Archive for the ‘technology’ Category

Klout and basic categorization ML approach

July 12, 2010 Leave a comment

The classical Machine Learning problems called categorization or clustering is not only academically beautiful but also practically efficiency. The behind motivation is simple, “tell me who your friend are I will tell who you are”.There are a number of algorithms: Naive Bayes, SVM i.e.

The Klout scoring problem is similar yet the answer is slightly different. It scores your influence based on what you read, what you tweet/retweet other than who are you following.

I now focus on a number ways to compute klout score based on clustering/classification ML approach.

Categories: technology

why twitter call it SnowFlake

July 12, 2010 Leave a comment

the name told its meaning.

There is a theorem states that there is not existed two identical snow flake, neither the sequence ID in the database.This is the first reason.

The second reason is the way they generate the sequence ID. The snow flake generated by the combination of various conditions: wind, temperature, moisture, atmosphere and so on. All these conditions are geographical and time factors, so are the sequence ID.Twitter generate the sequence ID based on server I and the generated ID.

This is the old trick for yet a new problems.

More on the k-sorted algorithm later.

Categories: technology