Finland-Japan Workshop in Industrial and Applied Mathematics 2026
My recent research consists of three main pillars. One of these focuses on Topological Data Analysis (TDA) and … 続きを読む
publishable
publishable
The multi-filtration and the multi-persistence on a total object
Discussion and Verdict I have observed a tendency to conflate, or at least structurally identify, (multi-) fil … 続きを読む
The Fractions
Fractions are deceptively difficult. I have seen many parents agonize over how to explain concepts like 1/4 or … 続きを読む
Sheafification as a free construction
Introduction In the world of algebra, we often encounter “free” constructions. Think of the free g … 続きを読む
教育崩壊が産む「Z思想」― 日本の未来を蝕む冷笑主義とコスパ志向の源流
背景仮説: 当事者の教育介入・選択の自由問題 “義務教育” は日本国民に教育を受ける「自由」を保障する一方で、現体制・制度は時代の変遷に適合しているとはいい難く、実態として次のような(i.e., … 続きを読む
Why we prefer “the right-side” of a critical value?
One found that there is the convention where denotes the upper-tail critical value such that , as a standard n … 続きを読む
predicate data model
“Decision Tree”は汎用性のあるデータ構造で、”series of predicates” — つまり (x<2, y>=0.4, z=”AB … 続きを読む
実験的なコンテンツの運用を開始
速報系トレンド見聞録を始めました。[1]まだSSL導入していないのでブラウザのポリシーに依ってはブロックされるかも知れません。例えばChromeで警告が出た場合は、ヘルプにあるように … Cont … 続きを読む
Introduction to Central Limit Theorem + α
In short, CLT (Central Limit Theorem) theoretically supports the intuitive phenomena. Averaging things out ten … 続きを読む
Note on extrema
For an optimization problem, we want to find an efficient way of calculating For 1, the Newton’s method … 続きを読む