<The Fine Art of Small Talk> by Debra Fine A interesting book to help introvert and shy person to enjoy the fun of small talk in business. It's more of a skill that can be trained than a born gift. <今日简史 21 Lessons for the 21st Century> by Yuval Noah Harari Although this book [...]
I just tried and successfully installed MongoDB Tutorial to Ubuntu22.04 system. Please find my short tutorial below. Source 1 Use the following link to go to a great tutorial from end to end (in between there is a short fix that needs another resource later) REMEMBER to include 'sudo' command when necessary https://wiki.crowncloud.net/How_To_Install_Duf_On_Ubuntu_22_04?How_to_Install_Latest_MongoDB_on_Ubuntu_22_04 Source 2 Code [...]
In professional environment, there are a lot of tasks that either require a Excel file as source, or one as a delivery, and most of time we ourselves have minimized the workload to an extent that it has become a daily boring task. What if I tell you there is a way to potentially [...]
MySQL 'group by' together with 'partition by' Online MySQL Database create table Test(cc varchar(25), item varchar(100), num integer); insert into Test(cc, item, num) values('ca', '8.1.4', 11); insert into Test(cc, item, num) values('cn', '8.1.1', 1); insert into Test(cc, item, num) values('cn', '8.1.4', 15); insert into Test(cc, item, num) values('cn', '8.1.3', 5); insert into Test(cc, item, [...]
Prologue This blog only serves as keeping my thoughts and notes at one place so that they'd be easier to retrieve when I need them. As expected, key words and random thoughts can spread everywhere and I will try keeping them organized to the best I can. I have seen so many times when [...]
I just came across a very insightful article about the status quo of common understanding of the hype in Machine Learning. The author uses analogy of chef and kitchen appliance to compare with Machine Learning in business and in research. Nowadays people and companies are passionate about the development of 'kitchen appliance' while ignoring what they [...]
Introduction There are mainly 2 types of DS interview questions you'll meet with: 1. Technical and 2. Business. For technical questions, you'll be asked about Brainteasing (quickly solve a math problem), Machine Learning (how do you deal with overfitting?), or Database related case questions. For business questions, be prepared for Estimation, Data Strategic, or [...]
The CIRCLES for Product Design Comprehend the situation Identify the customer Report the customer's need Cut, through prioritization List solutions Evaluate Trade-offs Summarize your recommendation Mocked Case Examples and Feedback "How to improve Facebook Marketplace?" Structured Answer: C - FB Marketplace is a platform where people discover, buy and sell items with their community [...]
Hi all, I just bought a new VPS from Vultr.com, and I’d like to share my experience with you!
GGplot实操100练