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  <id>tag:speakerdeck.com,2005:/konakalab</id>
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  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1569664</id>
    <published>2026-07-20T03:47:32-04:00</published>
    <updated>2026-07-20T03:51:26-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/the-principle-of-victory-discovered-by-science-at-kariya-city-2027-dot-07"/>
    <title>科学で迫る勝敗の法則－スポーツデータ分析の最前線 (刈谷市連携講座．2026年7月) / The principle of victory discovered by science. at Kariya City, 2027.07</title>
    <content type="html">刈谷市総合文化センターで2026年7月18日に開催された刈谷市と名城大学の連携講座で発表したスライドです．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/01a05bf0a12e4decba9f3f30119a0091/preview_slide_0.jpg?40033544" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1561613</id>
    <published>2026-06-30T22:24:02-04:00</published>
    <updated>2026-07-01T01:16:58-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/massey-ratings-for-match-outcome-prediction-in-table-tennis-evidence-of-greater-stability-than-the-ittf-world-ranking"/>
    <title>Massey Ratings for Match Outcome Prediction in Table Tennis: Evidence of Greater Stability than the ITTF World Ranking</title>
    <content type="html">The 18th Australasian Conference on Mathematics and Computers in Sport (2026/7/1-3) で大学院生が発表したスライドです．卓球の世界ランキングの予測能力を定量的に分析したのち，ゲーム数を考慮したMassey法が予測能力を改善することを確認しました．

https://www.anziam.org.au/The+18th+Australasian+Conference+on+Mathematics+and+Computers+in+Sport</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/52ddb3d3c21c4ad68b9de475b34b9417/preview_slide_0.jpg?39862742" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1518671</id>
    <published>2026-03-19T01:08:41-04:00</published>
    <updated>2026-03-19T01:14:21-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/construction-of-expected-points-model-using-shot-data-of-bleague"/>
    <title>Bリーグのショットデータを活用した得点期待値モデルの構築 / Construction of expected points model using shot data of B.LEAGUE</title>
    <content type="html">電子情報通信学会システム数理と応用研究会（2026年3月19日）で発表したスライドです．https://ken.ieice.org/ken/paper/20260319XctQ/ 

B.LEAGUEが公開しているショットデータ(位置と成否)から得点期待値モデルを構築し，それがチームの特徴の分析のための量となることを示しました．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/76aeb608e35e4347b6331ce4e62082ab/preview_slide_0.jpg?38780625" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1464785</id>
    <published>2025-11-13T00:00:13-05:00</published>
    <updated>2025-11-13T00:03:36-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/a-quantitative-performance-evaluation-of-kanto-university-football-association-using-elo-rating"/>
    <title>イロレーティングを活用した関東大学サッカーの定量的実力評価 / A quantitative performance evaluation of Kanto University Football Association using Elo rating</title>
    <content type="html">電子情報通信学会システム数理と応用研究会（2025年11月13日）で発表したスライドです．

https://ken.ieice.org/ken/paper/20251114Wcol/

スポーツにおける代表的な定量的実力評価手法であるイロレーティングを利用し，関東大学サッカーの実力分布を定量化しました．大学の競技成績とプロ内定者数についても併せて評価し，上下に分割されている1部，2部，および3部の実力分布が重複していることを確認しました．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/4ebbccc41cf94c75ad572dd1d75422c6/preview_slide_0.jpg?37356460" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1464780</id>
    <published>2025-11-12T23:51:01-05:00</published>
    <updated>2025-11-12T23:56:26-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/controller-design-for-augmented-systems-with-symbolic-inputs-and-outputs-using-feedforward-neural-network"/>
    <title>フィードフォワードニューラルネットワークを用いた記号入出力制御系に対する制御器設計 / Controller Design for Augmented Systems with Symbolic Inputs and Outputs Using Feedforward Neural Network</title>
    <content type="html">電子情報通信学会システム数理と応用研究会（2025年11月13日）で発表したスライドです．

https://ken.ieice.org/ken/paper/20251113vcon/

記号的な入出力を持つ動的なシステムに対し，機械学習による制御系設計をニューラルネットワークを利用して実現しました．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/2f6362fb4d194edd9ff1d941dac9f0f4/preview_slide_0.jpg?37356350" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1464784</id>
    <published>2025-11-12T23:59:14-05:00</published>
    <updated>2025-11-13T00:00:34-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/performance-evaluation-of-match-result-prediction-models-using-the-point-ratio-of-the-ittf-table-tennis-world-ranking"/>
    <title>ITTF卓球世界ランキングのポイント比を用いた試合結果予測モデルの性能評価 / Performance evaluation of match result prediction models using the point ratio of the ITTF Table Tennis World Ranking</title>
    <content type="html">電子情報通信学会システム数理と応用研究会（2025年11月13日）で発表したスライドです．

https://ken.ieice.org/ken/paper/20251113Tcok/

卓球の公式世界ランキングであるITTFランキングポイントがどのように試合結果を予測できるのか，およびその予測性能について議論しました．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/6247f31a82564d8a82f98dd7d701183d/preview_slide_0.jpg?37356433" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1417127</id>
    <published>2025-07-31T03:48:13-04:00</published>
    <updated>2025-07-31T04:04:15-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/lecture-in-nssu"/>
    <title>データから見る勝敗の法則 / The principle of victory discovered by science (open lecture in NSSU)</title>
    <content type="html">2025年7月31日に日本体育大学大学院で講演した内容です．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/35966bdabfbe4d14ab172c2f04e73818/preview_slide_0.jpg?36112311" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1382419</id>
    <published>2025-06-11T22:33:42-04:00</published>
    <updated>2025-06-11T22:36:50-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/performance-evaluation-and-ranking-of-drivers-in-multiple-motorsports-using-masseys-method"/>
    <title>Performance Evaluation and Ranking of Drivers in Multiple Motorsports Using Massey’s Method</title>
    <content type="html">Presented in Mathsport International 2025 (https://math.uni.lu/midas/events/mathsports2025/)

Abstract:
In four-wheeled motorsports, various championships, such as Formula 1 (F1), the World Endurance Championship (WEC), and Super GT, are organized globally. While these championships have significant differences in vehicles used and the regulations applied, they share the common characteristic of employing four-wheeled cars. These characteristics allow drivers to compete within the same championship, participate in multiple series simultaneously, or transfer to entirely different championships. Furthermore, participation in F1 requires a Super License, and some championships outside of F1 award Super License points to drivers for obtaining this license. Despite these connections and hierarchical relationships between championships -such as drivers participating across different championships and the Super License system itself- there is no official ranking system for drivers across multiple championships. In addition, the authors' investigation found no existing studies that use validated rating methods across various championships to evaluate the performance of drivers.

This study aims to develop a method for quantitatively evaluating the achievements of all drivers who have participated in multiple championships, using Massey's rating method, a well-known quantitative performance evaluation approach. As a result, the study tries to establish a unified ranking system of drivers in a wide range of four-wheeled motorsports championships.

In order to assess the performance of each driver, it is necessary to compare the results of individual drivers and compute evaluation values by using drivers who have participated in multiple championships as a reference point. For this purpose, the evaluation methodology is based on Massey's rating method. This rating method is commonly applied in sports where two competitors compete against each other for scores. It assumes that the difference in the rating values between players explains the score difference of one match, and then estimates the rating value of every player based on the match results using the least squares method.

In this study, Massey’s method is extended to ranking-based race competitions by replacing the score difference with the logarithmic difference in race positions. The resulting ratings can be interpreted as performance evaluation values for the drivers.

Data has been collected from championships involving formula cars in Europe, Japan, and the United States to calculate the performance evaluation values. Eight series were analyzed: Formula 1, Formula 2, Formula 3, Formula E, Super Formula, Super Formula Lights, IndyCar, and IndyCar Lights. The data collection spanned three years, from 2021 to 2023, encompassing 275 drivers.

Using this method, we calculated the performance evaluation values of drivers participating in these championships. The results revealed performance evaluation values that reflect hierarchical relationships between championships. Additionally, in championships such as F1, where competition in vehicle development plays a significant role and dominance tends to persist, the drivers with consecutive victories were to have exceptionally high-performance evaluation values.
Future work is focusing on analyzing the transitions in performance evaluation values for individual drivers to validate the predictive accuracy.
</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/8b56ce2aecc44e0382688980d4ab4413/preview_slide_0.jpg?35428705" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1378959</id>
    <published>2025-06-03T16:51:40-04:00</published>
    <updated>2025-06-04T10:39:32-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/optimization-of-the-tournament-format-for-the-nationwide-high-school-kyudo-competition-in-japan"/>
    <title>Optimization of the Tournament Format for the Nationwide High School Kyudo Competition in Japan</title>
    <content type="html">Presented in Mathsport International 2025 (https://math.uni.lu/midas/events/mathsports2025/)

Abstract: This study proposes an optimized format for a nationwide high school Kyudo tournament in Japan, addressing the challenges in balancing fairness, educational value, and practical constraints. Kyudo’s binary scoring system makes skill assessment difficult with limited attempts. Using historical data, we estimated the participants’ skill distributions and conducted simulations to evaluate tournament formats. The proposed format increases the number of preliminary attempts from four to six and removes the semifinals, reducing the variability in total attempts while maintaining comparable ranking accuracy. This ensures fairness, sufficient opportunities for skill demonstration, and alignment with Kyudo’s traditional and educational values, offering a robust framework for student-focused competition.</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/7c0f971c7b0f45cc807d4298cb54ed1e/preview_slide_0.jpg?35327962" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1344567</id>
    <published>2025-03-24T00:54:33-04:00</published>
    <updated>2025-03-25T00:30:03-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/applied-mathematics-for-sports-entertainment"/>
    <title>システム数理と応用分野の未来を切り拓くロードマップ・エンターテインメント(スポーツ)への応用 / Applied mathematics for sports entertainment</title>
    <content type="html">電子情報通信学会総合大会2025(https://www.ieice.org/jpn_r/activities/taikai/general/2025/ ) で発表したスライドです．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/f03ca0af924d4bde86a1c9ea4de2ae43/preview_slide_0.jpg?34364070" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1339311</id>
    <published>2025-03-12T21:35:23-04:00</published>
    <updated>2025-03-14T00:03:49-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/konakalab-presentation-at-mss-2025-dot-03"/>
    <title>実力評価性能を考慮した弓道高校生全国大会の大会制度設計の提案 / (konakalab presentation at MSS 2025.03)</title>
    <content type="html">2025年3月14日に電子情報通信学会システム数理と応用研究会で発表したスライドです．

https://ken.ieichttps://ken.ieice.org/ken/paper/20250314PcIk/e.org/ken/paper/20250314PcIk/

学術的・技術的貢献は以下です．
・弓道の大会結果から選手の成功確率の分布を推定する手票を提案・実装しました．
・弓道の大会についての評価指標を以下の観点から提案しました．
＊選手の最小射数
＊大会の合計射数
＊大会の実力測定会としての性能</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/12c8d1e8f6c140ceb335e1255b92b969/preview_slide_0.jpg?34210825" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1339345</id>
    <published>2025-03-12T23:02:44-04:00</published>
    <updated>2025-03-13T22:51:49-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/development-of-a-performance-evaluation-method-for-formula-race-drivers-using-massey-ratings"/>
    <title>Masseyのレーティングを用いたフォーミュラレースドライバーの実績評価手法の開発 / Development of a Performance Evaluation Method for Formula Race Drivers Using Massey Ratings</title>
    <content type="html">電子情報通信学会システム数理と応用研究会（2025年3月13日）で発表したスライドです．

https://ken.ieice.org/ken/paper/20250313EciB/

F1, SuperFormula, IndyCarなど複数のフォーミュラレースに参戦するドライバーの統一的な実績評価（ランキング）を作成する方法を提案し，実際に計算してみました．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/9875fee36fda49bc84419706d10de05f/preview_slide_0.jpg?34212646" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1298080</id>
    <published>2024-12-19T05:10:01-05:00</published>
    <updated>2024-12-19T05:15:13-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/the-principle-of-victory-discovered-by-science-lecture-for-young-academists-in-ieej-sice"/>
    <title>科学で迫る勝敗の法則(電気学会・SICE若手セミナー講演 2024年12月) / The principle of victory discovered by science (Lecture for young academists in IEEJ-SICE))</title>
    <content type="html">計測自動制御学会中部支部「電機計測制御技術ワーキングセミナー」
電気学会東海支部「次世代パワーエレクトロニクス」若手セミナー
合同講演会において講演したスライドです(講演時間：90分)

主に大学院生向けということで，後半の業績紹介が少し多めになっています．

URL: https://www.iee.jp/tokai/20241217wakate/</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/fc40b18b91ab49b18accc92fd79e7044/preview_slide_0.jpg?33112455" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1272147</id>
    <published>2024-11-04T12:43:24-05:00</published>
    <updated>2024-11-04T18:05:00-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/design-of-three-dimensional-binary-manipulators-for-pick-and-place-task-avoiding-obstacles-iecon2024"/>
    <title>Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)</title>
    <content type="html">Title: Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles

This research result is an extension of our previous work (https://speakerdeck.com/konakalab/design-of-three-dimensional-binary-manipulators-based-on-the-ks-statistic-and-maximum-empty-circles-iecon2023).

This presented was at IEEE IECON 2024(https://www.iecon-2024.org/). Movies are not included due to the specifications of speakedeck.</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/1706b9139d834dc395b29cb96323c017/preview_slide_0.jpg?32472899" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1249124</id>
    <published>2024-09-24T22:58:54-04:00</published>
    <updated>2024-12-19T05:19:36-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/the-principle-of-victory-discovered-by-science-open-lecture-in-meijo-univ-2024"/>
    <title>科学で迫る勝敗の法則(名城大学公開講座．2024年10月) / The principle of victory discovered by science (Open lecture in Meijo Univ. 2024)</title>
    <content type="html">名城大学公開講座2024『科学で迫る勝敗の法則～スポーツデータ分析の最前線～』（主催：情報工学部）（開催：2024年10月12日）で使用したスライドです．講演時間：休憩込み120分．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/7f8aac8c5534448db59fdcb456db4143/preview_slide_0.jpg?31867592" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1231719</id>
    <published>2024-08-26T05:51:22-04:00</published>
    <updated>2024-08-28T23:55:44-04:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/paird-comparison-prediction-model-for-ball-games-in-recent-olympic-games"/>
    <title>五輪球技5競技10種目に対する一対比較モデルの予測性能の継続的調査 / Paird comparison prediction model for ball games in recent Olympic Games</title>
    <content type="html">令和6年度　電気・電子・情報関係学会東海支部連合大会(2024年8月28日（水）〜29日（木）　岐阜大学)で発表したスライドです．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/8c1184ad719c4db991b1a1d574112eac/preview_slide_0.jpg?31491151" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1143522</id>
    <published>2024-02-07T04:50:35-05:00</published>
    <updated>2024-02-07T04:54:07-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/patrol-route-design-considering-various-types-of-intrudes"/>
    <title>様々な侵入者タイプに対応した適切な警備計画の策定 / Patrol route design considering various types of intrudes</title>
    <content type="html">巡回警備ロボット採用時に，その警備を観測可能な侵入者を想定し，どのような警備計画手法が適切かを議論しました．

2023年度名城大学理工学研究科情報工学専攻修士論文公聴会で発表したスライドです．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/59bf5955f567420c8240575ac318ce40/preview_slide_0.jpg?28849673" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <entry>
    <id>tag:speakerdeck.com,2005:Talk/1143519</id>
    <published>2024-02-07T04:44:35-05:00</published>
    <updated>2024-02-07T04:48:18-05:00</updated>
    <link rel="alternate" type="text/html" href="https://speakerdeck.com/konakalab/design-of-binary-manipulator-avoiding-obstacles-in-workspace"/>
    <title>作業領域内の障害物を回避可能なバイナリマニピュレータの設計 / Design of binary manipulator avoiding obstacles in workspace</title>
    <content type="html">アクチュエータが伸縮の二値をとる特殊なマニピュレータ(バイナリマニピュレータ)について，ピックアンドプレイスと障害物回避を考慮した構造設計手法を進化計算で解く方法を提案しました．

2023年度名城大学理工学研究科情報工学専攻修士論文公聴会で発表したスライドです．</content>
<media:thumbnail url="https://files.speakerdeck.com/presentations/413fba7e5bd34558b109f7d847e54c3b/preview_slide_0.jpg?28849563" width='' height='' xmlns:media='http://search.yahoo.com/mrss/'></media:thumbnail>    <author>
      <name>konakalab (@konakalab)</name>
    </author>
  </entry>
  <title>konakalab (@konakalab) on Speaker Deck</title>
  <updated>2026-07-20T03:47:32-04:00</updated>
</feed>
