scholarly journals Expert System Diagnoses Damage to Injection Motorcycles with the Certainty Factor Method

Author(s):  
Feryanto Ginting ◽  
Penda Sudarto Hasugian

Motorcycles are the main means of transportation that is widely used to support the activities of their societies. Prior to the development of technology, motorcycles still use carburetors. But motorcycles are still using carburetor system is still quite wasteful. With the development of technology, there is now applying the Yamaha brand motorcycles capable of supplying petrol injection engine needs. Motorcycles injection technology is much more efficient compared to motorcycle carburetor technology, in addition to economical motorcycle of this type has a performance engine and a reliable power. But frequent obstacles that cause damage to the injection Yamaha motorcycle, disrupting users.An expert system is a system that adopts the expertise of an expert an expert in a particular field into the system or a computer program is presented with a display that can be used by a user who is not an expert so that system users can make a decision or set policy like an expert in finishing problem. Certainty factor method used to obtain the value of the certainty of damage from an expert motorcycle injection, so that the user also gets the value of the damage certainty selected symptoms of the experience of experts. The results of diagnostics in expert system that has been made that if the user mencheklis symptoms such as clogged when rotated gas engine, electric distater difficult / lift, lights up when the engine is difficult to use the kick starter, often emit exhaust sound of an explosion, it can be concluded from the analysis that the damage found on the spark plug with a value of MB = 0.99, MD = 0:22 and Certainty Factor value of 76.66%. The diagnosis ever made by a visitor or mechanical accessible again by entering an email to the database.

2016 ◽  
Vol 7 (2) ◽  
pp. 59-69
Author(s):  
Stephanie Halim ◽  
Seng Hansun

Osteoporosis    is    commonly    referred    to “thinning” and osteoarthritis referred to “calcification”, but people giving wrong action treatment of these two diseases. Therefore, the aim of this study is to develop an android-based application to identify the risk of osteoporosis and osteoarthritis. To identify that risk was processed using certainty factor method. Certainty factor method related about event based on facts, which the source of those facts are from expert and assumed with a value, called certainty factor. From the testing result, the accuracy of this expert system is about 80%. Index Terms - Certainty factor, disease diagnose, expert system, osteoarthritis, osteoporosis


2020 ◽  
Vol 1 (2) ◽  
pp. 107
Author(s):  
Lola Fida Putri

Measles Roseola usually attacks infants with transmission from a sprinkling of sufferers' saliva. Roseola must be treated quickly because it can cause liver and brain inflammation. Roseola's disease for people whose economy is low is not given much attention because it is often diagnosed in severe or acute illness. This is because the red rash in infants is a common measles. Early diagnosis of Roseola's disease is a good way to avoid adverse consequences for the baby's health. The Roseola disease expert system is able to help low-income people to self-diagnose the disease. Roseola's disease expert system is applied knowledge gained from experts, namely specialist dermatologists in children. Processing of symptoms based on facts with the value and calculation of the Certainty Factor method. Certainty Factor determines good results by combining expert values and user values.


Repositor ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 47
Author(s):  
Nina Mauliana Noor Fajriah ◽  
Yufis Azhar ◽  
Gita Indah Marthasari

Expert system is one of the AI Development fields. AI (Artificial Intelligence) is part of a computer science which used the computer to imitate the human thoughts and behavior. The usage of a method in Expert System is very important. Thus, the most compatible method to use is the Certainty Factor method. This method is suitable to be used on Expert System to measure things and diagnosed it, will it be very sure or unsure. For example, Expert System to diagnose disease on strawberry plants. This software allows the user to diagnose the disease on strawberry plants before taking a further action. This software is using PHP programming language and store the data using MySQL system database. When the user consulting to the software, the software will show the symptoms of the disease and the user can choose the level of certainty from the chosen disease symptom. The final result from the software is a form which includes the guide of how to take the measurement of the disease based on the chosen symptoms.


Author(s):  
Syahrizal Dwi Putra ◽  
M Bahrul Ulum ◽  
Diah Aryani

An expert system which is part of artificial intelligence is a computer system that is able to imitate the reasoning of an expert with certain expertise. An expert system in the form of software can replace the role of an expert (human) in the decision-making process based on the symptoms given to a certain level of certainty. This study raises the problem that many women experience, namely not understanding that they have uterine myomas. Many women do not understand and are not aware that there are already symptoms that are felt and these symptoms are symptoms of the presence of uterine myomas in their bodies. Therefore, it is necessary for women to be able to diagnose independently so that they can take treatment as quickly as possible. In this study, the expert will first provide the expert CF values. Then the user / respondent gives an assessment of his condition with the CF User values. In the end, the values obtained from these two factors will be processed using the certainty factor formula. Users must provide answers to all questions given by the system in accordance with their current conditions. After all the conditions asked are answered, the system will display the results to identify that the user is suffering from uterine myoma disease or not. The Expert System with the certainty factor method was tested with a patient who entered the symptoms experienced and got the percentage of confidence in uterine myomas/fibroids of 98.70%. These results indicate that an expert system with the certainty factor method can be used to assist in diagnosing uterine myomas as early as possible.


Author(s):  
Nandra Sunaryo ◽  
Yuhandri Yunus ◽  
S Sumijan

Identification of the development of special interests and talents needs to be done in order to find out the potential of students. This knowledge is needed by the teacher when providing counseling guidance to students in order to know the types of special interests and talents of students. This study aims to identify the development of special interests and talents in students based on the characteristics of special interests and talents appropriately. In this study using the Certainty Factor method where this expert system can assist experts in identifying the development of special interests and talents based on the characteristics of special interests and talents in students. Followed by calculating the level of accuracy with the results of the counseling guidance teacher analysis. The results of the testing of the Certainty Factor method were successfully applied by comparing the data with the system that had been designed so that a good level of accuracy was obtained from the results of the system calculations with expert decisions of 80% of the 5 test data. This expert system application can be used as an alternative in identifying the development of special interests and talents in students.


Author(s):  
Djouking Kiray ◽  
Fricles Ariwisanto Sianturi

An expert system is a knowledge base system that solves problems using an expert's knowledge that is entered into a computer, thereby increasing productivity, Because an expert can work faster than a human lay works like an expert. Expert systems Also solve problems by imitating the ways in the which an expert expert offer section with problems in his field, one of the which is in the field of computer repair, the problem of computer damage Becomes a fairly complicated problem, this problem is Generally experienced by individuals and institutions. One of them is in school institutions that have computer laboratories. to diagnose computer use can damage the certainty factor method that helps identify damage to the computer and find the cause of damage to the computer based on the symptoms that occur and the solution to repair it. Certainty Factor is one of the techniques used to deal with uncertainty in decision making. In dealing with a problem, answers are Often found that do not have full certainty. This uncertainty is influenced by two factors items, namely the uncertain rules and user uncertain answers. Uncertain rules are rules of symptoms that are determined for a damage.


Author(s):  
Firahmi Rizky , Et. al.

Gastrointestinal worm infection affects the Sumatran tiger. Due to the lack of tools to diagnose the disease, the Sumatran tigers are very often located in Medan Zoo, North Sumatra, and their handling is very rare.Based on the above problems, we need an application in the form of an expert system by applying the Certainty Factor method which is expected to help in diagnosing Gastrointestinal worm infection in Sumatran tigers. With the existing symptoms, the CF value can be determined to get a diagnosis of Gastrointestinal worm infection. So that it can make it easier for a doctor to treat and diagnose gastrointestinal worm infections in Sumatran tigers.The conclusion obtained from the system, is able to diagnose quickly, precisely and accurately the symptoms of gastrointestinal worm infections and is expected to help the community in diagnosing gastrointestinal worms experienced by Sumatran tigers so that treatment can be carried out immediately. This is an open access article under the CC BY-SA license


2019 ◽  
Vol 10 (2) ◽  
pp. 120-130
Author(s):  
Wita Yulianti Yulianti ◽  
Liza Trisnawati ◽  
Theresia Manullang

Masa remaja merupakan suatu rentang kehidupan individu. Dalam siklus perkembangan individu, masa remaja merupakan kehidupan yang sangat penting dan masa peralihan yang perlu diarahkan pada perkembangan menuju dewasa. Lingkungan keluarga yang sehat dan lingkungan yang kondisif untuk tumbuh kembang remaja yang positif dapat mempengaruhi kematangan fisik dan psikis remaja, maka dari itu perlu tindakan yang dapat membantu remaja menemukan tujuan dalam kehidupan. Ilmu psikologi merupakan bidang ilmu yang dapat mengetahui perilaku manusia dan mempelajari proses mental manusia. Ilmu psikologi dalam mempelajari sisi psikologi suatu objek masih menggunakan metode konvensional. Dalam hal mengamati gaya belajar remaja, perpaduan antara ilmu psikologi dan teknologi memungkinkan untuk dilakukan, yaitu dengan membuat sebuah sistem berbasis teknologi (sistem pakar) berdasarkan pengetahuan pakar. Sistem pakar ini dapat memberi pengetahuan dalam penentuan gaya belajar remja dengan menerapkan metode dari sistem pakar yaitu certainty factor. Certainty factor dapat memberikan nilai kepercayaan dari nilai ketipastian dengan menghitung nilai certainty factor dan hasil nilai kombinasi certainty factor sesuai ketentuan dari metode. Hasil perhitungan certainty factor berbentuk nilai (angka) di setiap gaya belajar, di mana hasil tertinggi menjadi penetuan gaya belajar. Hasil dari penelitian ini, para pakar (psikolog) dapat menentukan gaya belajar dengan lebih cepat dan pendidik atau pengajar dapat terbantu dalam mengetahui modalitas atau gaya belajar remaja serta dapat memberikan solusi bagi remaja arah bakat atau karir sesuai gaya belajar diperoleh. Bagi akademisi atau praktisi dibidang teknologi, akan didapat hasil bahwa metode Certainty Factor yang dapat menentukan gaya belajar dengan melihat dari perolehan nilai dari setiap gaya belajar.   Kata kunci: Ilmu Psikologi, Remaja, Gaya Belajar, Sistem Pakar, Certainty Factor   Abstrack Adolescence is an individual's life span. In the individual development cycle, adolescence is a very important life and a transitional period that needs to be directed at development towards adulthood. A healthy family environment and an environment that is conducive to adolescent growth and development that can positively affect adolescent physical and psychological maturity, therefore need actions that can help teens find goals in life. Psychology is a field of science that can know human behavior and study human mental processes. Psychology in studying the psychology of an object still uses conventional methods. In terms of observing adolescent learning styles, a combination of psychology and technology makes it possible to do, namely by making a technology-based system (expert system) based on expert knowledge. This study will discuss how to create an expert system with the certainty factor method. From the results of this study, experts in this case psychologists and educators or instructors can be helped in seeing the modalities or learning styles of adolescents. While for academics or practitioners in the field of technology, results will be obtained that the Certainty Factor method can determine learning styles. Keywords: Psychology, adolescence, Learning Style, Expert Systems, Certainty Factor


2021 ◽  
Vol 21 (1) ◽  
pp. 65-73
Author(s):  
Asep Afandi ◽  
Dwi Marisa Efendi

Chicken farming is one of the promising business potentials, but in management and care, it is very important to determine the success of chicken farming. Often in the care of negligent employees so that they are exposed to disease outbreaks. With various types of diseases that attack the symptoms are very similar and even the same as other diseases, therefore an expert system can be used to diagnose a disease by looking at the characteristics of the disease suffered, and how the solution is to treat or prevent the disease In the study, it discusses 8 types of broiler diseases, where the expert system method used is the Fuzzy Max method, Forward Chaining, and Certainty Factor. From the results of the Fuzzy Max method, the results showed an accuracy of 80% - 90% for all types of diseases, while the Certainty Factor method showed 96% - 99% for all types of diseases.Keywords— Expert System, Fuzzy Max, Certainty Factor,  Forward Chaining.


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