Chung

Chung

A data wrangler who treats models and code like fine art — equal parts logic and caffeine. I build hierarchical forecasting models for 50,000+ time series while secretly wondering if lumpy demand is just the universe trolling me. When I’m not deciphering data, I’m scaling bouldering walls or rewatching Big Bang Theory — solving puzzles, whether in code or on rock, is basically my love language.

在德國漢堡考 Telc A2 實戰經驗分享

分享我在德國參加 TELC A2 考試的經驗,包含考試報名、當天流程、口說細節,以及最後成績與證書的取得方式。 如果你正在準備 TELC A2,希望這篇可以幫你更安心、更有方向地面對考試。 📍 考場選擇與費用 因為我目前在漢堡工作,故在漢堡參加考試,考場選擇其實很多,但價格以及口說是否安排在同一天則要看每個考場的安排。我差不多是在3月下旬開始看要報名哪一家來考試的,我最終選擇 Speakeasy Hamburg 因為我當時有點晚報名想趕快把A2拿下來,很多其它考場都要等到5月甚至6月才有,而Speakeasy Hamburg 可供選擇的考試日期很多,雖然價格比較高一些但符合我的需求,親自去考後發現考場環境也不錯。 🏫 Speakeasy(我的考場) 🏫 Volks Hochschule (VHS)(另一個選項) 🧠TELC A2 考前準備 老實說,我沒有做非常系統性的準備,但有做一件我覺得很有幫助的事情是做了約 3 回模擬試題,其實模擬試題的題型跟我當天去考試的真實題型非常類似,不管事聽力、閱讀、寫作,甚至是口說,都非常像,很具有參考價值。 模擬試題資源 建議:至少做幾回模擬題,熟悉題型對於真正考試是非常有幫助的。 如果要買書做準備的話,我看網路上有推薦”Mit Erfolg” 系列,可以參考Klett出本社: Klett- Search Result Telc Deutsch A2. 📝考試當天 必帶入考場之物品…

Python GIL, Multithreading & Multiprocessing

Preface When buying computers, we often hear often, e.g., Laptop 16 inch with i7-13700K Processor (13th Generation), 16 cores. From this, we generally know that one CPU may contain multiple cores. But what about processes and treads? In my daily…

Introduction to uv with a Python Project

An image describing whether to go for uv or venv for package management

Preface Python developers often rely on virtual environments and package managers to keep projects organized and reproducible. A recent new tool called uv has emerged as an alternative to traditional solutions like venv, virtualenv, and poetry. The earliest package release…

DFT to FFT: How the Fast Algorithm Works

DFT to FFT: How the Fast Algorithm Works

Preface When you hear the term Fast Fourier Transform (FFT), you may immediately associate it with speed, signals, and fast computations. But what exactly is FFT, and how does it relate to the Discrete Fourier Transform (DFT)? This post dives…

Setup CI with GitHub Actions for Flutter

Table of Contents Preface: the pain 🎯What is CI, and Advantages? ✅ Prerequisites 🦜Setup CI test for Flutter in GitHub Actions Step 1: Write Some Tests Step 2: Create Workflow File Step 3: Commit & Push Addition: Need to read…