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徹底攻略ディープラーニングG検定ジェネラリスト問題集 第3版

Published in インプレス, September 2024. Link: インプレス

著者: 株式会社スキルアップNeXt 小縣 信也, 株式会社スキルアップNeXt 斉藤 翔汰, 株式会社スキルアップNeXt 森田 大樹, 株式会社スキルアップNeXt 田澤 賢, 株式会社スキルアップNeXt 小宮 寛季, 株式会社スキルアップNeXt 山田 弦太朗, 株式会社スキルアップNeXt 安藤 遼哉 / 監修: 杉山 将

徹底攻略データサイエンティスト検定問題集［リテラシーレベル］対応 第2版

Published in インプレス, March 2025. Link: インプレス

著者: 株式会社スキルアップNeXt 小縣 信也, 株式会社スキルアップNeXt 斉藤 翔汰, 株式会社スキルアップNeXt 森田 大樹, 株式会社スキルアップNeXt 田澤 賢, 株式会社スキルアップNeXt 小宮 寛季, 株式会社スキルアップNeXt 山田 弦太朗, 株式会社スキルアップNeXt 安藤 遼哉,株式会社スキルアップNeXt 長谷川 寿人, 株式会社スキルアップNeXt 相川 隼人

miscellaneous

preprints

publications

On torsion-free modules and semi-hereditary rings

Published in Tokyo J. Math., Vol. 49, no. 1, pp. 177--187, June 2026. Links: journal

We prove several results concerning the structure theory of the class of semi-hereditary rings, focusing on the relationship between semi-hereditary rings and the flatness of torsion-free modules.

talks

Some topics on non-Noetherian commutative rings Permalink

Published:

Abstract

Homological methods are well studied in commutative ring theory. These methods have been used to study the properties of ideals in rings whose ideals are not necessarily finitely generated. In this talk, we introduce generalizations of theorems on Noetherian rings obtained by homological methods, and related topics on classes of rings.

Introduction to Quantum Information Technology Permalink

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Abstract

Quantum information technology is not only of theoretical and research importance, but is also being actively used in industry. In this talk, we will give an overview of industrial trends not only in Japan but also in the world, and introduce the potential applications of quantum sensors, including several case studies.

Introduction to Quantum Information Technology Permalink

Published:

Abstract

Quantum information technology is not only of theoretical and research importance, but is also being actively used in industry. In this talk, we will give an overview of industrial trends not only in Japan but also in the world, and introduce the potential applications of quantum sensors, including several case studies.

Bridging Industry and Academic Research: Advancing Digital, Green, and Quantum Education Permalink

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Abstract

This talk surveys SKILLUP NeXt’s work in AI/DX talent development and GX (Green Transformation), then outlines our plan to scale up quantum-technology education. By offering joint lectures and hands-on workshops with OIST and Q-STAR, and by leveraging cloud-based quantum computing platforms, we pursue both expert training and broad public outreach.

This work was performed for Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Promoting the application of advanced quantum technology platforms to social issues” (Funding agency: QST).

Q-STAR における量子人材育成に関する取り組み (Q-STAR’s efforts in fostering quantum human resources) Permalink

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Abstract

Q-STAR is an industry-academia-government consortium launched in 2021 to create new industries based on quantum technologies and to enhance Japan’s international competitiveness. This presentation outlines a human-resource development strategy designed to enable ten million people in Japan to make practical use of quantum technologies and to generate economic value on the order of 50 trillion yen by 2030. We describe multifaceted initiatives to cultivate quantum-skilled personnel—including the formulation of a common “Quantum Skill Standard,” the cross-sector SIP Education Program (featuring an introductory course and an OIST-based research-training track, a Global Leader Program linked to TQC 2024, and outreach events for the general public). Together, these efforts will establish an end-to-end pipeline that supports everything from R&D sites and supply chains to start-up creation, thereby accelerating the social implementation of quantum technologies.

Workshop on Quantum Sensors, “Diamonds are Being Used? Let’s Take a Look at Quantum Sensors!” Permalink

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Abstract

This talk will explain the principles of NV diamonds, which emit red light in response to green light, in a way that is easy for elementary, junior high, and high school students to understand. We will also introduce sensors that apply this technology and their use cases. Furthermore, participants can experience quantum technology firsthand through a mystery game utilizing NV diamonds.

有限性を仮定しない可換環論へのAI活用 (AI for Commutative Ring Theory without Finiteness Assumptions) Permalink

Published:

Abstract

I describe how ChatGPT was used in my research on non-Noetherian commutative ring theory. A counterexample showing that the Hamilton–Marley Cohen–Macaulay property is not preserved under localization took shape once the problem was reduced to constructing modules satisfying a few explicit conditions. ChatGPT then proposed constructions, which I verified by hand. By contrast, an attempt to analyze the Soublin–Alfonsi example, a coherent ring that is not stably coherent, remains inconclusive. Along the way, the model assigned to the ring the weak global dimension of its polynomial ring. Finally, I mention ongoing work (arXiv:2608.17879) on cohomological Cohen–Macaulayness, a local condition that implies local Cohen–Macaulayness in the sense of Hamilton–Marley.

Cohomological Cohen–Macaulayness in Non-Noetherian Rings Permalink

Published:

Abstract

Hamilton–Marley proved that the absolute integral closure A+ of an excellent Noetherian domain A of positive characteristic is Cohen–Macaulay in their sense (HMCM). However, HMCM is not preserved under localization in general, as shown by an example constructed by the speaker, and it remained unclear whether A+ is locally HMCM. In this talk, motivated by Bhatt’s notion of cohomological Cohen–Macaulayness, we introduce a stronger notion called CCM and show that every locally finite dimensional CCM ring is locally HMCM. As an application, we prove that integral algebras which are locally balanced big Cohen–Macaulay over a Noetherian ring are CCM. In particular, this shows that A+ is locally HMCM, strengthening the result of Hamilton–Marley.

teaching

theses