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APLIKASI PENDETEKSI KEMIRIPAN ISI TEKS DOKUMEN MENGGUNAKAN METODE LEVENSHTEIN DISTANCE Na’firul Hasna Ariyani; Sutardi Sutardi; Rahmat Ramadhan
semanTIK Vol 2, No 1 (2016): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.951 KB) | DOI: 10.55679/semantik.v2i1.1030

Abstract

The rapidly evolving information technology brings positive and negative impacts to the lives One of the negative impacts is plagiarism. Plagiarism is the act of plagiarizing the work of others and recognize as his own handiwork. Therefore, detection of plagiarism needs to be done to reduce plagiarism against other people's work. This thesis aims to detect text document similarity algorithm using Levenshtein Distance so that it can be used to help determine plagiarism. Type of document to be tested is .docx and .pdf .txt. Stages in the system is preprocessing that consist of Case Folding, tokenizing, Filtering, Stemming, Sorting. After the preprocessing the next step is to do the calculation using the method Levenshtein Distance and penggukuran value of similarity thus getting a percentage value of the similarity between the two documents. In testing using real data ie data documents berplagiat with Levenshtein Distance algorithm produces a high similarity value is above 77% to 100% for the document that a high level of similarity. As for the document with a low degree of similarity or not berplagiat then generate similarity values ​​below 40%.   Keywords— Document, Levenshtein Distance, Preprocessing, Similarity, Plagiarism
OPTIMALISASI JARINGAN WIRELESS DAN ANALISIS QUALITY of SERVICE (QoS) MENGGUNAKAN METODE HIERARCHICAL TOKEN BUCKET (HTB) Risna Risna; Isnawaty Isnawaty; Sutardi Sutardi
semanTIK Vol 3, No 2 (2017): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.34 KB) | DOI: 10.55679/semantik.v3i2.3201

Abstract

Kinerja suatu jaringan Wi-Fi (Wireless Fidelity), misalnya pada suatu gedung, dapat diketahui dari penerimaan sinyal yang diterima oleh pengguna dari AP. Tentunya penerimaan sinyal yang naik turun atau yang lemah tidak dikehendaki. Hal ini dapat dilihat dari aspek-aspek propagasi gelombang radio dalam ruangan (indoor propagation). Apabila pembagian bandwidth dalam suatu jaringan wireless dapat dilakukan secara tepat maka kinerja jaringan wireless akan lebih optimal.Metode Hierarchical Token Bucket (HTB) merupakan salah satu metode yang digunakan untuk mengoptimalkan jaringan dari segi manajemen bandwidth. Metode HTB ini memberikan kemudahan pemakaian dengan teknik peminjaman dan implementasi pembagian trafik yang lebih akurat serta dapat memudahkan pengelola jaringan dalam mengalokasikan bandwidth, membagi sesuai kebutuhan serta menjamin kualitas jaringan yang berbasis wireless, sehingga tidak terjadi rebutan bandwidth antar client karena sudah dilakukan manajemen pada setiap client.Hasil yang didapatkan adalah dapat dilihat bahwa kualiatas jaringan dengan menggunakan metode antrian HTB (Hierarchical Token Bucket) lebih optimal, hal ini dikarenakan semua client akan mendapatkan kuota bandwidth sesuai dengan rule yang diterapkan pada bandwidth management.Kata kunci—Hierarchial Token Bucket, Quality of Service, MikroTik, Jaringan Wireless
APLIKASI KEAMANAN SMS MENGGUNAKAN ALGORITMA TRIPLE-DES DAN PENGUJIAN SERANGAN MAN IN THE MIDDLE ATTACK (MITM) DENGAN METODE SNIFFING Sri Wayun Wardani; Sutardi Sutardi; Statiswaty Statiswaty
semanTIK Vol 5, No 1 (2019): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (530.237 KB) | DOI: 10.55679/semantik.v5i1.6207

Abstract

An increasing number of mobile phone users and the number of Short Message Service (SMS) delivery between users, securities SMS sending an issue that deserves to be noticed. SMS industry into one vulnerable point to attack a security threat. The security hole on SMS communication is a message sent will be stored in the Short Message Service Center (SMSC), so that in case of attack Man In The Middle (MITM) at the SMSC then sent messages to be read by those who tapped one of them is sniffing activity. So, we need a safeguard against the activity of the exchange of messages via SMS. One of them is by using cryptography. Cryptography is a technique to secure the message so that the message conveyed to arrive to the person intended, receives the message. Cryptography is composed of two main concepts that encryption and decryption. Encryption is used to process information becomes unrecognized and decryption is used to change the information that was not recognized into information that is recognizable as before encryption. By encrypting text, the level of information security of the message can be improved. Currently, the Triple-DES (Triple Data Encryption Standard) is a secure cryptography algorithm for encryption process is carried out in 3 stages but did not change the algorithms of DES in order to ensure the complexity of solving the results of Triple-DES encryption. Therefore, it can be prepared that, if the intruder was given a person or an attack using a sniffing methods, the received message by the perpetrators are not illegible.Keywords—Cryptography, Man In The Middle Attack, Sniffing, SMS, Triple-DES DOI : 10.5281/zenodo.3227231
APLIKASI KEAMANAN E-MAIL MENGGUNAKAN ALGORITMA AES (ADVANCED ENCRYPTIO STANDARD) BERBASIS ANDROID Nur Ayun Qolbu; Sutardi Sutardi; LM. Tajidun
semanTIK Vol 2, No 1 (2016): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (932.453 KB) | DOI: 10.55679/semantik.v2i1.1313

Abstract

The e-mail is one of the facilities provided by the android based mobile phone so that increasingly changing the way people communicate. First long distance communication is still using the conventional manner, that is by sending each other letters, but now remote communication can be done easily and quickly. But with so many new technologies are evolving, there are many who disseminated information is both public and private, or secret, so that information security is not guaranteed. E-mail security applications needed to secure the information by applying the science of cryptography algorithm AES (Advanced Encryption Standard). AES algorithm is a cryptographic algorithm that is sufficiently robust security and easy to solve and apply. In this application is implemented using the Java programming language, android studio. The test files used in the e-mail application is txt, docx, pdf and ppt. The results of this study states algorithm AES (Advanced Encryption Standard) can be implemented into the process of encryption and decryption at the application of e-mail security. This can ensure that the parties understand the message or file is sent via e-mail is the right side. Keywords— AES (Advanced Encryption Standard) Algorithms, E-mail Security, Android.
APLIKASI ISTILAH AKUNTANSI SEBAGAI MEDIA PEMBELAJARAN BERBASIS ANDROID MENGGUNAKAN ALGORITMA REVERSE COLUSSI Annisyah Januarti; Sutardi Sutardi; Mutmainnah Muchtar
semanTIK Vol 3, No 2 (2017): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (472.321 KB) | DOI: 10.55679/semantik.v3i2.3653

Abstract

Akuntansi adalah proses dari transaksi yang dibuktikan dengan faktur, lalu dari transaksi dibuat jurnal, buku besar, neraca lajur, kemudian akan menghasilkan informasi dalam bentuk laporan keuangan yang digunakan pihak-pihak tertentu. Kamus akuntansi merupakan salah satu media pembelajaran yang sangat dibutuhkan dalam dunia pendidikan. Namun, seringkali ditemukan masalah waktu yang kurang efisien dan ukuran kamus yang biasannya besar dan berat untuk dibawa kemana-mana. Salah satu cara untuk mengatasi masalah ini adalah dengan membuat aplikasi istilah akuntansi berbasis android. Algoritma Reverse Colussi memiliki kinerja pencarian kata dimulai dari akhir pattern yang disesuaikan dengan sumber teks.Untuk mempermudah pengguna kamus dalam mencari istilah di bidang akuntansi, maka diperlukan integrasi dari sistem manual ke sistem otomatis dengan mengimplementasikan Algoritma Reverse Colussi. Algoritma Reverse Colussi memiliki kinerja pencarian kata dimulai dari pattern yang dicocokkan dengan sumber teks. Jika terjadi ketidakcocokkan pada pattern maka secara langsung akan dilakukan perpindahan posisi pengecekan. Hasil yang diperoleh dari penelitian ini adalah sebuah aplikasi istilah akuntansi berbasis android offline sangat efisien karena rata-rata waktu pencarian paling lambat kurang dari 2 detik, dan tepat dalam melakukan pencarian string, selama istilah yang dicari ada dalam database.Kata kunci—Android, Algoritma  Reverse  Colussi.
IMPLEMENTASI KAMUS KATA SERAPAN BAHASA INDONESIA – INGGRIS DENGAN FITUR AUTO COMPLETE TEXT MENGGUNAKAN ALGORITMA INTERPOLATION SEARCH UNTUK SMARTPHONE BERBASIS ANDROID Muhammad Hatta; Sutardi Sutardi; Bambang Pramono
semanTIK Vol 2, No 1 (2016): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.061 KB) | DOI: 10.55679/semantik.v2i1.713

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Loan words are words derived from foreign languages that have been integrated to a language and their  use is generally accepted. To some people, the pronounciation of those words may have some errors caused by lack of understanding of the words. In addition, loan words are used by many areas of work. Therefore, a system that display the words and their meanings is needed. An effective algorithm or method is needed to develop search dictionary application because data search is an important part in data processing. This application uses Interpolation Search algorithm. Interpolation search algorithm is more  efficient than Binary  Search  and Sequential Search. The reason behind this is because the algorithm does not need to access each  tabel’s elements. The translated words have Text Auto Complete feature to facilitate users to find the desired words. The result of this research is the implementation of Indonesian-English loan words dictionary application to Android Operating System that is developed using Android Programming Language. Keywords—Loan words, Interpolation Search, Text Auto Complete, Android
IMPLEMENTASI ALGORITMA ARITHMETIC CODING PADA KOMPRESI FILE AUDIO VIA FTP (FILE TRANSFER PROTOCOL) Uswatun Hasanah; Sutardi Sutardi; Rahmat Ramadhan
semanTIK Vol 3, No 2 (2017): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (825.601 KB) | DOI: 10.55679/semantik.v3i2.3437

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Teknik kompresi digunakan untuk proses transmisi data (data transmission) dan data penyimpangan data (storage) Bila ditinjau dari sisi penggunaannya, kompresi data bersifat umum untuk segala keperluan atau bersifat khusus untuk keperluan tertentu. Dalam penelitian ini, dibangun sebuah aplikasi kompresi file audio dengan menggunakan algoritma lossless compression, yaitu Arithmetic Coding Pengujian dilakukan untuk mengetahui besar rasio kompresi, waktu kompresi, dan waktu dekompresi. Ada 2 file yang diujikan, yaitu file audio berekstensi *.wav dan *.mp3 . Pengujian aplikasi kompresi ini dilakukan dengan menguji file yang mempunyai ukuran berbeda-beda dengan nilai sample rate dan bitrate yang sama dan via FTP (File Transfer Protokol) .Hasil pengujian diperoleh, rata-rata rasio kompresi terbaik terdapat pada pengujian file wav yaitu dengan rasio sebesar 11 % dan rasio terkecil pada pengujian file mp3 dengan rasio 2,4 %.  file  dengan pengujian waktu tercepat terjadi pada file mp3 dimana waktu terbaik pengujian dengan rata-rata 2.276 second. Sedangkan waktu terlama saat pengujian terjadi pada pengujian file wav dengan waktu kompresi rata-rata 12.6861 second. File audio dengan ukuran yang besar membutuhkan waktu lebih lama dalam melakukan proses kompresi.Kata kunci— Arithmetic Coding, File Audio, Kompresi, Dekompresi
APLIKASI ENKRIPSI DAN DEKRIPSI DATA MENGGUNAKAN TINY ENCRYPTION ALGORITHM (TEA) BERBASIS JAVA Liana Liana; Sutardi Sutardi; Nur Fajriah Muchlis
semanTIK Vol 4, No 1 (2018): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.954 KB) | DOI: 10.55679/semantik.v4i1.4243

Abstract

The need for data security is increasing along with the development of digital technology. Almost all communication and transaction activities are now done digitally so that worries about missing data will increase. Data is very important, so accuracy and precision of data is needed in the decision-making process. The importance of the value of a data causes the availability of data security, therefore data falls precisely and accurately to the right partyIn this study designed a data security application. Encryption method is used to secure data by applying algorithm of Tiny Encryption Algorithm (TEA). In the encryption process performed 16 rounds where each round consists of; additions, key substitutions, and data, and XOR.The results of the study built a data security application that can secure data by applying the algorithm Tiny Encryption Algorithm (TEA). From the test results prove that application is able to secure extension txt and docx. The larger the size of the encrypted data the more time it takes for the encryption process. Keywords— Data, TEA, Encryption, Decryption DOI : 10.5281/zenodo.1402400 
APLIKASI KAMUS TANAMAN OBAT MEGGUNAKAN ALGORITMA BOYER MOORE BERBASIS ANDROID Sumarni Sumarni; Sutardi Sutardi; Rizal Adi Saputra
semanTIK Vol 3, No 2 (2017): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1348.207 KB) | DOI: 10.55679/semantik.v3i2.3769

Abstract

Dengan semakin berkembangnya ilmu pengetahuan dan teknologi, beberapa jenis buku tanaman herbal yang ada di perpustakaan atau yang beredar dibeberapa toko buku dirasa masih kurang memenuhi kebutuhan manusia dan kurang praktis dalam menggunakannya karena bentuk buku yang tebal. Demikian juga yang dialami beberapa mahasiswa ataupun masyarakat sangat kesulitan bila harus membawa buku kemanapun dia pergi, sehingga diharapkan ada aplikasi berbasis mobile yang bisa membantu para mahasiswa ataupun masyarakat secara umum yang ingin mencari  tanaman herbal secara praktis dan efisien.Aplikasi Kamus tanaman obat berbasis android berhasil dibangun   dengan Algoritma Boyer Moore  dan dapat berjalan dengan baikdan Implementasi Algoritma Boyer Moore dalam pencarian nama tanaman pada aplikasi kamus tanaman obat sesuai dengan perencanaan. Semua nama tanaman berhasil ditampilkan dengan persentase keberhasilan 100% .Kata kunci—Boyer Moore,Kamus, Aplikasi Mobile, Android, Tanaman  Obat
RANCANG BANGUN APLIKASI PERHITUNGAN RENCANA ANGGARAN BIAYA (RAB) PEMBANGUNAN RUMAH TINGGAL Muhammad Ridwan; Sutardi Sutardi; Bambang Pramono; Laode Muh. Golok Jaya
semanTIK Vol 4, No 1 (2018): semanTIK
Publisher : Informatics Engineering Department of Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.996 KB) | DOI: 10.55679/semantik.v4i1.4250

Abstract

The Budget Plan is one of the main processes in a project because it is the basis for creating a budget framework to be issued. The Budget Plan is indispensable for calculating a building or project with the many costs required for materials and wages, as well as other costs associated with building or project implementation. For that required a careful calculations of the total cost of manufacture, volume of work, type of work, material prices and wage handyman in accordance with Indonesian National Standard (SNI).The results of research that has been done is an application that can facilitate user activity to plan the cost of housing construction. With the menus contained in this application can help users to prepare for the needs of what is needed if you want to build a residence such as materials, wage handyman and the price of materials. In addition, it can reduce the level of human error in the calculation of cost analysis needsKeywords— Homes, Budget Plan, PHP Programming. DOI : 10.5281/zenodo.1402404