Fractional knapsack problems. - Hiroaki Ishii; Toshihide Ibaraki; Hisashi Mine (Math. Program., 1977)

Stochastic spanning tree problem. - Hiroaki Ishii; Shogo Shiode; Toshio Nishida; Yoshikazu Namasuya (Discret. Appl. Math., 1981)

Optimal sharing. - Tetsuo Ichimori; Hiroaki Ishii; Toshio Nishida (Math. Program., 1982)

Two routing problems with the limitation of fuel. - Tetsuo Ichimori; Hiroaki Ishii; Toshio Nishida (Discret. Appl. Math., 1983)

Stochastic bottleneck spanning tree problem. - Hiroaki Ishii; Toshio Nishida (Networks, 1983)

The mixed shop scheduling problem. - Teruo Masuda; Hiroaki Ishii; Toshio Nishida (Discret. Appl. Math., 1985)

A Generalized Uniform Processor System. - Hiroaki Ishii; Charles U. Martel; Teruo Masuda; Toshio Nishida (Oper. Res., 1985)

Two machine mixed shop scheduling problem with controllable machine speeds. - Hiroaki Ishii; Teruo Masuda; Toshio Nishida (Discret. Appl. Math., 1987)

A single facility stochastic location problem undera-distance. - Shogo Shiode; Hiroaki Ishii (Ann. Oper. Res., 1991)

Two Machine open Shop Scheduling Problem with Bi-criteria. - Teruo Masuda; Hiroaki Ishii (Discret. Appl. Math., 1994)

Chance constrained bottleneck spanning tree problem. - Hiroaki Ishii; Shogo Shiode (Ann. Oper. Res., 1995)

An M/M/c queue with interdependent arrival and service processes. - Kanji Yoneyama; T. Miyamura; Hiroaki Ishii (PMCCN, 1997)

The edge detection from images corrupted by mixed noise using fuzzy rules. - Hiroaki Ishii; Akira Taguchi; Mototaka Sone (EUSIPCO, 1998)

Spanning tree problem on a fuzzy network. - Fumihiko Shimada; Hiroaki Ishii; Takeshi Itoh (KES (1), 1998)

A stochastic inventory problem with fuzzy shortage cost. - Hiroaki Ishii; Tsutomu Konno (Eur. J. Oper. Res., 1998)

Data-dependent median filtering with multi-windows for restoration of images corrupted by high probability impulsive noise. - Hiroaki Ishii; Akira Taguchi; Mituhiro Okano; Mototaka Sone (NSIP, 1999)

Some inventory problems with fuzzy shortage cost. - Hideki Katagiri; Hiroaki Ishii (Fuzzy Sets Syst., 2000)

An open shop scheduling problem with fuzzy allowable time and fuzzy resource constraint. - Tsutomu Konno; Hiroaki Ishii (Fuzzy Sets Syst., 2000)

Fuzzy Crop Planning Problem Based on Possibility Measure. - Takeshi Itoh; Hiroaki Ishii (FUZZ-IEEE, 2001)

L-fuzzy optimization problems by parametric representation. - Seiji Saito; Hiroaki Ishii (SMC, 2001)

Conjoint analysis based on rough approximations by dominance relations using interval regression analysis. - Kazutomi Sugihara; Hiroaki Ishii; Hideo Tanaka (FUZZ-IEEE, 2002)

Fuzzy inventory problems for perishable commodities. - Hideki Katagiri; Hiroaki Ishii (Eur. J. Oper. Res., 2002)

A method for discriminating efficient candidates with ranked voting data. - Tsuneshi Obata; Hiroaki Ishii (Eur. J. Oper. Res., 2003)

Scheduling with fuzzy delays and fuzzy precedences. - Kanesan Muthusamy; Shao Chin Sung; Milan Vlach; Hiroaki Ishii (Fuzzy Sets Syst., 2003)

Routing and flow control by genetic algorithm for a flow model. - Koji Okuhara; Toshijiro Tanaka; Hiroaki Ishii (Syst. Comput. Jpn., 2003)

Seven Tools of Operation Standardization for Mass Production of a New Product. - Kosei Sugitani; Hiroshi Morita; Hiroaki Ishii (ICEIMT/DIISM, 2004)

Fuzzy random bottleneck spanning tree problems using possibility and necessity measures. - Hideki Katagiri; Masatoshi Sakawa; Hiroaki Ishii (Eur. J. Oper. Res., 2004)

Interval priorities in AHP by interval regression analysis. - Kazutomi Sugihara; Hiroaki Ishii; Hideo Tanaka (Eur. J. Oper. Res., 2004)

On conjoint analysis by rough approximations based on dominance relations. - Kazutomi Sugihara; Hiroaki Ishii; Hideo Tanaka (Int. J. Intell. Syst., 2004)

Single Machine Batch Scheduling Problem with Resource Dependent Setup and Processing Time in the Presence of Fuzzy Due Date. - Kanthen K. Harikrishnan; Hiroaki Ishii (Fuzzy Optim. Decis. Mak., 2005)

One Machine Scheduling Problem with Fuzzy Random Due-Dates. - Takeshi Itoh; Hiroaki Ishii (Fuzzy Optim. Decis. Mak., 2005)

A Crop Planning Problem with Fuzzy Random Profit Coefficients. - Tasuku Toyonaga; Takeshi Itoh; Hiroaki Ishii (Fuzzy Optim. Decis. Mak., 2005)

Support of decision making by data mining using neural system. - Koji Okuhara; Hiroaki Ishii; Makoto Uchida (Syst. Comput. Jpn., 2005)

Performance evaluation of product form cellular mobile communications networks. - Kanji Yoneyama; Tatsuya Matsukawa; Hiroaki Ishii (Comput. Math. Appl., 2006)

On the Property of Single Input Rule Modules Connected Type Fuzzy Reasoning Method. - Hirosato Seki; Hiroaki Ishii; Masaharu Mizumoto (FUZZ-IEEE, 2007)

Portfolio Selection Problem Based on Possibility Theory Using the Scenario Model with Ambiguous Future Returns. - Takashi Hasuike; Hiroaki Ishii (IFSA (2), 2007)

On the monotonicity of SIRMs connected type fuzzy reasoning method and SIC reasoning method. - Hirosato Seki; Hiroaki Ishii; Masaharu Mizumoto (SMC, 2007)

Fuzzy facility location problem with preference of candidate sites. - Hiroaki Ishii; Yung Lung Lee; Kuang Yih Yeh (Fuzzy Sets Syst., 2007)

On the Monotonicity of Single Input Type Fuzzy Reasoning Methods. - Hirosato Seki; Hiroaki Ishii; Masaharu Mizumoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

Conceptual menu navigation system to prevent lifestyle-related disease. - Tomoko Kashima; Hiroaki Ishii (CASE, 2008)

Business process analysis to obtain empirical lot sizing rule in printing process. - Shimpei Matsumoto; Nobuyuki Ueno; Koji Okuhara; Hiroaki Ishii (CASE, 2008)

Probability maximization model of 0-1 knapsack problem with random fuzzy variables. - Takashi Hasuike; Hideki Katagiri; Hiroaki Ishii (FUZZ-IEEE, 2008)

On the monotonicity of functional type SIRMs connected fuzzy reasoning method and T-S reasoning method. - Hirosato Seki; Hiroaki Ishii (FUZZ-IEEE, 2008)

Database-Driven Disease Prevention by Daily Menu Management and Physical Condition. - Eri Domoto; Koji Okuhara; Hiroaki Ishii (ISDA (3), 2008)

Facility Location Problem under Fuzzy Construction Cost and Preference of Candidate Sites. - Hiroaki Ishii; Yung Lung Lee (ISDA (2), 2008)

Earthquake Shelter Location Evaluation Considering Road Structure. - Yung Lung Lee; Hiroaki Ishii; Cheng-An Tai (ISDA (1), 2008)

The Innovation of Manufacturing Premise Based on Knowledge Obtained by Quality Accident Report. - Shujiro Murayama; Junko Shibata; Koji Okuhara; Hiroaki Ishii (ISDA (1), 2008)

Data Mining of Geographical Accessibility for Tourism in Regional Area. - Koji Okuhara; Kuang Yih Yeh; Hao-Ching Hsia; Hiroaki Ishii (ISDA (2), 2008)

The Self-Organizing Map Applying the "Survival of the Fittest Type" Learning Algorithm. - Junko Shibata; Koji Okuhara; Shogo Shiode; Hiroaki Ishii (ISDA (3), 2008)

A random fuzzy programming models based on possibilistic programming. - Hideki Katagiri; Takashi Hasuike; Hiroaki Ishii (SMC, 2008)

SIRMs connected fuzzy inference method using kernel method. - Hirosato Seki; Fuhito Mizuguchi; Satoshi Watanabe; Hiroaki Ishii; Masaharu Mizumoto (SMC, 2008)

A Well-Balanced Menu Planning with Fuzzy Weight. - Tomoko Kashima; Shimpei Matsumoto; Hiroaki Ishii (Eng. Lett., 2008)

On the Generalization of Single Input Rule Modules Connected Type Fuzzy Reasoning Method. - Hirosato Seki; Hiroaki Ishii; Masaharu Mizumoto (IEEE Trans. Fuzzy Syst., 2008)

A Type-2 Fuzzy Portfolio Selection Problem Considering Possibility Measure and Crisp Possibilistic Mean Value. - Takashi Hasuike; Hiroaki Ishii (IFSA/EUSFLAT Conf., 2009)

A portfolio selection problem with type-2 fuzzy return based on possibility measure and interval programming. - Takashi Hasuike; Hiroaki Ishii (FUZZ-IEEE, 2009)

Comparison of neuro-fuzzy based techniques in nasopharyngeal carcinoma recurrence prediction. - Orrawan Kumdee; Hirosato Seki; Hiroaki Ishii; Thongchai Bhongmakapat; Panrasee Ritthipravat (FUZZ-IEEE, 2009)

Realization of XOR by SIRMs Connected Fuzzy Inference Method. - Hirosato Seki; Satoshi Watanabe; Hiroaki Ishii; Masaharu Mizumoto (IEA/AIE, 2009)

Stochastic Facility Construction Problem with Preference of Candidate Sites. - Hiroaki Ishii; Yung Lung Lee; Kuang Yih Yeh (MDAI, 2009)

Multiobjective Random Fuzzy Portfolio Selection Problems based on CAPM. - Takashi Hasuike; Hideki Katagiri; Hiroaki Ishii (SMC, 2009)

Product mix problems considering several probabilistic conditions and flexibility of constraints. - Takashi Hasuike; Hiroaki Ishii (Comput. Ind. Eng., 2009)

Probability maximization models for portfolio selection under ambiguity. - Takashi Hasuike; Hiroaki Ishii (Central Eur. J. Oper. Res., 2009)

Portfolio selection problems with random fuzzy variable returns. - Takashi Hasuike; Hideki Katagiri; Hiroaki Ishii (Fuzzy Sets Syst., 2009)

On the Infimum and Supremum of Fuzzy Inference by Single Input Type Fuzzy Inference. - Hirosato Seki; Hiroaki Ishii (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

An Extended Method of SIRMs Connected Fuzzy Inference Method Using Kernel Method. - Hirosato Seki; Fuhito Mizuguchi; Satoshi Watanabe; Hiroaki Ishii; Masaharu Mizumoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Multiobjective Random Fuzzy Linear Programming Problems Based on the Possibility Maximization Model. - Takashi Hasuike; Hideki Katagiri; Hiroaki Ishii (J. Adv. Comput. Intell. Intell. Informatics, 2009)

Single-Period Inventory Models with Fuzzy Shortage Costs Dependent on Random Demands. - Takashi Hasuike; Hiroaki Ishii (IUM, 2010)

Portfolio selection problems with normal mixture distributions including fuzziness. - Takashi Hasuike; Hiroaki Ishii (Int. J. Knowl. Eng. Soft Data Paradigms, 2010)

On the Monotonicity of Fuzzy-Inference Methods Related to T-S Inference Method. - Hirosato Seki; Hiroaki Ishii; Masaharu Mizumoto (IEEE Trans. Fuzzy Syst., 2010)

Stochastic Bottleneck Spanning Tree Problem on a Fuzzy Network. - Yue Ge; Hiroaki Ishii (Fuzzy Optimization, 2010)

Mathematical Approaches for Fuzzy Portfolio Selection Problems with Normal Mixture Distributions. - Takashi Hasuike; Hiroaki Ishii (Fuzzy Optimization, 2010)

Audio Watermarking Using Wavelet Transform and Genetic Algorithm for Realizing High Tolerance to MP3 Compression. - Shinichi Murata; Yasunari Yoshitomi; Hiroaki Ishii (J. Information Security, 2011)

Stochastic bottleneck transportation problem with flexible supply and demand quantity. - Yue Ge; Hiroaki Ishii (Kybernetika, 2011)

Preface 'Soft computing for management systems'. - Hiroaki Ishii; Shogo Shiode; Hark Hwang; Gwo-Hshiung Tzeng; Hirosato Seki (Comput. Ind. Eng., 2012)

Single machine batch scheduling problem with fuzzy batch size. - Xuesong Li; Hiroaki Ishii; Teruo Masuda (Comput. Ind. Eng., 2012)

A generalized bi-criteria fuzzy integer flow sharing problem. - Yue Ge; Minghao Chen 002; Hiroaki Ishii (Int. J. Approx. Reason., 2012)

Chance constrained bottleneck transportation problem with preference of routes. - Yue Ge; Minghao Chen; Hiroaki Ishii (Kybernetika, 2012)

Batch scheduling problem with due-date and fuzzy precedence relation. - Xuesong Li; Hiroaki Ishii; Minghao Chen (Kybernetika, 2012)

Designing of Face Image Processing Technique for Sorting Out Japanese Raccoons Form Raccoons. - Tadasuke Furuya; Yayoi Kaneko; Hiroaki Ishii; Takafumi Saito (HCI (29), 2013)

Fuzzy Multiple Criteria Decision Making Approach to Assess the Project Quality Management in Project. - Yao-Feng Chang; Hiroaki Ishii (KES, 2013)

Mathematical Ranking Method for Emergency Facility Location Problem with Block-wisely Different Accident Occurrence Probabilities. - Hiroaki Ishii; Yung Lung Lee (KES, 2013)

Optimization of Constrained SIRMs Connected Type Fuzzy Inference Model Using Two-Phase Simplex Method. - Takeshi Nagata; Hirosato Seki; Hiroaki Ishii (J. Adv. Comput. Intell. Intell. Informatics, 2018)