LAMPIRAN A: Kode Program

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1 68 LAMPIRAN A: Kode Program 1. proses_teks_tanpa_stemming_executor.php <?php $teks = hapus_spesial_karakter_dan_nomor(strtolower($teks)); function hapus_spesial_karakter_dan_nomor($string){ return preg_replace('/[^a-za-z]/', ' ', = explode(" ", $teks); foreach($arraykata as $kata){ $kata = hapus_2_karakter($kata); if(trim($kata)!= "") = $teks_kata. " ". $kata; function hapus_2_karakter($kata){ if (strlen($kata) > 2){ return $kata; else { return "";?> 2. proses_teks_dengan_stemming_executor.php <?php function hapus_spesial_karakter_dan_nomor($string){ return preg_replace('/[^a-za-z]/', ' ', = explode(" ", $teks); foreach ($arraykata as $kata) { $kata = hapus_2_karakter($kata); if (trim($kata)!= "") = $teks_kata. " ". $kata; function hapus_2_karakter($kata) { if (strlen($kata) > 2) { return $kata; else { return ""; $arraykata = explode(" ", $teks_kata); foreach ($arraykata as $kata) { $a = hapus_stop_words(trim($kata)); if ($a!= "") = $hasil_hapus_stop_words. " ". $a; function hapus_stop_words($kata) { $q=mysql_query("select * FROM tb_stoplist WHERE stoplist='$kata'") or die(mysql_error()); $r = mysql_fetch_array($q);

2 69?> if (mysql_num_rows($q) > 0) { return ""; else { return $kata; 3. ECS.php //Hapus Inflection Suffixes (..-lah,..-kah,..-mu, atau..-nya) function Del_Inflection_Suffixes($kata) { $kataasal = $kata; if(preg_match('([km]u nya [kl]ah pun)', $kata)){ //Cek Inflection Suffixes $ kata = preg_replace('/([km]u nya [kl]ah pun)$/i', '', $kata); if (preg_match('/([klt]ah pun)$/i', $kata)){ //Jika berupa partikel (..-lah,..-kah,..-tah, atau..-pun) if (preg_match('/([km]u nya)$/i', $ kata)){ //Hapus Possesive Pronouns (..-ku,..-mu, atau..-nya) $ kata = preg_replace('([km]u nya)$', '', $ kata); return $ kata; return $kataasal; //Cek Prefix Disallowed Sufixes (Kombinasi Awalan dan Akhiran yang tidak diizinkan) function Cek_Prefix_Disallowed_Sufixes($kata) { if (preg_match("/^(be)[[:alpha:]]+(i)$/i", $kata)) { //be-.. dan..-i return true; if (preg_match("/^(di)[[:alpha:]]+(an)$/i", $kata)){ //di-.. dan..-an return true; if (preg_match("/^(ke)[[:alpha:]]+(i kan)$/i", $kata)){ //ke-.. dan..-i,..-kan return true; if (preg_match("/^(me)[[:alpha:]]+(an)$/i", $kata)){ //me-.. dan..-an return true; if (preg_match("/^(se)[[:alpha:]]+(i kan)$/i", $kata)){ //se-.. dan..-i,..-kan return true; return false; //Hapus Derivation Suffixes (..-i,..-an, atau..-kan) function Del_Derivation_Suffixes($kata) { $kataasal = $kata; if (preg_match('/(kan)$/', $kata)){ //Cek Suffixes $ kata = preg_replace('/(kan)$/', '', $kata); //Cek Kamus

3 70 return $ kata; if (preg_match('/(an i)$/', $kata)){ //cek..-kan $ kata = preg_replace('/(an i)$/', '', $kata); //Cek Kamus if (Cek_Prefix_Disallowed_Sufixes($kata)) { return $kataasal; return $kataasal; //Hapus Derivation Prefix (di-.., ke-.., se-.., te-.., be-.., me-.., atau pe-..) function Del_Derivation_Prefix($kata) { $kataasal = $kata; /* Tentukan Tipe Awalan */ if (preg_match('/^(di [ks]e)\s{1,/', $kata)) { //Jika di-.., ke-.., se-.. $ kata = preg_replace('/^(di [ks]e)/', '', $kata); if (preg_match('/^([tmbp]e)\s{1,/', $kata)){ //Jika awalannya adala te-.., me-.., be-.., atau pe-.. /* Awalan be */ if (preg_match('/^(be)\s{1,/', $kata)){ //Jika awalan be-.. if(preg_match('/^(ber)[aiueo]\s{1,/', $kata)) { //Aturan 1 $ kata = preg_replace('/^(ber)/', '', $kata); $ kata = preg_replace('/^(ber)/', 'r', $kata); /* Awalan te */ if (preg_match('/^(ter)[aiueo]\s{1,/', $kata)) { //Aturan 6 $ kata = preg_replace('/^(ter)/', '', $kata);

4 71 $ kata = preg_replace('/^(ter)/', 'r', $kata); /* Awalan me */ if (preg_match('/^(me)\s{1,/', $kata)) { //Jika awalan me-.. if (preg_match('/^(me)[lrwyv][aiueo]/', $kata)) { //Aturan 10 $ kata = preg_replace('/^(me)/', '', kata = Del_Derivation_Suffixes($ kata ); /* Awalan memper */ if (preg_match('/^(memper)\s{1,/', $kata)) { $ kata = preg_replace('/^(memper)/', '', $kata); /* Cek luluh -r */ $ kata = preg_replace('/^(memper)/', '', $kata); /* Cek luluh -r */ $ kata = preg_replace('/^(mempel)/', 'l', $kata); /* Cek Ada Tidaknya Prefix/Awalan di-.., ke-.., se-.., te-.., be-.., me-.., atau pe */ if (preg_match('/^(di [kstbmp]e)\s{1,/', $kata) == FALSE) {

5 72 return $kataasal; return $kataasal; function Enhanced_CS($kata) { $kataasal = $kata; //1. Cek Kata di kamus, jika ada maka selesai if (cekkamus($kata)) { return $kata; else { //2. Buang Infection Suffixes (..-lah,..-kah,..-ku,..-mu, atau..-nya) $kata = Del_Inflection_Suffixes($kata); //3. Buang Derivation Suffix (..-i atau..-an) $kata = Del_Derivation_Suffixes($kata); //4. Buang Derivation Prefix $kata = Del_Derivation_Prefix($kata); return $kata;?> 4. winnowing.php <?php function winnow($teks, $nilai_gram, $window) { $teks = hapus_special_karakter_dan_nomor($teks); $grams = pembentukan_grams($teks, $nilai_gram); $hash = pembentukan_hash($grams); $array_window = membuat_window($hash, $window); $finger = finger_print($array_window); $finger = array_unique($finger); return $finger; function similarity($finger1, $finger2) { $finger_sama = 0; foreach ($finger1 as $h1) { foreach ($finger2 as $h2) { if ($h1 == $h2) { $finger_sama++; break; $finger_merge = array_merge($finger1, $finger2); $finger_unik = array_unique($finger_merge); $total_finger_unik = sizeof($finger_unik); $jaccard_coefficient = $finger_sama / $total_finger_unik; return $jaccard_coefficient; function buat_hash($teks, $gram) { $grams = pembentukan_grams($teks, $gram); $hash = pembentukan_hash($grams); return $hash; function hapus_special_karakter_dan_nomor($teks) { return preg_replace('/[^a-za-z]/', '', trim(strtolower($teks))); function pembentukan_grams($string, $kgram) { $kgramawal = $kgram;

6 73 $jum = strlen($string); $temp = 0; $kgram_temp = 0; $batas = $kgramawal - 1; for ($i = 0; $i < $jum - $batas; $i++) { $res[] = substr($string, $i, $kgramawal); $temp = $kgram; $kgram = $kgram + 1; return $res; function pembentukan_hash($grams) { $arrayhash = array(); foreach ($grams as $pos => $gram) { $basis_bilangan = 10; $bilangan_prima = 10007; $chararray = str_split($gram); $pangkat = count($chararray); $hash = 0; foreach ($chararray as $karakter) { $hash += (ord($karakter)*pow($basis_bilangan,($pangkat-1))); $pangkat--; $total_hash = $hash; $hasil = fmod($total_hash, $bilangan_prima); $arrayhash[] = $hasil; return $arrayhash; function membuat_window($array, $window) { $arraywindow = array(); for ($i = 0; $i < count($array) - $window + 1; $i++) { for ($j = $i; $j < $window + $i; $j++) { $arraywindow[$i][$j] = $array[$j]; return $arraywindow; function finger_print($array) { $finger = array(); foreach ($array as $obj) { $finger[] = min($obj); return $finger;?>

7 LAMPIRAN B: Hasil Pendekteksian Kesamaan 1. Pengujian pendeteksian kesamaan dengan proses stemming Jurnal Uji Fingerprint Jurnal Pembanding Fingerprint Fingerprint yang sama Analisa PSNR Pada Teknik Spread Spectrum Analisa PSNR Pada Teknik Spread Spectrum Analisa PSNR Pada Teknik Spread Spectrum [2083,0] [906,4] [187,8] [677,13] [133,15] [550,20] [2049,20] [2684,26] [3617,29] [3140,30] [532,32] [866,37] [2091,38] [2789,40] [4455,41] [4665,42] [2083, 0] [906,4] [187,8] [677,13] [133,15] [550,20] [2049,20] [2684,26] [3617,29] [3140,30] [532,32] [866,37] [2091,38] [2789,40] [4455,41] [4665,42] [2083, 0] [906,4] [187,8] [677,13] [133,15] [550,20] [2049,20] [2684,26] [3617,29] [3140,30] [532,32] [866,37] [2091,38] [2789,40] [4455,41] [4665,42] Pesan Text Ke Dalam File Sound (.Wav) Dengan Modifikasi Jarak Byte Pada Algoritma Least Significant Bit (Lsb) Perancangan Perangkat Lunak Audio MP3 Metode Least Significant Bit (LSB) Dengan Visual Basic 6.0 Sistem Keamanan Data dengan Teknik End of File (EOF) dan Rabin Public Key Cryptosystem [1569,30] [4704,32] [1376,33] [223,37] [175,39] [3860,44] [4131,45] [680,46] [1647,30] [1154,31] [1752,36] [1540,40] [1144,43] [2311,48] [3832,49] [1330,50] [3458,2] [103,3] [2517,8] [3100,9] [712,10] [754,15] [3921,20] [3074,21] [634,23] [217,27] [318,32] [5284,35] [7783,35] [7072,36] Kesamaan (%) Lama Proses (s) [187,2187] [677,1931] [133,2643] [583,1394] [2230,3977] [1071,3580] [3978,763] [2384,6123] [401,104] [45,1136] ± [677,2100] [2049,7854] [532,873] [866,3285] [2091,4320] [400,1152] [1071,6069] [931,25] [3317,4561] [2384,2531] [906, 6232] [187, 13262] [550, 1057] [2049, 11683] [2684,1895] [3617, 3172] [532, 5577] [2789, 4367] [2383, 10775] [583, 5133] ± ±

8 Pengujian pendeteksian kesamaan dengan proses stemming (lanjutan) Jurnal Uji Fingerprint Jurnal Pembanding Fingerprint Fingerprint yang sama Kriptografi Dan [1115,0] [446,2] [1660,7] [2349,8] [3234,9] [4009,11] [882,12] [2202,17] [1516,18] [1125,19] [1929,24] [5270,27] [3282,29] [420,30] [3388,35] [3105,36] Pesan Text Ke Dalam File Sound (.Wav) Dengan Modifikasi Jarak Byte Pada Algoritma Least Significant Bit (Lsb) [1569,30] [4704,32] [1376,33] [223,37] [175,39] [3860,44] [4131,45] [680,46] Kesamaan (%) Lama Proses (s) [1115,1936] [1660,5500] [882,1869] [2202,3814] [3282,3652] [3105,324] [2773,3707] [1646,1619] [2177,7111] [858,842] ± Kriptografi Dan [1115,0] [446,2] [1660,7] [2349,8] [3234,9] [4009,11] [882,12] [2202,17] [1516,18] [1125,19] [1929,24] [5270,27] [3282,29] [420,30] [3388,35] [3105,36] Perancangan Perangkat Lunak Audio MP3 Metode Least Significant Bit (LSB) Dengan Visual Basic 6.0 [1647,30] [1154,31] [1752,36] [1540,40] [1144,43] [2311,48] [3832,49] [1330,50] [1660,7287] [2349,7794] [3234,3791] [4009,2898] [882,2038] [1516,6717] [420,530] [3105,4360] [5790,3720] [2773,3875] ± Kriptografi Dan [1115,0] [446,2] [1660,7] [2349,8] [3234,9] [4009,11] [882,12] [2202,17] [1516,18] [1125,19] [1929,24] [5270,27] [3282,29] [420,30] [3388,35] [3105,36] Sistem Keamanan Data dengan Teknik End of File (EOF) dan Rabin Public Key Cryptosystem [3458,2] [103,3] [2517,8] [3100,9] [712,10] [754,15] [3921,20] [3074,21] [634,23] [217,27] [318,32] [5284,34] [7783,35] [7072,36] [446, 3295] [1660,503] [4009, 2303] [882, 544] [2202, 11625] [1125, 5708] [3105, 0] [2773, 7809] [1646, 318] [2177, 1466] ±

9 Pengujian pendeteksian kesamaan dengan proses stemming (lanjutan) Jurnal Uji Fingerprint Jurnal Pembanding Fingerprint Fingerprint yang sama Steganography Metode Least Significant Bit (Lsb) Pada Mobile Phone Berbasis Symbian Os Steganography Metode Least Significant Bit (Lsb) Pada Mobile Phone Berbasis Symbian Os Steganography Metode Least Significant Bit (Lsb) Pada Mobile Phone Berbasis Symbian Os [4405,2] [3211,5] [328,9] [5383,14] [1313,15] [630,17] [641,22] [2797,26] [3514,27] [4921,28] [4730,29] [2400,30] [975,31] [1130,36] [4405,2] [3211,5] [328,9] [5383,14] [1313,15] [630,17] [641,22] [2797,26] [3514,27] [4921,28] [4730,29] [2400,30] [975,31] [1130,36] [4405,2] [3211,5] [328,9] [5383,14] [1313,15] [630,17] [641,22] [2797,26] [3514,27] [4921,28] [4730,29] [2400,30] [975,31] [1130,36] Pesan Text Ke Dalam File Sound (.Wav) Dengan Modifikasi Jarak Byte Pada Algoritma Least Significant Bit (Lsb) Perancangan Perangkat Lunak Audio MP3 Metode Least Significant Bit (LSB) Dengan Visual Basic 6.0 Sistem Keamanan Data dengan Teknik End of File (EOF) dan Rabin Public Key Cryptosystem [1569,30] [4704,32] [1376,33] [223,37] [175,39] [3860,44] [4131,45] [680,46] [1647,30] [1154,31] [1752,36] [1540,40] [1144,43] [2311,48] [3832,49] [1330,50] [3458,2] [103,3] [2517,8] [3100,9] [712,10] [754,15] [3921,20] [3074,21] [634,23] [217,27] [318,32] [5284,34] [7783,35] [7072,36] [3105,324] [5798,1710] [4405,1711] [3211,1714] [328,845] [5383,850] [1313,2975] [630,772] [641,3130] [2797,3133] [3105, 4360][4405, 477] [3211, 311] [328, 145] [5383, 9402] [1313, 5477] [630, 2942] [641, 1712] [2797, 1717] [3514, 1718] [4405,5681] [3211,11085] [641,12807] [2797,4941] [3514,9348] [4921,12814] [4730,4514] [2400,12816] Kesamaan (%) Lama Proses (s) ± ± ±

10 2. Pengujian pendeteksian kesamaan dengan tanpa proses stemming Jurnal Uji Fingerprint Jurnal Pembanding Fingerprint Fingerprint yang sama Analisa PSNR Pada Teknik Spread Spectrum Analisa PSNR Pada Teknik Spread Spectrum Analisa PSNR Pada Teknik Spread Spectrum [2083,0] [906,4] [187,8] [677,13] [133,15] [550,20] [2049,24] [2684,26] [3617,29] [3140,30] [532,32] [866,37] [2091,38] [2789,40] [4455,41] [4665,42] [2083,0] [906,4] [187,8] [677,13] [133,15] [550,20] [2049,24] [2684,26] [3617,29] [3140,30] [532,32] [866,37] [2091,38] [2789,40] [4455,41] [4665,42] [2083,0] [906,4] [187,8] [677,13] [133,15] [550,20] [2049,24] [2684,26] [3617,29] [3140,30] [532,32] [866,37] [2091,38] [2789,40] [4455,41] [4665,42] Pesan Text Ke Dalam File Sound (.Wav) Dengan Modifikasi Jarak Byte Pada Algoritma Least Significant Bit (Lsb) Perancangan Perangkat Lunak Audio MP3 Metode Least Significant Bit (LSB) Dengan Visual Basic 6.0 Sistem Keamanan Data dengan Teknik End of File (EOF) dan Rabin Public Key Cryptosystem [1361,30] [612,31] [4006,36] [734,38] [175,43] [3860,48] [4131,49] [680,50] [914,30] [3545,35] [7318,37] [4357,38] [7156,43] [7069,44] [3172,47] [996,50] [3458,2] [103,3] [2517,8] [4020,9] [6145,12] [6506,13] [4036,14] [688,16] [2009,21] [4657,22] [696,23] [1091,28] [6146,32] [2048,33] [906,9306] [677,2847] [133,232] [550,3885] [3140,7885] [4455,2921] [2118,6556] [400,1552] [583,1183] [302,151] [2083,8649] [906,8591] [187,1425] [677,3904] [133,9325] [550,12663] [2049,14397] [2684,12996] [532,12370] [866,12750] [2083, 19135] [906, 350] [187, 4960] [677, 1494] [550, 1595] [2684, 5977] [3617, 5657] [3140, 14386] [532, 20835] [862, 1221] Kesamaan (%) Lama Proses (s) ± ± ±

11 Pengujian pendeteksian kesamaan dengan tanpa proses stemming (lanjutan) Jurnal Uji Fingerprint Jurnal Pembanding Fingerprint Fingerprint yang sama Kesamaan (%) [1667,0] [1503,2] [337,7] [3234,12] Pesan Text Ke Dalam File [4009,16] [882,17] Sound (.Wav) Dengan [2202,22] [1516,24] Modifikasi Jarak Byte Pada [1125,29] [1929,32] Algoritma Least Significant [1361,30] [612,31] [5270,34] [3282,35] Bit (Lsb) [4006,36] [734,38] [3388,40] [3105,41] [175,43] [3860,48] [5790,46] [4131,49] [680,50] Kriptografi Dan Lama Proses (s) [1667, 2004] [337,133] [4009,7525] [882,3324] [2202,1244] [1516,5695] [1929,6893] [3282,6456] [3105,654] [5790,657] ± Kriptografi Dan [1667,0] [1503,2] [337,7] [3234,12] [4009,16] [882,17] [2202,22] [1516,24] [1125,29] [1929,32] [5270,34] [3282,35] [3388,40] [3105,41] [5790,46] Perancangan Perangkat Lunak Audio MP3 Metode Least Significant Bit (LSB) Dengan Visual Basic 6.0 [914,30] [3545,35] [7318,37] [4357,38] [7156,43] [7069,44] [3172,47] [996,50] [1667,6011] [1503,3331] [337,195] [3234,7469] [882,3839] [2202,1167] [1516,12373] [3105,3534] [5790,16245] [2773,7235] ± Kriptografi Dan [1667,0] [1503,2] [337,7] [3234,12] [4009,16] [882,17] [2202,22] [1516,24] [1125,29] [1929,32] [5270,34] [3282,35] [3388,40] [3105,41] [5790,46] Sistem Keamanan Data dengan Teknik End of File (EOF) dan Rabin Public Key Cryptosystem [3458,2] [103,3] [2517,8] [4020,9] [6145,12] [6506,13] [4036,14] [688,16] [2009,21] [4657,22] [696,23] [1091,28] [6146,32] [2048,33] [3105, 41] [103, 13765] [4020, 11567] [4036, 11548] [696, 8252] [1091, 95] [6146, 100] [2048, 101] [1757, 14318] [325, 250] ±

12 Pengujian pendeteksian kesamaan dengan tanpa proses stemming (lanjutan) Jurnal Uji Fingerprint Jurnal Pembanding Fingerprint Fingerprint yang sama Kesamaan (%) [4405,2] [3211,5] Pesan Text [328,9] [5383,14] Ke Dalam File Sound [1245,15] [1134,19] (.Wav) Dengan [1687,24] [2037,29] Modifikasi Jarak Byte [1361,30] [612,31] [2080,31] [641,32] Pada Algoritma Least [4006,36] [734,38] [2797,37] [3514,38] Significant Bit (Lsb) [175,43] [3860,48] [4921,39] [4730,40] [4131,49] [680,50] Steganography Metode Least Significant Bit (Lsb) Pada Mobile Phone Berbasis Symbian Os Steganography Metode Least Significant Bit (Lsb) Pada Mobile Phone Berbasis Symbian Os Steganography Metode Least Significant Bit (Lsb) Pada Mobile Phone Berbasis Symbian Os [4405,2] [3211,5] [328,9] [5383,14] [1245,15] [1134,19] [1687,24] [2037,29] [2080,31] [641,32] [2797,37] [3514,38] [4921,39] [4730,40] [4405,2] [3211,5] [328,9] [5383,14] [1245,15] [1134,19] [1687,24] [2037,29] [2080,31] [641,32] [2797,37] [3514,38] [4921,39] [4730,40] Perancangan Perangkat Lunak Audio MP3 Metode Least Significant Bit (LSB) Dengan Visual Basic 6.0 Sistem Keamanan Data dengan Teknik End of File (EOF) dan Rabin Public Key Cryptosystem [914,30] [3545,35] [7318,37] [4357,38] [7156,43] [7069,44] [3172,47] [996,50]... [3458,2] [103,3] [2517,8] [4020,9] [6145,12] [6506,13] [4036,14] [688,16] [2009,21] [4657,22] [696,23] [1091,28] [6146,32] [2048,33] Lama Proses (s) [3105,654] [5798,3150] [4405,3151] [3211,3154] [5383,2598] [1245,4826] [1687,4241] [2037,4246] [641,5461] [2797,2924] ± [3105, 3534] [3211, 1117] [328, 17081] [5383, 17086] [1245, 14338] [1134, 671] [1687, 676] [2037, 681] [2080, 3725] [641, 3339] ± [3211,18246] [1245,7545] [1687,508] [2037,3230] [641,22178] [2797,8630] [3514,22184] [4921,22185] ±