nicolamontecchio

typedef struct _FloatMatrix {
  uint32_t N;
  uint32_t M;
  float *data;
} FloatMatrix;


/* read matrix from tsv file */
/* matrix is allocated, will need to be freed */

nicolamontecchio

def nesterov_optimizer(g, w0, alpha, mu):
    dim = w0.shape[0]
    w = w0
    v = np.zeros(dim)
    while True:
        yield w
        v = mu * v - alpha * g(w + mu * v)
        w = w + v

nicolamontecchio

# groups of `size` from an iterable `seq`
def group(seq, size):
    it = iter(seq)
    while True:
        values = []
        try:
            for n in xrange(size):
                values.append(it.next())
            yield values
        except:

nicolamontecchio

import numpy as np
from sklearn.cross_validation import train_test_split
from sklearn.linear_model import SGDClassifier
from sklearn.metrics import precision_recall_curve


dfp = PATH_TO_FILE_HERE # format is csv with itemid,label,features

def readff(fpath):
    trids, labs, feats = [], [], []

nicolamontecchio

;; route destructuring
(POST "/login" {post-params :params session :session}  (page-login-post post-params session))

;; session update
(assoc (response (html "whatever...") :session (assoc session :userid uid)))

;; show request map:
(GET "/profile" reqmap (str reqmap))

nicolamontecchio

;; zip sequences:
(map vector v1 v2 v3 ...)

nicolamontecchio

find . -name "*.dat" -exec cat {} \; > filename

nicolamontecchio

;; ;; config using mac-port of emacs,
;; ;; see https://github.com/railwaycat/emacs-mac-port

;; ;; mac switch meta key
(setq mac-option-modifier 'meta)
(setq mac-command-modifier 'hyper)

(setq package-archives '(;;("gnu" . "http://elpa.gnu.org/packages/")
                         ;;("marmalade" . "http://marmalade-repo.org/packages/")
                         ("melpa" . "http://melpa.milkbox.net/packages/")))

nicolamontecchio

#include <Python.h>

static PyObject* say_hello(PyObject* self, PyObject* args)
{
  const char* name;

  if (!PyArg_ParseTuple(args, "s", &name))
    return NULL;

  printf("Hello %s!\n", name);

nicolamontecchio

package com.nicolamontecchio.chroma;

import java.io.*;
import javax.sound.sampled.*;

/**
 * Read an audio file. Provided that the appropriate packages are in the classpath, mp3 and ogg should be readable too. The safest route is to read from a MONO, WAV file.
 */
public class AudioReader {