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Marius Cobzarenco mcobzarenco

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@mcobzarenco
mcobzarenco / Order by time.cpp
Last active August 29, 2015 14:08
Order by time without duplicates
inline int64_t get_monotonous_click() {
static std::atomic<int64_t> last_click{0};
int64_t timestamp{
std::chrono::system_clock::now().time_since_epoch()
/ std::chrono::microseconds(1)};
int64_t old_click{last_click.load()};
int64_t new_click{0};
do {
new_click = std::max(timestamp, old_click + 1);
@mcobzarenco
mcobzarenco / gist:cc23946abb41b1a182f2
Created December 8, 2014 18:00
template<typename Scalar>
struct ImmutableParams {
std::vector<Eigen::Map<const DynamicMatrix<Scalar>>> W;
std::vector<Eigen::Map<const DynamicVector<Scalar>>> b;
};
template<typename Scalar>
struct MutableParams {
std::vector<Eigen::Map<DynamicMatrix<Scalar>>> W;
std::vector<Eigen::Map<DynamicVector<Scalar>>> b;
@mcobzarenco
mcobzarenco / Move CTR Bench.cpp
Created January 13, 2015 15:49
#include <chrono>
#include <iostream>
#include <vector>
using namespace std;
template<typename T>
uint64_t time_it_us(const T& t) {
auto begin = std::chrono::high_resolution_clock::now();
@mcobzarenco
mcobzarenco / gist:17eaa35996c13a857ae9
Created February 17, 2015 15:32
Verifying that +anih is my openname (Bitcoin username). https://onename.com/anih
@mcobzarenco
mcobzarenco / entity.capnp
Created July 14, 2015 12:51
Capnp for a knowledge base
struct Entity {
type @0 :EntityType;
union {
id @0 :Text;
blob @1 :Text;
text @1 :List(Text);
}
}
@mcobzarenco
mcobzarenco / join_triples.erl
Created August 3, 2015 10:57
MapReduce Riak job for doing a join
emit_left_id(Obj, _, TargetBucket) ->
try
Key = riak_object:key(Obj),
Triple = mochijson2:decode(riak_object:get_value(Obj)),
case proplists:get_all_values(<<"left_id_s">>, element(2, Triple)) of
[Id] -> [{{{<<"maps">>, TargetBucket}, Id},
{{<<"maps">>, TargetBucket}, Id, Key, Triple}}];
_ -> []
end
catch
@mcobzarenco
mcobzarenco / gist:502a220eb29d29889b3c
Created September 26, 2015 20:07
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCtitJ/uiynqT9VxZZfos7c0INrzJEWq306QRenZ3Za5zZfZs50b1P1qgcvQKrrX/3EP1KZ5b1QXOjoPovaIIYoiNuNaBJYYHRK+EcjxDlFt/EsBgEQHxZyEp8J7ss3pfDuwS0QxUOFA7ABDJieS7O5GXfNfEqwZ6w4Ttpjwpg2fMihN9MZ0/3Rk2PSKNxfH5kYrwKY/rauZIjDmC/vDf0qwjDZy6W6M2HnOy5NlcGduQJv+ixdY4yMlY5XTZg6ymoBCOu4daKxmQb+YRl+wy/0/o/kjhyElF+nJXnwgyUniQUFMpPJeNyI9Xq3w7XDpaiJVL3GwXyP36PTCX3t2TXf marius@reinfer.io
@mcobzarenco
mcobzarenco / EURUSD
Created April 15, 2013 11:30
{
"metadata": {
"name": "Untitled1"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
@mcobzarenco
mcobzarenco / Power Law Plotting for Facebook Data.py
Created June 26, 2013 12:02
Power Law Plotting for Facebook Data
SCALE = 0.1
XMIN = 820
GAMMA = 3.63719
fb_ccdf = ccdf(degs)
xs = array(fb_ccdf[0][500:])
power_law = array(xs / XMIN) ** (-GAMMA + 1) * SCALE
@mcobzarenco
mcobzarenco / riaktool error
Created November 10, 2013 18:46
➜ riakpp git:(master) build/release/src/riaktool -m 10000 -k 10000
[0] riaktool.cpp:81:main: Creating connection pool...
[0] riaktool.cpp:85:main: Buffering messages...
[0] riaktool.cpp:109:main: Buffered 0 messages.
[0] riaktool.cpp:109:main: Buffered 500 messages.
[0] riaktool.cpp:109:main: Buffered 1000 messages.
[0] riaktool.cpp:109:main: Buffered 1500 messages.
[0] riaktool.cpp:109:main: Buffered 2000 messages.
[0] riaktool.cpp:109:main: Buffered 2500 messages.
[0] riaktool.cpp:109:main: Buffered 3000 messages.