KNN

Unveiling the Ecological Footprint of Lead-Free Piezoelectric Ceramics

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Unveiling the Ecological Footprint of Lead-Free Piezoelectric Ceramics

Research Background Piezoelectric ceramics can achieve the conversion between mechanical energy and electrical energy, making them key materials in important fields such as information communication, biomedical, defense industry, and consumer electronics. Since the discovery of lead zirconate titanate (PZT) in 1955, its excellent piezoelectric properties have led to its rapid application in sensors, actuators, and … Read more

Statistical Learning Methods Using Python

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Python Algorithm Implementation from scipy import stats from pylab import * def knnClassify(Target_feature, dataSet, p, k): dataSet_x = dataSet[:, 0:-1] dataSet_y = dataSet[:, -1] L_p = [] for i in range(len(dataSet_x)): l_p = 0 for x_i in range(len(dataSet_x[i])): l_p = (abs(dataSet_x[i][x_i] – Target_feature[x_i]))**p+l_p l_p =math.pow(l_p, 1/p) L_p.append(l_p) L_p = np.array(L_p) y_i = L_p.argsort() y = … Read more

An Efficient Secure KNN Classification Protocol

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An Efficient Secure KNN Classification Protocol

The new issue of high-level papers is here This issue introduces the paper An efficient secure k nearest neighbor classification protocol with high-dimensional features Published in the INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS The authors are Yang Ruidi and her advisor, Professor Sun Maohua Part 01 Author Introduction Sun MaohuaINTERVIEW Born in 1986 in Shandong, China. … Read more

Prediction Model for Greenhouse Tomato Growth Based on KNN-SVM Algorithm

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Prediction Model for Greenhouse Tomato Growth Based on KNN-SVM Algorithm

Author：Tang You1,2, Zhang Wei1 Affiliation：1. School of Information and Control Engineering, Jilin Chemical Technology College; 2. School of Electrical and Information Engineering, Jilin Agricultural Science and Technology College Abstract：Tang You, male, from Longjiang, Heilongjiang, professor, PhD, engaged in research on bioinformatics and agricultural informatization. Fund Project：Jilin Provincial Science and Technology Development Plan Project (YDZJ202201ZYTS-692). Source：《Anhui … Read more

Research on PM2.5 Concentration Prediction Model Based on Weighted KNN-BP Neural Network

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Research on PM2.5 Concentration Prediction Model Based on Weighted KNN-BP Neural Network

Source: Journal of Environmental Engineering Technology, January 2019 Issue Authors: Zhao Wenyi, Xia Lisha, Gao Guangkuo, Cheng Li Affiliation: School of Management, University of Shanghai for Science and Technology Funding Projects: National Social Science Fund Project; Shanghai University of Science and Technology Humanities and Social Sciences “Climbing Plan” Project; Shanghai Municipal College Student Innovation and … Read more

Time-Frequency Analysis of EEG Signals for Depth of Anesthesia Monitoring

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Time-Frequency Analysis of EEG Signals for Depth of Anesthesia Monitoring

Click the “blue words” to follow for more exciting content! Monitoring the depth of anesthesia (DoA) during surgery is crucial, particularly non-invasive monitoring techniques. This article proposes a new approach for monitoring DoA, which utilizes time-frequency analysis of electroencephalogram (EEG) signals and extracts features from the gray level co-occurrence matrix (GLCM). First, the time-frequency map … Read more

Outlier Detection Using PyOD

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Outlier Detection Using PyOD

Source: DeepHub IMBA This article is approximately 1200 words long and is recommended for a 5-minute read. In this article, we will introduce the PyOD package and provide detailed code examples. Outlier detection is a key task in various fields. PyOD, which stands for Python Outlier Detection, simplifies the process of identifying outliers in multivariate … Read more

Daily Pain Prediction Using Smartphone Speech Recordings

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Daily Pain Prediction Using Smartphone Speech Recordings

Click the “blue words” to follow for more exciting content! Background: In neurosurgical practice, pain assessment is largely subjective, but the emergence of machine learning offers the possibility of objective pain assessment. Objective: To predict daily pain levels using smartphone voice recordings from a group of patients diagnosed with neuropathic spine diseases. Methods: With the … Read more

Introduction to Achievements of the National Key Laboratory of Powder Metallurgy at Central South University – Issue 1

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Introduction to Achievements of the National Key Laboratory of Powder Metallurgy at Central South University - Issue 1

Piezoelectric ceramics are functional ceramic materials capable of converting mechanical energy and electrical energy into each other, widely applied in devices such as piezoelectric sensors, actuators, transducers, and filters. Their application spans numerous fields including aerospace, military, information electronics, industrial machinery, medical, and automotive. The development of new environmentally friendly lead-free piezoelectric ceramics has become … Read more

Structure And Properties Of KNN-Based Lead-Free Piezoceramics

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Structure And Properties Of KNN-Based Lead-Free Piezoceramics

Huan Yu:2016 Tsinghua University Excellent Doctoral Dissertation Second Prize Winner Structure and properties of KNN-based lead-free piezoceramics near polymorphic phase transition boundary Author:Huan Yu Supervisor:Xiaohui Wang Professor Department:Materials Science and Engineering Discipline:Materials Science and Engineering PhD Experience:Being a PhD is1%inspiration and99%sweat. Research Background/Significance/Value Piezoceramics are widely used in actuators, sensors, and transducers. To protect the … Read more