia Information Processing and Retrieval (MIPR2021), pp. 56-62, September 8-10, 2021. Tokyo, Japan. (Online)
8.	Masaya Yamada, Hiroyuki Kitagawa, Toshiyuki Amagasa, Akiyoshi Matono, "Augmented Lineage: Traceability of Data Analysis Including Complex UDFs", In Proceedings of the 32nd International Conference on Database and Expert Systems Applications (DEXA2021) , Vol. 1, pp. 65-77, September 27-30, 2021. (Online) (Acceptance rate 27%) DOI:https://doi.org/10.1007/978-3-030-86472-9_6
9.	Shuya Suganami and Toshiyuki Amagasa, "GPU-accelerated vertex orbit counting for 5-vertex subgraphs", In Proceedings of the 32nd International Conference on Database and Expert Systems Applications (DEXA2021) , Vol. 1, pp. 205-217, September 27-30, 2021. (Online) (Acceptance rate 27%) DOI:https://doi.org/10.1007/978-3-030-86472-9_19
10.	Kota Yukawa and Toshiyuki Amagasa, "Online Optimized Product Quantization for Dynamic Database using SVD-Updating", In Proceedings of the 32nd International Conference on Database and Expert Systems Applications (DEXA2021) , Vol. 1, pp. 273-284, September 27-30, 2021. (Online) (Acceptance rate 27%) DOI:https://doi.org/10.1007/978-3-030-86472-9_25
11.	Hiroaki Shiokawa, "Fast ObjectRank for Large Knowledge Databases," In Proceedings of the 20th International Semantic Web Conference (ISWC2021), Virtual Conference, Octorber 2021. (Research Track)
12.	Hina Suzuki, Hanxiong Chen, Kazutaka Furuse, and Toshiyuki Amagasa, "Dense Nearest Neighborhood Query", EasyChair Preprint No. 6606, 4th International Conference on Intelligent Technologies and Applications (INTAP 2021), Online (Grimstad, Norway), Oct. 11-13, 2021.
13.	Suomi Kobayashi, Shohei Matsugu, Hiroaki Shiokawa, "Fast Indexing Algorithm for Efficient kNN Query on Complex Networks," In Proceedings of the 2021 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM2021), Virtual Conference, November 2021.
14.	Happy Buzaaba, Toshiyuki Amagasa, "A Scheme for Efficient Question Answering with Low Dimension Reconstructed Embeddings", The 23rd International Conference on Information Integration and Web-based Applications & Services (iiWAS 2021), pp. 303-310, Virtual Conference (Linz, Austria), Nov. 29-Dec. 1, 2021.
15.	Taro Aso, Toshiyuki Amagasa, Hiroyuki Kitagawa, "A Method for Searching Documents using Knowledge Bases", The 23rd International Conference on Information Integration and Web-based Applications & Services (iiWAS 2021), pp. 250-258, Virtual Conference (Linz, Austria), Nov. 29-Dec. 1, 2021.
16.	Toshiyuki Hirakata, Toshiyuki Amagasa, "A Dynamic Load-balancing Method for Distributed RDF Stream Processing Systems", The 23rd International Conference on Information Integration and Web-based Applications & Services (iiWAS 2021), pp. 410-414, Virtual Conference (Linz, Austria), Nov. 29-Dec. 1, 2021. (short paper)
17.	Marika Nakano, Toshiyuki Amagasa, "Query Processing over Multiple Knowledge Bases and Text Documents", The 23rd International Conference on Information Integration and Web-based Applications & Services (iiWAS 2021), pp. 212-216, Virtual Conference (Linz, Austria), Nov. 29-Dec. 1, 2021. (short paper)
18.	Shunta Ishihara, Chiemi Watanabe, Toshiyuki Amagasa, "Supporting Insertion in an Encrypted Multi-Maps with Volume Hiding using Trusted Execution Environment", DOLAP 2022: The 23rd International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP) co-located with EDBT/ICDT 2021, pp. 61-70, Virtual Conference (Nicosia, Cyprus), March 23, 2021.