hakomo

// Topcoder Server の時間計測は rdtsc 以外壊れています
// 以下のコードで正しく時間計測ができます
// サブミットするときに #define LOCAL を消してください
#define LOCAL

#ifdef LOCAL
#include <chrono>
inline double getTime() {
    using namespace std::chrono;
    return duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count() / 1000.0;

halegreen

from datetime import datetime
from csv import DictReader
from math import exp, log, sqrt,pow
import itertools
import math
from random import random,shuffle,uniform,seed
import pickle
import sys

seed(1024)

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

kalaidin

import numpy as np
from math import exp, log

"""
SGD for logistic loss + factorization machines
The code follows this paper:
[1] http://www.ics.uci.edu/~smyth/courses/cs277/papers/factorization_machines_with_libFM.pdf
"""

def sigmoid(x):