Implementasi Sistem Pakar Diagnosa Penyakit Tifus dengan Metode Certainty Factor

Authors

  • Bintang Wicaksana STMIK KAPUTAMA
  • Novriyenni Novriyenni STMIK KAPUTAMA
  • Suci Ramadani STMIK KAPUTAMA

DOI:

https://doi.org/10.61132/neptunus.v3i3.1048

Keywords:

Certainty Factor, Early Diagnosis, Expert System, Public Health, Typhus

Abstract

Typhoid fever is a significant health issue caused by the Salmonella Typhi bacteria, leading to symptoms such as fever, abdominal pain, diarrhea, muscle pain, and serious complications if not treated promptly. A common challenge faced by society is limited access to medical professionals, especially in remote areas, and delays in recognizing symptoms. To address this problem, this study designs and implements a web-based expert system using the Certainty Factor (CF) method, which helps diagnose typhoid fever quickly and accurately. The Certainty Factor method is used to calculate the certainty level of the symptoms experienced by the patient, providing a diagnosis result in the form of early-stage typhoid, mild typhoid, or severe typhoid. The system was developed using PHP programming language and MySQL database, and tested at RSUD Djoelham Binjai City. The research data was obtained from patients at RSUD Djoelham Binjai with a case study on patient number 22. The processing of symptoms through Certainty Factor calculation showed that the patient is most likely to have severe typhoid with a certainty value of 0.9443 or 94.43%. This result proves that the Certainty Factor method can be used to assist in providing an accurate early diagnosis of typhoid fever with a high degree of accuracy.

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Published

2025-09-03

How to Cite

Bintang Wicaksana, Novriyenni Novriyenni, & Suci Ramadani. (2025). Implementasi Sistem Pakar Diagnosa Penyakit Tifus dengan Metode Certainty Factor. Neptunus: Jurnal Ilmu Komputer Dan Teknologi Informasi, 3(3), 331–340. https://doi.org/10.61132/neptunus.v3i3.1048

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