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@nioto
nioto / PiCameraStream
Created March 4, 2014 10:14
Simple MJpeg streamer for Raspberri Pi Camera
#!/usr/bin/python
'''
A Simple mjpg stream http server for the Raspberry Pi Camera
inspired by https://gist.github.com/n3wtron/4624820
'''
from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer
import io
import time
import picamera
@rezoo
rezoo / caffe.md
Last active November 4, 2021 15:28

Caffe tutorial

この文章ではCNN実装であるCaffeを用いて,特徴ベクトルの抽出やパラメータの学習を行うための方法について説明する.

Caffeでサポートされている機能

以下の作業を行いたいのであれば,Caffeを用いることが望ましい.

  • CNNを利用した画像の多クラス分類
  • CNNによる特徴ベクトルの抽出
  • CNNの転移学習
  • Stacked Auto Encoder
@TheSeamau5
TheSeamau5 / EntityComponentSystemExploration.md
Created December 29, 2014 23:16
An exploration of the Entity Component System in Elm

#Exploring Entity Component Systems in Elm

Entity-Component-System (or ECS) is a pattern for designing programs that is prevalent in the games industry. This pattern consists of three simple parts:

  • Entity : A uniquely identifiable object that may contain any number of components
  • Component : A property usually representing the raw data of one aspect of the object. (Position is a component, Velocity is a component, Strength is a component, etc...)
  • System : A continuous process performing actions on every entity that possesses a component of the same aspect as that system

To understand this, let us try to make a simple example: Boxes that move in space:

@nulltask
nulltask / 20150114-introduction-of-handy-library-for-web-workers.md
Last active May 4, 2020 11:38
Web Worker をちょっと便利にするライブラリのご紹介
@domenic
domenic / 0-github-actions.md
Last active June 6, 2025 08:01
Auto-deploying built products to gh-pages with Travis

Auto-deploying built products to gh-pages with GitHub Actions

This is a set up for projects which want to check in only their source files, but have their gh-pages branch automatically updated with some compiled output every time they push.

A file below this one contains the steps for doing this with Travis CI. However, these days I recommend GitHub Actions, for the following reasons:

  • It is much easier and requires less steps, because you are already authenticated with GitHub, so you don't need to share secret keys across services like you do when coordinate Travis CI and GitHub.
  • It is free, with no quotas.
  • Anecdotally, builds are much faster with GitHub Actions than with Travis CI, especially in terms of time spent waiting for a builder.
@koseki
koseki / too-many-markers.md
Last active June 8, 2021 05:35
Google Maps に大量のマーカを表示する

Google Maps に大量のマーカを表示する - Too Many Markers!

のメモです。

Introduction

Some applications are required to display a large number of locations or markers. Despite the v3 JavaScript API's significant improvement to performance, naively plotting thousands of markers on a map can quickly lead to a degraded user experience. Too many markers on the map cause both visual overload and sluggish interaction with the map.

@mizchi
mizchi / フロントエンドを楽にするために.md
Last active June 21, 2025 08:07
フロントエンドを楽にするために

フロントエンドを楽にするために

Qiitaを支えたい技術 at 時雨祭

About

  • HN: mizchi
  • Qiitaの方からきました(入社半年たったらしい)
  • Reactオジサンはそろそろ飽きてきた
  • Angularに興味が無いのでこっちにきた
@justinwoo
justinwoo / using-rxjs-instead-of-flux-with-react.md
Last active October 21, 2023 10:16
Using RxJS instead of Flux with React to organize data flow

Reposted from Qiita

For almost a year now, I've been using this "flux" architecture to organize my React applications and to work on other people's projects, and its popularity has grown quite a lot, to the point where it shows up on job listings for React and a lot of people get confused about what it is.

Why I'm tired of using and teaching flux

There are a billion explainations on the internet, so I'll skip explaining the parts. Instead, let's cut to the chase -- the main parts I hate about flux are the Dispatcher and the Store's own updating mechanism.

If you use a setup similar to the examples in facebook/flux, and you use flux.Dispatcher, you probably have this kind of flow:

@stephensauceda
stephensauceda / gulpfile.babel.js
Created June 11, 2015 23:45
ES6 Gulpfile Example
/*
* Steps
* 1. Rename your gulpfile.js to gulpfile.babel.js
* 2. Add babel to your package.json (npm install -D babel)
* 3. Start writing ES6 in your gulpfile!
*/
import gulp from 'gulp'; // ES6 imports!
import sass from 'gulp-sass';
@paulirish
paulirish / what-forces-layout.md
Last active October 26, 2025 14:01
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent