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All Journal JUITA : Jurnal Informatika Jurnal Inti Talafa : Jurnal Teknik Informatika Jurnal Digit : Digital of Information Technology Jurnal Rekayasa, Teknologi, dan Sains International Journal of Social Service and Research Indonesian Journal Of Educational Research and Review Edukasia: Jurnal Pendidikan dan Pembelajaran Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Journal of Community Service (Abdisci) Journal Of Engineering Sciences (Improsci) Jurnal Teknologi Informasi ITEJ (Information Technology Engineering Journals)
Wicaksono, Freddy
Universitas Muhammadiyah Cirebon
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Implementation of the Constraint Satisfication Problems Method in Genetic Algorithms for Course Scheduling Systems Isa Martinus, Agust; Budi Hartono, Mukhamad; Wicaksono, Freddy
Jurnal Improsci Vol 1 No 3 (2023): Vol 1 No 3 December 2023
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v1i3.149

Abstract

The creation of class schedules requires a high level of precision and focus to generate the best possible timetable. A schedule with the best solution can provide comfort for both faculty and students, thus enhancing the quality of early meetings during classes. However, in the engineering faculty of Muhammadiyah University Cirebon, classes often do not start simultaneously with other faculties due to the manual scheduling process. Addressing this issue, a system is needed to automate the creation of class schedules. By implementing the Constraint Satisfaction Problems method to impose constraints before evaluating the fitness values in the Genetic Algorithm, it can assist in searching for the best solutions in accordance with the scheduling requirements of each program in the Engineering faculty. The results of black box testing on the system, item code 06, demonstrate that the system can produce schedules that comply with the requirements of each program in the faculty.  
EXPERT SYSTEM FOR DIAGNOSING HEART DISEASE USING WEB-BASED ANALYTIC HIERARCHY PROCESS AND CERTAINTY FACTOR METHODS Hakim, Lukman; Wicaksono, Freddy; Bhakti, M.Herdian
INTI TALAFA Vol. 17 No. 1 (2025): Edisi Januari - Juni 2025
Publisher : Program Studi Teknik Informatika Universitas Muhammadiyah Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32534/int.v17i1.7159

Abstract

Health is the most valuable thing for humans, one example is that humans often forget about their heart health. The heart is one of the organs of the body that is very vital and has a very important role for humans. Basically, heart disease is often called a “silent killer”, based on World Health Organization (WHO) data that heart disease is the number one cause of death in the world. Therefore, a system is needed to help prevent heart disease and provide the right diagnosis and solution. This study aims to design a web-based expert system for diagnosing symptoms of heart disease in humans using the Analytical Hierarchy Process (AHP) and Certainty Factor (CF) methods. The Analytical Hierarchy Process (AHP) method determines the weight of the expert, while the Certainty Factor method calculates the diagnosis of user disease symptoms. The final results of the system show that the system is able to diagnose heart disease through the symptoms selected by the user. The system can also provide descriptions and appropriate handling solutions for diseases experienced by users.       Kata kunci: Sistem Pakar, Penyakit Jantung, Analytical Hierarchy Process, Certainty Factor
SISTEM PENDUKUNG KEPUTUSAN REKOMENDASI KARIR MAHASISWA MENGGUNAKAN AHP DAN SAW Freddy Wicaksono; Fajar Ghifari Nugroho; Agust Isa Martinus; Rosalin Theophilia Tayane
Jurnal Teknologi Informasi Vol 12 No 2 (2024): Jurnal Teknologi Informasi
Publisher : LPPM USTJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58839/jti.v12i2.1485

Abstract

Dalam menghadapi tantangan dunia kerja yang semakin kompetitif, pemilihan karir yang tepat menjadi langkah krusial bagi mahasiswa. Penelitian ini bertujuan untuk mengembangkan Sistem Pendukung Keputusan (SPK) yang memberikan rekomendasi karir bagi mahasiswa Teknik Informatika di Universitas Muhammadiyah Cirebon. Sistem ini memanfaatkan metode Analytical Hierarchy Process (AHP) untuk menentukan bobot kriteria dan Simple Additive Weighting (SAW) untuk perhitungan rekomendasi karir. Kriteria yang digunakan mencakup nilai mata kuliah, kemampuan, dan sertifikasi yang relevan. Data yang digunakan dikumpulkan melalui studi literatur, wawancara dengan dosen, serta masukan dari mahasiswa. Sistem yang dikembangkan diuji dengan data mahasiswa dan menunjukkan hasil rekomendasi yang sesuai dengan profil dan potensi mahasiswa. Berdasarkan pengujian yang dilakukan pada mahasiswa X dan Y terhadap beberapa karir, hasil menunjukkan bahwa mahasiswa X memperoleh rekomendasi untuk karir Front-End Web Developer dan Android Developer dengan skor akhir masing-masing 0.779 dan 0.871, sedangkan karir Machine Learning Engineer tidak direkomendasikan dengan skor 0,762. Sementara itu, mahasiswa Y direkomendasikan untuk karir Database Administrator dengan skor akhir 0.789, sementara Data Scientist dan Data Analyst tidak direkomendasikan dengan skor masing-masing 0.743 dan 0.745. Kata kunci: Sistem Pendukung Keputusan, Rekomendasi Karir, AHP, SAW, Teknik Informatika, Universitas Muhammadiyah Cirebon
Course Scheduling Using Genetic Algorithms Enhanced by Linear Regression for Data Mining Course Participants Arie Susetio Utami; Agust Isa Martinus; Freddy Wicaksono; Rangga Manggala Yudha
JUITA: Jurnal Informatika JUITA Vol. 13 Issue 2, July 2025
Publisher : Department of Informatics Engineering, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/juita.v13i2.25598

Abstract

Course scheduling at the beginning of each semester is an absolute must, considering changes in course instructors, changes in the availability of lecture schedules, changes in lecture infrastructure in terms of number, capacity, and time of use, changes in the number of lecture participants, both new and repeat participants. This research aims to design an optimal scheduling system by considering scheduling constraints to avoid conflicts and increase the effectiveness of lecture scheduling management. The linear regression method is used to predict the number of lecture participants using the 2019-2022 academic year data as model data and the 2023 academic year data as testing data to validate the prediction data. Lecture scheduling uses a Genetic Algorithm with a fitness function for the number of cross-class schedules - contracted by repeating students - that conflict with the chromosomes used by courses, classes, lecturers, rooms, schedules, and others. The designed scheduling system has a prediction model with high accuracy and a coefficient of determination (R-Sq.) above 95% and RMSE below 10. This scheduling system is efficient, minimizing scheduling conflicts to 0 percent
Design and Implementation of Web-Based Helpdesk Information Systems Using Extreme Programming Methods Freddy Wicaksono; Orin Satriani Baswara
ITEJ (Information Technology Engineering Journals) Vol. 5 No. 2 (2020): December
Publisher : Pusat Teknologi Informasi dan Pangkalan Data IAIN Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/itej.v5i2.44

Abstract

Technological developments have become a necessity for job optimization, be it desktop, web or mobile-based software, of course this really supports work with fast, timely completion, without spending a lot of effort and money. The Help Desk is a facilitator for the process of solving operational problems, through communication and interaction networks, internal and external, between the source of the problem (the client) and the potential / problem solving analysis capacity (experts) so that the Asset Management process becomes more effective in improving unit performance. Its operational implementation refers to the principles in the concept of Knowledge Management. Extreme programming is a method that lightens the burden or speeds up the software development process, the characteristics of this method are in accordance with this study which has a small number of team members. This method is flexible so that it can adapt to the changes that customers want. With this the user becomes easier for system development
Course Scheduling Information System Using Genetic Algorithms Freddy Wicaksono; Bayu Permana Putra
ITEJ (Information Technology Engineering Journals) Vol. 6 No. 1 (2021): June
Publisher : Pusat Teknologi Informasi dan Pangkalan Data IAIN Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/itej.v6i1.55

Abstract

University X is a private university which has 8 faculties, namely Economics, Engineering, Social Sciences, Faculty of Social and Political Sciences, Fikes, Law, Islam and Vocational Studies. One of the leading study programs at the University X is the Informatics Engineering Study Program at the Faculty of Engineering which is currently experiencing problems when the process of dividing space and hour schedules is still manual.The problems that arise include the accumulation of lecture hours for a lecturer who takes more than one course. Another problem is the disruption of the lecture process at the beginning of the semester due to the tentative scheduling system. The preparation of lecture schedules at the Faculty of Engineering, University X is still done semi-manually using Microsoft Excel, so it will take several days to make a schedule. Meanwhile, making a schedule must be done quickly and optimally because it is used for lecture activities, the solution that can overcome the above problems is by creating a Course Scheduling Information System Using Genetic Algorithms. The genetic algorithm is one of the most appropriate algorithms used in solving complex optimization problems, which are difficult to do with conventional methods. The nature of genetic algorithms is looking for possibilities from potential solutions to get the optimal for solving problems. The scope of all viable solutions, i.e. the objects between matching solutions, is called the search space. Each point in the search space represents a viable solution. The limitations of the built problem are: This system is operated by the administrative staff of the study program at the Faculty of Engineering, University X. This system is made using the Codeigniter framework, Responsive Bootstrapping (display) and MySQL as the database and the method used by this system is the genetic algorithm method. The final result of this research is that it is helpful and easy to apply as a tool in helping the optimization process of lecture scheduling in order to minimize schedule collisions in lectures at the Faculty of Engineering, University X
TOURISM VILLAGE DEVELOPMENT DURING THE COVID-19 PANDEMIC CASE STUDY IN TEGALWANGI VILLAGE TOURISM VILLAGE DEVELOPMENT DURING THE COVID-19 PANDEMIC CASE STUDY IN TEGALWANGI VILLAGE Muhamammad Hiqbal Pratama; Fitri Dian Perwitasari; Devi Yuliananda; Freddy Wicaksono; Bastoni; Bayu Arisandi
Jurnal Abdisci Vol 1 No 6 (2024): Vol 1 No 6 Tahun 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/abdisci.v1i6.255

Abstract

Students of Universitas Muhammadiyah Cirebon must take part in Student Work Lectures (KKM) as a form of their service to the community. One of the tasks of KKM group 23 in Tegalwangi village is to create a podcast that incorporates the Ngobras (Informal conversation) program about the tourist village. Chatting, talking, or talking casually is the definition of "ngobras". The theme of Ngobras was "A thriving tourist village in the era of industrial revolution 4.0", and the resource person was Mr. H. Nana Mulyana, head of the Cirebon Regency Disbudparpora. The purpose of the KKM "Ngobras" activity is to gather information about what needs to be prepared, considered, and developed by Tegalwangi village as a tourism village.  The research location is Tegalwangi Village, Weru Subdistrict, Cirebon Regency, and descriptive methods are used. The results of this Ngobras KKM activity provide some input for Tegal Wangi Village to develop a tourist village, hoping that there will be follow-up by the village government.
Mitigating Hallucinations in Large Language Models via Retrieval Augmented Generation: A Systematic Review of n8n-Based Implementations I Ketut Widhi Adnyana; Rosalin Theophilia Tayane; Fahmi Fahmi; Freddy Wicaksono; Bagja Nugraha; Enjang Yusup Ali
EDUKASIA Jurnal Pendidikan dan Pembelajaran Vol. 7 No. 1 (2026): Edukasia: Jurnal Pendidikan dan Pembelajaran
Publisher : LP. Ma'arif Janggan Magetan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62775/edukasia.v7i1.2141

Abstract

This study systematically examines hallucination phenomena in Large Language Models (LLMs), focusing on their characteristics, causal factors, and mitigation strategies through Retrieval-Augmented Generation (RAG) and low-code orchestration platforms such as n8n. Using a Systematic Literature Review (SLR) approach based on PRISMA 2020 guidelines, this study analysed 40 peer-reviewed articles published between 2020 and 2025 from major scientific databases. The findings reveal that hallucinations are multidimensional, consisting of factual, semantic, and contextual hallucinations influenced by static training data, probabilistic token prediction, prompt ambiguity, and insufficient validation mechanisms. The review further demonstrates that RAG significantly improves factual accuracy by integrating external retrieval systems with LLM generation processes. Recent innovations such as Hybrid Retrieval and GraphRAG enhance contextual relevance and knowledge representation. A major finding of this study is the identification of “Conflict of Information” between external retrieved data and internal LLM knowledge in automated RAG pipelines. Furthermore, this study proposes a novel conceptual framework and taxonomy for hallucination mitigation in low-code AI environments, integrating retrieval, validation, conflict resolution, and workflow orchestration mechanisms. These findings contribute to the development of more reliable, transparent, and scalable AI systems.  
Digitization Of The Pangeran Cakrabuana Museum: A Website-Based Cultural Asset Management Information System Dian Novianti; Freddy Wicaksono
Jurnal Improsci Vol 3 No 2 (2025): Vol 3 No 2 October 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v3i2.1049

Abstract

Background. This research discusses the digitization of the Prince Cakrabuana Museum through the development of a website-based cultural asset management information system. The background of this research is that the accessibility and efficiency of museum information management remain limited in conventional ways, which affects the dissemination of information and public museum promotion. Aims. This research aims to design and implement a website-based information system that supports the processes of cultural asset inventory, collection documentation, and digital museum information delivery. Methods. The research method used is a qualitative descriptive case study, conducted at the Cirebon Regency Culture and Tourism Office. Data collection techniques are carried out through observation, interviews, and documentation during Field Work Practice (PKL) activities. Result. The results of the study show that the developed system can manage cultural asset data more structurally, increase public access to information, and support the digital promotion of the Prince of Cakrabuana Museum. Conclusion. The conclusion of this study shows that the application of a website-based information system can improve the efficiency of museum asset management and public interest in the preservation of cultural heritage.
Effectiveness of Management Information Systems in Elementary Schools: A Systematic Literature Review Freddy Wicaksono; Ketut Widhi Adnyana; Fahmi; Yudi Wahyudin; Bagja Nugraha; Enjang Yusup Ali
Indonesian Journal of Educational Research and Review Vol. 9 No. 1 (2026): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijerr.v9i1.105291

Abstract

The effectiveness of Management Information Systems (MIS) in elementary schools has become an important issue as educational governance increasingly requires efficient, accurate, transparent, and data-based management. This study aims to systematically examine the effectiveness of MIS implementation in elementary schools and identify its supporting factors, barriers, and implications for educational service quality. A Systematic Literature Review (SLR) method was employed by following the PRISMA stages, including identification, screening, eligibility assessment, and article inclusion. A total of 22 scientific articles published between 2020 and 2025 were analyzed thematically based on implementation focus, effectiveness, supporting factors, barriers, and the impacts of MIS. The findings show that MIS plays a positive role in improving administrative efficiency, data management accuracy, reporting transparency, internal school coordination, and communication between schools and parents. This system also helps schools strengthen decision-making through faster, more organized, and better documented information. The main supporting factors include technological infrastructure, teachers’ and administrative staff’s digital competence, principal leadership, and policy support. Persistent barriers include limited internet access, inadequate hardware, user resistance, and insufficient technical assistance. These findings confirm that MIS is effective in strengthening elementary school governance and educational service quality, although empirical evidence regarding its direct impact on student learning outcomes remains limited and requires further investigation.
Co-Authors Adnyana, I Ketut Widhi Adnyani, Ni Luh Ayu Ali, Enjang Yusup Anggraeni, Ilmiyati Arief Hidayatullah Satya Nugraha Arisandi, Bayu Bagja Nugraha Bagja Nugraha Bastoni Bastoni Baswara, Orin Satriani Bayu Permana Putra Budi Hartono, Mukhamad Devi Yuliananda Dimas Ardiansyah Enjang Yusup Ali Fahmi Fahmi Fahmi Fajar Ghifari Nugroho fazhri arif alvinnes Fhrizz S. De Jesus Fitri Dian Perwitasari Ketut Widhi Adnyana Lena Magdalena, Lena Lukman Hakim Lutfi Mualiman Marsani Asfi Martinus, Agust Isa Meritorious Autonomous Muhamammad Hiqbal Pratama Novianti, Dian Nurul Bahiyah Orin Satriani Baswara Petrus Sokibi Putra, Bayu Permana Putri Robi’atul Adawiyah R.M.Herdian Bhakti Rafi Farizki Rangga Manggala Yudha Ridho Taufiq Rosalin Theophilia Tayane Santoso, Sabar Suwandi Suwandi Triana Ramadani Utami, Arie Susetio Vo Hung Cuong Widhiani, Pahla Wijaya, Samuel Wiwiek Nurkomala Dewi Yudi Wahyudin