https://informahealthcare.com/doi/full/10.3109/03014460.2013.807878
Sequential Click Prediction for Sponsored Search with Recurrent Neural Networks
Click prediction is one of the fundamental problems in sponsored search. Most of existing studies took advantage of machine learning approaches to predict ad click for each event of ad view independently. However, as observed in the real-world sponsored search system, user's behaviors on ads yield high dependency on how the user behaved along with the past time, especially in terms of what queries
Interactive Programming in ClojureScript
I have been doing interactive programming in ClojureScript recently. After having spent some time with it, I can easily say that when I return to projects that don’t have an interactive workflow I feel like I am in the stone ages. When I say interactive programming I explicitly mean that as I make changes to a ClojureScript file, the compiled javascript makes its way to the browser so that I can s
2014年だけどファミコンのゲームを作りませんか？ #1 - アリ
ゲームを作ろうと思い立ったはいいものの、何から始めればいいんだろう…。cocos2d-xでスマホゲームを作る？Unityで3Dバリバリのゲームを作る？いまいちパッとしませんね。そうです、なんだか複雑すぎるのです。 そんなあなたにピッタリなのがファミコンのゲームです。もう30年前のハードですから、きっと単純ですって。たぶん。だって8ビットですよ。 環境構築 今回はOS Xで開発をすることにします。まずはアセンブラ、コンパイラを準備します。 アセンブラはnesasmを使います。オブログ — なあ藤村くんファミコンプログラミングをやろうじゃないか[1]を参考にmakeしてください。 コンパイラはcc65を使います。なぜコンパイラも準備するかというと、まだできる限りアセンブラを書きたくないからです。簡単なほうがいいですよね :) % brew install cc65 とりあえず動くものを書いてみ
Coping with the TCP TIME-WAIT state on busy Linux servers | Vincent Bernat
TL;DR Do not enable net.ipv4.tcp_tw_recycle—it doesn’t even exist anymore since Linux 4.12. Most of the time, TIME-WAIT sockets are harmless. Otherwise, jump to the summary for the recommended solutions. The Linux kernel documentation is not very helpful about what net.ipv4.tcp_tw_recycle and net.ipv4.tcp_tw_reuse do. This lack of documentation opens the path to numerous tuning guides advising to
SafeErlang
Uppsala Master's Theses in Computing Science 109 Examensarbete DV3 June 9, 1997 ISSN 1100{1836 SafeErlang Gustaf Naeser Computing Science Department Uppsala University Box 311 S-751 05 Uppsala Sweden Supervisor: Dan Sahlin Examiner: H� akan Millroth Passed: Abstract Erlang is a process oriented functional programming language developed for fast prototyping of soft real time distributed systems. Th
John Fremlin's blog: The mmap pattern
There are many choices in software engineering that are visible only to the developers on the project: for example, the separation of responsibilities into different parts of the program are (hopefully) invisible to the user. These choices can descend into a question of personal taste and I personally lean towards simplicity. My experience has shown that people tend to create complex generic inter
Pattern Synonyms for Dates and an IRC Bot - School of Haskell | School of Haskell
Interactive code snippets not yet available for SoH 2.0, see our Status of of School of Haskell 2.0 blog post This is intended to be an informal tutorial for pattern synonyms using dates and an IRC bot as motivating examples (we will avoid getting bogged down with details). Introduction to Pattern SynonymsPattern synonyms appeared in GHC 7.8 and allow users to abstract away from the actual impleme
Big Sky :: Golang のオフィシャルが提供するインタフェースまとめ
golang が提供するインタフェースの中で代表的な物の使い方をまとめてみる。 io.Reader type Reader interface { Read(p []byte) (n int, err error) } ご存じ io.Reader。このシグネチャの Read を実装しておけば golang のありとあらゆる入力機能に対して自分のコードを提供する事が出来る。 例えば永遠に「おっぱい」と言い続ける Reader だと以下の様な実装になる。 package main import ( "io" "os" ) var text = []rune("おっぱい") type OppaiReader struct { n int } func (r *OppaiReader) Read(p []byte) (int, error) { in := len(p) nw := 0 for i
Week 20: Making ad-hoc polymorphism less ad hoc | Swizec Teller
Senior Mindset BookGet promoted, earn a bigger salary, work for top companies Start with a free chapterGet a free chapter from the Senior Engineer Mindset book and a sample audiobook chapter, followed by a Senior Mindset 101 email course. Week 20: Making ad-hoc polymorphism less ad hoc[This post is part of an ongoing challenge to understand 52 papers in 52 weeks. You can read previous entries, her
Tweepyの2.3.0が出ました
Tweepyの2.3.0が出ました。 「Tweepy が Application-only Authentication に対応します」僕のprも取り込まれていて、 Application-only Authentication が標準で使えるようになりました。 というわけで、早速遊んでみます。 Application-only Authenticationで遊ぶ 使い方は「tweepyでApplication-only Authenticationしてみた」のときとほぼ同じ。 Tweepy本体に取り込んでもらったので、名前空間がちょこっと変わったくらいです。 Consumer Key と Consumer Secretだけ設定すればいいので、簡単に使えます。 #!/usr/bin/env python # -*- coding: utf-8 -*- import tweepy impor
Things I learned writing a JIT in Go
I was at Gophercon last week, and the last day, Saturday, was a hack day where people all sat down and just worked on projects, largely in Go. I decided on a whim to play with doing runtime code generation in Go. I’ve done some toy JIT work before in C and C++, so I’m pretty familiar with the space, and it seemed like something fun I hadn’t heard anyone playing with in Go. After a few days of hack
Go のスライスの内部実装 - Block Rockin’ Codes
History 14/05/09: Merge2 を修正しました。http://twitter.com/jbking/status/464659353945911297 Intro Go のスライスは、いわゆる LL 系の言語が持つ可変長配列の実装と似ています。 よって LL のような手軽な扱いをすることもできますが、その内部実装を知ることでより効率の良いメモリハンドリングができ、パフォーマンスを改善や、メモリーリークの防止などに繋がる可能性があります。 この辺は SWrap というライブラリを作りながら勉強したので、今回は、この Go のスライスの内部実装を解説します。 Go の配列 スライスを知るためには、まず配列について知っておく必要があります。 Go の配列は固定長のため、以下のように長さを指定して宣言します。 var arr [4]int func main() { arr =
The beauty of Haskell - Jabberwocky
I’ve been looking for a way to express how clever (too clever?) Haskell is. The combination of types, pattern matching, functional constructions, and abstract thinking (stopping just short of calling it ‘math’) allows all kinds of manipulations, which inspire the same feeling of awed appreciation in me than math proofs did back in my university days. One example which illustrates this beautifully
lens: from the ground up
A look at functional lenses in general, and the haskell "lens" library specifically. This talk walks through why lenses are encoded the way they are, and builds up to demonstrations of the lens library. The demonstration code is available at https://github.com/markhibberd/lens-talk (see script.org and src/*.hs)
Overloaded record fields for Haskell | SkillsCast
With the increasing use of Haskell for real-world applications, the records system has been a frequent source of frustration to Haskell programmers working on large projects. In particular, an inability to reuse field names across different datatypes leads to awkward ad-hoc naming. There have been many complaints over the years, and designs for better systems proposed, but no concrete progress on
Welcome to Python for you and me — Python for you and me 0.5.beta1 documentation
Welcome to Python for you and me¶ This is a simple book to learn Python programming language, it is for the programmers who are new to Python. You can find the latest version of the book here. If you are new to command line in Linux, you can read lym. Contents: pym is a book to learn Python. It targets people who are completely new to the language. Feedback is greatly appreciated. If you have any
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http://pasberth.github.io/slide/shumatsu-lambda/