Hiroshi Fujiwara

Publication Activity (10 Years)

Years Active: 1990-2024
Publications (10 Years): 32

Top Topics

Visual Representations

Positron Emission Tomography

Finite Automata

Top Venues

IEICE Trans. Inf. Syst.

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

Formaliz. Math.

Publications

Hiroshi Fujiwara, Keiji Hirao, Hiroaki Yamamoto
Best Possible Algorithms for One-Way Trading with Only the Maximum Fluctuation Ratio Available. IEICE Trans. Inf. Syst. 107 (3) (2024)
Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan
Numerical Reconstruction of Radiative Sources from Partial Boundary Measurements. SIAM J. Imaging Sci. 16 (2) (2023)
Hiroshi Fujiwara, Masaya Kawaguchi, Daiki Takizawa, Hiroaki Yamamoto
Optimal Online Bin Packing Algorithms for Some Cases with Two Item Sizes. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 106 (9) (2023)
Fabrice Matulic, Taiga Kashima, Deniz Beker, Daichi Suzuo, Hiroshi Fujiwara, Daniel Vogel
Above-Screen Fingertip Tracking with a Phone in Virtual Reality. CHI Extended Abstracts (2023)
Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii
Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-Level Index Modulation. IEICE Trans. Commun. 106 (12) (2023)
Yosuke Obe, Hiroaki Yamamoto, Hiroshi Fujiwara
Parallelization on a Minimal Substring Search Algorithm for Regular Expressions. IEICE Trans. Inf. Syst. 106 (5) (2023)
Hiroshi Fujiwara, Yuichi Shirai, Hiroaki Yamamoto
The Huffman Tree Problem with Upper-Bounded Linear Functions. IEICE Trans. Inf. Syst. (3) (2022)
Hiroaki Yamamoto, Ryosuke Oda, Yoshihiro Wachi, Hiroshi Fujiwara
Substring Searchable Symmetric Encryption Based on an Improved DAWG. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (12) (2022)
Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan
Numerical reconstruction of radiative sources from partial boundary measurements. CoRR (2022)
Hiroshi Fujiwara, Kanaho Hanji, Hiroaki Yamamoto
Online Removable Knapsack Problem for Integer-Sized Unweighted Items. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2022)
Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii
Performance Evaluation of Highly Efficient Information Collection Methods by Trend Analysis of Sensor Information Using Pre-learning. ICUFN (2022)
Fabrice Matulic, Aditya Ganeshan, Hiroshi Fujiwara, Daniel Vogel
Phonetroller: Visual Representations of Fingers for Precise Touch Input with Mobile Phones in VR. CHI (2021)
Hiroshi Fujiwara, Ryota Adachi, Hiroaki Yamamoto
Algorithm NextFit for the Bin Packing ProblemThis work was supported by JSPS KAKENHI Grant Numbers JP20K11689, JP20K11676, JP16K00033, JP17K00013, JP20K11808, and JP17K00183. Formaliz. Math. 29 (3) (2021)
Hiroshi Fujiwara, Ken Endo, Hiroaki Yamamoto
Analysis of Lower Bounds for Online Bin Packing with Two Item Sizes. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2021)
Arata Takahashi, Osamu Takyu, Hiroshi Fujiwara, Takeo Fujii, Tomoaki Ohtsuki
Overloaded Wireless MIMO Switching for Information Exchanging through Untrusted Relay in Secure Wireless Communication. IEICE Trans. Commun. (10) (2021)
Hiroaki Yamamoto, Hiroshi Fujiwara
A New Finite Automata Construction Using a Prefix and a Suffix of Regular Expressions. IEICE Trans. Inf. Syst. (3) (2021)
Hiroshi Fujiwara, Yuta Wanikawa, Hiroaki Yamamoto
Asymptotic Approximation Ratios for Certain Classes of Online Bin Packing Algorithms. IEICE Trans. Inf. Syst. (3) (2021)
Tasuku Takeda, Hiroshi Fujiwara, Mikio Suga
Development of three-dimensional integral-type reconstruction formula for magnetic resonance elastography. Int. J. Comput. Assist. Radiol. Surg. 16 (11) (2021)
Yu-Hsun Lee, Hiroshi Fujiwara
Multiple-Precision Arithmetic of Biot-Savart Integrals for Reconnections of Vortex Filaments. ICCSA (5) (2021)
Yu Jiang, Hiroshi Fujiwara, Gen Nakamura
Erratum for "Approximate Steady State Models for Magnetic Resonance Elastography". SIAM J. Appl. Math. 80 (4) (2020)
Hiroshi Fujiwara, Hokuto Watari, Hiroaki Yamamoto
Dynamic Programming for the Subset Sum Problem. Formaliz. Math. 28 (1) (2020)
Arata Takahashi, Osamu Takyu, Hiroshi Fujiwara
Construction of Selection-Scheduling of Accessing Node for High Efficiency Information Exchanging in Overloaded Wireless MIMO Switching. ICTC (2020)
Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan
Numerical Reconstruction of Radiative Sources in an Absorbing and Nondiffusing Scattering Medium in Two Dimensions. SIAM J. Imaging Sci. 13 (1) (2020)
Hiroshi Fujiwara, Kei Shibusawa, Kouki Yamamoto, Hiroaki Yamamoto
Bounds for the Multislope Ski-Rental Problem. IEICE Trans. Inf. Syst. (3) (2020)
Kanaho Hanji, Hiroshi Fujiwara, Hiroaki Yamamoto
Online Removable Knapsack Problems for Integer-Sized Items. TAMC (2020)
Hiroaki Yamamoto, Yoshihiro Wachi, Hiroshi Fujiwara
Space-Efficient and Secure Substring Searchable Symmetric Encryption Using an Improved DAWG. ProvSec (2019)
Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan
Numerical reconstruction of radiative sources in an absorbing and non-diffusing scattering medium in two dimensions. CoRR (2019)
Ryuji Miyoshi, Hiroaki Yamamoto, Hiroshi Fujiwara, Takashi Miyazaki
Practical and Secure Searchable Symmetric Encryption with a Small Index. NordSec (2017)
Hiroshi Fujiwara, Atsushi Matsuda, Toshihiro Fujito
Competitive Analysis for the Flat-Rate Problem. IEICE Trans. Inf. Syst. (3) (2016)
Hiroshi Fujiwara, Takahiro Seki, Toshihiro Fujito
Online Weight Balancing on the Unit Circle. IEICE Trans. Inf. Syst. (3) (2016)
Hiroshi Fujiwara, Shunsuke Satou, Toshihiro Fujito
Competitive Analysis for the 3-Slope Ski-Rental Problem with the Discount Rate. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2016)
Hiroshi Fujiwara, Takuma Kitano, Toshihiro Fujito
On the best possible competitive ratio for the multislope ski-rental problem. J. Comb. Optim. 31 (2) (2016)
Hiroshi Fujiwara, Koji M. Kobayashi
Improved lower bounds for the online bin packing problem with cardinality constraints. J. Comb. Optim. 29 (1) (2015)
Hiroshi Fujiwara, Takuya Nakamura, Toshihiro Fujito
The Huffman Tree Problem with Unit Step Functions. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2015)
Ho NamKoong, Hiroshi Fujiwara, Makoto Ishii, Kazuma Yagi, Mizuha Haraguchi, Masako Matsusaka, Shoji Suzuki, Takanori Asakura, Takahiro Asami, Fumitake Saito, Koichi Fukunaga, Sadatomo Tasaka, Tomoko Betsuyaku, Naoki Hasegawa
F-fluorodeoxyglucose positron emission tomography-computed tomography in a patient with human immunodeficiency virus infection: A case report. BMC Medical Imaging 15 (2015)
Hiroshi Fujiwara, Tobias Jacobs
On the Huffman and Alphabetic Tree Problem with General Cost Functions. Algorithmica 69 (3) (2014)
Hiroshi Fujiwara, Yasuhiro Konno, Toshihiro Fujito
Analysis of Lower Bounds for the Multislope Ski-Rental Problem. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2014)
Hiroshi Fujiwara, Takahiro Seki, Toshihiro Fujito
Online Weight Balancing on the Unit Circle. JCDCGG (2013)
Hiroshi Fujiwara, Koji M. Kobayashi
Improved Lower Bounds for the Online Bin Packing Problem with Cardinality Constraints. COCOON (2013)
Eishi Chiba, Hiroshi Fujiwara, Yoshiyuki Sekiguchi, Toshihide Ibaraki
Collision Probability in an In-Line Equipment Model under Erlang Distribution. IEICE Trans. Inf. Syst. (3) (2013)
Hiroshi Fujiwara, Yoshiyuki Sekiguchi
An improved analysis of SRPT scheduling algorithm on the basis of functional optimization. Inf. Process. Lett. 112 (23) (2012)
Hiroshi Fujiwara, Kazuo Iwama, Yoshiyuki Sekiguchi
Average-case competitive analyses for one-way trading. J. Comb. Optim. 21 (1) (2011)
Hiroshi Fujiwara, Takuma Kitano, Toshihiro Fujito
On the Best Possible Competitive Ratio for Multislope Ski Rental. ISAAC (2011)
Yu Jiang, Hiroshi Fujiwara, Gen Nakamura
Approximate Steady State Models for Magnetic Resonance Elastography. SIAM J. Appl. Math. 71 (6) (2011)
Hiroshi Fujiwara, Tobias Jacobs
On the Huffman and Alphabetic Tree Problem with General Cost Functions. ESA (1) (2010)
Hiroshi Fujiwara, Kazuo Iwama, Yoshiyuki Sekiguchi
Average-Case Competitive Analyses for One-Way Trading. COCOON (2008)
Hiroshi Fujiwara, Kazuo Iwama, Kouki Yonezawa
Online chasing problems for regular polygons. Inf. Process. Lett. 108 (3) (2008)
Eishi Chiba, Hiroshi Fujiwara, Yoshiyuki Sekiguchi, Toshihide Ibaraki
Collision Probability in an Automated Production Line under Erlang Distribution. RIVF (2007)
Hiroshi Fujiwara, Kazuo Iwama, Kouki Yonezawa
Online Chasing Problems for Regular n-Gons. RIVF (2007)
Susanne Albers, Hiroshi Fujiwara
Energy-efficient algorithms for flow time minimization. ACM Trans. Algorithms 3 (4) (2007)
Susanne Albers, Hiroshi Fujiwara
Energy-Efficient Algorithms for Flow Time Minimization. STACS (2006)
Hiroshi Fujiwara, Kazuo Iwama
Average-Case Competitive Analyses for Ski-Rental Problems. Algorithmica 42 (1) (2005)
Hiroshi Fujiwara, Kazuo Iwama
Average-Case Competitive Analyses for Ski-Rental Problems. Algorithms for Optimization with Incomplete Information (2005)
Hiroshi Fujiwara, Kazuo Iwama
Average-Case Competitive Analyses for Ski-Rental Problems. ISAAC (2002)
Hiroshi Fujiwara, Ming L. Liou, Ming-Ting Sun, Kun-Min Yang, Masanori Maruyama, Kazuyoshi Shomura, Koichi Ohyama
An all-ASIC implementation of a low bit-rate video codec. IEEE Trans. Circuits Syst. Video Technol. 2 (2) (1992)
Masanori Maruyama, H. Uwabu, I. Iwasaki, Hiroshi Fujiwara, Toshifumi Sakaguchi, Ming-Ting Sun, Ming Lei Liou
VLSI architecture and implementation of a multifunction, forward/inverse discrete cosine transform processor. VCIP (1990)