public PassiveTest() {
String url = "jdbc:mysql://localhost:8889/";
String dbName = "openML";
String driver = "com.mysql.jdbc.Driver";
String userName = "******";
String password = "******";
List<String> algorithms = createSimpleClassifierList();
HashMap<String, Classifier> classifiers = ClassifierUtils.createClassifiers(algorithms);
List<String> algorithmNames = createSimpleAlgorithmNameList();
IDataAccessObject dao =
new MysqlMetaDataAccessObject(url, dbName, driver, userName, password, algorithmNames);
// int[] ids = createIds(100, 1, 1, dao);
// int[] ids = createSimpleIds();
int[] ids = OpenMLUtils.getIds(100000);
HashMap<String, IDataAccessObject> datasets = new HashMap<String, IDataAccessObject>();
data = new HashMap<String, Instance>();
System.out.println("Getting Data Access Objects for each id");
for (int id : ids) {
String s = String.valueOf(id);
if (StringUtils.isNullOrWhiteSpace(s)) continue;
ArffDataAccessObject arffDAO = OpenMLUtils.getArffDAO(s);
if (arffDAO != null) {
data.put(s, dao.getInstance(s));
datasets.put(s, arffDAO);
}
}
IOracle oracle = new MetaDataOracle(dao, classifiers, datasets);
AInstanceSelecter instanceSelecter = new RandomInstanceSelecter();
learner = new PoolLearner(oracle, instanceSelecter);
}
public static int[] createIds(int size, int start, int offset, IDataAccessObject dao) {
System.out.println("Creating Test ids");
if (size < 1) size = 1;
if (size > 500) size = 500;
if (start < 1 || start > 500) start = 1;
if (offset < 1 || offset * size > 500) offset = 1;
int[] ids = new int[size];
for (int i = 0; i < size; ++i) {
ids[i] = start;
String label = (String) dao.getLabel(String.valueOf(start));
if (StringUtils.isNullOrWhiteSpace(label)) {
i--;
}
start += offset;
}
System.out.println("#####Successfully created Test ids");
return ids;
}