Was working on my research with sklearn, but realized that choosing the right evaluation metrics was always a problem to me. If someone asks me ,”does your model performs well?” The first thing in my mind is “accuracy”. Besides the accuracy, there are a lot, depending on your own problem. Continue reading “Is your model good enough? Evaluation metrics in Classification and Regression”

# Category: Statitics

# NLP 01: Language Modeling Problems

Lecture notes from Natural Language Processing (by Michael Collins)

Continue reading “NLP 01: Language Modeling Problems”

# PGM 02: Lots of Markov Family members: MC, PMN, CRF…

##### Markov Chain

Markov Process is a kind of random process. The main idea is given the current state of the system, its future state does not depend on its past states.

Continue reading “PGM 02: Lots of Markov Family members: MC, PMN, CRF…”

# Deep Learning 10: Sequence Modeling

Learning notes for Lecture 7 Modeling sequences: A brief overview. by Geoffrey Hinton [1]

Continue reading “Deep Learning 10: Sequence Modeling”

# Deep Learning 09: Small Tricks(2)

Let’s try some ways to speedup our learning!

Continue reading “Deep Learning 09: Small Tricks(2)”

# Lucky or not: Monte Carlo Method

AlphaGo!

http://c.brightcove.com/services/viewer/federated_f9?isVid=1&isUI=1

When you play any games, probably you have strategies or experiences. But you could not deny that some times you need luck, which data scientists would say a “random choice”. Monte Carlo Method provides only an approximate optimizer, thus giving you the luck to win a game.

Continue reading “Lucky or not: Monte Carlo Method”

# Gibbs Sampling: about Parallelization

**About BN**