cindywu

machine learning systems

by jeff smith

part 1: fundamentals of reactive machine learning

chapter 1: learning reactive machine learning

• introducing the components of machine learning systems
• understanding the reactive systems design paradigm

cindywu

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cindywu

// import Tokenizer and HasingTF... you might need IDF later?
import org.apache.spark.ml.feature.{HashingTF, IDF, Tokenizer}
// import Pipeline
import org.apache.spark.ml.Pipeline

// 4.1 extracting features

def extract(rawData: RawData): Feature = ???

// 4.2 extracting word features from squawks

cindywu

(define board '(1 2 3 4 5 6 7 8 9))

(define win-combos '((1 2 3) (4 5 6) (7 8 9) (1 4 7) (2 5 8) (3 6 9) (1 5 9) (3 5 7)))

(define (won win-combos board)
  (cond
    ((null? win-combos)#f)
    ((equal? '(x x x) (returncombostate (car win-combos) board)) #t)
    ((equal? '(o o o) (returncombostate (car win-combos) board)) #t)
    (else

cindywu

(define board '(1 2 3 4 5 6 7 8 9))

(define win-combos '((1 2 3) (4 5 6) (7 8 9) (1 4 7) (2 5 8) (3 6 9) (1 5 9) (3 5 7)))

(define (won win-combos board)
  (cond
    ((null? win-combos)#f)
    ((equal? '(x x x) (returncombostate (car win-combos) board)) #t)
    ((equal? '(o o o) (returncombostate (car win-combos) board)) #t)
    (else

cindywu

# new_game = TicTacToe.new
# new_game.play
class TicTacToe
  def initialize(board = nil)
    @board = ["1", "2", "3", "4", "5", "6", "7", "8", "9"]
  end

  def display_board(board)
    puts "|#{board[0]}|#{board[1]}|#{board[2]}|"
    puts "|#{board[3]}|#{board[4]}|#{board[5]}|"

cindywu

;server
(defparameter my-socket (socket-server 4321))
(defparameter my-stream (socket-accept my-socket))

;client
(defparamenter my-stream (socket-connect 4321 "127.0.0.1"))
(print "Yo Server!" my-stream)

;client recieves
(read my-stream)

cindywu

(defun guess-my-number()
  (ash (+ *small* *big*) -1))

(defun smaller ()
  (setf *big* (1- (guess-my-number)))
  (guess-my-number))

(defun bigger ()
  (setf *small* (1+ (guess-my-number)))
  (guess-my-number))

cindywu

(define answers
  '("It is certain."
    "It is decidedly so."
    "Without a doubt."
    "Yes -- definitely."
    "You may rely on it."
    "As I see it, yes."
    "Most likely."
    "Outlook good."
    "Yes."

cindywu

; this works!
; (crackle-pop 15) returns 1514131211109876543210
(define (crackle-pop n)
  (display n)
  (if (> n 0) (crackle-pop (- n 1))))

; show crackle if divisible by 3
; (crackle-pop 15) returns Crackle1413Crackle1110Crackle87Crackle54Crackle21Crackle
(define (crackle-pop n)
  (if (= 0 (remainder n 3))