Monthly Archives: April 2017

How to install New Relic Agent in Google App Engine Flexible Environment

New Relic provides Application Performance Monitoring (APM) for a lot of platforms (AWS, Heroku, etc.) and frameworks (Symphony, Magento, etc.), but there is no much information on the internet so far about steps to install New Relic Agent in Google … Continue reading

Posted in CS Research&Application, Uncategorized | Tagged , , , , , , | Leave a comment

Client Side Cache vs Server Side Cache

Client side caches are usually used to avoid transferring the same data over the network repeatedly. It can reduce network traffic and latency, then help users save money especially when they are paying for the data. Server side caches are … Continue reading

Posted in CS Research&Application, Uncategorized | Tagged , , | Leave a comment

Make it work first, don’t over engineering

Nowadays, Test Driven Development (TDD) is so popular that software engineers are a group of people full of curiosity and spend a lot of time on learning and testing, like unit testing, integration testing and system testing. They design the test … Continue reading

Posted in CS Research&Application, IT, Uncategorized | Tagged , , , , , | Leave a comment

Machine Learning Podcast Learning Notes Apr 18

1. Support Vector Machine (SVM): draw a fat line, like a wall, to classify data set into different categories, dots are support vector and it is used to solve over-fitting problem (vs logistic regression).   Non-linear data set can be … Continue reading

Posted in CS Research&Application, Uncategorized | Tagged , | Leave a comment

Machine Learning Podcast Learning Notes Apr 17

Shallow algorithms Supervised KNN Decision Trees (supervised, classify/regress) Random Forests Unsupervised K-means -> Clustering Apriori -> Association rule learning / Market basket Principle Component Analysis (PCA) -> Dimension Reduction Gradient Boost Buy me a coffee with PayPal and you will have more professional and … Continue reading

Posted in CS Research&Application, Uncategorized | Tagged , , , | Leave a comment

Object Oriented Design Tips – State Machine

For some problems (like vending machine), it can be tackled by object oriented design with State Machine. A state machine, also named as finite-state machine (FSM) or finite-state automation (FSA), finite automation, is a mathematical model of computation. It simulates … Continue reading

Posted in CS Research&Application, Uncategorized | Tagged , , | Leave a comment

Machine Learning Podcast Learning Notes Apr 13

Steps Data mining -> Data analysis -> Machine Learning   Math Linear Algebra (Matrix) -> Statistics (Probability/inference) -> Calculus Linear Algebra = Matrix (or “Tensor”) math. Wx + b. Chopping in the analogy. Stats = Probability/inference, the heart of machine … Continue reading

Posted in CS Research&Application, Uncategorized | Tagged , , , | Leave a comment