Traditional databases have been existing for decades, SQL has become one of the most popular languages in the world. No matter you are front-end or back-end, SQL seems to be a MUST to known skill set. As web/mobile app development grows, the traditional relational database cannot satisfy the requirements anymore…

Natural language processing(NLP) is one of the key area of machine learning/deep learning. Chatbot, is the most common and mature application of NLP in real life. It successfully reduce operating cost by replacing real human for interacting with customer to give them the information they want. Nowadays, there are different…

For most people, when they first time encountered “Operational Research”, they do not know what it means. Research on how to operate staff? To give simple explanation, it is research for “optimisation”, in other words, science for “better”. First, we will introduce 3 basic types of Optimisation. Then we will…

We are in the era of “Data”. No matter what departments you are in within an organisation, from sales, marketing to development, machine learning…… Data is everywhere. Concept of data warehousing(DW) has been invented for decades, to assemble all the data into one single point of place. Moving data from…

Web scraping is probably the FIRST project of a lot of developers or data scientist. You can practice the language just learned and it will generate “data” for later projects. There has been tons of tutorials out there teaching how to scrape via Python, and some other languages. However, when…

Developing a web application, either a website or web API, is becoming more and more easy nowadays. There are plenty of choices in terms of languages, PHP, Python, Ruby, Java, C#, Go, JavaScript(Node.js) etc. However, once the development is done on the local machine, deployment to servers could be a…