require_once '/core.php';
$arm1 = new BernoulliArm(0.7);
$arm2 = new NormalArm(10.0, 1.0);
$arm3 = new BernoulliArm(0.2);
$arms = [$arm1, $arm2, $arm3];
// $algo1 = new EpsilonGreedy(0.1, [], []); # not implemented yet
// $algo2 = new Softmax(1.0, [], []); # not implemented yet
$algo3 = new UCB1([], []);
// $algo4 = new Exp3(0.2, []); # not implemented yet
$algo5 = new UCB2(0.1, [], []);
$num_sims = 1000;
$horizon = 10;
$algos = [$algo3];
$rows = '';
foreach ($algos as $algo) {
$results = test_algorithm($algo, $arms, $num_sims, $horizon);
for ($i = 0; $i < $num_sims * $horizon; $i++) {
$rows .= '<tr><td>' . $results[0][$i] . '</td><td>' . $results[1][$i] . '</td><td>' . $results[2][$i] . '</td><td>' . $results[3][$i] . '</td><td>' . $results[4][$i] . '</td></tr>';
}
}
$table = <<<EOD
<pre>
<table style="width: 100%">
<thead>
<tr>
<td>sim_nums</td>
<td>times</td>
<td>chosen_arms</td>
<td>rewards</td>
<td>cumulative_rewards</td>
</tr>
/**
* Tests the algorithms
*
* @return array
*/
function test_algorithms()
{
require_once ROOT . '/api/aa-get-algorithms.php';
$algorithms = aa_get_algorithms();
$results = array();
$successes = 0;
$failures = 0;
$missing = 0;
foreach (array_keys($algorithms) as $algorithm) {
list($algorithm_filename, $example_filename) = make_file_names($algorithm);
$result = test_algorithm($algorithm);
if (empty($result)) {
$missing++;
} else {
$successes += $result['successes'];
$failures += $result['failures'];
}
$results[$algorithm] = $result;
}
return array('successes' => $successes, 'failures' => $failures, 'missing' => $missing, 'results' => $results);
}
/**
* Runs the test of the algorithm
*/
function process_test_action()
{
global $_filename, $_examples, $_source_code, $_docblock, $_algorithm;
global $_posted_params, $_test;
list($_filename, $_examples, $_source_code, $_docblock) = get_algorithm_details($_algorithm);
if (!empty($_posted_params['run'])) {
$_test = test_algorithm($_algorithm, $_examples);
}
}