yankov

require 'rubygems'
require 'redis'
require 'redis/distributed'

r = Redis::Distributed.new %w[redis://host1:6379 redis://host2:6379]

# show node for key "foo"
p r.node_for("foo")

# set the value of "foo"

yankov

# Avazu CTR prediction
# SGD Logistic regression + one hot encoder. Score: 0.414
import pandas as pd
import numpy as np
from datetime import datetime, date, time
from OneHotEncoderPartial import OneHotEncoder
from sklearn.linear_model import SGDClassifier

cols = ["C1","banner_pos","site_category", "device_type","device_conn_type","C14","C15","C16","C17","C18","C19","C20","C21", "hour"]

yankov

# Avazu CTR prediction
# SGD Logistic regression + hashing trick.

import pandas as pd
import numpy as np
from datetime import datetime, date, time
from sklearn.linear_model import SGDClassifier
from sklearn.feature_extraction import FeatureHasher
from sklearn.preprocessing import LabelEncoder

yankov

from scipy import sparse


class OneHotEncoder():
    """
    OneHotEncoder takes data matrix with categorical columns and
    converts it to a sparse binary matrix doing one-of-k encoding.

    Parts of code borrowed from Paul Duan (www.paulduan.com)
    Licence: MIT (https://github.com/pyduan/amazonaccess/blob/master/MIT-LICENSE)

yankov

import com.datastax.driver.core._

val cluster = Cluster.builder.addContactPoint("127.0.0.1").build
val session = cluster.connect

// http://www.datastax.com/documentation/developer/java-driver/1.0/webhelp/index.html#java-driver/quick_start/qsSimpleClientAddSession_t.html
session.execute("CREATE KEYSPACE simplex WITH replication " + 
      "= {'class':'SimpleStrategy', 'replication_factor':3};");
      
session.execute(

yankov

val topic = "urls"
val props = new Properties()
props.put("broker.list", "0:localhost:9092")
props.put("serializer.class", "kafka.serializer.StringEncoder")
val config = new ProducerConfig(props)
val producer = new Producer[String, String](config)

val data = new ProducerData[String, String](topic, href)
producer.send(data)
     

yankov

package week7

class Pouring(capacity: Vector[Int]) {
  // States

  type State = Vector[Int]
  val initialState = capacity map (x => 0)

  // Moves

yankov

mkdir project1
cd project1

sbt
set name := "project1"
set version := "1.0"
set scalaVersion := "2.9.3"
session save
exit

yankov

a = new A();
b = new a.B();

// how in 'b' have a refference to 'a'? 

yankov

function A(name) {
  this.name = name;
}

A.prototype.b = function(lastName) {
  this.lastName = lastName;
  console.log(this.name + " " + this.lastName);
}

a1 = new A("Howard");