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@xeoncross
xeoncross / smoothing.go
Created February 9, 2017 18:37
Peak detection "Smoothed z-score algo" (in Golang) from http://stackoverflow.com/a/22640362/99923
/*
Settings (the ones below are examples: choose what is best for your data)
set lag to 5; # lag 5 for the smoothing functions
set threshold to 3.5; # 3.5 standard deviations for signal
set influence to 0.5; # between 0 and 1, where 1 is normal influence, 0.5 is half
*/
// ZScore on 16bit WAV samples
func ZScore(samples []int16, lag int, threshold float64, influence float64) (signals []int16) {
//lag := 20
@klzgrad
klzgrad / 00-README.txt
Last active April 19, 2024 09:26
DNS compression pointer mutation
$ LD_PRELOAD=$PWD/sendmsg.so dig twitter.com @8.8.8.8
;; Warning: Message parser reports malformed message packet. <-- malformed 因为把压缩指针当作域名一部分了
;; Question section mismatch: got twitter.com/RESERVED0/CLASS256
; <<>> DiG 9.9.5-3-Ubuntu <<>> twitter.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44722
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
package main
import (
"net/http"
"database/sql"
"fmt"
"log"
"os"
)
@trcarden
trcarden / gist:3295935
Created August 8, 2012 15:28
Rails 3.2.7 SSL Localhost (no red warnings, no apache config)
# SSL self signed localhost for rails start to finish, no red warnings.
# 1) Create your private key (any password will do, we remove it below)
$ openssl genrsa -des3 -out server.orig.key 2048
# 2) Remove the password
$ openssl rsa -in server.orig.key -out server.key
@nebiros
nebiros / Gemfile
Created May 23, 2012 15:58
rails + unicorn + rbenv + init.d daemon
group :production do
gem "unicorn"
end
@biti
biti / haml_vs_erb_vs_erubis.rb
Created June 25, 2011 10:13
erb,erubis,haml的性能比较.结果:haml不靠谱
# encoding: utf-8
require 'rubygems'
require 'haml'
require 'erb'
require 'erubis'
notes = []
20.times { notes << {:title => "标题标题", :content => "内容,内容"} }
obj = {