H
Hisayuki Horai
Researcher at Keio University
Publications - 12
Citations - 1946
Hisayuki Horai is an academic researcher from Keio University. The author has contributed to research in topics: Delimiter & Mass spectrometry. The author has an hindex of 6, co-authored 12 publications receiving 1606 citations.
Papers
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Journal ArticleDOI
MassBank: a public repository for sharing mass spectral data for life sciences.
Hisayuki Horai,Masanori Arita,Masanori Arita,Shigehiko Kanaya,Yoshito Nihei,Tasuku Ikeda,Kazuhiro Suwa,Yuya Ojima,Kenichi Tanaka,Satoshi Tanaka,Ken Aoshima,Yoshiya Oda,Yuji Kakazu,Miyako Kusano,Takayuki Tohge,Fumio Matsuda,Yuji Sawada,Masami Yokota Hirai,Hiroki Nakanishi,Kazutaka Ikeda,Naoshige Akimoto,Takashi Maoka,Hiroki Takahashi,Takeshi Ara,Nozomu Sakurai,Hideyuki Suzuki,Daisuke Shibata,Steffen Neumann,Takashi Iida,Ken Tanaka,Kimito Funatsu,Fumito Matsuura,Tomoyoshi Soga,Ryo Taguchi,Kazuki Saito,Takaaki Nishioka +35 more
TL;DR: MassBank is the first public repository of mass spectra of small chemical compounds for life sciences and provides a merged spectrum for each compound prepared by merging the analyzed ESI-MS(2) data on an identical compound under different collision-induced dissociation conditions.
Patent
Document knowledge management apparatus and method
TL;DR: In this paper, an original text is subjected to a text interpretation to create a knowledge consisting of one or more words, each knowledge is added by a delimiter and a mark indicating whether the knowledge is an object of relationship (node) or a relationship (edge), thereby creating a marked original text.
Journal ArticleDOI
Data Mining Methods for Omics and Knowledge of Crude Medicinal Plants toward Big Data Biology.
Farit Mochamad Afendi,Farit Mochamad Afendi,Naoaki Ono,Yukiko Nakamura,Kensuke Nakamura,Latifah Kosim Darusman,Nelson Kibinge,Aki Hirai Morita,Ken Tanaka,Hisayuki Horai,Md. Altaf-Ul-Amin,Shigehiko Kanaya +11 more
TL;DR: Mathematical modeling introduced in the present study can be utilized in global analysis of big data targeting to reveal the underlying biology.
Proceedings ArticleDOI
Comparison of ESI-MS Spectra in MassBank Database
TL;DR: The weighting scheme for preprocessing peak intensities is discussed and comparison results for about 9,000 spectra in the publicly available MassBank database are demonstrated.
Journal ArticleDOI
Clustering of 3D‐Structure Similarity Based Network of Secondary Metabolites Reveals Their Relationships with Biological Activities
Yuki Ohtana,Azian Azamimi Abdullah,Altaf-Ul-Amin,Ming Huang,Naoaki Ono,Tetsuo Sato,Tadao Sugiura,Hisayuki Horai,Yukiko Nakamura,Aki Hirai,Klaus W. Lange,Nelson Kibinge,Tetsuo Katsuragi,Tsuyoshi Shirai,Shigehiko Kanaya +14 more
TL;DR: A network‐based approach to analyze relationships between 3D structure and biological activity of metabolites consisting of four steps as follows: construction of a network of metabolites based on structural similarity, classification of metabolites into structure groups, assessment of statistically significant relations between structure groups and biological activities, and 2‐dimensional clustering of the constructed data matrix.