Garuda - Garba Rujukan Digital

Sistem Informasi Forecasting Produksi Padi Menggunakan Metode Least Square Fikri, Moh Ali; Ghozali, Ahmad Lubis; Darsih, Darsih
Jurnal Sistem Informasi Bisnis Vol 15, No 1 (2025): Volume 15 Number 1 Year 2025
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/vol15iss1pp81-88

Agriculture has an important role in the commodity sector of the Indonesian people's economy. Indonesia is an agricultural country with extensive agricultural land. So it is truly ironic that Indonesia, as an agricultural country, has to import several basic food ingredients from abroad. Rice production data from year to year has decreased in Indonesia. If the decline in rice production continues in the future, Indonesia will not be able to cope with the increasing food needs of the people. More than 90% of the rice consumed by Indonesian people is self-produced. About 95% of this production is produced from rice fields. Indonesia's land area and territory are so large, a strategic step is needed that can overcome the problem of decreasing rice production. One step that can be taken is to mitigate rice production data by being able to read the data and process it into an appropriate source of information. One of the methods used is applying parameter estimation in regression analysis based on minimizing the sum of squares of the residuals created in the results of each individual equation, namely least squares. The data processed is rice harvest area, production and productivity by province in 2018-2020 and 2019-2023. The creation of the information system uses the PHP programming language version 8.2.4 which runs on the Apache 2.0 web server and the php-ml library. The research resulted in a forecast for rice production in 2024 of 52,676,827 tons, in 2025 of 51,936,919 tons, and in 2026 of 51,197,011 tons. Forecasting accuracy using the least squares method is very good with a MAPE value of 1.93%.

Application of Fuzzy Service Quality Method in Measuring Student Service Satisfaction Level Ghozali, Ahmad Lubis; Warsito, Budi; Fikri, Moh Ali
JTP - Jurnal Teknologi Pendidikan Vol. 27 No. 1 (2025): Jurnal Teknologi Pendidikan
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jtp.v27i1.54324

University services can be evaluated based on the quality of performance provided by faculty, administrative staff, and supporting institutional structures. Ensuring student satisfaction and minimizing complaints related to campus facilities are essential in enhancing the quality of higher education. This study aims to develop a method for measuring student satisfaction with campus services at Indramayu State Polytechnic using the fuzzy SERVQUAL technique. Data were collected through a questionnaire distributed to 100 students from three majors: Engineering, Informatics, and Nursing. The instrument used was both valid, with a 5% significance level, and reliable, as shown by a Cronbach's alpha score of 0.746. Data analysis involved comparing the gap between students’ perceptions and expectations across five service quality dimensions: tangibility, reliability, responsiveness, assurance, and empathy. The analysis revealed the largest gap in tangibility and the smallest in empathy. These findings indicate that while certain service aspects meet student expectations, others still require significant improvement. The results are expected to provide valuable input for the campus to enhance service quality and better align institutional performance with student needs. It is recommended that continuous evaluation and improvement efforts be implemented, particularly in the most critical service dimensions.

Web Based Dashboard of Airplane Turbulence Mitigation Ghozali, Ahmad Lubis; Kuresih, Kuresih; Cahyanto, Kurnia Adi; Iryanto, Iryanto; Gernowo, Rahmat
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 3 No. 11 (2024): JETBIS : Journal Of Economich, Technology and Business
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v3i11.158

Airplane accidents still occur frequently, one of which is caused by turbulence. To minimize the risk, an effective forecasting system is needed. This research focuses on developing a web-based dashboard for aircraft turbulence mitigation by considering factors such as convective cloud growth, Richardson number index, and wind shear. The dashboard was developed through four steps: requirement analysis, design, implementation, and verification. The Richardson number index (Ri) is calculated using a formula involving temperature and wind speed at different geopotential heights. Alert status is determined based on Ri values and other parameters, with three alert levels: 'Alert 1', 'Alert 2' and 'Alert 3'. The system provides alerts based on user input. If the cloud cover is less than 50%, the “Alert 1” status is displayed; if Ri < 0.25, the “Alert 2” status appears; and if the wind shear exceeds the threshold, the “Alert 3” status indicates that flights are prohibited. Pilot tests show that the system works well and the Ri calculation results are comparable to existing Richardson calculators. The dashboard allows users to access critical information related to turbulence and flight status in real-time, thereby improving flight safety. Timely alerts help in flight-related decision making. This research successfully developed a web-based dashboard for aircraft turbulence mitigation that works well. By monitoring convective cloud growth, Richardson number index, and wind shear, the system is able to provide relevant alerts to improve flight safety.

Web Based Dashboard of Airplane Turbulence Mitigation Ghozali, Ahmad Lubis; Kuresih, Kuresih; Cahyanto, Kurnia Adi; Iryanto, Iryanto; Gernowo, Rahmat
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 3 No. 11 (2024): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v3i11.158

Airplane accidents still occur frequently, one of which is caused by turbulence. To minimize the risk, an effective forecasting system is needed. This research focuses on developing a web-based dashboard for aircraft turbulence mitigation by considering factors such as convective cloud growth, Richardson number index, and wind shear. The dashboard was developed through four steps: requirement analysis, design, implementation, and verification. The Richardson number index (Ri) is calculated using a formula involving temperature and wind speed at different geopotential heights. Alert status is determined based on Ri values and other parameters, with three alert levels: 'Alert 1', 'Alert 2' and 'Alert 3'. The system provides alerts based on user input. If the cloud cover is less than 50%, the “Alert 1” status is displayed; if Ri < 0.25, the “Alert 2” status appears; and if the wind shear exceeds the threshold, the “Alert 3” status indicates that flights are prohibited. Pilot tests show that the system works well and the Ri calculation results are comparable to existing Richardson calculators. The dashboard allows users to access critical information related to turbulence and flight status in real-time, thereby improving flight safety. Timely alerts help in flight-related decision making. This research successfully developed a web-based dashboard for aircraft turbulence mitigation that works well. By monitoring convective cloud growth, Richardson number index, and wind shear, the system is able to provide relevant alerts to improve flight safety.

Traversal Using Relays Around Nat by Coturn for Webrtc Systems Raswa, Raswa; Lubis Ghozali, Ahmad; Adi Cahyanto, Kurnia
Journal of World Science Vol. 2 No. 2 (2023): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v2i2.224

Real-time communication between people in the form of audio, images, video, and data is now a necessity. Web Real-Time Communication Technology, WebRTC, is implemented as an open web standard and is available to build such communication. WebRTC requires a server that functions as both signaling and media servers. Signaling server for establishing communication channels, exchanging information, and synchronizing changes. Media servers exchange media, codecs, bandwidth, and rate control. Different Real-time Protocol (RTP) topologies have different requirements on servers, including those caused by the NAT configuration used. This research focuses on the role of the TURN server using CoTurn to create web-based real-time communication services. How is the quality of WebRTC service when CoTurn is a TURN server to pass signaling and media. The method used is divided into three stages, namely: (1) installation and configuration, (2) building WebRTC, and (3) testing. This study shows that real-time communication in the form of audio and video can be carried out even through a symmetrical NAT configuration. It is just that with more than five users in the WebRTC system, communication is slowing down. The proposed further research is developing and engineering the RTP topology to increase the number of users. The CoTurn application can be installed on a Virtual Private Server (VPS) and configured as a TURN Server as a media server service in the WebRTC system.

Peringkasan Multi-dokumen menggunakan Metode Pengelompokkan berbasis Hirarki dengan Multi-level Divisive Coefficient Mustamiin, Muhamad; Ghozali, Ahmad Lubis; Sifa, Muhammad Lukman
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 5 No 6: Desember 2018
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Peringkasan merupakan salah satu bagian dari perolehan informasi yang bertujuan untuk mendapatkan informasi secara cepat dan efisien dengan membuat intisari dari suatu dokumen. Dokumen-dokumen khususnya dokumen laporan setiap hari semakin bertambah seiring dengan bertambahnya pelaksanaan suatu kegiatan atau acara. Kebutuhan informasi yang semakin cepat, jumlah dokumen yang semakin bertambah banyak membuat kebutuhan akan adanya peringkasan dokumen semakin tinggi. Peringkasan yang digunakan untuk meringkas lebih dari satu dokumen disebut peringkasan multi-dokumen. Untuk mencegah adanya penyampaian informasi yang berulang pada peringkasan multi-dokumen, maka proses pengelompokkan diperlukan untuk menjamin bahwa informasi yang disampaikan bervariasi dan mencakup semua bagian dari dokumen-dokumen tersebut. Pengelompokkan hirarki dengan multi-level divisive coefficient dapat digunakan untuk mengelompokkan suatu bagian/kalimat dalam dokumen-dokumen dengan bervariasi dan mendalam yang disesuaikan dengan tingkat kebutuhan informasi dari pengguna. Bedasarkan dari tingkat kompresi peringkasan yang berbeda-beda, peringkasan menggunakan pengelompokkan hirarki dengan multi-level divisive coefficient dapat menghasilkan hasil peringkasan yang cukup baik dengan nilai f-measure sebesar 0,398 sementara nilai f-measure peringkasan dengan satu level divisive coefficient hanya mencapai 0,335.AbstractSummarization is one part of the information retrieval that aims to obtain information quickly and efficiently by making the essence of a document. Documents, especially document reports every day increasing as the implementation of an event. The need for information is getting faster, the increasing number of documents makes the need for document summaries is getting higher. Summarization used to summarize more than one document is called multi-document summarization. To prevent repetitive information from being submitted to multi-document summarization, the grouping process is necessary to ensure that the information submitted varies and covers all parts of the documents. Hierarchical clustering with multi-level divisive coefficient can be used to group a part / sentence in documents with varying and depth adjusted to the level of information needs of the user. Based on different compression levels of summarization, summarization using hierarchical clustering with multi-level divisive coefficient can produce a fairly good summary result with f-measure value of 0.398 while the f-measure summarization value with one level of divisive coefficient only reaches 0.335.

SMART E-COMMERCE UNTUK STRATEGI PEMASARAN GUNA PENINGKATAN PENJUALAN HASIL PERTANIAN (SiPeHtanI) Pramadhana, Dian; Amalia, Dita Rizki; Ghozali, Ahmad Lubis
Jurnal Ilmiah Rekayasa dan Manajemen Sistem Informasi Vol 10, No 2 (2024): Agustus
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/rmsi.v10i2.31937

Indonesia is known as an agriculture-based country, where the majority of its population works as farmers. The agricultural sector in Indonesia significantly contributes to supporting the national economy. Indramayu Regency, located in West Java Province, is famous as a national rice production center due to its major role in national rice production. However, many farmers are still disadvantaged due to the lengthy agricultural product marketing chain, which makes the marketing system inefficient. Farmers are limited to selling their produce only to local traders at lower prices. This situation needs improvement so that the agricultural products of the Indramayu community can be better enjoyed by both consumers and farmers. This research aims to develop an agricultural product sales information system by creating an e-commerce website. An e-commerce system can be an option for farmers, serving as a means for promotion, communication, and information delivery, while also reducing the distribution chain in agricultural product marketing. The development of marketing channels for agricultural products can influence the demand for production, thus encouraging increased production among farmers. Additionally, the prices offered to buyers are relatively cheaper, which can increase the sales of agricultural products and provide greater benefits to farmers.

Title

Found 27 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 27 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 27 Documents
Search