Yesterday, I attended this seminar, “An Introduction mathematics for all programmers”. This seminar was held to exchange information each other who come from various types of fields. I gave a presentation about AutoEncoder which is used in DeepLearning recently. I thought it is very attractive theme itself, but because of my lack of presentation... Read more 31 Jan 2015 - 2 minute read
When you create SecurityGroup on AWS, there is a point you have to care. Security group can control access list listed as IP addresses. These values are retained as Inbound and Outbound format. Inbound shows that this security group can receive package from described IP addresses. Outbound is the contrary. So if you missed the configurati... Read more 28 Jan 2015 - less than 1 minute read
I obtained HHK Pro2 Type-S US version. This is the keyboard which I long for a long time. Typing touch is very light. So you won’t be tired even if keep typing long document or programs. In addition to this, the sound of typing is very low. I heard that normal HHK Pro2 is a little noisy when you do strong typing. Type-S is not the case.(B... Read more 26 Jan 2015 - less than 1 minute read
I received pull request from Bill Warner. He writes unittest which used test-kitchen and RSpec. This pull request is a great resource for me because I didn’t know how to write test code for cookbook. There are a lot of things I can obtain. I cannot say thank you enough. And I always glad to receive PR from anyone, anytime. So after merging it... Read more 25 Jan 2015 - 1 minute read
From Spark 1.2.0, it seems to be different from older version when you want to run your spark job on your local machine. Before v0.9.2 you can run standalone job with such code. /*** SimpleApp.scala ***/ import org.apache.spark.SparkContext import org.apache.spark.SparkContext._ object SimpleApp { def main(args: Array[String]) { val logF... Read more 23 Jan 2015 - 1 minute read