Results 11 to 20 of about 334,287 (161)

Financial Fraud Detection and Prediction in Listed Companies Using SMOTE and Machine Learning Algorithms

Entropy, 2022
This paper proposes a new method that can identify and predict financial fraud among listed companies based on machine learning. We collected 18,060 transactions and 363 indicators of finance, including 362 financial variables and a class variable. Then,
Zhihong Zhao, Tongyuan Bai
doaj   +1 more source

Parameter estimation of support vector machine with radial basis function kernel using grid search with leave-p-out cross validation for classification of motion patterns of subviral particles

Current Directions in Biomedical Engineering, 2021
The classification of subviral particle motion in fluorescence microscopy video sequences is relevant to drug development. This work introduces a method for estimating parameters for support vector machines (SVMs) with radial basis function (RBF) kernels
Schuhmann Ricardo M., Rausch Andreas, Schanze Thomas   +2 more
doaj   +1 more source

Prediction model and demonstration of regional agricultural carbon emissions based on PCA-GS-KNN: a case study of Zhejiang province, China

Environmental Research Communications, 2023
The paper proposes a prediction algorithm that is composed with principal component analysis (PCA), grid search (GS) and K-nearest neighbours (KNN). Firstly, in order to solve the problem of multicollinearity in multiple regression, principal component ...
Yanwei Qi, Huailiang Liu, Jianbo Zhao, Xinghua Xia   +3 more
doaj   +1 more source

Komparasi Teknik Hyperparameter Optimization pada SVM untuk Permasalahan Klasifikasi dengan Menggunakan Grid Search dan Random Search

Journal of Applied Informatics and Computing, 2023
Classification is one of the important tasks in the field of Machine Learning. Classification can be viewed as an Optimization Problem (Optimization Problem) with the aim of finding the best model that can represent the relationship/pattern between data ...
Muhamad Fajri, Aji Primajaya
doaj   +1 more source

Perbandingan Kinerja Algoritma Optimasi pada Metode Random Forest untuk Deteksi Kegagalan Jantung

Jurnal Rekayasa Elektrika, 2022
Abstrak— Jantung merupakan salah satu organ terpenting dalam tubuh manusia. Kegagalan jantung pada pasien dapat mengakibatkan dampak yang vital dan berujung pada kematian.
Unang Sunarya, Tita Haryanti
doaj   +1 more source

Prediction Model for Transient NOx Emission of Diesel Engine Based on CNN-LSTM Network

Energies, 2023
In order to address the challenge of accurately predicting nitrogen oxide (NOx) emission from diesel engines in transient operation using traditional neural network models, this study proposes a NOx emission forecasting model based on a hybrid neural ...
Qianqiao Shen, Guiyong Wang, Yuhua Wang, Boshun Zeng, Xuan Yu, Shuchao He   +5 more
doaj   +1 more source

Multichannel Capacitive Imaging of Gas Vortex in Swirling Two-Phase Flows Using Parametric Reconstruction

IEEE Access, 2020
Swirl-based inline phase separation is a promising approach in the process industry with potential application in oil and gas separation in petroleum industry. To increase the efficiency of the separation, the process may be controlled. In this direction,
Muhammad Awais Sattar, Aluisio Do Nascimento Wrasse, Rigoberto E. M. Morales, Daniel Rodrigues Pipa, Robert Banasiak, Marco J. Da Silva, Laurent Babout   +6 more
doaj   +1 more source

Distributed Searching of Partial Grids

CoRR, 2016
We consider the following distributed pursuit-evasion problem. A team of mobile agents called searchers starts at an arbitrary node of an unknown $n$-node network. Their goal is to execute a search strategy that guarantees capturing a fast and invisible intruder regardless of its movements using as few agents as possible.
Dariusz Dereniowski, Dorota Urbanska
openaire   +2 more sources

Early Diagnosis of COVID-19 Images Using Optimal CNN Hyperparameters

Diagnostics, 2022
Coronavirus disease (COVID-19) is a worldwide epidemic that poses substantial health hazards. However, COVID-19 diagnostic test sensitivity is still restricted due to abnormalities in specimen processing.
Mohamed H. Saad, Sherief Hashima, Wessam Sayed, Ehab H. El-Shazly, Ahmed H. Madian, Mostafa M. Fouda   +5 more
doaj   +1 more source

A Multi-Class Deep Learning Approach for Early Detection of Depressive and Anxiety Disorders Using Twitter Data

Algorithms, 2023
Social media occupies an important place in people’s daily lives where users share various contents and topics such as thoughts, experiences, events and feelings. The massive use of social media has led to the generation of huge volumes of data.
Lamia Bendebane, Zakaria Laboudi, Asma Saighi, Hassan Al-Tarawneh, Adel Ouannas, Giuseppe Grassi   +5 more
doaj   +1 more source