What is an Environment Variable? An environmental variable is a dynamic object containing an editable value, which can be used by one or more programs. Environmental variables help programs know what directory to install files, where to store temporary files or where to find user profile setting. They help shape the environment the programs use…
Author: Huasa
How to Set Up Virtual Environment in Python?
United States COVID-19 Tracker Dashboard Created by Power BI
Simple Airline Ticket Reservation System Using SQL server Transaction & Stored Procedure
In this article, we’ll go through the design logic and steps to build a simple airline ticket reservation system by the help of transaction and stored procedure in SQL server.
Learning SQL: What I learned after 100 LeetCode SQL questions
Building Effective Thinking Framework During the practicing process, I recorded my mistakes and studied how to make my solution more effective. I summarized them all and built up a thinking framework (or flow chart of SQL queries) which include the following essential decision points.
‘Secrets of Millionaire Mind’: What is your primary motivation for success?
IF YOUR MOTIVATION FOR ACQUIRING MONEY OR SUCCESS COMES FROM A NONSUPPORTIVE ROOT SUCH AS FEAR, ANGER, OR THE NEED TO ‘PROVE’ YOURSELF, YOUR MONEY WILL NEVER BRING YOU HAPPINESS.
Learning SQL: Differences between JOIN types and Common Questions You have
For SQL learners, it is important to understand the concepts and differences between several JOIN types. A SQL JOIN statement is used to combine data and rows from two or more tables based on a common field between them. Let’s start with a classical venn diagram from C.L. Moffat, which clearly show the differences between…
我從TechStyle Media Mix專案學到什麼？
TechStyle專案的挑戰 在冬季學期，我們迎來第一個企業合作的專案，我們這組被分到的專案是TechStyle Media Mix，目標是優化Facebook廣告投放的效率。TechStyle是一間實施「會員訂閱制」的網路時尚服飾公司，2010創立以來，旗下有5個服飾品牌，5百萬活躍的會員，年營收7億，旨在利用電腦科技、數據科學、個人化服務打造一個增進客戶體驗的網路銷售平台。這次我們分析的是Fabletics品牌，主打女性運動服飾，熱銷的產品是運動緊身褲。
什麼是資料探勘(Data Mining)？
什麼是資料探勘？ 資料探勘是在較大量的資料中尋找模式的過程，使用一系列跨領域的方法包括統計學、機器學習和資料庫。他是一個跨領域的學科，目的是透過一系列的方法，在資料庫中發掘有價值的資訊，轉化成可以理解的結構，提供未來決策使用。資料探勘不是一個單一的動作，而是一個系統性的「資料庫知識發現」的流程，包含原始資料分析、資料預處理、建模、推論、解釋、視覺化 ，資料探勘的實務工作是以半自動化、或自動化分析大規模的資料，以提取未知的、有價值的潛在資訊。