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Journal articles on the topic 'Classification de faces en contact'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Li, Xiaohui, Pan Fu, Kan Chen, Zhibin Lin, and Erqing Zhang. "The Contact State Monitoring for Seal End Faces Based on Acoustic Emission Detection." Shock and Vibration 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/8726781.

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Monitoring the contact state of seal end faces would help the early warning of the seal failure. In the acoustic emission (AE) detection for mechanical seal, the main difficulty is to reduce the background noise and to classify the dispersed features. To solve these problems and achieve higher detection rates, a new approach based on genetic particle filter with autoregression (AR-GPF) and hypersphere support vector machine (HSSVM) is presented. First, AR model is used to build the dynamic state space (DSS) of the AE signal, and GPF is used for signal filtering. Then, multiple features are ext

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2

Das, Shantanu Kumar. "Automatic extraction of mechanical interlocking features from CAD model." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 14, no. 01 (2022): 1–9. http://dx.doi.org/10.18090/samriddhi.v14i01.1.

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This paper represents, classifies, and automatic extracts the mechanical interlocking features (MIFs) from the CAD model. Mechanical interlocking features (MIFs) are geometric features of two or more components when physically interlock that prevent the relative movement in any or certain directions. A set of contact faces in proximity and their characteristic arrangement are used to represent the MIFs. This characteristics arrangement of contact faces and their topological relationships help in classification of MIFs. It is very difficult to manually extract the large number of MIFs from CAD

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Das, Shantanu Kumar. "Automatic extraction of mechanical interlocking features from CAD model." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 14, no. 01 (2022): 1–9. http://dx.doi.org/10.18090/samriddhi.v14i01.1.

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This paper represents, classifies, and automatic extracts the mechanical interlocking features (MIFs) from the CAD model. Mechanical interlocking features (MIFs) are geometric features of two or more components when physically interlock that prevent the relative movement in any or certain directions. A set of contact faces in proximity and their characteristic arrangement are used to represent the MIFs. This characteristics arrangement of contact faces and their topological relationships help in classification of MIFs. It is very difficult to manually extract the large number of MIFs from CAD

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4

B, Guo. "Effect of Fluid Contact Angle of Oil-wet Ceramic Fracture Proppant on the Water Flow from Sandstones to Proppant Packs." Petroleum & Petrochemical Engineering Journal 6, no. 1 (2022): 1–9. http://dx.doi.org/10.23880/ppej-16000295.

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Ceramic fracture proppants are extensively used for enhancing oil and gas well productivity in low-permeability reservoirs. Previous work reported attracting-oil-repelling-water (AORW) property of oil-wet proppants at the faces of fractures. Because of lack of method for measuring contact angle of proppant packs, the terms water-wet proppant and oil-wet proppant were defined on the basis of observations of liquid droplets on the surfaces of proppant packs without quantitative measurement. An innovative method was developed in this study to determine the contact angles of fracture proppant pack

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Wang, Ming, and Boyun Guo. "Effect of Fluid Contact Angle of Oil-Wet Fracture Proppant on the Competing Water/Oil Flow in Sandstone-Proppant Systems." Sustainability 14, no. 7 (2022): 3766. http://dx.doi.org/10.3390/su14073766.

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Ceramic fracture proppants are extensively used for enhancing the recovery of fossil energy and geothermal energy. Previous work has reported the attracting-oil-repelling-water (AORW) property of oil-wet proppants at the faces of fractures. Because of the lack of a method for measuring the contact angle of proppant packs, the terms water-wet proppant and oil-wet proppant were defined based on observations of liquid droplets on the surfaces of proppant packs without quantitative measurement. An innovative method was developed in this study to determine the contact angles of fracture proppant pa

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6

Zakharova, I. N., M. I. Pykov, I. V. Berezhnaya, et al. "Functional disorders of the biliary tract. What a pediatrician needs to know." Medical Council, no. 11 (July 16, 2018): 91–102. http://dx.doi.org/10.21518/2079-701x-2018-11-91-102.

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According to the frequency of contact with a doctor, abdominal pain in children is second only to respiratory diseases. Since the pain syndrome is a nonspecific manifestation of various pathologies, the doctor faces a serious diagnostic task, which is especially difficult in pediatric practice. One of the frequent causes of abdominal pain in children is a disruption of the function of the digestive tract, in particular, the dysfunction of the billiard tract. The article considers etiopathogenetic mechanisms of development of functional disorders of the biliary tract in children, classification

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7

Šiber, Antonio. "Icosadeltahedral Geometry of Geodesic Domes, Fullerenes and Viruses: A Tutorial on the T-Number." Symmetry 12, no. 4 (2020): 556. http://dx.doi.org/10.3390/sym12040556.

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The Caspar–Klug (CK) classification of viruses is discussed by parallel examination of geometry of icosahedral geodesic domes, fullerenes, and viruses. The underlying symmetry of all structures is explained and thoroughly visually represented. Euler’s theorem on polyhedra is used to calculate the number of vertices, edges, and faces in domes, number of atoms, bonds, and pentagonal and hexagonal rings in fullerenes, and number of proteins and protein–protein contacts in viruses. The T-number, the characteristic for the CK classification, is defined and discussed. The superposition of fullerene

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8

Sueno, Hajah, Christian Lloyd Amar, John Ronelo Menasalvas, Aaron Jake Candido, and Cuburt Balanon. "ENHANCED REAL-TIME DETECTION OF FACE MASK WITH ALARM SYSTEM USING MOBILENETV2." EPH - International Journal of Science And Engineering 8, no. 8 (2022): 1–8. http://dx.doi.org/10.53555/ephse.v8i8.1902.

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To prevent the coronavirus from spreading, the government adopted measures such as wearing a face mask in public locations. The researchers aimed to create a face detection system using the MobilenetV2 architecture that would identify a person’s faces and determine whether they were wearing a face mask. The built model will help to reduce the danger of viral transmission. In this study, face mask detection is achieved using a machine learning algorithm and the classification method using MobileNetV2. The steps for building the model are data gathering, data pre-processing, splitting the data,

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9

Syrjänen, Elmeri, Marco Tullio Liuzza, Håkan Fischer, and Jonas K. Olofsson. "Do Valenced Odors and Trait Body Odor Disgust Affect Evaluation of Emotion in Dynamic Faces?" Perception 46, no. 12 (2017): 1412–26. http://dx.doi.org/10.1177/0301006617720831.

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Disgust is a core emotion evolved to detect and avoid the ingestion of poisonous food as well as the contact with pathogens and other harmful agents. Previous research has shown that multisensory presentation of olfactory and visual information may strengthen the processing of disgust-relevant information. However, it is not known whether these findings extend to dynamic facial stimuli that changes from neutral to emotionally expressive, or if individual differences in trait body odor disgust may influence the processing of disgust-related information. In this preregistered study, we tested wh

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Zhang, Xudong, Zejun Yan, Qianfeng Wu, et al. "Community Governance Based on Sentiment Analysis: Towards Sustainable Management and Development." Sustainability 15, no. 3 (2023): 2684. http://dx.doi.org/10.3390/su15032684.

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The promotion of community governance by digital means is an important research topic in developing smart cities. Currently, community governance is mostly based on reactive response, which lacks timely and proactive technical means for emergency monitoring. The easiest way for residents to contact their properties is to call the property call center, and the call centers of many properties store many speech data. However, text sentiment classification in community scenes still faces challenges such as small corpus size, one-sided sentiment feature extraction, and insufficient sentiment classi

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11

Zhuang, Yixin, Yue Tian, and Wenda Li. "A Novel Non-Contact Multi-User Online Indoor Positioning Strategy Based on Channel State Information." Sensors 24, no. 21 (2024): 6896. http://dx.doi.org/10.3390/s24216896.

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The IEEE 802.11bf-based wireless fidelity (WiFi) indoor positioning system has gained significant attention recently. It is important to recognize that multi-user online positioning occurs in real wireless environments. This paper proposes an indoor positioning sensing strategy that includes an optimized preprocessing process and a new machine learning (ML) method called NKCK. The NKCK method can be broken down into three components: neighborhood component analysis (NCA) for dimensionality reduction, K-means clustering, and K-nearest neighbor (KNN) classification with cross-validation (CV). Th

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Lakshmi, N. Dhana, Pranavi Nagubandi, Muralidhar Yelet, and K. Vishnu Vardan. "Automated Attendance System Based on Facial Recognition using Viola-Jones Algorithm." Asian Journal of Applied Science and Technology 06, no. 02 (2022): 82–91. http://dx.doi.org/10.38177/ajast.2022.6210.

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Facial Recognition is the most used technology nowadays. Apart from Bio-metrics, Iris scan, fingerprint recognition methodologies, facial recognition is emerging recognition methodology these days. One of the most effective applications of this methodology is automated attendance using facial recognition, which is contact less, secure, and effective unlike in tradition way (manual attendance) it saves more time. Methodology used in this project involves Viola-Jones algorithm for face detection and Eigenfaces approach for feature selection and classification. In Viola-jones algorithm inputs are

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13

Yuan, Fujiang, Zihao Zuo, Yang Jiang, et al. "AI-Driven Optimization of Blockchain Scalability, Security, and Privacy Protection." Algorithms 18, no. 5 (2025): 263. https://doi.org/10.3390/a18050263.

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With the continuous development of technology, blockchain has been widely used in various fields by virtue of its decentralization, data integrity, traceability, and anonymity. However, blockchain still faces many challenges, such as scalability and security issues. Artificial intelligence, with its powerful data processing capability, pattern recognition ability, and adaptive optimization algorithms, can improve the transaction processing efficiency of blockchain, enhance the security mechanism, and optimize the privacy protection strategy, thus effectively alleviating the limitations of bloc

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14

Tamtama, Gabriel Indra Widi, and I. Kadek Dendy Senapartha. "Fake Face Detection System Using MobileNets Architecture." CESS (Journal of Computer Engineering, System and Science) 8, no. 2 (2023): 329. http://dx.doi.org/10.24114/cess.v8i2.43762.

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Sistem pengenalan wajah merupakan salah satu metode dalam teknik biometric yang menggunakan wajah untuk proses identifikasi atau verifikasi seseorang. Teknologi ini tidak memerlukan kontak fisik seperti verifikasi sidik jari dan diklaim lebih aman karena wajah setiap orang memiliki karakter yang berbeda-beda. Terdapat dua fase utama dalam sistem biometrik wajah, yaitu deteksi wajah palsu Presentation Attack (PA) detektor dan pengenalan wajah (face recognition). Penelitian ini melakukan eksperimen dengan tujuan membangun sebuah model pembelajaran mesin (machine learning) berbasis mobile untuk m

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Jegorowa, Albina, Jarosław Kurek, Michał Kruk, and Jarosław Górski. "The Use of Multilayer Perceptron (MLP) to Reduce Delamination during Drilling into Melamine Faced Chipboard." Forests 13, no. 6 (2022): 933. http://dx.doi.org/10.3390/f13060933.

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Drilling into melamine-faced-wood-based panels is one of the most common processes in modern furniture manufacturing. Delamination is usually the main and the most troublesome quality defect in this case. A lot of scientific studies draw the conclusion that the progress of tool wearing during the cutting of wood-based materials is the key problem. Therefore, tool condition monitoring and the replacement of worn tools at the right time is the most useful and common (in the industrial practice) way to reduce delamination. However, the automation of this process is still a problem due to various

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16

Su-Gyeong Yu, Su-Gyeong Yu, So-Eui Kim Su-Gyeong Yu, Kun Ha Suh So-Eui Kim, and Eui Chul Lee Kun Ha Suh. "Effect of Facial Shape Information Reflected on Learned Features in Face Spoofing Detection." 網際網路技術學刊 23, no. 3 (2022): 517–25. http://dx.doi.org/10.53106/160792642022052303010.

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<p>Face recognition is a convenient and non-contact biometric method used widely for secure personal authentication. However, the face is an exposed body part, and face spoofing attacks, which compromise the security of systems that use face recognition for authentication, are frequently reported. Previous face spoofing attack detection studies proposed texture-analysis-based methods using handcrafted features or learned features to prevent spoofing attacks. However, it is unclear whether spoofing attack images reflect the face distortion resulting from failing to reflect the three-dimen

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17

Acton, Claire, Nicola Ivins, Paul Bainbridge, and Paul Browning. "Management of incontinence-associated dermatitis patients using a skin protectant in acute care: a case series." Journal of Wound Care 29, no. 1 (2020): 18–26. http://dx.doi.org/10.12968/jowc.2020.29.1.18.

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Objective: Incontinence-associated dermatitis (IAD) is a common type of irritant contact dermatitis. It is categorised by persistent erythema and can be associated with denudation and/or colonisation and infection. IAD is challenging to treat and affects 3.4–50% of patients. This case series evaluates a novel, elastomeric, advanced skin protectant (3M Cavilon Advanced Skin Protectant) in a UK acute health-care setting, for the management of IAD in patients suffering from moisture-associated skin damage (MASD) in the sacral/genital area. Method: The patient's skin was assessed by clinicians usi

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18

To, CY, P. Cheung, W. Ng, and WY Mok. "Comparison of facet joint violation in lumbar posterior spinal instrumentation using different techniques including cortical bone trajectory." Journal of Orthopaedics, Trauma and Rehabilitation 27, no. 1 (2020): 57–62. http://dx.doi.org/10.1177/2210491720903471.

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Study background: A retrospective study to compare the rate of facet joint violation (FJV) in lumbar posterior spinal instrumentation using open pedicle screw, percutaneous pedicle screw, and cortical bone trajectory (CBT) technique. CBT is a new posterior spinal instrumentation technique in which a more caudal entry point can minimize iatrogenic damage to the cranial facet joint. Only one recent study reports incidence of FJV of 11%; however, no previous reports comment on radiological outcomes comparing to traditional open and percutaneous screws. Methods: We reviewed 90 patients who underwe

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Solis-Arrazola, Manuel A., Raul E. Sanchez-Yanez, Ana M. S. Gonzalez-Acosta, Carlos H. Garcia-Capulin, and Horacio Rostro-Gonzalez. "Eliciting Emotions: Investigating the Use of Generative AI and Facial Muscle Activation in Children’s Emotional Recognition." Big Data and Cognitive Computing 9, no. 1 (2025): 15. https://doi.org/10.3390/bdcc9010015.

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This study explores children’s emotions through a novel approach of Generative Artificial Intelligence (GenAI) and Facial Muscle Activation (FMA). It examines GenAI’s effectiveness in creating facial images that produce genuine emotional responses in children, alongside FMA’s analysis of muscular activation during these expressions. The aim is to determine if AI can realistically generate and recognize emotions similar to human experiences. The study involves generating a database of 280 images (40 per emotion) of children expressing various emotions. For real children’s faces from public data

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Dave, Priya, Roberto Rojas-Cessa, Ziqian Dong, and Vatcharapan Umpaichitra. "Survey of Saliva Components and Virus Sensors for Prevention of COVID-19 and Infectious Diseases." Biosensors 11, no. 1 (2020): 14. http://dx.doi.org/10.3390/bios11010014.

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The United States Centers for Disease Control and Prevention considers saliva contact the lead transmission mean of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes the coronavirus disease 2019 (COVID-19). Saliva droplets or aerosols expelled by sneezing, coughing, breathing, and talking may carry this virus. People in close distance may be exposed directly to these droplets or indirectly when touching the droplets that fall on surrounding surfaces and ending up contracting COVID-19 after touching the mucosa tissue of their faces. It is of great interest to quickly an

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Anatoliy, Kostruba, and S. Hyliaka Oleh. "Theoretical substantiation of the model of borrowing rights-terminating facts." Rivista di Studi sulla Sostenibilita, no. 2 (March 25, 2021): 189–203. https://doi.org/10.3280/RISS2020-002-S1014.

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The relevance of the research is determined by the fact that it is necessary to differentiate the possibility of applying rights-terminating facts not only in general constructs of the civil branch of legislation but also in a number of private practices of sub-industries regulating general socio-economic relations. Such differentiation can contribute to the sustainable development of the civil sector of legislation. The aim of the article was to show new constructions in connection with the judicial system and the system of socio-economic forecasting. The main importance of legal consists in

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Wang, Yan, Shuoshuo Niu, Jiahao Zhang, et al. "Development Status of Dynamic Sealing Technology and Discussion on Advanced Sealing Technologies." Lubricants 13, no. 1 (2025): 11. https://doi.org/10.3390/lubricants13010011.

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This paper reviews the current state of dynamic sealing technologies, examining the challenges faced by conventional sealing methods under complex working conditions, such as high temperature, high pressure, and corrosive environments. It also provides a concise overview of the status and developmental trends in sealing inspection technologies. From the perspective of obstruction mechanisms, this study reinterprets the concept of sealing science by redefining the classification of sealing types based on solid-phase medium obstruction, fluid hydrostatic and hydrodynamic obstruction, fluid pumpi

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Manari, da Silva Andréa, and Marques Valeska Regina Soares. "PREVALENCE AND FACTORS ASSOCIATED WITH BREASTFEEDING IN THE 1st HOUR OF LIFE AT THE PROFESSOR ALBERTO ANTUNES UNIVERSITY HOSPITAL IN 2017." International Journal of Education and Research 1, no. 1 (2021): 28–34. https://doi.org/10.5281/zenodo.10573530.

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Abstract Breastfeeding in the first hour of life is a key factor in reducing neonatal mortality rates, besides providing an initial contact that favors the establishment of the mother-child bond, bringing physical and psychological benefits to both. The research aims to analyze the prevalence and factors associated with breastfeeding in the first hour of life at the University Hospital Professor Alberto Antunes in the year 2017. The study is a documentary, descriptive with a quantitative approach The result showed that, according to the WHO cla

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Anatoliy, Kostruba. "The classification of right-depriving jural facts in civil law of Ukraine." Вісник господарського судочинства, no. 6 (December 20, 2011): 121–27. https://doi.org/10.5281/zenodo.3762875.

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The object of the article is the determination of classification criteria of right-depriving jural facts and their features in the aspect of conducted division. The classifications on the basis of complex criterion of consequences and will of person to the caused consequences, character of cause-effect relation and type of legal relationships are analyzed in the article. In addition the cases of direct and indirect consequences in the form of depravation of rights or legal relationships by jural fact, the features of the material and obligatory right-depriving jural facts and objective and sub

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Anatoliy, Kostruba. "The classification of right-depriving jural facts in the civil law of Ukraine that hasn't been widely illustrated in literature." Вісник господарського судочинства, no. 1 (April 10, 2012): 84–90. https://doi.org/10.5281/zenodo.3760090.

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The object of the article is the determination of classification criteria of right-depriving jural facts and their features in the aspect of conducted division. The classifications on the basis of criteria of quantity of consequences, belonging to the sphere of law, the character of influence to the legal status of the participants of legal civil relationships and other criteria are analyzed in the article. This research is the first in Ukraine that is completely devoted to the classification of right-depriving jural facts.

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26

Chiroro, Patrick, and Tim Valentine. "An Investigation of the Contact Hypothesis of the Own-race Bias in Face Recognition." Quarterly Journal of Experimental Psychology Section A 48, no. 4 (1995): 879–94. http://dx.doi.org/10.1080/14640749508401421.

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Although previous studies have demonstrated that faces of one's own race are recognized more accurately than are faces of other races, the theoretical basis of this effect is not clearly understood at present. The experiment reported in this paper tested the contact hypothesis of the own-race bias in face recognition using a cross-cultural design. Four groups of subjects were tested for their recognition of distinctive and typical own-race and other-race faces: (1) black Africans who had a high degree of contact with white faces, (2) black Africans who had little or no contact with white faces

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Evadianti, Yuli, and Retno Suhesi Sahriyani. "SOCIALIZATION OF LONG TERM CONTRACEPTION FAMILY PLANNING PROGRAM BKKBN SIDOMULYO LAMPUNG SELATAN." Journal of Public Relations and Digital Communication (JPRDC) 2, no. 1 (2024): 57–63. https://doi.org/10.24967/jprdc.v2i1.3080.

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. Contraception Period Long that is is method usage contraception futures long Which in its use have effectiveness And level continuity usage Which tall with number failure Which low. The classification contraception period long consists from tool contraception IUD, Implant, And Contact (steady contraception). To inform how to use contraception In the long term, the instructor's skills as a communicator are needed, as well notice message What just Which will be delivered as well as media What Which will used as an important point for the success of the implementation of socialization, apart fr

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Anatoliy, Kostruba. "On Right-Terminating Legal Facts in Personal Liability and the Concept of Liability Termination." SCIENCE AND BUSINESS: DEVELOPMENT WAYS 20, no. 2 (2013): 82–87. https://doi.org/10.5281/zenodo.3693248.

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This paper discusses the right-terminating legal  facts  in  the  civil  law  of  obligations. The separation of grounds for termination of liabilities and property rights has been analyzed. The nature of the categories that are used to denote the right-terminating the legal facts in the field of personal liability has been determined.

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Menshykov, A. V., V. A. Menshykov, and O. Yu Kladova. "NONLINEAR PROBLEM OF INTERFACE CRACK BEHAVIOR UNDER THE ACTION OF SHEARING WAVE." Journal of Numerical and Applied Mathematics, no. 1 (135) (2021): 158–64. http://dx.doi.org/10.17721/2706-9699.2021.1.21.

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Solution of the problem for an interface crack under the action of a harmonic shear wave is presented. It is shown that the same problems solutions of other authors were performed without taking into account the crack faces contact, and results obtained indicate the interpenetration of the faces, that is not possible. Thus, it is proved that the problem is nonlinear because the positions and sizes of the contact zone are unknown and variable during the loading. The solution is obtained by the boundary integral equations method taking into account the contact interaction of the crack faces: usi

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Hoss, Rebecca A., Jennifer L. Ramsey, Angela M. Griffin, and Judith H. Langlois. "The Role of Facial Attractiveness and Facial Masculinity/Femininity in Sex Classification of Faces." Perception 34, no. 12 (2005): 1459–74. http://dx.doi.org/10.1068/p5154.

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We tested whether adults (experiment 1) and 4–5-year-old children (experiment 2) identify the sex of highly attractive faces faster and more accurately than not very attractive faces in a reaction-time task. We also assessed whether facial masculinity/femininity facilitated identification of sex. Results showed that attractiveness facilitated adults' sex classification of both female and male faces and children's sex classification of female, but not male, faces. Moreover, attractiveness affected the speed and accuracy of sex classification independently of masculinity/femininity. High masculi

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Mirsalimov, Vagif M. "Partial closure of the periodic system of variable width bridged slits in an isotropic medium under compression." International Journal of Damage Mechanics 29, no. 4 (2019): 529–46. http://dx.doi.org/10.1177/1056789519860568.

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The problem of compression of an isotropic medium by a periodic system of variable width slits comparable with elastic deformations is considered. The slit faces are under internal pressure. It is considered that the slits have end zones wherein material's tractions act. It is accepted that interaction of the slit's surface under applied loads may reduce the formation of contact zones of their surfaces. The formation of several contact areas of faces of each slit is studied. Therewith, it is considered that on some parts of a contact area there happens stick of the faces, on the remaining part

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Wei, Long, Peng Gao Zhang, and Gui Fang Fang. "Simulation Calculation of Friction Factor of the End Face for Mechanical Seals Based on Fractal Theory." Applied Mechanics and Materials 687-691 (November 2014): 142–47. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.142.

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In order to study the effects of operating parameters and surface topography on friction factors between the end faces for mechanical seals, a friction factor fractal model between end faces for contact mechanical seals was established based on the contact fractal model and the average film thickness fractal model, adopting fractal parameters to represent surface topography, separating friction into viscous shear friction of liquid film and contact friction of asperities, and representing the effect of actual rough surface on viscous shear stress of liquid film by introducing the contact facto

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Menshykov, O. V., and I. A. Guz. "Effect of Contact Interaction on the Stress Intensity Factors for a Crack under Harmonic Loading." Applied Mechanics and Materials 5-6 (October 2006): 173–80. http://dx.doi.org/10.4028/www.scientific.net/amm.5-6.173.

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This paper concerns fracture dynamic problems for elastic cracked solids with allowance for crack faces contact interaction. The contact problem for a penny-shaped crack with an initial opening under normally incident tension-compression wave is solved by the method of boundary integral equations. The solution is compared with those obtained without allowance for crack faces contact interaction for various values of the initial opening.

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Kulkarni, Raghavendra, and Dr P. Nageswar Rao. "Classes of Unique Face and Its Classification." INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY 7, no. 1 (2013): 968–73. http://dx.doi.org/10.24297/ijmit.v7i1.716.

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Near resembling faces ,Look alike faces, disguised faces and many more are todays challenges for researchers in the field of face recognition and these challenges become more serious in case of large facial Variations. Humans are able to identify reliably a large number of faces but a automated face recognition system must be face specific, it should effectively use features that discriminate a face from others by preferably amplifying distinctive characteristics of face. Face recognition has drawn wide attention from researchers in areas of machine learning, computer vision, pattern recogniti

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Menshykov, Oleksandr, Vasyl Menshykov, and Olga Kladova. "NONLINEAR PROBLEM OF FRACTURE MECHANICS OF AN INTERFACE CRACK SUBJECTED TO SHEAR WAVE." Bulletin of the National Technical University "KhPI". Series: Mathematical modeling in engineering and technologies, no. 2 (November 30, 2021): 55–64. http://dx.doi.org/10.20998/2222-0631.2021.02.07.

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Solution for the problem for an interface crack under the action of a harmonic shear wave in normal direction is presented. The contact of the crack faces is put into consideration. The problem is solved by the boundary integral equations method, the vector components in the boundary integral equations are presented by Fourier series. The unilateral Signorini boundary conditions are involved to prevent the interpenetration of the crack faces and the emergence of tensile forces in the contact zone. Amonton-Coulomb Friction Law included allows to put into consideration relative resting of the cr

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Farhangdoost, Khalil, and Mohammad Kavoosi. "Effect of Lubricant on Surface Rolling Contact Fatigue Cracks." Advanced Materials Research 97-101 (March 2010): 793–96. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.793.

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This study performed the finite element analysis of the cycle of stress intensity factors at the surface initiated rolling contact fatigue crack tip under Hertzian contact stress including an accurate model of friction between the faces of the crack and the effect of fluid inside the crack. A two-dimensional model of a rolling contact fatigue crack has been developed with FRANC-2D software. The model includes the effect of Coulomb friction between the faces of the crack. The fluid in the crack was assumed not only to lubricate the crack faces and reduce the crack face friction coefficient but

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Taubert, Jessica, Celine van Golde, and Frans A. J. Verstraten. "Who is the Usual Suspect? Evidence of a Selection Bias Toward Faces That Make Direct Eye Contact in a Lineup Task." i-Perception 8, no. 1 (2017): 204166951769041. http://dx.doi.org/10.1177/2041669517690411.

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The speed and ease with which we recognize the faces of our friends and family members belies the difficulty we have recognizing less familiar individuals. Nonetheless, overconfidence in our ability to recognize faces has carried over into various aspects of our legal system; for instance, eyewitness identification serves a critical role in criminal proceedings. For this reason, understanding the perceptual and psychological processes that underlie false identification is of the utmost importance. Gaze direction is a salient social signal and direct eye contact, in particular, is thought to ca

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Gonen, May, and Haytam Kasem. "Effect of the Mechanical Properties of Soft Counter-Faces on the Adhesive Capacity of Mushroom-Shaped Biomimetic Microstructures." Biomimetics 8, no. 3 (2023): 327. http://dx.doi.org/10.3390/biomimetics8030327.

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The effects of mechanical properties and contact environment conditions on the adhesiveness of the biomimetic adhesive mushroom-shaped micro-structure have been experimentally investigated. The idea is based on the adhesive micro-structures and surfaces inspired by nature after observing the abilities of some animals. Applications are proposed in various fields of engineering and technology. However, to enable unconventional uses of these biomimetic adhesion surfaces, such as in the biomedical field, it is necessary to adjust and optimize their tribological properties (friction, adhesion, and

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Graf, Arnulf B. A., Felix A. Wichmann, Heinrich H. Bülthoff, and Bernhard Schölkopf. "Classification of Faces in Man and Machine." Neural Computation 18, no. 1 (2006): 143–65. http://dx.doi.org/10.1162/089976606774841611.

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We attempt to shed light on the algorithms humans use to classify images of human faces according to their gender. For this, a novel methodology combining human psychophysics and machine learning is introduced. We proceed as follows. First, we apply principal component analysis (PCA) on the pixel information of the face stimuli. We then obtain a data set composed of these PCA eigenvectors combined with the subjects' gender estimates of the corresponding stimuli. Second, we model the gender classification process on this data set using a separating hyperplane (SH) between both classes. This SH

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HARADA, Masae, and Masaaki SIBUYA. "Effectiveness of the Classification Using Chernoff Faces." Japanese journal of applied statistics 20, no. 1 (1991): 39–48. http://dx.doi.org/10.5023/jappstat.20.39.

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Hassanat, Ahmad B., V. B. Surya Prasath, Bassam M. Al Mahadeen, and Samaher Madallah Moslem Alhasanat. "Classification and gender recognition from veiled-faces." International Journal of Biometrics 9, no. 4 (2017): 347. http://dx.doi.org/10.1504/ijbm.2017.088251.

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Alhasanat, Samaher Madallah Moslem, V. B. Surya Prasath, Bassam M. Al Mahadeen, and Ahmad B. Hassanat. "Classification and gender recognition from veiled-faces." International Journal of Biometrics 9, no. 4 (2017): 347. http://dx.doi.org/10.1504/ijbm.2017.10009351.

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Gonzalo, Jesús. "Classification results for contact forms." Indagationes Mathematicae (Proceedings) 89, no. 3 (1986): 289–312. http://dx.doi.org/10.1016/1385-7258(86)90016-8.

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Aguado, Luis, Ignacio Serrano-Pedraza, Sonia Rodríguez, and Francisco J. Román. "Effects of Spatial Frequency Content on Classification of Face Gender and Expression." Spanish journal of psychology 13, no. 2 (2010): 525–37. http://dx.doi.org/10.1017/s1138741600002225.

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The role of different spatial frequency bands on face gender and expression categorization was studied in three experiments. Accuracy and reaction time were measured for unfiltered, low-pass (cut-off frequency of 1 cycle/deg) and high-pass (cut-off frequency of 3 cycles/deg) filtered faces. Filtered and unfiltered faces were equated in root-mean-squared contrast. For low-pass filtered faces reaction times were higher than unfiltered and high-pass filtered faces in both categorization tasks. In the expression task, these results were obtained with expressive faces presented in isolation (Experi

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Angeli, A., and W. Gerbino. "Categorical Effects in the Perception of Familiar Faces." Perception 26, no. 1_suppl (1997): 71. http://dx.doi.org/10.1068/v970065.

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Photographs of morphed faces were shown to close friends of portrayed individuals. Three tasks were used: localisation of a morphed target on the continuum between the two original faces, simultaneous same - different discrimination of face pairs separated by a 20% morphing step (AB task), and sequential classification of the same pairs (ABX task). Localisation data were plotted against morph coefficients. Evidence of categorical processing was provided by steeper functions for upright vs upside-down faces. In the AB task, intermediate faces were discriminated better than faces separated by th

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Mishra, Debani Prasad, Sanhita Mishra, Smrutisikha Jena, and Surender Reddy Salkuti. "Image classification using machine learning." Indonesian Journal of Electrical Engineering and Computer Science 31, no. 3 (2023): 1551. http://dx.doi.org/10.11591/ijeecs.v31.i3.pp1551-1558.

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The objective of this paper is to implement different tools available in machine learning/artificial intelligence to classify faces and identify different features, highlights, and correlations or similarities between different celebrity faces which can apply in everyday security purposes to identity virtually if the authorized personnel is using certain access or not. The material present in this paper is a literature review of a machine learning model developed by the students. This is a classical problem of machine learning executed using a support vector machine. Images are separated based

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Debani, Prasad Mishra, Mishra Sanhita, Jena Smrutisikha, and Reddy Salkuti Surender. "Image classification using machine learning." Image classification using machine learning 31, no. 3 (2023): 1551–58. https://doi.org/10.11591/ijeecs.v31.i3.pp1551-1558.

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The objective of this paper is to implement different tools available in machine learning/artificial intelligence to classify faces and identify different features, highlights, and correlations or similarities between different celebrity faces which can apply in everyday security purposes to identity virtually if the authorized personnel is using certain access or not. The material present in this paper is a literature review of a machine learning model developed by the students. This is a classical problem of machine learning executed using a support vector machine. Images are separated based

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GAO, YONGSHENG, and MAYLOR K. H. LEUNG. "COMBINED CLASSIFICATION OF MULTIPLE VIEWS USING FACIAL CORNERS." International Journal of Pattern Recognition and Artificial Intelligence 16, no. 05 (2002): 589–602. http://dx.doi.org/10.1142/s021800140200185x.

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The profile view of a face provides a complementary structure that is not seen in the frontal view. The classification system combining both frontal and profile views of faces can improve the classification accuracy. And it would be more foolproof because it is difficult to fool the profile face identification by a mask. This paper proposes a new face recognition approach, which can be applied on both frontal and profile faces, to build a robust combined multiple view face identification system. The recognition employs a novel facial corner coding and matching method, and integrates the outlin

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Wang, Rong. "Original and Mirror Face Images and Minimum Squared Error Classification for Visible Light Face Recognition." Scientific World Journal 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/842084.

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In real-world applications, the image of faces varies with illumination, facial expression, and poses. It seems that more training samples are able to reveal possible images of the faces. Though minimum squared error classification (MSEC) is a widely used method, its applications on face recognition usually suffer from the problem of a limited number of training samples. In this paper, we improve MSEC by using the mirror faces as virtual training samples. We obtained the mirror faces generated from original training samples and put these two kinds of samples into a new set. The face recognitio

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Johnston, Robert A., Eleanor Tomlinson, Chris Jones, and Alan Weaden. "Face Classification in Schizophrenia: Evidence for a Sensitivity to Distinctiveness." Perception 38, no. 5 (2009): 702–7. http://dx.doi.org/10.1068/p6291.

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The face-processing skills of people with schizophrenia were compared with those of a group of unimpaired individuals. Participants were asked to make speeded face-classification decisions to faces previously rated as being typical or distinctive. The schizophrenic group responded more slowly than the unimpaired group; however, both groups demonstrated the customary sensitivity to the distinctiveness of the face stimuli. Face-classification latencies made to typical faces were shorter than those made to distinctive faces. The implication of this finding with the schizophrenic group is discusse

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