2021

    11/19
    Two undergraduate students in the ROUTE(Research Opportunities for UndergraduaTEs) program have joined Nakata Lab.


    10/15

    Five third-year undergraduate have joined Nakata Lab.

    conf2021


    10/15

    Our paper has been accepted to the oral session in IEEE SSCI 2021.

    Motoki Horiuchi and Masaya Nakata, Extended Learning Optimality Theory for the XCS classifier system on Multiple Reward Scheme, IEEE Symposium Series on Computational Intelligence (IEEE SSCI 2021) 2021, accepted


    9/23

    Nishihara, second-year master's degree student, presented at FAN2021 (21-23, Sep, Online), and he won the Excellent Paper Award !

    Kei Nishihara and Masaya Nakata, High-level Ensemble of Adaptive Differential Evolution with Prior-validation toward Computationally Expensive Optimization Problems, Proceedings of Symposium on Fuzzy, Artificial Intelligence, Neural Networks and Computational Intelligence (FAN2021), pp.132–-137, Sep. 2021, (in Japanese).

    fan2021


    9/17

    Hiruta, first-year master's degree student, and Isoda, undergraduate student, presented their papers at 2021 Annual Conference on Electronics, Information and Systems Institute of Electrical Engineers of Japan (IEEJ) (15-17, Sep, Online). We conducted a lively discussion although being held online.

    1. Mako Isoda, Yushi Miyahara, Takumi Sonoda, and, Masaya Nakata, Approximation-based Surrogate-assisted Evolutionary multi-objective algorithm with Nonlinear dimension reduction, Proceedings of 2021 Annual Conference on Electronics, Information and Systems IEEJ, pp.191--196, September 2021, (in Japanese).

    2. Yusuke Hiruta, Kei Nishihara, Yuji Koguma, Masakazu Fujii, and Masaya Nakata, Interactive construction of loading algorithm with Genetic Programming, 2021 Annual Conference on Electronics, Information and Systems, pp.197--202, Sep. 2021, (in Japanese).

    ieej2021


    9/9

    Sugawara, first-year master's degree student, presented at The 20th Conference of The Japanese Society for Evolutionary Computation (8-9, Sep, Online).

    Rui Sugawara, Motoki Horiuchi, and Masaya Nakata, --, Proceedings of The 20th Conference of The Japanese Society for Evolutionary Computation, Sep. 2021, (in Japanese).


    7/15

    Nishihara, second-year master's degree student, and Nakamura, first-year master's degree student, presented their papers at IEEE CEC 2021 and GECCO 2021, respectively.

    conf2021


    6/1

    Our paper has been accepted to the oral session in GECCO 2021.

    Yoshiki Nakamura, Motoki Horiuchi, and Masaya Nakata, Convergence Analysis of Rule-Generality on the XCS Classifier System, The Genetic and Evolutionary Computation Conference (GECCO) 2021, accepted


    4/23
    Three first-year master's degree students and one fourth-year undergraduate have joined Nakata Lab.


    4/23

    Our paper has been accepted to the oral session in IEEE CEC 2021.

    Kei Nishihara and Masaya Nakata, Comparison of Adaptive Differential Evolution Algorithms on the MOEA/D-DE Framework, IEEE Congress on Evolutionary Computation (CEC) 2021, accepted.


    3/27

    Nakata will hold a tutorial named Learning Classifier Systems: From Principles to Modern Systems in GECCO2021 with Assistant Professor Anthony Stein(University of Augsburg).

    Anthony Stein, Masaya Nakata, Learning Classifier Systems: From Principles to Modern Systems, Introductory Tutorial on Genetic and Evolutionary Compuation Conference 2021.


    3/25

    All five first generation students graduated from YNU. It was an unusual laboratory life, but each of us was able to do our best. We are very greatful to those who supported us.

    grad2020


    2/10

    Nishihara, first year graduate students, and Hiruta, undergraduate students, their papers have been accepted to IPSJ Transactions on Mathematical Modeling and its Applications.

    Their papers are the first journals as the Nakata Lab students.

    1. Kei Nishihara and Masaya Nakata, Performance improvement with Prior-validation framework for Algorithmic configuration on Self-adaptive differential evolution, IPSJ Transactions on Mathematical Modeling and its Applications, Accepted.
    2. Yusuke Hiruta, Kei Nishihara, Yuji Koguma, Masakazu Fujii and Masaya Nakata, Automated construction of Transferable loading algorithm with Cartesian Genetic Programming, IPSJ Transactions on Mathematical Modeling and its Applications, Accepted.

2020

    12/19 - 20

    Kakemi and Sonoda, first year graduate students, and Kuriyama, Nakamura and Miyahara, undergraduate students, presented at " The 14th Symposium of The Japanese Society for Evolutionary Computation" (19-20, Dec., Online). Notably, Sonoda won "the best poster prize" for the second consecutive year!

    Sonoda_awd_syp


    12/17

    Nishihara, first year graduate students, and Hiruta, undergraduate students, presented at "The 131st MPS conference" (17-18, Dec., Online). Hiruta, undergraduate student, fulfilled his best performance in spite of the first time about the conference presentation thanks to a lot of practices.

    MPS_131


    12/10

    Prof. Nakata's review paper has accepted in "The Journal of The Institute of Electrical Engineers of Japan" by The Institute of Electrical Engineers of Japan. The more information is at Publication > Review.

    Masaya Nakata, Current Direction on Evolutionary Rule-learning, The Journal of The Institute of Electrical Engineers of Japan, Vol.140, No.12, pp.786-789, The Institute of Electrical Engineers of Japan, 2020.


    10/6

    Five third year undergraduate students were assigned to Nakata Lab.

    2020_F_members


    7/24

    Sonoda and Nishihara, first year graduate students, presented at IEEE WCCI 2020 (Glasgow, UK). This is one of the most important international conferences in the field of computional intelligence, and held by online because of COVID-19.

    IEEE_WCCI_2020


    7/12

    Horiuchi, first year graduate students, presented at GECCO 2020 (Cancun, Mexico), one of the most important international conferences on evolutionary computation, but held online due to COVID-19.

    GECCO_2020


    6/2

    Our paper about the learning optimality on the evolutionary rule-based system has been accepted to IEEE Transactions on Evolutionary Computation. This is a joint work with A/Prof. Nakata and A/Prof. Browne (Victoria University of Wellington).

    Masaya Nakata and Will N. Browne, Learning Optimality Theory for Accuracy-based Learning Classifier System, IEEE Transactions on Evolutionary Computation, Early access.


    4/3

    One first-year master's degree student and five undergraduate students were assigned to Nakata Lab.

    2020_members


    3/31

    Nishihara, an undergraduate, was awarded by the YNU, Alumni Association of the Department of Electrical Engineering and Computer Science and The Institute of Electrical Engineers of Japan.

    IEE


    3/24

    All five first generation students graduated from YNU.

    As our laboratory, we were able to have a good year off to start out great. We are very greatful to those who supported us.

    grad2019


    3/21

    Two papers by two undergraduates (one by Sonoda and the other by Nishihara) have been accepted to the oral session in IEEE WCCI2020(CEC).

    1. Takumi Sonoda and Masaya Nakata, MOEA/D-S^3: MOEA/D using SVM-based Surrogates adjusted to Subproblems for Many objective optimization, IEEE World Congress on Computational Intelligence 2020, accepted.

    2. Kei Nishihara and Masaya Nakata, Competitive-Adaptive Algorithm-Tuning of Metaheuristics inspired by the Equilibrium Theory: A Case Study, IEEE World Congress on Computational Intelligence 2020, accepted.


    3/20

    A paper by Horiuchi, an undergraduate, has been accepted to the oral session in GECCO2020.

    Motoki Horiuchi and Masaya Nakata, Self-adaptation of XCS learning parameters based on Learning theory, Genetic and Evolutionary Compuation Conference 2020, accepted.


    3/6

    Yoshikawa, an undergraduate, had an oral presentation at The 82nd National Convention of IPSJ (5-7, Mar. at Kanazawa Institute of Technology).

    Although the convention changed to be held online because of the COVID-19, he won Student Encouragement Award of IPSJ National Convention!

    Taichi Yoshikawa and Masaya Nakata, Cooperative Co-evolutionary Algorithm Considering Variable Dependency for Large Scale Global Optimization Problems

    IPSJ2020


    2/28

    Our open labs(Mar. 2, 3 and 9 11:00am) for the laboratory assignment have been canceled. As an alternative, we will set up individual explanations while taking infection prevention measures. Those who want to know about our lab can talk with the members of Nakata lab in detail.

    Checking laboratory assignment page via MembersOnly beforehand, please send an e-mail to Prof. Nakata.


    2/28

    Prof. Nakata will hold the 23rd International Workshop on Learning Classifier Systems (IWLCS2020) in GECCO2020 with Dr. Anthony Stein and Mr. David Pätzel(University of Augsburg).

    Anthony Stein, Masaya Nakata, David Pätzel, IWLCS 2020 — 23rd International Workshop on Learning Classifier Systems, Workshop on Genetic and Evolutionary Compuation Conference 2020, accepted.


    2/28

    Prof. Nakata will hold a tutorial named Learning Classifier Systems: From Principles to Modern Systems in GECCO2020 with Dr. Anthony Stein(University of Augsburg).

    Anthony Stein, Masaya Nakata, Learning Classifier Systems: From Principles to Modern Systems, Tutorial on Genetic and Evolutionary Compuation Conference 2020, accepted.


2019

    12/15

    Sonoda and Nishihara, undergraduates, had a poster presentation at The 13th Symposium of The Japanese Society for Evolutionary Computation (14-15, Dec. in Minami-Awaji city).

    Notably, Sonoda won "the best poster prize" among 57 presentators!

    Takumi Sonoda and Masaya Nakata, Many-objective optimization by MOEA/D using SVM-based Surrogate for Subproblem

    Jpnsec2019sym1

    Kei Nishihara and Masaya Nakata, Competitively Adaptive Algorithm Tuning inspired by Equilibrium Theory

    Jpnsec2019sym2

    Jpnsec2019sym3


    9/27

    Horiuchi, an undergraduate, had a poster presentation at The 16th Conference of The Japanese Society for Evolutionary Computation (27-28, Sep. at Tohoku University).

    Motoki Horiuchi and Masaya Nakata, Extended XCS Learning Theory to Control Correctness of Rule-indentification

    Jpnsec2019con


    9/19

    Prof. Nakata has published a review paper in "Journal of The Society of Instrument and Control Engineers" by The Society of Instrument and Control Engineers. The more information is at Publication > Review.

    Masaya Nakata, Data Mining with Evolutionary Rule-Based Learning, Journal of The Society of Instrument and Control Engineers, Vol.58, No.9, pp.684-688, The Society of Instrument and Control Engineers, in Japan, September 2019


    7/17

    Prof. Nakata held an International Workshop on Learning Classifier Systems (IWLCS) in GECCO2019 with Dr. Anthony Stein(University of Augsburg) and Takato Tatsumi(The University of Electro-Communications).

    International Workshop on Learning Classifier Systems (IWLCS)

    Masaya Nakata, Anthony Stein, Takato Tatsumi


    6/4

    Prof. Nakata is going to have a Tutorial on Evolutionary Machine Learning in IEEE CEC2019 with Lecturer Shirakawa(YNU Faculty of Environment and Information Sciences) and Prof. Will Browne(Victoria University of Wellington).

    CEC-T14 Evolutionary Machine Learning

    Masaya Nakata, Shinichi Shirakawa, Will Browne


    Prof. Nakata oganaizes a Special Session on New Directions in Evolutionary Machine Learning in IEEE CEC2019 with Prof. Yusuke Nojima(Osaka Prefecture University) and Prof. Will Browne(Victoria University of Wellington). A lot of papers are submitted and nine of those are accepted and published.

    CEC-15 Special Session on New Directions in Evolutionary Machine Learning

    Masaya Nakata, Yusuke Nojima, Will Browne


    6/3

    Added a content for candidates for our laboratory in About page.

    Please be sure to make an appointment before visiting us.


    4/25

    Two papers below are accepted by GECCO2019 and IEEE CEC2019.

    1. Masaya Nakata and Will Browne, How XCS Can Prevent Misdistinguishing Rule Accuracy: A Preliminary Study, Genetic and Evolutionary Computation, accepted.

    2. Keiki Takadama, Daichi Yamazaki, Masaya Nakata and Hiroyuki Sato, Complex-Valued-based Learning Classifier System for POMDP Environments, IEEE Congress on Evolutionary Compuation 2019, accepted.


    3/28

    Nakata Lab was launched with five undergraduate students.

    Launch


2021

    8/10

    As a conclusion of the spring semester's research activities, the first and second year master's degree students gave presentations at the graduate school midterm presentations. In the evening, we had an online party to celebrate the spring semester.

    online


    2/22

    Third year undergraduate students presented their results.

    This is the end of this year's official events.

    This year, we are forced to change the new life style because of COVID-19. We were seeking the new laboratory style with keeping up the research activities. We are very greatful to those who supported us.

    B3_Presentation


    2/17 - 18

    All forth year undergraduate students presented their graduate researches.

    After careful preparation and practice for each achievement, we reached the day.


2020

    12/4

    Remote programming contest was held as part of the newly assigned students' programming exercise.

    They divided into two teams, DE and PSO, learned each algorithm and implemented the program. After then, they made their own improvements to improve performance and presented their original methods.

    They will study with their own research on the original theme!

    DE_vs_PSO


    8/27

    We're practicing for midterm presentation at graduate hold in summer vacation school by online. We could practice realistically(?) thanks to development of technology.

    Virtual_practice


    5/29

    Today, newly assigned students presented our own research themes.

    We conducted a research on our own theme and presented it on slides.

    Our first research activities have finally started, and I will take on the challenge with all my might!

    In addition, one student was assigned to Nakata Lab as a "ROUTE" program member. He is from Vietnam, but he could speak Japanese very well.

    Let's work together as a member of Nakata Lab!

    My_theme


    5/15

    Remote programming contest was held as part of programming exercise.

    As in the previous year, we divided into two teams, DE and PSO, learned each algorithm and implemented the program.

    After then, we made our own improvements to improve performance and voted on the novelty and uniqueness of the program.

    We will study with our own research on the original theme!

    DE_vs_PSO


    2/19

    All five first generation students presented their graduate researches.

    After careful preparation and practice for each achievement, we reached the day.

    Although each student has his tasks, this is the end of this year's official events.

    As our laboratory, we were able to have a good year off to start out great. We are very greatful to those who supported us.

    thesis


2019

    9/5

    We (including Prof. Nakata) set up a training camp in Atami and Hatsushima Island in Shizuoka Prefecture.

    On day one, after enjoying Atami foodie and shopping streets, students improved their research programm in a concentrated manner. Hard-working-after hot spring was a superior one!

    On day two, we had more than enough Atami Castle, illusionism, ropeway and fruits from the sea in Atami, athletic, resort and Hawaiian-ethnic foods in Hatsushima Island.

    We all had a great time and promoted bonding, wishing to take place in next year...

    Atami1 Atami2 Atami3


    9/5

    Students showed temporary experimental results on each research. Some achieved perfoemance improvement.

    In the rest of summer holidays, we'll develop from what we got in a question and answers session.

    Mid


    7/24

    Prof. Nakata took the rostrum at the Science Cafe for general public to be hosted by YNU Research Initiatives and Promotion Organization, and three member from our labolatory took part in it as facilitators.

    ScienceCafe


    6/21

    On every Friday, students present their research progress with slides in rotation, and bounce ideas off each other under the supervision of our teacher.

    ReserchProgress


    5/31

    Every member delivered each reserch theme with LaTeX-based draft and slides, introducing background, problems, overview of original approach, and element technologies.

    Each reserch theme is not given by the professor, but besed on student's idea and polished by repeated discussions between the student and the professor, and besides, it took a lot of time to prepare. All the more reason, the presentation and discussion today were a fulfilling ones.

    It is, however, barely at the starting line, so we'll try hard!

    Themes


    5/24

    Materials in private levtures are getting more and more difficult, but we keep trying to understand and explain...

    Optimization


    5/10

    We had a private lecture and contest between PSO and DE.

    The middle results are below...

    Mid results PSO and DE



    We joined the cleaning event for an undergraduate student body

    and refreshed ourselves with coke!

    Cleaning outside Coke


    4/26

    Hello, I'm Kei Nishihara, main web page updater.

    We held a private lecture on How to make effective slides and papers.

    How to write papers



    After having our Lab cleaned, we start Golden Week holidays...

    Cleaning inside Drink


    4/12

    Enjoyed ourselves in a small party in Lab with pan-fried noodles and dumpling!

    Hot plate


    4/9

    We had a good time at a welcome party.

    Welcome