Results 1 to 10 of about 170,941 (111)

Evaluation of Class Distribution and Class Combinations on Semantic Segmentation of 3D Point Clouds With PointNet

open access: yesIEEE Access, 2023
Point clouds are generated by light imaging, detection and ranging (LIDAR) scanners or depth imaging cameras, which capture the geometry from the scanned objects with high accuracy. Unfortunately, these systems are unable to identify the semantics of the
Eike Barnefske, Harald Sternberg
doaj   +1 more source

Hyperparameter Optimization of Ensemble Models for Spam Email Detection

open access: yesApplied Sciences, 2023
Unsolicited emails, popularly referred to as spam, have remained one of the biggest threats to cybersecurity globally. More than half of the emails sent in 2021 were spam, resulting in huge financial losses.
Temidayo Oluwatosin Omotehinwa   +1 more
doaj   +1 more source

Tree-Structured Parzan Estimator–Machine Learning–Ordinary Kriging: An Integration Method for Soil Ammonia Spatial Prediction in the Typical Cropland of Chinese Yellow River Delta with Sentinel-2 Remote Sensing Image and Air Quality Data

open access: yesRemote Sensing, 2023
Spatial prediction of soil ammonia (NH3) plays an important role in monitoring climate warming and soil ecological health. However, traditional machine learning (ML) models do not consider optimal parameter selection and spatial autocorrelation. Here, we
Yingqiang Song   +9 more
doaj   +1 more source

Application of SVM and Chi-Square Feature Selection for Sentiment Analysis of Indonesia’s National Health Insurance Mobile Application

open access: yesMathematics, 2023
(1) Background: sentiment analysis is a computational technique employed to discern individuals opinions, attitudes, emotions, and intentions concerning a subject by analyzing reviews.
Ewen Hokijuliandy   +2 more
doaj   +1 more source

CABLE NEWS NETWORK (CNN) ARTICLES CLASSIFICATION USING RANDOM FOREST ALGORITHM WITH HYPERPARAMETER OPTIMIZATION

open access: yesBarekeng, 2023
The growth of news articles on the internet occurs in a short period with large amounts so necessary to be grouped into several categories for easy access. There is a method for grouping news articles, namely classification.
Dewi Retno Sari Saputro, Krisna Sidiq
doaj   +1 more source

Prediction of Vestibular Dysfunction by Applying Machine Learning Algorithms to Postural Instability

open access: yesFrontiers in Neurology, 2020
Objective: To evaluate various machine learning algorithms in predicting peripheral vestibular dysfunction using the dataset of the center of pressure (COP) sway during foam posturography measured from patients with dizziness.Study Design: Retrospective ...
Teru Kamogashira   +5 more
doaj   +1 more source

A hierarchical optimisation framework for pigmented lesion diagnosis

open access: yesCAAI Transactions on Intelligence Technology, 2022
The study of training hyperparameters optimisation problems remains underexplored in skin lesion research. This is the first report of using hierarchical optimisation to improve computational effort in a four‐dimensional search space for the problem. The
Audrey Huong   +3 more
doaj   +1 more source

Transformer-Based Semantic Segmentation for Extraction of Building Footprints from Very-High-Resolution Images

open access: yesSensors, 2023
Semantic segmentation with deep learning networks has become an important approach to the extraction of objects from very high-resolution remote sensing images.
Jia Song, A-Xing Zhu, Yunqiang Zhu
doaj   +1 more source

A Joint-Parameter Estimation and Bayesian Reconstruction Approach to Low-Dose CT

open access: yesSensors, 2023
Most penalized maximum likelihood methods for tomographic image reconstruction based on Bayes’ law include a freely adjustable hyperparameter to balance the data fidelity term and the prior/penalty term for a specific noise–resolution tradeoff.
Yongfeng Gao   +7 more
doaj   +1 more source

Hyperparameter-Optimization-Inspired Long Short-Term Memory Network for Air Quality Grade Prediction

open access: yesInformation, 2023
In the world, with the continuous development of modern society and the acceleration of urbanization, the problem of air pollution is becoming increasingly salient. Methods for predicting the air quality grade and determining the necessary governance are
Dushi Wen   +5 more
doaj   +1 more source

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