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Keiki Takadama

Publication record assembled from the DBLP archive of ranked conferences.

Papers indexed

123

Venues

16

Active years

1998–2026

Best venue rank

B

Where they publish

Papers

123 indexed papers, newest first.

YearVenueTitleAuthors
2026GECCOWhen Should Helper Functions Based on Fourier Transform be Terminated in Evolutionary Multi-Objective Optimization via Multi-objectivization?Hiroto Imajo, Hitoshi Iba, Keiki Takadama
2026GECCOSimultaneous Approximation of Constraint-Specific Pareto Fronts by Constraint-Decomposed Push and Pull Search.Ryo Takamiya, Minami Miyakawa, Keiki Takadama, Hiroyuki Sato
2026HCIParkinson's Disease Detection Based on BCG Respiration Stability.Ryuki Ishizawa, Naoki Takao, Makoto Shiraishi, Keiki Takadama
2026ICAARTMeta Deep Reinforcement Learning Based on Supervised Learning of Correspondence between Model Parameters and Reward Functions as Externally Conditioned Queries.Takumi Kuitani, Hiroyuki Sato, Keiki Takadama
2025CECLimitation of Adapting to Continuously Changing Optimization Problem and Its Solution in Swarm Optimization.Shoei Fujita, Ryuki Ishizawa, Hiroyuki Sato, Keiki Takadama
2025CECControlling an Exploration in Unbounded Search Space by Novelty-Based Multi-Objectivization.Ryuki Ishizawa, Hiroyuki Sato, Keiki Takadama
2025CECMulti-objective optimization of flight schedules considering Constraint Tolerance based on Local Search and Archives.Tomoki Ishizuka, Hiroyuki Sato, Keiki Takadama
2025CECMultitask Knapsack Problems with Scalable Objective and Constraint Similarities: Behavioral Analysis of Evolutionary Multi-Factorial Algorithms.Shio Kawakami, Keiki Takadama, Hiroyuki Sato
2025GECCOAdaptive Multi-Population Dynamic Optimization for Multimodal Dynamic Function Optimization.Shoei Fujita, Ryuki Ishizawa, Hiroyuki Sato, Keiki Takadama
2025GECCOEvolutionary Co-Optimization of Rule Shape and Fuzziness in Rule-Based Machine Learning.Hiroki Shiraishi, Yohei Hayamizu, Tomonori Hashiyama, Keiki Takadama, Hisao Ishibuchi, Masaya Nakata
2025HCICircadian Rhythm Estimation Based on Knowledge Distillation Without Daytime Heartrate Data.Shunnan Man, Keiki Takadama
2025ICAARTWhat Kind of Information Is Needed? Multi-Agent Reinforcement Learning that Selectively Shares Information from Other Agents.Riku Sakagami, Keiki Takadama
2025ICAARTAction-Based Intrinsic Reward Design for Cooperative Behavior Acquisition in Multi-Agent Reinforcement Learning.Iori Takeuchi, Keiki Takadama
2024CECFrom Multipoint Search to Multiarea Search: Novelty-Based Multi-Objectivization for Unbounded Search Space Optimization.Ryuki Ishizawa, Hiroyuki Sato, Keiki Takadama
2024CECEvolutionary Constrained Multi-Factorial Optimization Based on Task Similarity.Shio Kawakami, Keiki Takadama, Hiroyuki Sato
2024CECDesign of Generalized and Specialized Helper Objectives for Multi-objective Continuous Optimization Problems.Keigo Mochizuki, Tomoki Ishizuka, Naoya Yatsu, Hiroyuki Sato, Keiki Takadama
2024CECPareto Front Estimation Model Optimization for Aggregative Solution Set Representation.Naru Okumura, Keiki Takadama, Hiroyuki Sato
2024CECShould Multi-objective Evolutionary Algorithms Use Always Best Non-dominated Solutions as Parents?Kazuma Sato, Naru Okumura, Keiki Takadama, Hiroyuki Sato
2024CECPush and Pull Search with Directed Mating for Constrained Multi-objective Optimization.Ryo Takamiya, Minami Miyakawa, Keiki Takadama, Hiroyuki Sato
2024CECDesigning Helper Objectives in Multi-Objectivization.Shoichiro Tanaka, Arnaud Liefooghe, Keiki Takadama, Hiroyuki Sato
2024CECPrototype Generation with the sUpervised Classifier System on kNN Matching.Naoya Yatsu, Hiroki Shiraishi, Hiroyuki Sato, Keiki Takadama
2024GECCOApproximating Pareto Local Optimal Solution Networks.Shoichiro Tanaka, Gabriela Ochoa, Arnaud Liefooghe, Keiki Takadama, Hiroyuki Sato
2024GECCOGenerating High-Dimensional Prototypes with a Classifier System by Evolving in Latent Space.Naoya Yatsu, Hiroki Shiraishi, Hiroyuki Sato, Keiki Takadama
2024ICAARTMulti-Agent Archive-Based Inverse Reinforcement Learning by Improving Suboptimal Experts.Shunsuke Ueki, Keiki Takadama
2024IJCNNMulti-layer Cortical Learning Algorithm for Forecasting Time-series Data with Smoothly Changing Variation Patterns.Kazushi Fujino, Keiki Takadama, Hiroyuki Sato
2023CECToward Unbounded Search Space Exploration by Particle Swarm Optimization in Multi-Modal Optimization Problem.Ryuki Ishizawa, Tomoya Kuga, Yusuke Maekawa, Hiroyuki Sato, Keiki Takadama
2023EMOPareto Front Upconvert by Iterative Estimation Modeling and Solution Sampling.Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2023GECCOExploring High-dimensional Rules Indirectly via Latent Space Through a Dimensionality Reduction for XCS.Naoya Yatsu, Hiroki Shiraishi, Hiroyuki Sato, Keiki Takadama
2023HCIPersonalized Sleep Stage Estimation Based on Time Series Probability of Estimation for Each Label with Wearable 3-Axis Accelerometer.Iko Nakari, Masahiro Nakashima, Keiki Takadama
2022CECBeta Distribution based XCS Classifier System.Hiroki Shiraishi, Yohei Havamizu, Hiroyuki Sato, Keiki Takadama
2022CECSupervised Multi-Objective Optimization Algorithm Using Estimation.Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2022CECImpacts of Single-objective Landscapes on Multi-objective Optimization.Shoichiro Tanaka, Keiki Takadama, Hiroyuki Sato
2022CECXCSR with VAE using Gaussian Distribution Matching: From Point to Area Matching in Latent Space for Less-overlapped Rule Generation in Observation Space.Naoya Yatsu, Hiroki Shiraishi, Hiroyuki Sato, Keiki Takadama
2022GECCOAbsumption based on overgenerality and condition-clustering based specialization for XCS with continuous-valued inputs.Hiroki Shiraishi, Yohei Hayamizu, Hiroyuki Sato, Keiki Takadama
2022GECCOCan the same rule representation change its matching area?: enhancing representation in XCS for continuous space by probability distribution in multiple dimension.Hiroki Shiraishi, Yohei Hayamizu, Hiroyuki Sato, Keiki Takadama
2022HCIDesign of Human-Agent-Group Interaction for Correct Opinion Sharing on Social Media.Fumito Uwano, Daiki Yamane, Keiki Takadama
2021CECIncreasing Accuracy and Interpretability of High-Dimensional Rules for Learning Classifier System.Hiroki Shiraishi, Masakazu Tadokoro, Yohei Hayamizu, Yukiko Fukumoto, Hiroyuki Sato, Keiki Takadama
2021CECXCS with Weight-based Matching in VAE Latent Space and Additional Learning of High-Dimensional Data.Masakazu Tadokoro, Hiroyuki Sato, Keiki Takadama
2021CECWeight Vector Arrangement Using Virtual Objective Vectors in Decomposition-based MOEA.Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2021EMOPareto Front Estimation Using Unit Hyperplane.Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2021GECCOMisclassification detection based on conditional VAE for rule evolution in learning classifier system.Hiroki Shiraishi, Masakazu Tadokoro, Yohei Hayamizu, Yukiko Fukumoto, Hiroyuki Sato, Keiki Takadama
2021HCIAnalyzing Early Stage of Forming a Consensus from Viewpoint of Majority/Minority Decision in Online-Barnga.Yoshimiki Maekawa, Tomohiro Yamaguchi, Keiki Takadama
2020CECLocal Covering: Adaptive Rule Generation Method Using Existing Rules for XCS.Masakazu Tadokoro, Satoshi Hasegawa, Takato Tatsumi, Hiroyuki Sato, Keiki Takadama
2020CECNon-dominated Solution Sampling Using Environmental Selection in EMO algorithms.Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2020GECCOPreliminary study of adaptive grid-based decomposition on many-objective evolutionary optimization.Kensuke Kano, Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2020GECCOIncremental lattice design of weight vector set.Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2020GECCOVisual mapping of multi-objective optimization problems and evolutionary algorithms.Kohei Yamamoto, Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2020HCIHow to Emote for Consensus Building in Virtual Communication.Yoshimiki Maekawa, Fumito Uwano, Eiki Kitajima, Keiki Takadama
2020HISDistance Minimization Problems for Multi-factorial Evolutionary Optimization Benchmarking.Shio Kawakami, Tomoaki Takagi, Keiki Takadama, Hiroyuki Sato
2019CECNiche Radius Adaptation in Bat Algorithm for Locating Multiple Optima in Multimodal Functions.Takuya Iwase, Ryo Takano, Fumito Uwano, Hiroyuki Sato, Keiki Takadama
2019CECKnowledge Extraction from XCSR Based on Dimensionality Reduction and Deep Generative Models.Masakazu Tadokoro, Satoshi Hasegawa, Takato Tatsumi, Hiroyuki Sato, Keiki Takadama
2019CECComplex-Valued-based Learning Classifier System for POMDP Environments.Keiki Takadama, Daichi Yamazaki, Masaya Nakata, Hiroyuki Sato
2019CECComparison of Statistical Table- and Non-Statistical Table-based XCS in Noisy Environments.Takato Tatsumi, Keiki Takadama
2019EMOEvolving Generalized Solutions for Robust Multi-objective Optimization: Transportation Analysis in Disaster.Keiki Takadama, Keiji Sato, Hiroyuki Sato
2019GECCOXCS-CR for handling input, output, and reward noise.Takato Tatsumi, Keiki Takadama
2019HCIModel-Based Multi-objective Reinforcement Learning with Unknown Weights.Tomohiro Yamaguchi, Shota Nagahama, Yoshihiro Ichikawa, Keiki Takadama
2019HCIHow to Design Adaptable Agents to Obtain a Consensus with Omoiyari.Yoshimiki Maekawa, Fumito Uwano, Eiki Kitajima, Keiki Takadama
2018GECCOXCSR based on compressed input by deep neural network for high dimensional data.Kazuma Matsumoto, Ryo Takano, Takato Tatsumi, Hiroyuki Sato, Tim Kovacs, Keiki Takadama
2018GECCOArtificial bee colony algorithm based on adaptive local information sharing: approach for several dynamic changes.Ryo Takano, Hiroyuki Sato, Keiki Takadama
2018GECCOXCS-CR: determining accuracy of classifier by its collective reward in action set toward environment with action noise.Takato Tatsumi, Tim Kovacs, Keiki Takadama
2018GECCOMultiple swarm intelligence methods based on multiple population with sharing best solution for drastic environmental change.Yuta Umenai, Fumito Uwano, Hiroyuki Sato, Keiki Takadama
2018GECCOGeneralizing rules by random forest-based learning classifier systems for high-dimensional data mining.Fumito Uwano, Koji Dobashi, Keiki Takadama, Tim Kovacs
2018GECCOClassifier generalization for comprehensive classifiers subsumption in XCS.Caili Zhang, Takato Tatsumi, Hiyoyuki Sato, Tim Kovacs, Keiki Takadama
2018HCICorrecting Wrongly Determined Opinions of Agents in Opinion Sharing Model.Eiki Kitajima, Caili Zhang, Haruyuki Ishii, Fumito Uwano, Keiki Takadama
2018HCIGenerating Learning Environments Derived from Found Solutions by Adding Sub-goals Toward the Creative Learning Support.Takato Okudo, Tomohiro Yamaguchi, Keiki Takadama
2018PRIMAStrategy for Learning Cooperative Behavior with Local Information for Multi-agent Systems.Fumito Uwano, Keiki Takadama
2017CECPerformance comparison of parallel asynchronous multi-objective evolutionary algorithm with different asynchrony.Tomohiro Harada, Keiki Takadama
2017CECApplying variance-based Learning Classifier System without Convergence of Reward Estimation into various Reward distribution.Takato Tatsumi, Hiroyuki Sato, Tim Kovacs, Keiki Takadama
2017GECCOA study of self-adaptive semi-asynchronous evolutionary algorithm on multi-objective optimization problem.Tomohiro Harada, Keiki Takadama
2017GECCOTheoretical XCS parameter settings of learning accurate classifiers.Masaya Nakata, Will N. Browne, Tomoki Hamagami, Keiki Takadama
2017GECCOAn improved MOEA/D utilizing variation angles for multi-objective optimization.Hiroyuki Sato, Minami Miyakawa, Keiki Takadama
2017GECCOAutomatic adjustment of selection pressure based on range of reward in learning classifier system.Takato Tatsumi, Hiroyuki Sato, Keiki Takadama
2017HCITowards Adaptive Aircraft Landing Order with Aircraft Routes Partially Fixed by Air Traffic Controllers as Human Intervention.Akinori Murata, Hiroyuki Sato, Keiki Takadama
2017HCIDesigning the Learning Goal Space for Human Toward Acquiring a Creative Learning Skill.Takato Okudo, Keiki Takadama, Tomohiro Yamaguchi
2016CECXCS-DH: Minimal default hierarchies in XCS.Tim Kovacs, Simon Rawles, Larry Bull, Masaya Nakata, Keiki Takadama
2016CECLearning classifier system with deep autoencoder.Kazuma Matsumoto, Yusuke Tajima, Rei Saito, Masaya Nakata, Hiroyuki Sato, Tim Kovacs, Keiki Takadama
2016CECEnhanced decomposition-based many-objective optimization using supplemental weight vectors.Hiroyuki Sato, Satoshi Nakagawa, Minami Miyakawa, Keiki Takadama
2016CECA modified cuckoo search algorithm for dynamic optimization problems.Yuta Umenai, Fumito Uwano, Yusuke Tajima, Masaya Nakata, Hiroyuki Sato, Keiki Takadama
2016GECCOVariance-based Learning Classifier System without Convergence of Reward Estimation.Takato Tatsumi, Takahiro Komine, Masaya Nakata, Hiroyuki Sato, Tim Kovacs, Keiki Takadama
2016HCIPreventing Incorrect Opinion Sharing with Weighted Relationship Among Agents.Rei Saito, Masaya Nakata, Hiroyuki Sato, Tim Kovacs, Keiki Takadama
2016HCIPersonalized Real-Time Sleep Stage from Past Sleep Data to Today's Sleep Estimation.Yusuke Tajima, Tomohiro Harada, Hiroyuki Sato, Keiki Takadama
2015CECDirected mating using inverted PBI function for constrained multi-objective optimization.Minami Miyakawa, Keiki Takadama, Hiroyuki Sato
2015CECHow should Learning Classifier Systems cover a state-action space?Masaya Nakata, Pier Luca Lanzi, Tim Kovacs, Will Neil Browne, Keiki Takadama
2015CECDetecting shoplifting from customer behavior data by extended XCS-SL: Towards feature extraction on class-imbalanced sequence data.Minato Sato, Kotaro Usui, Masaya Nakata, Keiki Takadama
2015CECExtracting both generalized and specialized knowledge by XCS using Attribute Tracking and Feedback.Keiki Takadama, Masaya Nakata
2015CECShip route evolutionary optimization of multiple ship companies for distributed coordination of resources.Keiki Takadama, Hiroyuki Sato, Daisuke Watanabe, Eriko Azuma, Takahiro Majima, Mitujiro Katuhara
2015CECToward robustness against environmental change speed by artificial bee colony algorithm based on local information sharing.Ryo Takano, Hiroyuki Sato, Tomohiro Harada, Keiki Takadama
2015CECHandling different level of unstable reward environment through an estimation of reward distribution in XCS.Takato Tatsumi, Takahiro Komine, Hiroyuki Sato, Keiki Takadama
2015GECCOControl of Crossed Genes Ratio for Directed Mating in Evolutionary Constrained Multi-Objective Optimization.Minami Miyakawa, Keiki Takadama, Hiroyuki Sato
2015GECCOA Potential of Evolutionary Rule-based Machine Learning for Real World Applications.Keiki Takadama
2015IECONAnalyzing human's continuous learning ability with the reflection cost.Tomohiro Yamaguchi, Yuki Tamai, Keiki Takadama
2014EUROGPAsynchronous Evolution by Reference-Based Evaluation: Tertiary Parent Selection and Its Archive.Tomohiro Harada, Keiki Takadama
2014GECCOAsynchronously evolving solutions with excessively different evaluation time by reference-based evaluation.Tomohiro Harada, Keiki Takadama
2014GECCOControlling selection area of useful infeasible solutions and their archive for directed mating in evolutionary constrained multiobjective optimization.Minami Miyakawa, Keiki Takadama, Hiroyuki Sato
2014GECCOA modified XCS classifier system for sequence labeling.Masaya Nakata, Tim Kovacs, Keiki Takadama
2014GECCOComplete action map or best action map in accuracy-based reinforcement learning classifier systems.Masaya Nakata, Pier Luca Lanzi, Tim Kovacs, Keiki Takadama
2014HCIFavor Information Presentation and Its Effect for Collective-Adaptive Situation.Asami Mori, Tomohiro Harada, Yoshihiro Ichikawa, Keiki Takadama
2014HCIVisualizing Mental Learning Processes with Invisible Mazes for Continuous Learning.Tomohiro Yamaguchi, Kouki Takemori, Keiki Takadama
2014PPSNMessy Coding in the XCS Classifier System for Sequence Labeling.Masaya Nakata, Tim Kovacs, Keiki Takadama
2014SMCMultiagent-based ABC algorithm for Autonomous Rescue Agent Cooperation.Rya Takano, D. Yamazaki, Yoshihiro Ichikawa, Kiyohiko Hattori, Keiki Takadama
2013CECSimple compact genetic algorithm for XCS.Masaya Nakata, Pier Luca Lanzi, Keiki Takadama
2013EUROGPAsynchronous Evaluation Based Genetic Programming: Comparison of Asynchronous and Synchronous Evaluation and Its Analysis.Tomohiro Harada, Keiki Takadama
2013GECCOTwo-stage non-dominated sorting and directed mating for solving problems with multi-objectives and constraints.Minami Miyakawa, Keiki Takadama, Hiroyuki Sato
2013GECCOSelection strategy for XCS with adaptive action mapping.Masaya Nakata, Pier Luca Lanzi, Keiki Takadama
2013HCITowards Understanding of Relationship among Pareto Optimal Solutions in Multi-dimensional Space via Interactive System.Keiki Takadama, Yuya Sawadaishi, Tomohiro Harada, Yoshihiro Ichikawa, Keiji Sato, Kiyohiko Hattori, Hiroyuki Sato, Tomohiro Yamaguchi
2013HCIModeling a Human's Learning Processes to Support Continuous Learning on Human Computer Interaction.Kouki Takemori, Tomohiro Yamaguchi, Kazuki Sasaji, Keiki Takadama
2012PPSNEnhancing Learning Capabilities by XCS with Best Action Mapping.Masaya Nakata, Pier Luca Lanzi, Keiki Takadama
2011HCIWhat Kinds of Human Negotiation Skill Can Be Acquired by Changing Negotiation Order of Bargaining Agents?Keiki Takadama, Atsushi Otaki, Keiji Sato, Hiroyasu Matsushima, Masayuki Otani, Yoshihiro Ichikawa, Kiyohiko Hattori, Hiroyuki Sato
2011ICMLAThe Biased Multi-objective Optimization Using the Reference Point: Toward the Industrial Logistics Network.Eriko Azuma, Tomohiro Shimada, Keiki Takadama, Hiroyuki Sato, Kiyohiko Hattori
2010CECDynamic matching range in Exemplar-based Learning Classifier System.Hiroyasu Matsushima, Kiyohiko Hattori, Hiroyuki Sato, Keiki Takadama
2010PPSNHybrid Directional-Biased Evolutionary Algorithm for Multi-Objective Optimization.Tomohiro Shimada, Masayuki Otani, Hiroyasu Matsushima, Hiroyuki Sato, Kiyohiko Hattori, Keiki Takadama
2007CECHierarchical importance sampling instead of annealing.Takayuki Higo, Keiki Takadama
2007IDEALExploring Quantitative Evaluation Criteria for Service and Potentials of New Service in Transportation: Analyzing Transport Networks of Railway, Subway, and Waterbus.Keiki Takadama, Takahiro Majima, Daisuke Watanabe, Mitsujiro Katsuhara
2006MABSCan Agents Acquire Human-Like Behaviors in a Sequential Bargaining Game? - Comparison of Roth's and Q-Learning Agents -.Keiki Takadama, Tetsuro Kawai, Yuhsuke Koyama
2005GECCOExploring XCS in multiagent environments.Hiroyasu Inoue, Keiki Takadama, Katsunori Shimohara
2005GECCOLearning classifier system equivalent with reinforcement learning with function approximation.Atsushi Wada, Keiki Takadama, Katsunori Shimohara
2005GECCOCounter example for Q-bucket-brigade under prediction problem.Atsushi Wada, Keiki Takadama, Katsunori Shimohara
2004MABSToward Guidelines for Modeling Learning Agents in Multiagent-Based Simulation: Implications from Q-Learning and Sarsa Agents.Keiki Takadama, Hironori Fujita
2003MABSTowards Verification and Validation in Multiagent-Based Systems and Simulations: Analyzing Different Learning Bargaining Agents.Keiki Takadama, Yutaka L. Suematsu, Norikazu Sugimoto, Norberto Eiji Nawa, Katsunori Shimohara
2002GECCOCross-validation In Multiagent-based Simulation: Analyzing Evolutionary Bargaining Agents.Keiki Takadama, Yutaka L. Suematsu, Norberto Eiji Nawa, Katsunori Shimohara
1999PRICAIHow to Design Good Results for Multiple Learning Agents in Scheduling Problems?Keiki Takadama, Masakazu Watabe, Katsunori Shimohara, Shinichi Nakasuka
1998PRICAIAmalyzing the Roles of Problem Solving and Learning in Organizational-Learning Oriented Classifier System.Keiki Takadama, Shinichi Nakasuka, Takao Terano
1998SMCFault tolerance in a multiple robots organization based on an organizational learning model.Hitomi Kasahara, Keiki Takadama, Shinichi Nakasuka, Katsunori Shimohara