Writing / Notes
Writing
Articles, notes, and external posts in English and Japanese. This page is designed for mixed-language publishing without requiring every item to be translated.
Medium
Author pageUnderstanding the Skewed Word Distribution in ChatGPT-Generated Texts
A thought experiment on why ChatGPT-generated documents may show skewed word choices, using tokenization and embedding-space hypotheses.
Enhancing Monte Carlo Dropout
An exploration of uncertainty estimation in deep learning, extending Monte Carlo dropout with heteroscedastic loss.
Two OODs, Out of Domain and Out of Distribution
A clarification of two often-confused machine-learning concepts: out-of-domain data and out-of-distribution data.
Quantile Loss in Neural Networks
A practical note on using quantile loss when point predictions are not enough, especially in business forecasting contexts.
Mastering Modern Factor Analysis
A guide to modern factor analysis practice, with attention to software defaults and older conventions that can mislead interpretation.
How to use R on Google colaboratory
A short how-to for running R on Google Colab without relying on extra browser extensions or complex setup.
Understand the capabilities of cyclic encoding
An experiment showing how cyclic encoding can represent periodic patterns, and where one-hot encoding may still be useful.
Multicollinearity understood with the simplest example
A visual, minimal example explaining how multicollinearity can distort regression coefficients and interpretation.
Kotani’s Ant Problem: Simple but counterintuitive mystery
A geometry puzzle about the farthest point on a cuboid surface, used to show how intuition can fail in simple-looking problems.
Common Misuses of Statistical Hypothesis Testing: Part 3
A discussion of why small p-values should not be treated as direct evidence of practical importance.
note
著者ページ「大雨警報」は4時間で消え、「なだれ注意報」は2か月居座る
気象庁の警報・注意報データを1年分集計し、種類ごとの継続時間や季節性、地域差を読み解いた分析記事。
TOEFL Speaking新形式の Listen & Repeat を練習できる無料サイトを作りました
2026形式の TOEFL Speaking に向けて作成した無料練習サイトの背景、機能、使い方を紹介。
Ankiで「知ってる単語をとても先に飛ばす」設定
Anki の共有デッキ学習で、既知語を効率よく後回しにして未知語へ集中するための設定メモ。
その有意差に意味はある？仮説検定のよくある勘違い
統計的仮説検定、とくに全数調査に対する有意差判断の誤用を、実務者向けに解説。
2年間の天気予報データの分析（晴れのち曇り、等の天気）
蓄積した気象庁天気予報データから、天気表現のパターンや地域・季節の傾向を分析。
2年間の天気予報データの分析（降水確率と信頼度）
過去の天気予報データを使い、降水確率と週間予報の信頼度にどのような傾向があるかを整理。
Qiita利用規約の落とし穴
エンジニア向け投稿サービスの利用規約を読み、投稿者が注意すべき権利面のポイントを考察。