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All Journal JAIS (Journal of Applied Intelligent System) Journal of Information System
Heru Lestiawan
Universitas Dian Nuswantoro
Computer Science & IT

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Pattern Recognition on Vehicle Number Plates Using a Fast Match Algorithm Cahaya Jatmoko; Daurat Sinaga; Edi Sugiarto; Nur Rokhman; Heru Lestiawan
Journal of Applied Intelligent System Vol 6, No 2 (2021): Journal of Applied Intelligent System
Publisher : Universitas Dian Nuswantoro and IndoCEISS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/jais.v6i2.4625

Abstract

Computer Vision was the fast developing apps in the world, it is make people make a lot of new algorithm. Before we can use in out app, we need to test the algorithm to make sure how effective and optimal the algorithm to solve every case we given. A lot of traffic system has implemented computer vision, they need fast and can work in every condition, because every vehicle who pass needs to be recognized. In this research Fast Match algorithm was chosen because they can solve some test and make a lot of image have a similarity with the template. It makes accuracy of the data can be achieved with this algorithm. For example on of the sample was have a SAD point for 0.5 and Overlap Error for 0.5 and can run in standard computer just for a couple second. It makes the template and the original image has a little similarity.
Analisa Prakiraan Cuaca dengan Parameter Suhu, Kelembaban, Tekanan Udara, dan Kecepatan Angin Menggunakan Regresi Linear Berganda Ardytha Luthfiarta; Aris Febriyanto; Heru Lestiawan; Wibowo Wicaksono
JOINS (Journal of Information System) Vol 5, No 1 (2020): Edisi Mei 2020
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1680.015 KB) | DOI: 10.33633/joins.v5i1.2760

Abstract

Kondisi cuaca memiliki kecenderungan berubah, untuk itu badan meteorologi bekerja memprediksi perkiraan cuaca agar dapat memberikan peringatan dini apabila terjadi perubahan cuaca yang mendadak atau bahkan ekstrem. Dengan memprakirakan cuaca yang datang mendadak secara akurat, maka dapat mengambil langkah pencegahan agar dapat meminimalkan kerugian yang akan terjadi. Diperlukan beberapa variable atau parameter yang relevan untuk dapat memodelkan data dengan baik sehingga hasil prediksinya menjadi lebih akurat. Salah satu pendekatan pemodelan data untuk prediksi cuaca adalah supervised learning dengan teknik estimasi. Estimasi memberikan prediksi nilai pada atribut target atau class attribute yang bertipe numerical. Regresi linear berganda merupakan salah satu algoritma estimasi yang handal untuk memprediksi cuaca. Empat variable independent yakni, suhu, kelembaban, tekanan, dan kecepatan angin digunakan untuk memprakirakan curah hujan sebagai variable dependent. Data yang digunakan adalah data BMKG dari Stasiun Meteorologi Ahmad Yani Semarang tahun 2015-2017. Nilai koefisien determinasi R2 sebesar 25.5 persen menunjukkan bahwa keempat variabel yang digunakan secara bersamaan dapat menjelaskan nilai curah hujan sebagai variable dependent.
Learning Vector Quantization for Robusta and Arabica Coffee Classification Cahaya Jatmoko; Daurat Sinaga; Heru Lestiawan; Heru Pramono Hadi
Journal of Applied Intelligent System Vol 8, No 2 (2023): Journal of Applied Intelligent System
Publisher : Universitas Dian Nuswantoro and IndoCEISS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/jais.v8i2.7343

Abstract

ANN or artificial neural network is a way to solve various kinds of problems to make decisions based on training. One of the methods of JSt which contains competitive and supervised learning. Where this layer will automatically learn the classification of the closest input distances and will be distributed to the same class. there are 2 types of coffee beans that are famous in the world, namely arabica and robusta, for some people or the layman it will be very difficult to distinguish these 2 types of coffee beans apart from the fact that the shape is almost the same the color looks almost the same but there are a number of differences in the two coffee beans which we can see from the shape of the seed. Robusta has a shape that tends to be round and smaller in size, and has a rougher texture. Arabica, on the other hand, is slightly flatter and longer in shape. The size is slightly bigger than Robusta but the texture of Arabica is smoother than Robusta. This is the basis of this study where the images of the two coffee beans will be extracted using the first-order texture feature extraction method based on MU parameters, standard deviation, skewness, energy, entropy, and smoothness. The method for collecting data was in the form of a quantitative method using images from each coffee bean, both Arabica and Robusta, with a total of 130 images. The comparison between training_data and test_data is 80:20. Through research conducted in the form of performance parameters with the best accuracy, including: Learning rate 0.01, max epoch or maximum iteration of 10 and 30%, the amount of training data used is 39 training images and 26 test images resulting in an accuracy presentation of 71% for the training process and error with a percentage of 96% for the test process.
Co-Authors Ardytha Luthfiarta Aris Febriyanto Cahaya Jatmoko Edi Sugiarto Hadi, Heru Pramono Nur Rokhman Sinaga, Daurat Wibowo Wicaksono