Hiroshi Fujiwara

According to our database, Hiroshi Fujiwara authored at least 49 papers between 1990 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

Best Possible Algorithms for One-Way Trading with Only the Maximum Fluctuation Ratio Available.

Hiroshi Fujiwara, Keiji Hirao, Hiroaki Yamamoto

IEICE Trans. Inf. Syst., 2024

2023

Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-Level Index Modulation.

Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii

IEICE Trans. Commun., December, 2023

Optimal Online Bin Packing Algorithms for Some Cases with Two Item Sizes.

Hiroshi Fujiwara, Masaya Kawaguchi, Daiki Takizawa, Hiroaki Yamamoto

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., September, 2023

Numerical Reconstruction of Radiative Sources from Partial Boundary Measurements.

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

SIAM J. Imaging Sci., June, 2023

Parallelization on a Minimal Substring Search Algorithm for Regular Expressions.

Yosuke Obe, Hiroaki Yamamoto, Hiroshi Fujiwara

IEICE Trans. Inf. Syst., May, 2023

Above-Screen Fingertip Tracking with a Phone in Virtual Reality.

Fabrice Matulic, Taiga Kashima, Deniz Beker, Daichi Suzuo, Hiroshi Fujiwara, Daniel Vogel

Proceedings of the Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems, 2023

2022

Substring Searchable Symmetric Encryption Based on an Improved DAWG.

Hiroaki Yamamoto, Ryosuke Oda, Yoshihiro Wachi, Hiroshi Fujiwara

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., December, 2022

Online Removable Knapsack Problem for Integer-Sized Unweighted Items.

Hiroshi Fujiwara, Kanaho Hanji, Hiroaki Yamamoto

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., September, 2022

The Huffman Tree Problem with Upper-Bounded Linear Functions.

Hiroshi Fujiwara, Yuichi Shirai, Hiroaki Yamamoto

IEICE Trans. Inf. Syst., 2022

Performance Evaluation of Highly Efficient Information Collection Methods by Trend Analysis of Sensor Information Using Pre-learning.

Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii

Proceedings of the Thirteenth International Conference on Ubiquitous and Future Networks, 2022

2021

A New Finite Automata Construction Using a Prefix and a Suffix of Regular Expressions.

Hiroaki Yamamoto, Hiroshi Fujiwara

IEICE Trans. Inf. Syst., 2021

Asymptotic Approximation Ratios for Certain Classes of Online Bin Packing Algorithms.

Hiroshi Fujiwara, Yuta Wanikawa, Hiroaki Yamamoto

IEICE Trans. Inf. Syst., 2021

Overloaded Wireless MIMO Switching for Information Exchanging through Untrusted Relay in Secure Wireless Communication.

Arata Takahashi, Osamu Takyu, Hiroshi Fujiwara, Takeo Fujii, Tomoaki Ohtsuki

IEICE Trans. Commun., 2021

Analysis of Lower Bounds for Online Bin Packing with Two Item Sizes.

Hiroshi Fujiwara, Ken Endo, Hiroaki Yamamoto

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021

Algorithm NextFit for the Bin Packing ProblemThis work was supported by JSPS KAKENHI Grant Numbers JP20K11689, JP20K11676, JP16K00033, JP17K00013, JP20K11808, and JP17K00183.

Hiroshi Fujiwara, Ryota Adachi, Hiroaki Yamamoto

Formaliz. Math., 2021

Development of three-dimensional integral-type reconstruction formula for magnetic resonance elastography.

Tasuku Takeda, Hiroshi Fujiwara, Mikio Suga

Int. J. Comput. Assist. Radiol. Surg., 2021

Multiple-Precision Arithmetic of Biot-Savart Integrals for Reconnections of Vortex Filaments.

Yu-Hsun Lee, Hiroshi Fujiwara

Proceedings of the Computational Science and Its Applications - ICCSA 2021, 2021

Phonetroller: Visual Representations of Fingers for Precise Touch Input with Mobile Phones in VR.

Fabrice Matulic, Aditya Ganeshan, Hiroshi Fujiwara, Daniel Vogel

Proceedings of the CHI '21: CHI Conference on Human Factors in Computing Systems, 2021

2020

Numerical Reconstruction of Radiative Sources in an Absorbing and Nondiffusing Scattering Medium in Two Dimensions.

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

SIAM J. Imaging Sci., 2020

Erratum for "Approximate Steady State Models for Magnetic Resonance Elastography".

Yu Jiang, Hiroshi Fujiwara, Gen Nakamura

SIAM J. Appl. Math., 2020

Bounds for the Multislope Ski-Rental Problem.

Hiroshi Fujiwara, Kei Shibusawa, Kouki Yamamoto, Hiroaki Yamamoto

IEICE Trans. Inf. Syst., 2020

Dynamic Programming for the Subset Sum Problem.

Hiroshi Fujiwara, Hokuto Watari, Hiroaki Yamamoto

Formaliz. Math., 2020

Online Removable Knapsack Problems for Integer-Sized Items.

Kanaho Hanji, Hiroshi Fujiwara, Hiroaki Yamamoto

Proceedings of the Theory and Applications of Models of Computation, 2020

Construction of Selection-Scheduling of Accessing Node for High Efficiency Information Exchanging in Overloaded Wireless MIMO Switching.

Arata Takahashi, Osamu Takyu, Hiroshi Fujiwara

Proceedings of the International Conference on Information and Communication Technology Convergence, 2020

2019

Numerical reconstruction of radiative sources in an absorbing and non-diffusing scattering medium in two dimensions.

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

CoRR, 2019

Space-Efficient and Secure Substring Searchable Symmetric Encryption Using an Improved DAWG.

Hiroaki Yamamoto, Yoshihiro Wachi, Hiroshi Fujiwara

Proceedings of the Provable Security, 2019

2017

Practical and Secure Searchable Symmetric Encryption with a Small Index.

Ryuji Miyoshi, Hiroaki Yamamoto, Hiroshi Fujiwara, Takashi Miyazaki

Proceedings of the Secure IT Systems, 2017

2016

Bin Packing with Cardinality Constraints.

Hiroshi Fujiwara, Koji M. Kobayashi

Encyclopedia of Algorithms, 2016

On the best possible competitive ratio for the multislope ski-rental problem.

Hiroshi Fujiwara, Takuma Kitano, Toshihiro Fujito

J. Comb. Optim., 2016

Competitive Analysis for the 3-Slope Ski-Rental Problem with the Discount Rate.

Hiroshi Fujiwara, Shunsuke Satou, Toshihiro Fujito

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

Online Weight Balancing on the Unit Circle.

Hiroshi Fujiwara, Takahiro Seki, Toshihiro Fujito

IEICE Trans. Inf. Syst., 2016

Competitive Analysis for the Flat-Rate Problem.

Hiroshi Fujiwara, Atsushi Matsuda, Toshihiro Fujito

IEICE Trans. Inf. Syst., 2016

2015

Improved lower bounds for the online bin packing problem with cardinality constraints.

Hiroshi Fujiwara, Koji M. Kobayashi

J. Comb. Optim., 2015

The Huffman Tree Problem with Unit Step Functions.

Hiroshi Fujiwara, Takuya Nakamura, Toshihiro Fujito

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015

Immune reconstitution inflammatory syndrome due to Mycobacterium avium complex successfully followed up using ¹⁸ F-fluorodeoxyglucose positron emission tomography-computed tomography in a patient with human immunodeficiency virus infection: A case report.

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

BMC Medical Imaging, 2015

2014

Analysis of Lower Bounds for the Multislope Ski-Rental Problem.

Hiroshi Fujiwara, Yasuhiro Konno, Toshihiro Fujito

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

On the Huffman and Alphabetic Tree Problem with General Cost Functions.

Hiroshi Fujiwara, Tobias Jacobs

Algorithmica, 2014

2013

Collision Probability in an In-Line Equipment Model under Erlang Distribution.

Eishi Chiba, Hiroshi Fujiwara, Yoshiyuki Sekiguchi, Toshihide Ibaraki

IEICE Trans. Inf. Syst., 2013

2012

An improved analysis of SRPT scheduling algorithm on the basis of functional optimization.

Hiroshi Fujiwara, Yoshiyuki Sekiguchi

Inf. Process. Lett., 2012

2011

Approximate Steady State Models for Magnetic Resonance Elastography.

Yu Jiang, Hiroshi Fujiwara, Gen Nakamura

SIAM J. Appl. Math., 2011

Average-case competitive analyses for one-way trading.

Hiroshi Fujiwara, Kazuo Iwama, Yoshiyuki Sekiguchi

J. Comb. Optim., 2011

On the Best Possible Competitive Ratio for Multislope Ski Rental.

Hiroshi Fujiwara, Takuma Kitano, Toshihiro Fujito

Proceedings of the Algorithms and Computation - 22nd International Symposium, 2011

2008

Online chasing problems for regular polygons.

Hiroshi Fujiwara, Kazuo Iwama, Kouki Yonezawa

Inf. Process. Lett., 2008

2007

Energy-efficient algorithms for flow time minimization.

Susanne Albers, Hiroshi Fujiwara

ACM Trans. Algorithms, 2007

Online Chasing Problems for Regular n-Gons.

Hiroshi Fujiwara, Kazuo Iwama, Kouki Yonezawa

Proceedings of the 2007 IEEE International Conference on Research, 2007

Collision Probability in an Automated Production Line under Erlang Distribution.

Eishi Chiba, Hiroshi Fujiwara, Yoshiyuki Sekiguchi, Toshihide Ibaraki

Proceedings of the 2007 IEEE International Conference on Research, 2007

2005

Average-Case Competitive Analyses for Ski-Rental Problems.

Hiroshi Fujiwara, Kazuo Iwama

Algorithmica, 2005

1992

An all-ASIC implementation of a low bit-rate video codec.

Hiroshi Fujiwara, Ming L. Liou, Ming-Ting Sun, Kun-Min Yang, Masanori Maruyama, Kazuyoshi Shomura, Koichi Ohyama

IEEE Trans. Circuits Syst. Video Technol., 1992

1990

VLSI architecture and implementation of a multifunction, forward/inverse discrete cosine transform processor.

Masanori Maruyama, H. Uwabu, I. Iwasaki, Hiroshi Fujiwara, Toshifumi Sakaguchi, Ming-Ting Sun, Ming Lei Liou

Proceedings of the Visual Communications and Image Processing '90: Fifth in a Series, 1990