scholarly journals DIAGNOSIS PENYAKIT HIPERTENSI MENGGUNAKAN METODE CASE-BASED REASONING

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Amalia Beladinna Arifa ◽  
Gita Fadila Fitriana
Keyword(s):  
Cross Validation ◽  
Case Based Reasoning ◽  
Minkowski Distance ◽  
Fold Cross Validation ◽  
Case Based

Hipertensi adalah kondisi ketika tekanan darah pada pembuluh darah bersih meningkat secara kronik. Jika tidak segera ditangani dapat menyebabkan peningkatan resiko kejadian penyakit lainnya, misalnya kardiovaskuler, serebrovaskuler dan renovaskuler. Diagnosis penyakit hipertensi perlu ditegakkan sedini mungkin guna menurunkan peningkatan resiko kejadian penyakit lainnya. Penelitian ini bertujuan menghasilkan sistem yang mengimplementasikan metode Case-Based Reasoning yang dapat membantu paramedis untuk mendiagnosis penyakit hipertensi. Implementasi sistem dirancang menggunakan bahasa pemrograman PHP serta penyimpanan data kasus menggunakan MySQL. Kasus-kasus penyakit hipertensi yang sudah berhasil ditangani oleh dokter dijadikan sebagai data acuan untuk mendiagnosis kasus hipertensi yang baru. Kasus baru yang berisi faktor resiko, gejala dan riwayat penyakit selanjutnya dicari kemiripannya dengan kasus-kasus lama dengan cara menghitung nilai similaritas menggunakan Minkowski Distance. Pengujian dilakukan pada 172 data menggunakan 10-fold Cross-Validation. Hasil perhitungan dengan menetapkan threshold sebesar 0,90 didapatkan tingkat akurasi sebesar 94,71%. Hasil penelitian menunjukkan implementasi Case-Based Reasoning dapat digunakan untuk melakukan diagnosis penyakit hipertensi

scholarly journals SISTEM REKOMENDASI TOPIK SKRIPSI MENGGUNAKAN METODE CASE BASED REASONING

2018 ◽  
Vol 4 (3) ◽  
Author(s):  
Ni Luh Putu Merawati ◽  
Sri Hartati
Keyword(s):  
Recommendation System ◽  
Cross Validation ◽  
Manhattan Distance ◽  
Base Case ◽  
Case Based Reasoning ◽  
Distance Method ◽  
K 13 ◽  
Fold Cross Validation ◽  
Undergraduate Thesis ◽  
Case Based

[Id]Syarat utama mendapatkan gelar sarjana di perguruan tinggi yaitu dengan membuat suatu karya ilmiah skripsi. Skripsi bertujuan agar mahasiswa dapat menyusun serta menulis karya ilmiah sesuai dengan bidang ilmunya. Skripsi dapat dijadikan acuan atau standar untuk menilai ketercapaian pembelajaran mahasiswa selama masa perkuliahan. Mahasiswa akan mencari topik-topik skripsi yang relevan dengan kompetensi serta mata kuliah yang pernah diambil oleh mahasiswa tersebut. Mahasiswa seringkali mengalami kendala dalam menentukan topik skripsi yang akan diambil karena minimnya informasi topik-topik skripsi mahasiswa terdahulu. Oleh karena itu diperlukan suatu sistem yang mampu memberikan rekomendasi topik skripsi bagi mahasiswa.Metode Case Based Reasoning (CBR) dapat digunakan sebagai sistem rekomendasi topik skripsi bagi mahasiswa S1 Teknik Informatika Bumigora Mataram. CBR mempunyai 4 tahapan yaitu retrieval, reuse, revisi dan retain. Tahapan yang paling penting pada CBR adalah proses retrieval karena pada tahap ini dilakukan pencarian solusi untuk kasus baru dengan menghitung nilai similaritas atau nilai kedekatan antara kasus baru dengan kasus lama. Kasus lama berasal dari data-data topik skripsi mahasiswa sebelumnya. Pada penelitian ini nilai similaritas antar kasus di hitung menggunakan metode manhattan distance. Sedangkan inputan sistem menggunakan nilai mata kuliah wajib dan mata kuliah pilihan yang telah diambil oleh mahasiswa. Sistem CBR, akan menghitung nilai similaritas antara kasus baru dengan seluruh kasus lama yang tersimpan dalam basis kasus menggunakan metode manhattan distance. Kasus lama dengan nilai similaritas tertinggi digunakan sebagai solusi kasus baru. Hasil implementasi sistem menunjukkan bahwa case based reasoning mampu memberikan rekomendasi topik skripsi untuk mahasiswa. Tahap pengujian menggunakan 280 data dengan metode K-fold Cross Validation, dimana nilai K yang digunakan adalah 7, 10 dan 13. Nilai akurasi terbaik diperoleh untuk K=13 dengan nilai 94,34% disusul K=10 sebesar 93, 99% dan K= 7 sebesar 93,95%.[En]The main requirement to get a bachelor's degree in college is by making a undergraduate thesis scientific work. Undergraduate thesis aims to enable students to compile and write scientific works in accordance with their fields of science. Undergraduate thesis can be used as a reference or standard to assess the achievement of student learning during the lecture period. Students will look for thesis topics that are relevant to the competencies and courses taken by the student. Students often experience obstacles in determining thesis topics that will be taken because of the lack of information on previous student thesis topics. Therefore we need a system that is able to provide thesis topic recommendations for students.The Case Based Reasoning (CBR) method can be used as a undergraduate thesis topic recommendation system for students of S1 Informatics Engineering Bumigora Mataram. CBR has 4 stages, namely retrieval, reuse, revise and retain. The most important stage in CBR is the retrieval process because at this stage a search for a solution for a new case is done by calculating the value of similarity or the value of proximity between the new case and the old case. The old case comes from the previous student undergraduate thesis topic data. In this research the value of similarity between cases was calculated using the manhattan distance method. While the input system uses the value of compulsory courses and elective courses taken by students. CBR system, will calculate the similarity value between new cases with all old cases stored in the base case using the manhattan distance method. The old case with the highest similarity value is used as a solution to the new case. Based on the results of implementation shows that case based reasoning can be used as a recommendation system for topic and undergraduate thesis supervisor. Test phase used 280 data with K-fold Cross Validation method, where the value of K used were 7, 10 and 13. The best accuracy value obtained for K = 13 was with the value of 94,34% followed by K = 10 equal to 93, 99% and K =93,95%.

scholarly journals Diagnosis Tahapan Pengguna Narkoba Menggunakan Metode K-Nearest Neighbor

2020 ◽  
Vol 6 (1) ◽  
pp. 101
Author(s):  
Tursina Tursina ◽  
Hafiz Muhardi ◽  
Dian Aulia Sari
Keyword(s):  
Cross Validation ◽  
Nearest Neighbor ◽  
Confusion Matrix ◽  
Case Based Reasoning ◽  
K Nearest Neighbor ◽  
Fold Cross Validation ◽  
Case Based

Narkoba merupakan bahan yang sangat bermanfaat untuk pengobatan, namun jika disalahgunakan akan memberikan dampak buruk yang luar biasa seperti gangguan kesehatan, gangguan kejiwaan hingga kematian. Seorang pengguna narkoba cenderung tertutup dan tidak ingin berkonsultasi langsung ke dokter maupun rehabilitasi dikarenakan pengguna malu dengan kondisinya, biaya yang relatif mahal, jarak dan waktu yang ditempuh, takut dilaporkan dan tanggapan negatif dari masyarakat. Tujuan dilakukannya penelitian ini adalah untuk membantu seorang pengguna narkoba ataupun bagi seseorang yang dicurigai sebagai pengguna narkoba dalam mendiagnosis tahapan pengguna narkoba dan memberikan solusi serta saran terhadap pengguna narkoba tersebut. Case based reasoning merupakan penalaran yang digunakan untuk menyelesaikan kasus baru dengan cara mengadaptasi solusi yang terdapat pada kasus-kasus sebelumnya, yang mempunyai permasalahan yang mirip dengan kasus baru. Pada tahapan retrieve, terjadi proses menghitung similaritas antara kasus baru dan kasus lama. Perhitungan similaritas kasus pada penelitian ini menggunakan metode k-nearest neighbor. Pengujian hasil akhir sistem menggunakan pengujian tahapan CBR dan pengujian kinerja metode k-nearest neighbor. Hasil pengujian mengukur kinerja dari metode k-nearest neighbor dengan nilai k=7, tingkat akurasi untuk 10-fold cross validation sebesar 98,333%, confusion matrix sebesar 100% dan termasuk excellent classification karena memiliki nilai AUC 1,000.

scholarly journals Case-Based Reasoning for Stroke Disease Diagnosis

2018 ◽  
Vol 12 (1) ◽  
pp. 33 ◽  
Author(s):  
Nelson Rumui ◽  
Agus Harjoko ◽  
Aina Musdholifah
Keyword(s):  
Blood Flow ◽  
Cerebrovascular Disease ◽  
Cross Validation ◽  
High Sensitivity ◽  
Disease Diagnosis ◽  
Case Based Reasoning ◽  
Similarity Calculation ◽  
The Brain ◽  
Fold Cross Validation ◽  
Case Based

Stroke is a type of cerebrovascular disease that occurs because blood flow to the brain is disrupted. Examination of stroke accurately using CT scan, but the tool is not always available, so it can be done by the Siriraj Score. Each type of stroke has similar symptoms so doctors should re-examine similar cases prior to diagnosis. The hypothesis of the Case-based reasoning (CBR) method is a similar problems having similar solution.This research implements CBR concept using Siriraj score, dense index and Jaccard Coeficient method to perform similarity calculation between cases.The test is using k-fold cross validation with 4 fold and set values of threshold (0.65), (0.7), (0.75), (0.8), (0.85), (0.9), and (0.95). Using 45 cases of data test  and 135 cases of case base. The test showed that threshold of 0.7 is suitable to be applied in sensitivity (89.88%) and accuracy (84.44% for CBR using indexing and 87.78% for CBR without indexing). Threshold of 0.65 resulted high sensitivity  and accuracy but showed many cases of irrelevant retrieval results. Threshold (0.75), (0.8), (0.85), (0.9) and (0.95) resulted in sensitivity (65.48%, 59.52%, 5.95%, 3,57% and 0%) and accuracy of CBR using indexing (61.67%, 55.56%, 5.56%, 3.33%, and 0%) and accuracy of CBR without indexing (62.78% 56.67%, 55.56%, 5.56%, 3.33%, and 0%).

scholarly journals Development of Ground Special Vehicle PHM with Case-Based Reason Model

2021 ◽  
Vol 11 (10) ◽  
pp. 4494
Author(s):  
Qicai Wu ◽  
Haiwen Yuan ◽  
Haibin Yuan
Keyword(s):  
Cross Validation ◽  
Optimization Methods ◽  
Engineering Practice ◽  
Case Based Reasoning ◽  
Case Retrieval ◽  
Data Set ◽  
Attribute Weights ◽  
Special Vehicle ◽  
Weight Allocation ◽  
Case Based

The case-based reasoning (CBR) method can effectively predict the future health condition of the system based on past and present operating data records, so it can be applied to the prognostic and health management (PHM) framework, which is a type of data-driven problem-solving. The establishment of a CBR model for practical application of the Ground Special Vehicle (GSV) PHM framework is in great demand. Since many CBR algorithms are too complicated in weight optimization methods, and are difficult to establish effective knowledge and reasoning models for engineering practice, an application development using a CBR model that includes case representation, case retrieval, case reuse, and simulated annealing algorithm is introduced in this paper. The purpose is to solve the problem of normal/abnormal determination and the degree of health performance prediction. Based on the proposed CBR model, optimization methods for attribute weights are described. State classification accuracy rate and root mean square error are adopted to setup objective functions. According to the reasoning steps, attribute weights are trained and put into case retrieval; after that, different rules of case reuse are established for these two kinds of problems. To validate the model performance of the application, a cross-validation test is carried on a historical data set. Comparative analysis of even weight allocation CBR (EW-CBR) method, correlation coefficient weight allocation CBR (CW-CBR) method, and SA weight allocation CBR (SA-CBR) method is carried out. Cross-validation results show that the proposed method can reach better results compared with the EW-CBR model and CW-CBR model. The developed PHM framework is applied to practical usage for over three years, and the proposed CBR model is an effective approach toward the best PHM framework solutions in practical applications.

scholarly journals Case-based Reasoning for Skin Diseases Diagnose using Minkowski Distance

2019 ◽  
Author(s):  
. Mihuandayani ◽  
Yufika Sari Bagi ◽  
Theofani Christi Irene Momongan
Keyword(s):  
Skin Diseases ◽  
Case Based Reasoning ◽  
Minkowski Distance ◽  
Case Based

scholarly journals Case Base Reasoning Untuk Mendiagnosis Penyakit Hipertensi Menggunakan Metode Indexing Density Based Spatial Clustering Application With Noise (DBSCAN)

2019 ◽  
Vol 7 (1) ◽  
pp. 88-100
Author(s):  
Herdiesel Santoso
Keyword(s):  
Euclidean Distance ◽  
Spatial Clustering ◽  
Case Based Reasoning ◽  
Minkowski Distance ◽  
Unhealthy Lifestyle ◽  
Distance Method ◽  
Threshold Score ◽  
Case Base Reasoning ◽  
Minimum Points ◽  
Case Based

Abstract. Hypertension is one of the health problems priority in the world because of the increasing of life expectancy and an unhealthy lifestyle. Many people with hypertension are unreachable and undiagnosed by a health worker and they do not do treatment according to the health recommendation. The Case-Based Reasoning (CBR) Method can be applied to solve the new cases in diagnosed hypertension using the answer or experience from the old case by comparing the new case and the old case. In order to do not use all the basic case data for finding a similar case, it makes an indexing process is needed. The DBSCAN algorithm implementation as indexing method is expected to improve the time and memory efficiency in CBR, especially during the retrieval process. The result of the CBR test with the cluster-indexing has a better accuracy and time process than the non-indexing CBR. The minimum parameter points and epsilon that has been chosen for clustering on hypertension data case is the combination of epsilon score 9 and minimum points score 3 with the silhoutte coefficient score 0.240 and average cluster time 0.541 seconds. The Minkowski Distance method has better accuracy than the Euclidean Distance method because by the threshold score ≥ 0.9 the CBR system with the Minkowski distance method is able to diagnose the disease with 100 % accuracy and the average best retrieval time, it is 0.0586 second Abstrak. Hipertensi menjadi salah satu prioritas masalah kesehatan di dunia karena peningkatan angka harapan hidup dan gaya hidup yang tidak sehat. Banyak penderita hipertensi yang tidak terjangkau dan terdiagnosis oleh tenaga kesehatan serta tidak menjalani pengobatan sesuai anjuran kesehatan. Metode Case-Based Reasoning (CBR) dapat diaplikasikan untuk menyelesaikan masalah baru dalam diagnosis penyakit hipertensi menggunakan jawaban atau pengalaman dari masalah lama  dengan membandingkan kasus baru dengan kasus lama. Supaya proses pencarian kasus yang mirip tidak perlu melibatkan seluruh data pada basis kasus,maka diperlukan proses indexing. Implementasi algoritme DBSCAN sebagai metode indexing diharapkan dapat meningkatkan efisiensi waktu dan memori pada CBR khususnya ketika proses retrival. Hasil pengujian CBR dengan cluster-indexing memiliki akurasi dan waktu proses yang lebih baik dari pada CBR non-indexing. Parameter minimum points dan epsilon yang dipilih untuk melakukan clustering pada data kasus penyakit hipertensi adalah kombinasi epsilon 9 dan minimum points 3 dengan nilai silhoutte coeffisien 0.240 dan waktu klaster rata-rata 0.541 detik. Metode minkowski distance memiliki akurasi yang lebih baik dari pada metode euclidean distance, karena dengan threshold ≥ 0.9 sistem CBR dengan metode minkowski distance mampu mendignosis penyakit dengan akurasi 100% dan waktu retrieve rata-rata terbaik yaitu 0.0586 detik.

scholarly journals Case Based Reasoning untuk Diagnosis Penyakit Jantung Menggunakan Metode Minkowski Distance

2018 ◽  
Vol 1 (1) ◽  
pp. 119-123
Author(s):  
Eka Wahyudi ◽  
Novi Indah Pradasari
Keyword(s):  
Heart Disease ◽  
Computer System ◽  
Medical Records ◽  
Disease Diagnosis ◽  
Case Based Reasoning ◽  
Test Results ◽  
Minkowski Distance ◽  
Heart Disease Diagnosis ◽  
System Knowledge ◽  
Case Based

Case Based Reasoning is a computer system that used for reasoning old knowledge to solve new problems. It works by looking at the closest old case to the new case. This research attempts to establish a system of CBR  for diagnosing heart disease. The diagnosis process  is done by inserting new cases containing symptoms into the system, then  the similarity value calculation between cases  uses the minkowski distance similarity. Case taken is the case with the highest similarity value. If a case does not succeed in the diagnosis or threshold less than 0.80, the case will be revised by experts. Revised successful cases are stored to add the system knowledge. Method with the best diagnostic result accuracy will be used in building the CBR system for heart disease diagnosis. The test results using medical records data validated by expert indicate that the system is able to recognize diseases heart using minskowski distance similarity correctly of 100 percent. Using minkowski get accuracy of 100 percent.  Keywords : Case Based Reasoning, Minkowski Distance Similarity.

scholarly journals Local Triangular Kernel-Based Clustering (LTKC) for Case Indexing on Case-Based Reasoning

2018 ◽  
Vol 12 (2) ◽  
pp. 139
Author(s):  
Damar Riyadi ◽  
Aina Musdholifah
Keyword(s):  
Heart Disease ◽  
Thyroid Disease ◽  
Euclidean Distance ◽  
Manhattan Distance ◽  
Case Based Reasoning ◽  
Minkowski Distance ◽  
Retrieval Time ◽  
Accuracy Comparison ◽  
Speed Up ◽  
Case Based

This study aims to improve the performance of Case-Based Reasoning by utilizing cluster analysis which is used as an indexing method to speed up case retrieval in CBR. The clustering method uses Local Triangular Kernel-based Clustering (LTKC). The cosine coefficient method is used for finding the relevant cluster while similarity value is calculated using Manhattan distance, Euclidean distance, and Minkowski distance. Results of those methods will be compared to find which method gives the best result. This study uses three test data: malnutrition disease, heart disease, and thyroid disease. Test results showed that CBR with LTKC-indexing has better accuracy and processing time than CBR without indexing. The best accuracy on threshold 0.9 of malnutrition disease, obtained using the Euclidean distance which produces 100% accuracy and 0.0722 seconds average retrieval time. The best accuracy on threshold 0.9 of heart disease, obtained using the Minkowski distance which produces 95% accuracy and 0.1785 seconds average retrieval time. The best accuracy on threshold 0.9 of thyroid disease, obtained using the Minkowski distance which produces 92.52% accuracy and 0.3045 average retrieval time. The accuracy comparison of CBR with SOM-indexing, DBSCAN-indexing, and LTKC-indexing for malnutrition diseases and heart disease resulted that they have almost equal accuracy.

scholarly journals Case-Based Reasoning untuk Diagnosis Penyakit Jantung

2017 ◽  
Vol 11 (1) ◽  
pp. 1 ◽  
Author(s):  
Eka Wahyudi ◽  
Sri Hartati
Keyword(s):  
Heart Disease ◽  
Euclidean Distance ◽  
Nearest Neighbor ◽  
Disease Diagnosis ◽  
Case Based Reasoning ◽  
Test Results ◽  
Minkowski Distance ◽  
Heart Disease Diagnosis ◽  
Similarity Method ◽  
Case Based

Case Based Reasoning (CBR) is a computer system that used for reasoning old knowledge to solve new problems. It works by looking at the closest old case to the new case. This research attempts to establish a system of CBR  for diagnosing heart disease. The diagnosis process  is done by inserting new cases containing symptoms into the system, then  the similarity value calculation between cases  uses the nearest neighbor method similarity, minkowski distance similarity and euclidean distance similarity.            Case taken is the case with the highest similarity value. If a case does not succeed in the diagnosis or threshold <0.80, the case will be revised by experts. Revised successful cases are stored to add the systemknowledge. Method with the best diagnostic result accuracy will be used in building the CBR system for heart disease diagnosis.            The test results using medical records data validated by expert indicate that the system is able to recognize diseases heart using nearest neighbor similarity method, minskowski distance similarity and euclidean distance similarity correctly respectively of 100%. Using nearest neighbor get accuracy of 86.21%, minkowski 100%, and euclidean 94.83%

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