James's Blog

Ah car crashIn Sept 26th, I had my first ever car accident. It was a rainy afternoon at 5:19pm. My gf and I were driving to Newmarket to try out the new restaurant called Katsu Katsu. I was driving straight as the other car crashed into me on the right. The speed wasn’t too fast but it is a car crash :(So how to I feel at that time? It was umm blank. Yes my brain literally went blank at that moment as I never thought this would happen in my life. It felt like my eyes saw that car crash into me ...

Oct 27th, 2022. Remember this date. Maybe this is my last exam ever…. COMPSCI 753: Algorithm for Massive data HARD AS exam. 2.5 hours exam and I wrote 10 pages of answers…. UPDATE: Result is out!!!!See the picture below As you can see I got 87, not a bad grade though hehe. I am satisfied about this. And the best thing is, I got A+ for this course! Let’s see what will happen in the near future ; )

OverviewThis particular article introduce the prior knowledge of design pattern. For more detail explanation, please read later posts on design pattern. It is important to learn those design pattern to become a good software engineer. So, lets get started. In the first section, we focus on the 7 principles of software designs. Then, in the second section, we would briefly introduce the three categories of the design pattern. We would gain overall control of the design pattern in a certain level ...

It has been a long time since the last update xD. TIme to pick up some learning and blogging : )

Vim basicsi for inserthjkl for directionsa for go to the first positionshift a for go to the end of the lineg for go to the start of the fileshift g for go to the eof and there is more…

MotivationSince we cannot store alllll the stream, we store a uniform sample of the stream to answer queries Goal Choose small number to keep in memory out of large number of elements Sample single elements from the stream uniformly at random Same probability of the sample to be chosen Draw sample over the stream, not the universe Two sampling problems P1: Sample a fixed proportion of elements in the stream AND the sample size is m/10 given the stream of m elements P2: Maintain a random s ...

Notes taken from this video Good architecture is importantStart from a story: 2 architects John and Jane both working on a building but in two different style. John is an expert in classic architecture building, He keeps pushing the boundary of architectural design using cutting edge technologies. He uses all of his favorite tools. His design is elegant yet state of the art. Once he finished the design, he just hand that to the crew and move on for his next masterpiece. Once the building is fi ...

Ok toastmasters This week toastmaster is a demo night. So more people coming and we got better food (2m long pizzas!) Today I got a chance to talk about what things that I can teach to the audience. I did what I think worse than last week because I started talking about coding and end up with something different. I need to structure my entire idea of the talk before I start it. Meanwhile, we had a guy who stand there and remain slient for a while… He had to take a seat and process until he is r ...

Just had a first meeting with the new project executives. Good ideas come out from them Say goodbye to Mr.Jason Ko : ( Projects are there for the students who can gain the MOST knowledge from it.Need to think about a more structured way for the project workflow.