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Simulasi Kendali Pergerakan Mobile Robot Menggunakan Algoritma A-star dalam Menentukan Jarak Terpendek Suhendra, Tonny; Nugraha, Sapta; Yunianto, Anton Hexso; Uperiati, Alena
Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan Vol 6 No 1 (2017): Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan
Publisher : Fakultas Teknik Universitas Maritim Raja Ali Haji

Planning the path is one of the most important things in the world of robotics, especially autonomous robots, to be able to move the autonomous robot requires a path that will guide the movement, or steps to be taken next, can also be spelled out as the determination of the point of coordinates to be addressed so that the robot can move to destination by taking the nearest lane and guiding the robot not to take unnecessary steps. This research uses adaptive A-star algorithm as the shortest path finding algorithm, the algorithm used is the development of A-star algorithm so that it can perform path search gradually and done repeatedly to determine every step that must be taken robot in the future and this algorithm belongs to a simple algorithm in a family heuristic algorithm. The test environment is built using Netlogo 5.3.1 Application, an agent-based application developed by Uri Wilensky at the center for Connected Learning and Compute-based Modeling at Northwestern University. The results of the tests have shown that the adaptive A-star algorithm can perform the optimal shortest path search and not trapped in the optimal local conditions with a standard deviation of 0.422%.

Kendali Kecepatan Motor DC dengan Metode Pulse Width Modulation menggunakan N-channel Mosfet Suhendra, Tonny; Uperiati, Alena; Purnamasari, Dwi Amalia; Yunianto, Anton Hekso
Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan Vol 7 No 2 (2018): Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan
Publisher : Fakultas Teknik Universitas Maritim Raja Ali Haji

The DC motor is one component of robot, the main function of a DC motor is as a driver, whether its a legged robot or not, as used in a mobile robot. DC motor control is necessary to be one thing that must be considered, because if the motor does not run properly, it will renew the purpose of the motor when it is created. The ability to control a DC motor is needed when building a robot. Many things can affect a personâs ability to design DC motor controller, one of which is the development of science, especially computer science, the use of algorithms to achieve the effectiveness of DC motor movements is very necessary today, so that the robot can move well and according to what is desired. The algorithm requires some information from the system that is built either as input or output so that the algorithm can perform the control process properly. in this study the motor speed controller circuit has been designed using transistor IR630 (n-channel mosfet), in this study the motor speed controller circuit has been designed using transistor IR630 (n-channel mosfet), the potentiometer is used as an analog input on the microcontroller and then converted to a PWM signal which will be used as input to the controller circuit to drive a DC motor. In the tests that have been carried out, the results obtained that the motor can be controlled properly, the use of resistors with a certain amount (220 ohms) can increase the resulting motor rotation and at what voltage the motor starts to spin at a voltage of 0.436 volts, and continues to increase and the maximum voltage recorded at 6.40 Volts.

Bisnis Online UMKM melalui Aplikasi E-Commerce untuk Pemasaran di Tengah Pandemik: Online Business UMKM with E-Commerce for Marketing during a Pandemic Alena Uperiati Alena; Eka Suswaini; Tekad Matulatan; Dwi Amalia Purnamasari; Nurfalinda Nurfalinda
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 7 No 3 (2022): Desember
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/j-dinamika.v7i3.3405

Dalam situasi pandemic covid 19 seperti sekarang ini kami berfikir, bagaimana meningkatkan kesejahteraan UMKM pada bisnis Donat Mini (Domi) dengan tetap mematuhi protokol kesehatan. Maka kami membuatkan aplikasi E-Commerce dimana pemasaran akan dilakukan secara online. Dengan adanya sistem aplikasi E-Commerce ini nantinya akan memudahkan UMKM Domi dan masyarakat untuk tetap bisa melakukan transaksi jual-beli tanpa harus bertatap muka dan berkerumun antri di toko. Dengan begitu protokol kesehatan dapat dijaga untuk menjaga jarak dan kebutuhan konsumen terpenuhi. Aplikasi E-Commerce ini memiliki berbagai fitur fungsi utama antara lain adalah memberikan layanan teknis, informasi, dan promosi tentang jenis usaha yang diperjualkan kepada masyarakat. Aplikasi E-Commerce ini juga menjadi jembatan bagi masyarakat sebagai pemanfaatan teknologi dalam memenuhi kebutuhan.

PROJECT-BASED LEARNING PERFORMANCE MEASUREMENT USING VIKOR METHOD AND RANK ORDER CENTROID Ahmadi Irmansyah Lubis; Supardianto Supardianto; Metta Santiputri; Noper Ardi; Alena Uperiati
JURTEKSI (Jurnal Teknologi dan Sistem Informasi) Vol 10, No 3 (2024): Juni 2024
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurteksi.v10i3.2853

Abstract: Project-Based Learning is a type of learning that is quite widely recommended today, especially in vocational type institutions where the learning is effective in the aim of involving students with direct learning content. The process of evaluating project-based learning on project teams in the performance assessment of each team to rank the order of best performance of all teams is still assessed based on subjective assessments. To overcome these problems, in this study the performance measurement of the project-based learning team by applying the VIKOR method and Rank Order Centroid in conducting assessments with test samples, namely in the Introduction to Database course. The test results obtained based on the calculation of VIKOR and Rank Order Centroid, namely PBL-TRPL01 Team 1 as the best alternative by obtaining based on variations of testing the VIKOR index value with values v=0.4, v=0.5, and v=0.6. Thus, it can be seen that the VIKOR and Rank Order Centroid methods can be applied to the calculation process of measuring team performance in project-based learning. Keywords: decision Support System; project-based learning; rank order centroid; VIKOR Abstrak: Pembelajaran Berbasis Proyek merupakan jenis pembelajaran yang cukup banyak direkomendasikan di masa kini khususnya pada institusi berjenis vokasional. Pembelajaran tersebut efektif dalam tujuan melibatkan para peserta didik dengan konten pembelajaran secara langsung. Proses evaluasi pembelajaran berbasis proyek pada tim proyek dalam penilaian performa dari masing-masing tim untuk memeringkatkan urutan performa terbaik dari seluruh tim masih dinilai berdasarkan penilaian secara subyektif. Untuk mengatasi persoalan tersebut, pada penelitian ini pengukuran performa tim project-based learning dengan menerapkan metode VIKOR dan Rank Order Centroid dalam melakukan penilaian dengan sampel pengujian yaitu pada mata kuliah Pengantar Basis Data. Hasil pengujian yang diperoleh berdasarkan perhitungan VIKOR dan Rank Order Centroid yaitu bahwa alternatif PBL-TRPL01 Tim 1 sebagai alternatif terbaik dengan peroleh berdasarkan variasi pengujian nilai indeks VIKOR. Maka dengan demikian, dapat diketahui bahwa metode VIKOR dan Rank Order Centroid dapat diterapkan pada proses perhitungan pengukuran performa tim pada pembelajaran berbasis proyek. Kata kunci: pembelajaran berbasis proyek; rank order centroid; sistem pendukung keputusan; VIKOR

IMPLEMENTASI SISTEM KEAMANAN LOKER BERBASIS WIRELESS SENSOR NETWORK DI PERPUSTAKAAN PUSAT UMRAH: Implementasi Sistem Keamanan Loker Berbasis Wireless Sensor Network di Perpustakaan Pusat UMRAH Putra, Riski; Uperiati, Alena; Suhendra, Tonny; Purnamasari, Dwi Amelia
Sustainable Vol 12 No 1 (2023): Jurnal Sustainable : Jurnal Hasil Penelitian dan Industri Terapan
Publisher : Fakultas Teknik Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/sustainable.v12i1.4751

Perkembangan teknologi dan sistem automasi berkembang semakin pesat. Kemajuan teknologi turut membantu dalam pengembangan sistem keamanaan menjadi lebih baik. Pada awalnya sistem keamanaan pada loker dilakukan secara manual dan kurang praktis dibandingkan dengan sistem teknologi saat ini. Hal ini membuat peneliti melakukan inovasi membangun sistem keamanan loker pada perpustakaan menggunakan RFID berbasis Wireless Sensor Network, dan tidak lagi menggunakan kunci konvensional sebagai akses membuka loker. Harapannya keberadaan suatu barang yang berada di loker dapat dilakukan monitoring dalam layar atau informasi node, baik dalam tampilan layar dan penyimpanan database sehingga memastikan kondisi loker tetap aman. Berdasarkan hasil penelitian yang dilakukan dapat disimpulkan bahwa sistem keamanan loker Menggunakan metode prototype berhasil diimplementasikan dalam membangun sistem keamanan loker menggunakan RFID berbasis Wireless Sensor Network yaitu, sistem keamanan loker berbasis RFID RC522 telah berhasil dibuat dan dapat bekerja dengan baik sesuai rancangannya. Sistem keamanan loker berbasis RFID ini menggantikan kunci konvensional menjadi card RFID yang dapat membuka loker dan sistem keamanan loker juga dapat dimonitoring melalui web dan perangkat ini tersambung dengan jaringan Wi-Fi.

Pengembangan dan Implementasi Sistem Informasi Kelurahan Berbasis Website (Studi Kasus: Kantor Kelurahan Pulau Buluh, Kota Batam) Irmansyah Lubis, Ahmadi; Uperiati, Alena; Supardianto, Supardianto; Ardi, Noper; Sartikha, Sartikha; Thohari, Ahmad Hamim; Dzikri, Afdhol; Sembiring, Evaliata Br.
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 5 No. 2 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i2.6868

Di era globalisasi saat ini perkembangan teknologi informasi dan komunikasi berkembang sangat pesat sebagaimana yang diketahui. Perkembangan tersebut tidak hanya di wilayah perkotaan saja, melainkan sampai menyentuh ke wilayah pedesaan. Begitu juga pada Kelurahan Pulau Buluh, Kecamatan Bulang, Kota Batam, Provinsi Kepulauan Riau yang dalam rutinitasnya memiliki tugas pokok dan fungsi dalam melaksanakan menjalankan kebijakan pemerintahan, keamanan dan ketertiban dengan berbagai tugas yang diemban seperti pengurusan administrasi yang meliputi surat pernyataan penguasaan tanah, surat keterangan tanah, ahli waris, surat keterangan kematian, surat keterangan kelahiran, keterangan pindah dan pada pelayanan pengaduan dan sebagainya. Berdasarkan observasi yang dilakukan, dalam melaksanakan tugas dan fungsinya tersebut, kantor kelurahan pulau buluh belum mempunyai sistem informasi yang dapat menunjang kegiatan pelayanan terhadap masyarakat. karena semua sistem masih dilakukan secara manual dengan berbasis kertas. Maka diperlukan suatu Sistem Informasi Kelurahaan yang dapat digunakan dalam mengelola pengarsipan serta menjaga data-data administrasi kependudukan agar dapat dikelola untuk jangka panjang. Adapun tujuan dari kegiatan Pengabdian kepada Masyarakat ini merupakan suatu langkah dalam upaya membantu pihak pegawai di Kelurahan Pulau Buluh dalam perancangan suatu Sistem Informasi Kelurahan yang diterapkan dalam bentuk website berbasis OpenSID. Adapun luaran hasil akhir dari kegiatan pengabdian kepada masyarakat ini yaitu terbangunnya suatu aplikasi sistem informasi kelurahan website berbasis OpenSID serta luaran-luaran penting dalam mempublikasikan hasil dari kegiatan pengabdian kepada masyarakat ini kepada khalayak umum.

Edukasi Pengelolaan Sampah Sisa Makanan (Organik) untuk Pemuda Kota Batam Sartikha, Sartikha; Maria, Maria; Rokhayati, Yeni; Santiputri, Metta; Zega, Selly Artaty; Mufida, Miratul Khusna; Uperiati, Alena; Supardianto, Supardianto; Lumombo, Liony
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 6 No. 2 (2024): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v6i2.8882

Environmental-friendly organic waste management is crucial for supporting sustainability, especially with the high volume of household waste. This community service project aims to educate the public, particularly the youth, about organic waste management through the use of eco enzyme technology. The education process involves eco enzyme practitioners and youth, facilitated by online-accessible video tutorials and social media campaigns to expand the reach of the information. Various activities, including socialization, education, and a challenge to create eco enzyme tutorial videos, were conducted to enhance participants' understanding and involvement. Evaluation through questionnaires completed by 156 respondents showed a significant increase in participants' knowledge regarding eco enzyme, its preparation methods, and benefits. The level of interest in using eco enzyme reached 94.23%, and the perceived benefits of the socialization process were 95.51%. Thus, this project successfully raised awareness and encouraged youth participation in sustainable organic waste management, which is expected to contribute positively to the environment in Batam City, Riau Island, Indonesia.

PROJECT-BASED LEARNING PERFORMANCE MEASUREMENT USING VIKOR METHOD AND RANK ORDER CENTROID Irmansyah Lubis, Ahmadi; Supardianto, Supardianto; Santiputri, Metta; Ardi, Noper; Uperiati, Alena
JURTEKSI (jurnal Teknologi dan Sistem Informasi) Vol. 10 No. 3 (2024): Juni 2024
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Royal Kisaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurteksi.v10i3.2853

Abstract: Project-Based Learning is a type of learning that is quite widely recommended today, especially in vocational type institutions where the learning is effective in the aim of involving students with direct learning content. The process of evaluating project-based learning on project teams in the performance assessment of each team to rank the order of best performance of all teams is still assessed based on subjective assessments. To overcome these problems, in this study the performance measurement of the project-based learning team by applying the VIKOR method and Rank Order Centroid in conducting assessments with test samples, namely in the Introduction to Database course. The test results obtained based on the calculation of VIKOR and Rank Order Centroid, namely PBL-TRPL01 Team 1 as the best alternative by obtaining based on variations of testing the VIKOR index value with values v=0.4, v=0.5, and v=0.6. Thus, it can be seen that the VIKOR and Rank Order Centroid methods can be applied to the calculation process of measuring team performance in project-based learning. Keywords: decision Support System; project-based learning; rank order centroid; VIKOR Abstrak: Pembelajaran Berbasis Proyek merupakan jenis pembelajaran yang cukup banyak direkomendasikan di masa kini khususnya pada institusi berjenis vokasional. Pembelajaran tersebut efektif dalam tujuan melibatkan para peserta didik dengan konten pembelajaran secara langsung. Proses evaluasi pembelajaran berbasis proyek pada tim proyek dalam penilaian performa dari masing-masing tim untuk memeringkatkan urutan performa terbaik dari seluruh tim masih dinilai berdasarkan penilaian secara subyektif. Untuk mengatasi persoalan tersebut, pada penelitian ini pengukuran performa tim project-based learning dengan menerapkan metode VIKOR dan Rank Order Centroid dalam melakukan penilaian dengan sampel pengujian yaitu pada mata kuliah Pengantar Basis Data. Hasil pengujian yang diperoleh berdasarkan perhitungan VIKOR dan Rank Order Centroid yaitu bahwa alternatif PBL-TRPL01 Tim 1 sebagai alternatif terbaik dengan peroleh berdasarkan variasi pengujian nilai indeks VIKOR. Maka dengan demikian, dapat diketahui bahwa metode VIKOR dan Rank Order Centroid dapat diterapkan pada proses perhitungan pengukuran performa tim pada pembelajaran berbasis proyek. Kata kunci: pembelajaran berbasis proyek; rank order centroid; sistem pendukung keputusan; VIKOR

Optimalisasi Peran Kader Posyantek dalam Pemanfaatan Sumber Daya Alam Lokal Di Desa Teluk Bakau Kecamatan Gunung Kijang Kabupaten Bintan Kepri Suswaini, Eka; Uperiati, Alena; Purnamasari, Dwi Amalia; Chahyadi, Ferdi; Nurfalinda, Nurfalinda; Hekso, Anton
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 3 No 2 (2020): Volume 3 Nomor 2 Tahun 2020
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v3i2.13926

The Bintan Regency Government through the Village Community Empowerment Service (PMD) established Posyantek (Pos Technology Services) in 2018. Posyantek is a Technology Service that is spread out from the smallest villages, sub-districts and districts. Based on the Minister of Home Affairs regulation No. 20 of 2010 concerning Community Empowerment through Appropriate Technology Management and also Minister of Home Affairs Instruction No. 24 of 1998 concerning Posyantekdes operations. The purpose of establishing a posyantek is how to improve the welfare of the community. Posyantek has various main types which include providing technical services, information, and promotion of various types of TTG to the community, increasing the quality and quantity of various types of products produced by the community, both small and medium enterprises (SMEs), posyantek is also expected to be a bridge for the community to use TTG in the context of utilizing TTG (Appropriate Technology). The purpose of community service is carried out as an effort to support the important role of the presence of technology in community life as one of the factors driving change and also accelerating development both in the economic, and social and cultural fields. In the process of implementing Posyantek Posyantek operations in the Regency of Bintan is developing a process of designing activities programs, in line with this the need for synergy of interference and support from related parties including educational institutions in the Maritime University of Raja Ali Haji. Assistance and training are given to posyantek cadres in carrying out work programs in accordance with the output expected by the government and the community.

Evaluating Lexicon Weighting and Machine Learning Models for Sentiment Classification of Indonesian Mangrove Ecotourism Reviews Chahyadi, Ferdi; Uperiati, Alena; Pratiwi , Risdy Absari Indah; Hamid, Nur
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 6 (2025): JUTIF Volume 6, Number 6, Desember 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.6.5563

Sentiment analysis on ecotourism reviews presents specific challenges due to descriptive writing styles, the use of ambiguous words, and contextual meaning shifts (contextual polarity shift). These characteristics often cause lexicon-based approaches to produce unstable polarity labels. This study aims to evaluate the influence of two lexicon weighting methods, namely Mean Weighting and Summation Weighting, on the initial sentiment labeling of mangrove ecotourism reviews and to assess the performance of machine learning models trained using these labels. The research method includes text preprocessing, lexicon-based scoring using the InSet lexicon, feature extraction with Term Frequency–Inverse Document Frequency (TF–IDF), and the training of two classification algorithms, Support Vector Machine (SVM) and Logistic Regression (LR). The results show that the Mean Weighting method produces more stable polarity scores and higher model performance. The combination of SVM with Mean Weighting achieves the best results with an accuracy of 0.902, macro precision of 0.876, macro recall of 0.819, a macro F1-score of 0.841, and a weighted F1-score of 0.899. Meanwhile, LR with Mean Weighting reaches an accuracy of 0.891 with a similar performance pattern. In contrast, the Summation Weighting method results in lower performance for both algorithms. Error analysis indicates that neutral sentences and ambiguous words such as “bagus” and “ramai” frequently lead to misclassification. These findings highlight that the choice of lexicon weighting method plays a crucial role in improving sentiment classification accuracy and contributes to the development of hybrid approaches in text mining and sentiment analysis for the Indonesian language.

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