juliensimon

public static <T> boolean linearSearch(List<T> list, T t, LinearSearchMode<T> mode) {
    if ((list == null) || (t == null)) {
        return false;
    }
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).equals(t)) {
            if (mode != null) {
                mode.moveElement(list, i);
            }
            return true;

juliensimon

public class LinearSearchModeFactory<T> {
    public static final int modeMoveFirst = 1;
    public static final int modeMoveLast = 2;
    public static final int modeMoveUp = 3;
    
    public static <T> LinearSearchMode<T> build(int mode) {
        switch (mode) {
            case modeMoveFirst:
                return new LinearSearchModeMoveFirst<T>();
            case modeMoveLast:

juliensimon

public interface LinearSearchMode<T> {
	public void moveElement(List<T> list, int index);
}

class LinearSearchModeMoveFirst<T> implements LinearSearchMode<T> {
	@Override
	public void moveElement(List<T> list, int index) {
		// Move element to the front of the list
		T t = list.remove(index);
		list.add(0, t);

juliensimon

	// This is equivalent to: linearSearch(list, t, build(modeMoveFirst))
	public static <T> boolean linearSearchMoveFirst(List<T> list, T t) {
		return linearSearch(list, t, 
			((List<T> l, int index) 
			-> { T elem = l.remove(index); l.add(0, elem); } ));
	}

	// This is equivalent to: linearSearch(list, t, build(modeMoveLast))
	public static <T> boolean linearSearchMoveLast(List<T> list, T t) {
		return linearSearch(list, t, 

juliensimon

lastname, firstname, gender, state, age, month, day, hour, minutes, items, basket
CROFFORD,LON,M,New Hampshire,75,4,41,17,15,3,824
BLANZY,MARLON,M,Kansas,86,12,112,6,36,4,1468
GILKEY,PALMER,M,South Carolina,86,5,16,5,53,7,2100
INSOGNIA,KATERINE,F,U.S. Virgin Islands,76,2,299,21,4,9,2664
CERVA,BOB,M,California,35,7,157,23,35,5,1101
SHAHBAZ,KATHRINE,F,American Samoa,78,10,48,7,51,4,1210

juliensimon

COPY mydata from 's3://jsimon-logs/data.txt' 
CREDENTIALS 'aws_access_key_id=ACCESS_KEY_ID;aws_secret_access_key=ACCESS_KEY 
DELIMITER ',' 
REMOVEQUOTES 
REGION 'eu-west-1’;

juliensimon

CREATE TABLE mydata 
(
  lastname    VARCHAR(30) NOT NULL,
  firstname   VARCHAR(30) NOT NULL,
  gender      CHAR(1) NOT NULL,
  state       VARCHAR(30) NOT NULL,
  age         SMALLINT NOT NULL,
  month       SMALLINT NOT NULL,
  day         SMALLINT NOT NULL,
  hour        SMALLINT NOT NULL,

juliensimon

score
1.493473E3
1.247774E3
7.402291E2
1.49587E3
1.998012E3
9.961498E2
2.246854E3
9.937198E2
1.235804E3

juliensimon

✗ aws machinelearning describe-ml-models
{
    "Results": [
        {
            "Status": "COMPLETED",
            "SizeInBytes": 5821257,
            "Name": "ML model: Data3.txt",
            "TrainingParameters": {
                "sgd.l2RegularizationAmount": "1e-6",
                "sgd.maxMLModelSizeInBytes": "104857600",

juliensimon

✗ aws machinelearning describe-evaluations
{
    "Results": [
        {
            "EvaluationDataSourceId": "9f8bc29a-54d6-49a5-897c-089fbe7abf01",
            "Status": "COMPLETED",
            "Name": "Evaluation: ML model: Data3.txt",
            "InputDataLocationS3": "s3://jsimon-logs-us/data3.txt",
            "EvaluationId": "ev-ZYV6BJeN4rQ",
            "CreatedByIamUser": "MY_ARN",