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Telematika : Jurnal Informatika dan Teknologi Informasi
Published by Universitas Pembangunan Nasional Veteran Yogyakarta
ISSN : 1829667X     EISSN : 24609021     DOI : 10.31315
Core Subject : Engineering,
Electrical & Electronics Engineering
Arjuna Subject : -
Articles 361 Documents
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APLIKASI PENGOLAHAN CITRA DIGITAL UNTUK IDENTIFIKASI UMUR POHON Nadzir Zaid Munantri; Herry Sofyan; Mangaras Yanu Florestiyanto
Telematika Vol 16, No 2 (2019): Edisi Oktober 2019
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v16i2.3183

Abstract

determined from several factors. One factor is the knowledge of the age of trees. Age of trees can be known through the circle of years on wood or also called growth. From the considerations above the formula issued is how to make a growth calculation system that is able to calculate by computer calculation, so we need an analysis to determine the age of the tree with growth. To support growth in wood one method that can be used is edge detection. The first stage in the process is grayscale which is done changing the RGB color image to gray, then the sobel edge detection process works to display the outline / edge of the image, then the calculation process is carried out with the formula.Keywords : image processing, annual ring, growthring, edge detection, sobelKualitas kayu yang baik dapat ditentukan dari beberapa faktor. Salah satu faktor itu adalah dengan mengetahui usia pohon. Usia pohon dapat diketahui berdasarkan lingkaran tahun pada kayu atau disebut juga dengan growthring. Dari permasalahan diatas rumusan masalahnya adalah bagaimana membuat sistem penghitungan growthring yang mampu menghitung dengan perhitungan komputer, maka diperlukan suatu analisis untuk mengetahui umur pohon dengan growthring. Untuk mendeteksi growthring pada kayu salah satu metode yang bisa digunakan adalah menggunakan edge detection. Tahapan yang pertama dilakukan proses dilakukan adalah proses grayscale yang dimana berfungsi mengubah gambar warna RGB menjadi abu abu, kemudian proses edge detection sobel yang berfungsi menampilkan garis tepi/tepian gambar, kemudian dilakukan proses perhitugan dengan rumus.Kata Kunci : pegolahan citra, lingkar tahun, growthring, edge detection, sobel 
Kerangka Investigasi Forensik Pada Peladen Pertukaran Berkas Samba Berdasarkan SNI ISO/IEC 27037:2014 Dedy Haryadi; Abdul Rohman Supriyono
Telematika Vol 14, No 1 (2017): Edisi April 2017
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v14i01.1967

Abstract

Network File System (NFS) dan Common Internet File System (CIFS) merupakan protokol yang biasa dipakai dalam melakukan pertukaran berkas di dalam sebuah jaringan komputer yang terhubung dengan Network Attached Storage. Mudahnya dalam bertukar berkas dalam sebuah jaringan tidak menutup kemungkinan adanya pertukaran berkas yang bersifat ilegal ataupun berkas yang mengandung tindak kejahatan. Oleh karena itu, diperlukan sebuah model pendekatan investigasi forensik dalam proses pertukaran berkas di sebuah jaringan komputer. Proses akuisisi dalam penelitian ini dilakukan dengan 2 model, yaitu: akuisisi secara langsung pada mesin peladen file-sharing dan akuisisi secara langsung melalui jaringan. Akuisisi secata langsung pada mesin peladen berfokus pada proses akuisisi log dari mesin peladen yang dihasilkan dari layanan samba dan direktori pertukaran berkas. Akusisi secara langsung melalui jaringan berfokus pada direktori pertukaran berkas yang diakses oleh pengguna. Model akuisisi ini berdasarkan SNI ISO/IEC 27037:2014 tentang Pedoman Identifikasi, Pengumpulan, Akuisisi dan Preservasi Bukti Digital yang fokus pada barang bukti elektronik kritis dengan kondisi tidak diperkenankan mati atau shutdown. 
PENCARIAN FILE PADA ANDROID BERBASIS SUFFIX TREE CLUSTERING DENGAN DUKUNGAN WORDNET Adi Wibowo; Justinus Andjarwirawan; David Valentino
Telematika Vol 15, No 1 (2018): Edisi April 2018
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v15i1.3061

Abstract

Finding a specific file in Android devices is not an easy task. Not many apps can search by files’ contents and find terms similarities between user’s queries and files’ terms. This research proposed using Suffix Tree Clustering to index files contents, and WordNet to expand user’s query terms. This research used waterfall as research methodology to built a search engine prototype. There are five steps to index files, i.e. listing and parsing, preprocessing, clustering, merging of clusters, and storing cluster data into database. If a user wants to search files, the prototype will expand user’s query terms using WordNet’s synsets and compare them with clusters stored in a database. The results of this research show that suffix tree clustering and multithreading can be used to index files’ contents, and term expansion can help users to find clusters similar with user’s query terms.
Integrasi Aplikasi Layanan Publik Menggunakan Sistem Antrian Berbasis Digital Signage Heru Cahya Rustamaji; Rifki Indra Perwira; Eko Budi Hartono
Telematika Vol 15, No 2 (2018): Edisi Oktober 2018
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v15i2.3124

Abstract

AbstractPublic services are defined as a series of activities in the allocation of community needs services. The type of manual service that is currently carried out is far from being accountable and transparent. Public services that provide the community must be good, effective and efficient. To increase the level of public services in government agencies, a system is needed in carrying out services. In this study a public service queue system was created which integrated various types of public services in the administration section with a public service information board based on Digital Signage. The queue system is expected to break down the current disturbances. The system development method used is GRAPPLE which facilitates the needs, analysis, development and distribution of systems. The results of this study are Android-based Queue System Integration with Public Service Information Based on Digital Signage. The results of the tests carried out on the system through 2 stages, namely Alpha Test and Beta Test. At the Alpha Test stage, the percentage of approval level was 96.8%, while in the Beta Test stage, the percentage of approval level was 96.5% and it can be concluded that the system works well and can be done even though some can become developers in the next research. Keywords: queuing system, integration, GRAPPLE, digital signage AbstrakPelayanan publik diartikan sebagai rangkaian kegiatan dalam upaya memenuhi kebutuhan pelayanan masyarakat. Jenis pelayanan manual yang dilakukan saat ini masih jauh dari faktor akuntabilitas dan transparansi. Pelayanan publik yang diberikan kepada masyarakat harus baik, efektif dan efisien. Untuk meningkatkan tingkat pelayanan publik di instansi pemerintah maka dibutuhkan sebuah sistem yang mempermudah dalam melakukan pelayanan. Pada penelitian kali ini dibuatlah sebuah sistem antrian pelayanan publik yang mengintegrasikan seluruh jenis pelayanan publik yang ada pada instansi pemerintahan dengan papan informasi layanan publik berbasis Digital Signage. Sistem antrian tersebut diharapkan dapat mengurai permasalahan yang ada saat ini. Metode pengembangan sistem yang digunakan yaitu GRAPPLE yang meliputi tahapan pengumpulan kebutuhan, analisis, perancangan, pengembangan, dan penyebaran sistem. Hasil dari penelitian ini yaitu Integrasi Sistem Antrian Berbasis Android dengan Informasi Layanan Publik berbasis Digital Signage. Hasil pengujian yang dilakukan pada sistem melalui 2 tahapan yaitu Alpha Test dan Beta Test. Pada tahap Alpha Test telah menghasilkan persentase tingkat persetujuan 96,8% sedangkan pada tahap Beta Test menghasilkan persentase tingkat persetujuan 96,5% dan dapat ditarik kesimpulan bahwa sistem berfungsi dengan baik dan dapat digunakan meskipun masih terdapat kekurangan yang dapat menjadi pengembang pada penelitian berikutnya. Kata Kunci : sistem antrian, integrasi, GRAPPLE, digital signage
APLIKASI SIMULASI BERBASIS WEB UNTUK SUHU DAN KALOR PADA MATA PELAJARAN FISIKA BAGI SISWA SMA KELAS X Breat Prasetyo; Hafsah Hafsah
Telematika Vol 10, No 1 (2013): Juli 2013
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v10i1.381

Abstract

Physics is one of the subjects studied in high school . Many argue that one of the lessons of physics become less desirable , one reason because physics contains many abstract concepts and magnitudes . One material that is in high school physics is fluid mechanics , including fluid static and dynamic fluid . Static fluid include law pascal and archimedes law , while the law include the dynamic fluid continuity and Bernoulli law . During this learning method is applied mostly still conventional , inside delivery media still use the board as well as the extent of the image of the book . Still at least the lack of visualization of dynamic and interactive learning media that makes the lack of interest in learning physics , it made for a multimedia -based simulation applications of fluid mechanics in physics . The method used in the design and manufacture of this application is the waterfall methodology and multimedia development stages. Software used in the making of this application is Adobe Flash CS3 with actionscript 2.0 programming language for multimedia applications . While web applications built using PHP and MySQL software .
Perbaikan Performansi Klasifikasi Dengan Preprocessing Iterative Partitioning Filter Algorithm Djoko Budiyanto Setyohadi; Felix Ade Kristiawan; Ernawati Ernawati
Telematika Vol 14, No 1 (2017): Edisi April 2017
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v14i01.1960

Abstract

Preprocessing data and preprocessing performance analysis are crucial in datamining. Those two points have great impact to data mining process success rate, because aquality decisions must be based on quality data. Preprocessing is useful to increase the qualityof data and to reduce the noise data. Our experiment show that the performance iterativepartitioning filter algorithm is tested by using some dataset from University of California, Irvine(UCI) Machine Learning Repository and is simulated by using modified iterative partitioningfilter's parameter variation. This experiment also explained how to analyze classification resultfrom a preprocessed dataset using Backpropagation, so that it can identify best accuracy frommultiple datasets that have been tested. Final result from this experiment is table of data consistof training time, classification accurarcy, classification error, Kappa statistic, Mean AbsoluteError (MAE) or average of iterations error, Root mean squared error and confusion matrix. Thisfinal result is presented in ratio chart between experiment result and modified iterativepartitioning filter's parameter
SISTEM PAKAR BERBASIS WEB UNTUK MENDIAGNOSA PENYAKIT KULIT Paryati Paryati
Telematika Vol 7, No 2 (2011): Edisi Januari 2011
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v7i2.423

Abstract

Human skin consists of various layers either protected or very sensitive to outside attack such as from the surrounding. Today there are many inventions in connection with the skin disease where many skin bacterias and viruses attack the human either from the surroundings, climate or temperature even from direct contact with the wet nurse or mother of virus. Skin disease which is suffered by the people is easy to wide spread because of lack information and knowledge about skin disease. This system is made in order that the skin sufferers know and understand the kind of skin disease which they get and this system gives some solutions and preventions in accordance with the disease circle. The method which is used in the plan and development is waterfall method. The application which is used to make this expert system programme is Dreamweaver, XAMPP, Adope Photoshop, Mysql, Opera. The result of this research is in the form of application programme that can help the user know the kinds of skin disease and also know the technique or theraphy and the way of prevention.
APLIKASI AUTOREPLY SMS MENGGUNAKAN PEMROGRAMAN MATLAB Frans Richard Kodong
Telematika Vol 12, No 1 (2015): Edisi Januari 2015
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v12i1.626

Abstract

Aplikasi Autoreply merupakan salah satu cara yang praktis dalam berkomunikasi antara clientdan SMS Gateway dalam bentuk implementasi interaktif berbagai layanan publik. Pemanfaatanaplikasi Autoreply menggunakan MATLAB pada bidang rekayasa khususnya teknik komputasimasih sangat kurang. Pada penelitian ini akan dibangun aplikasi Autoreply menggunakanXAMPP, Gammu, Modem Wavecom Fastrack, dan pemrogramannya menggunakan MATLAB2013. Metode pengembangan aplikasi menggunakan Prototype
WEB CONTENT MINING DI SEKTOR PERBANKAN PADA LQ45 UNTUK PENDUKUNG KEPUTUSAN INVESTASI SAHAM Nehu Chandra Citra Ayu Phitaloka; Dessyanto Boedi Prasetyo; Rifki Indra Perwira
Telematika Vol 16, No 1 (2019): Edisi April 2019
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v16i1.2989

Abstract

AbstractInvestment is an activity that is very financially profitable, and also an activity that has a high risk. The investment process includes understanding the basics of investment decisions and how to organize activities in the decision-making process. In the world of investment business, especially stocks, price information can change rapidly depending on offers that occur on the trading floor and other aspects which are also very influential. Information in the form of stock news with web content mining is one of the fundamental analyzes. Web content mining utilizes crawling as the content of news content. News content is done by taking content from the website detik.com, cnnindonesia.com, and kontan.co.id. The research methodology used is waterfall. The results of the study are able to provide convenience in making stock investment decisions. Ease in this case is the process when the user can directly analyze using fundamental analysis on an investment decision support system.Keywords: Decision Support, Fundamental Analysis, Web Content Mining, CrawlingAbstrakInvestasi merupakan suatu kegiatan yang sangat menguntungkan secara finansial, dan juga merupakan kegiatan yang mempunyai resiko tinggi. Proses investasi meliputi pemahaman dasar-dasar keputusan investasi dan bagaimana mengorganisir aktifitas-aktifitas dalam proses pengambilan keputusan. Dalam dunia bisnis investasi khususnya saham, informasi harga bisa berubah dengan cepat tergantung penawaran yang terjadi di lantai bursa dan juga aspek-aspek lain yang juga sangat berpengaruh. Informasi berupa berita saham dengan web content mining merupakan salah satu analisis fundamental. Web content mining memanfaatkan crawling sebagai pengambilan isi konten berita. Konten berita dilakukan dengan mengambil isi konten dari website detik.com, cnnindonesia.com, dan kontan.co.id. Metodologi penelitian yang digunakan yaitu waterfall. Hasil dari penelitian yaitu mampu memberikan kemudahan dalam mengambil keputusan investasi saham. Kemudahan dalam hal ini adalah proses pada saat pengguna bisa menganalisis secara langsung menggunakan analisis fundamental pada sebuah sistem pendukung keputusan investasi.Kata Kunci : Pendukung Keputusan, Analisis Fundamental, Web Content Mining, Crawling
APLIKASI PERPUSTAKAAN DIGITAL PADA FAKULTAS TEKNOLOGI INDUSTRI UPN “VETERAN” YOGYAKARTA Wisnu Tri Nugroho
Telematika Vol 9, No 2 (2013): Edisi Januari 2013
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/telematika.v9i2.290

Abstract

UPN Veteran Yogyakarta central library is already implementing information systems inlibraries or short bias CYPRUS. However, the library information system only to simplify theprocess of borrowing and book search and have not been able to display books directly. Underthe system, students or faculty who want to read the book should make the process ofborrowing books or come directly to the library, so in terms of the efficiency of the service timeof course it is less effective. In order for the service to library users more effective, it isnecessary to Digital Library system that can accommodate the user needs to access acollection of books online. Construction of the Digital Library created first in small scale isdevoted to the Faculty of Industrial Technology UPN Veteran Yogyakarta. Digital library is builtusing web-based programming with PHP + AJAX programming language and MySQLdatabase. As for the appearance of the book pieces will be displayed in the form of animatedFlash Slideshow. System analysis method of making this application is the Data Flow Diagram(DFD) to describe the flow of data and Entity Relationship Diagram (ERD) as a depiction of therelationships between the entities table.Keyword : Digital Library, PHP, Ajax, MySQL Database, Flash Slideshow

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