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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Jurnal Edukasi dan Penelitian Informatika (JEPIN) JITK (Jurnal Ilmu Pengetahuan dan Komputer)
Annisa Annisa
IPB University
Computer Science & IT Education Engineering

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Spatial decision tree model for garlic land suitability evaluation Andi Nurkholis; Imas Sukaesih Sitanggang; Annisa Annisa; Sobir Sobir
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 10, No 3: September 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v10.i3.pp666-675

Abstract

Predicting land and weather characteristics as indicators of land suitability is very important in increasing effectiveness in food production. This study aims to evaluate the suitability of garlic land using spatial decision tree algorithm. The algorithm is the improvement of the conventional decision tree algorithm in which spatial join relation is included to grow up spatial decision tree. The spatial dataset consists of a target layer that represents garlic land suitability and ten explanatory layers that represent land and weather characteristics in the study areas of Magetan and Solok district, Indonesia. This study generated the best spatial decision trees for each study area. On Magetan dataset, the best model has 33 rules with 94.34% accuracy and relief variable as the root node, whereas on Solok dataset, the best model has 66 rules with 60.29% accuracy and soil texture variable as the root node.
SKYLINE QUERY BASED ON USER PREFERENCES IN CELLULAR ENVIRONMENTS Ruhul Amin; Taufik Djatna; Annisa Annisa; Imas Sukaesih Sitanggang
JITK (Jurnal Ilmu Pengetahuan dan Teknologi Komputer) Vol 9 No 1 (2023): JITK Issue August 2023
Publisher : LPPM Nusa Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/jitk.v9i1.4192

Abstract

The recommendation system is an important tool for providing personalized suggestions to users about products or services. However, previous research on individual recommendation systems using skyline queries has not considered the dynamic personal preferences of users. Therefore, this study aims to develop an individual recommendation model based on the current individual preferences and user location in a mobile environment. We propose an RFM (Recency, Frequency, Monetary) score-based algorithm to predict the current individual preferences of users. This research utilizes the skyline query method to recommend local cuisine that aligns with the individual preferences of users. The attributes used in selecting suitable local cuisine include individual preferences, price, and distance between the user and the local cuisine seller. The proposed algorithm has been implemented in the JALITA mobile-based Indonesian local cuisine recommendation system. The results effectively recommend local cuisine that matches the dynamic individual preferences and location of users. Based on the implementation results, individual recommendations are provided to mobile users anytime and anywhere they are located. In this study, three skyline objects are generated: soto betawi (C5), Mie Aceh Daging Goreng (C4), and Gado-gado betawi (C3), which are recommended local cuisine based on the current individual preferences (U1) and user location (L1). The implementation results are exemplified for one user located at (U1L1), providing recommendations for soto betawi (C5) with an individual preference score of 0.96, Mie Aceh Daging Goreng (C4) with an individual preference score of 0.93, and Gado-gado betawi (C3) with an individual preference score of 0.98. Thus, this research contributes to the field of individual recommendation systems by considering the dynamic user location and preferences.
Perbandingan Kinerja LSTM dan Prophet untuk Prediksi Deret Waktu (Studi Kasus Produksi Susu Sapi Harian) Alusyanti Primawati; Imas Sukaesih Sitanggang; Annisa Annisa; Dewi Apri Astuti
JEPIN (Jurnal Edukasi dan Penelitian Informatika) Vol 9, No 3 (2023): Volume 9 No 3
Publisher : Program Studi Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jp.v9i3.72031

Abstract

Prediksi deret waktu dibutuhkan untuk menjawab pertanyaan bisnis dimasa depan  yang akurat sehingga perlunya membangun model prediksi yang memiliki kinerja bagus. Pendekatan machine learning seperti long short term memory (LSTM) dan Prophet menjadi popular saat ini untuk pemodelan prediksi deret waktu. Agribisnis susu segar saat ini salah satu studi kasus yang memerlukan peranan teknologi informasi seperti bisnis intelijen untuk memastikan ketersediaan pasokan susu dimasa depan. Upaya pertama yang perlu dilakukan adalah menyiapkan model prediksi yang tepat meskipun data awal yang dikumpulkan masih sedikit atau terbatas. Dataset produksi susu sapi selama 300 hari menjadi data penelitian yang dimodelkan kedalam LSTM dan Prophet. Keduanya dibandingkan kinerjanya terhadapa data terbatas. Hasilnya uji koefisien determinasi R2 keduanya yaitu 0.2, sehingga perlu dilakukan peningkatan kinerja melalui tahapan revise and enhance. Hasilnya, kedua model meningkat nilai R2 menjadi 0.3 dan LSTM lebih baik dari Prophet. Meskipun demikian perbedaan keduanya tidak terlalu signifikan dan peningkatan juga tidak berbeda terlalu jauh karena data susu memiliki pola multi-periode dengan tren berbeda signifikan. Periode 90 hari pertama adalah masa klimaks laktasi sedangkan periode kedua setelah 90 hari adalah masa intervensi peternak menurunkan hasil perah untuk persiapakan ternak kambing perah ke masa kawin dan bunting.
Co-Authors Alusyanti Primawati Andi Nurkholis DEWI APRI ASTUTI Hermawan Prasetya dan Taufik Djatna Ruhul Amin Sitanggang, Imas S. Sobir Sobir