“…Measure the accuracy of the model using a confusion matrix. A confusion matrix is a tool for analyzing how a classification model identifies a different set of data [21].…”
Data is the most important thing, the use of data can be useful to get an evaluation from the user of a system or application that is built based on mobile. Not only, the assessment or acceptance results of mobile applications during the trial stage are considered important, assessments and comments from direct users are also important things that can be input for mobile application developers. Data mining, or known in English as data mining, is the answer to the process of retrieving data on any media. In this research, data mining is carried out on the media mobile application download service provider Google Playstore, which provides data in the form of comments and ratings. After scraping the data and obtaining the latest data parameters determined by the latest 2000 comments, the data is pre-processed by removing the emot icon character and eliminating unneeded variables so that the data obtained can be processed to the next stage, namely classification based on ratings and sentiment comments. The algorithms used or compared in this research are Support Vector machine, logistic regression and naïve bayes which are known to be reliable in data mining processing. In this research, the accuracy results are 88% for SVM, 90.5% for Logistic Regression and 91% for naïve bayes.
“…Measure the accuracy of the model using a confusion matrix. A confusion matrix is a tool for analyzing how a classification model identifies a different set of data [21].…”
Data is the most important thing, the use of data can be useful to get an evaluation from the user of a system or application that is built based on mobile. Not only, the assessment or acceptance results of mobile applications during the trial stage are considered important, assessments and comments from direct users are also important things that can be input for mobile application developers. Data mining, or known in English as data mining, is the answer to the process of retrieving data on any media. In this research, data mining is carried out on the media mobile application download service provider Google Playstore, which provides data in the form of comments and ratings. After scraping the data and obtaining the latest data parameters determined by the latest 2000 comments, the data is pre-processed by removing the emot icon character and eliminating unneeded variables so that the data obtained can be processed to the next stage, namely classification based on ratings and sentiment comments. The algorithms used or compared in this research are Support Vector machine, logistic regression and naïve bayes which are known to be reliable in data mining processing. In this research, the accuracy results are 88% for SVM, 90.5% for Logistic Regression and 91% for naïve bayes.
“…The study analyzed numerous articles related to EEG signal processing, identified limitations, and analyzed future development trends. Besides biomedical and BdM fields, the role of signal processing in ML has been addressed in various fields such as audio analysis and recognition [14]- [20], seismic signal analysis [20]- [22], and telecommunications [23]- [30].…”
Recent advancements in sensing, measurement, and computing technologies
have significantly expanded the potential for signal-based applications,
leveraging the synergy between signal processing and Machine Learning
(ML) to improve both performance and reliability. This fusion represents
a critical point in the evolution of signal-based systems, highlighting
the need to bridge the existing knowledge gap between these two
interdisciplinary fields. Despite many attempts in the existing
literature to bridge this gap, most are limited to specific applications
and focus mainly on feature extraction, often assuming extensive prior
knowledge in signal processing. This assumption creates a significant
obstacle for a wide range of readers. To address these challenges, this
paper takes an integrated article approach. It begins with a detailed
tutorial on the fundamentals of signal processing, providing the reader
with the necessary background knowledge. Following this, it explores the
key stages of a standard signal processing-based ML pipeline, offering
an in-depth review of feature extraction techniques, their inherent
challenges, and solutions. Differing from existing literature, this work
offers an application-independent review and introduces a novel
classification taxonomy for feature extraction techniques. Furthermore,
it aims at linking theoretical concepts with practical applications, and
demonstrates this through two specific use cases: a spectral-based
method for condition monitoring of rolling bearings and a wavelet energy
analysis for epilepsy detection using EEG signals. In addition to
theoretical contributions, this work promotes a collaborative research
culture by providing a public repository of relevant Python and MATLAB
signal processing codes. This effort is intended to support
collaborative research efforts and ensure the reproducibility of the
results presented.
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