囲碁AIを用いたプレイヤーの棋力推定

　ゲームAIに関する研究は，人間のトップを超えるという一つの大目標を達成した後, 強くする研究から，十分に強くなったAIを利用する研究へと変遷している．なかでも，プレイヤーの強さを測るためにゲームAIを用いる手法は，比較的少ない対戦で棋力を推定できるばかりか客観的な評価ができるため，その結果をすぐにフィードバックすることでプレイヤー自身の学習に役立てることができるといった利点もある．　本研究では従来チェスや将棋．オセロといった二人完全情報確定零和ゲームで行われてきた“ゲームAIを利用した棋力推定”のアプローチを囲碁に応用する手法について検討した. 他のゲームと囲碁AIの大きな違いはベースとなっているアルゴリズムがミニマックス探索ではなく，モンテカルロ木探索（MCTS）である点である．そのため，従来の手法で用いられてきたミニマックス探索でいうところの「評価値」の代わりに，本研究ではMCTSが導き出す局面評価に相当する概念である「勝率」という指標を用いることにした．棋譜の評価においては, MCTSのみ用いた囲碁プログラムと，Alpha Go の探索手法に倣ってDNN（Deep Neural Network）を用いた囲碁プログラムの両者を用いて実験結果の比較検証を行う．　勝率を用いて棋譜から一致率，好手率，悪手率，平均好手，平均悪手，平均損失を評価指標として算出する方法について提案した．そして，オンライ囲碁サーバー“幽玄の間”の15級から8段までのプレイヤーの棋譜を分析し，段級位-評価指標間の線形近似式を求めた．また, 実際にオンライン囲碁サーバーの一般プレイヤーの棋譜を用いて, 将棋の先行研究と同様に回帰分析を行った. この線形近似式を用いて“幽玄の間”のプレイヤー10人の棋力推定実験を行った結果，Value Networkを用いた棋力推定実験では平均平方二乗誤差にして 2.32（段・級）程度の高い推定能力で棋力を推定することを確認した. この結果は，囲碁の棋力推定に関する先行研究よりかなり良い結果であった.電気通信大学201

Safety and Reliability - Safe Societies in a Changing World

The contributions cover a wide range of methodologies and application areas for safety and reliability that contribute to safe societies in a changing world. These methodologies and applications include: - foundations of risk and reliability assessment and management - mathematical methods in reliability and safety - risk assessment - risk management - system reliability - uncertainty analysis - digitalization and big data - prognostics and system health management - occupational safety - accident and incident modeling - maintenance modeling and applications - simulation for safety and reliability analysis - dynamic risk and barrier management - organizational factors and safety culture - human factors and human reliability - resilience engineering - structural reliability - natural hazards - security - economic analysis in risk managemen

Strategic Latency Unleashed: The Role of Technology in a Revisionist Global Order and the Implications for Special Operations Forces

The article of record may be found at https://cgsr.llnl.govThis work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory in part under Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344. The views and opinions of the author expressed herein do not necessarily state or reflect those of the United States government or Lawrence Livermore National Security, LLC. ISBN-978-1-952565-07-6 LCCN-2021901137 LLNL-BOOK-818513 TID-59693This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory in part under Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344. The views and opinions of the author expressed herein do not necessarily state or reflect those of the United States government or Lawrence Livermore National Security, LLC. ISBN-978-1-952565-07-6 LCCN-2021901137 LLNL-BOOK-818513 TID-5969

Soulful bodies and superflat temporalities: a nomadology of the otaku database of world history at the ends of history

This thesis is a philosophical engagement with the popular, low, and vernacular theories of History performed and expressed within contemporary Japanese manga (‘comics’) and anime (‘limited animation’), and most importantly, in the global production and consumption of otaku (‘manga and anime fan’) cultural and media ecologies. My project is rooted in a reading of the post-structural theoretical inquiries of Gilles Deleuze in parallel with what media theorist McKenzie Wark calls ‘otaku philosophy’ to examine how both high and low theories articulate anxieties and fascinations with the global theoretical discourses on ‘the ends of History’ and the imminent demise of industrial modernity. The first portion of the thesis is dedicated to a reading of the Japanese counter-cultural manga movement called gekiga (‘dramatic pictures’). In traversing gekiga’s post-war lineages to its revival in the medievalism of otaku artists Miura Kentarō and Yukimura Makoto, the first part postulates on what an anti-modern, anti-historical approach – or what Deleuze and Guattari call a nomadology – might look and feel like as it is mediated in the manga form. The second portion of the thesis examines the way in which Japanese anime mobilises the philosophies of nomadology in its filmic form and transmedial properties. In a critical assessment of the anime works of the otaku-founded media corporation Type-Moon, this section explores the Fate series alongside Deleuzian film and media philosophies to explore the infinite potentialities and recursive limitations of otaku nomadologies as they materialise beyond the screen. By reassessing the rise of otaku culture as a vernacular, global, and cosmopolitan rise in the critique of modernity and History, this thesis hopes to explore how transcultural and transmedial fan philosophies of historicity, memory, and temporality can be recontextualised within current academic debates about the efficacy of post-national historiographic pedagogies explored in the fields of postcolonial studies, comparative studies, global studies, and media studies