Long Term Revolution (LTE) is the most common 4th generation cellular networks thanks to its high data transmission rate and wide coverage. However, LTE networks have many security vulnerabilities in terms of network architecture, access and handover procedure, media and machine type communications. This paper focuses on enhancing the performance and security functions of the access procedure in LTE/LTE-Advance wireless networks by a proposal, which can not only provide security functions to the LTE access procedure, but also improve the performance of the process. The protocol has been systematically verified by using the Automated Validation of Internet Security Protocols and Applications (AVISPA) tool to demonstrate its ability to prevent various types of malicious attacks. The security functions and performance of the proposed protocol have also been compared to some existing solutions to show its advantages.
{"title":"A Secure Authentication Protocol with Performance Enhancements for 4G LTE/LTE-A Wireless Networks","authors":"Vu Thi Hoang Ahn, M. Ma","doi":"10.1145/3475971.3475977","DOIUrl":"https://doi.org/10.1145/3475971.3475977","url":null,"abstract":"Long Term Revolution (LTE) is the most common 4th generation cellular networks thanks to its high data transmission rate and wide coverage. However, LTE networks have many security vulnerabilities in terms of network architecture, access and handover procedure, media and machine type communications. This paper focuses on enhancing the performance and security functions of the access procedure in LTE/LTE-Advance wireless networks by a proposal, which can not only provide security functions to the LTE access procedure, but also improve the performance of the process. The protocol has been systematically verified by using the Automated Validation of Internet Security Protocols and Applications (AVISPA) tool to demonstrate its ability to prevent various types of malicious attacks. The security functions and performance of the proposed protocol have also been compared to some existing solutions to show its advantages.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121514957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The overall goal of this paper is to use Smartpls Software to investigate the effects of brand equity components on purchasing intentions by PLS-SEM. PLS-SEM algorithm in Smartpls 3.2.7 for analyzing statistics. The study was conducted in Ho Chi Minh City, Vietnam. The results showed that there is a noticeable positive relationship between brand equity components on consumer purchasing intentions, related to their willingness to continue buying the brand of conditioner they love. It found that Brand Awareness, Brand Association, Brand Loyal, and Brand Perceived Quality have a positive and statistically significant impact on Customer Purchase Intention. Brand loyalty and brand awareness have a positive and strong influence on Customer Purchase Intention while Brand Perceived Quality and Brand Association effects are weaker than the Customer Purchase Intention.
{"title":"PLS-SEM algorithm in Brand Equity Component","authors":"N. Ngan, B. Khoi","doi":"10.1145/3475971.3475979","DOIUrl":"https://doi.org/10.1145/3475971.3475979","url":null,"abstract":"The overall goal of this paper is to use Smartpls Software to investigate the effects of brand equity components on purchasing intentions by PLS-SEM. PLS-SEM algorithm in Smartpls 3.2.7 for analyzing statistics. The study was conducted in Ho Chi Minh City, Vietnam. The results showed that there is a noticeable positive relationship between brand equity components on consumer purchasing intentions, related to their willingness to continue buying the brand of conditioner they love. It found that Brand Awareness, Brand Association, Brand Loyal, and Brand Perceived Quality have a positive and statistically significant impact on Customer Purchase Intention. Brand loyalty and brand awareness have a positive and strong influence on Customer Purchase Intention while Brand Perceived Quality and Brand Association effects are weaker than the Customer Purchase Intention.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127929769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings of the 3rd International Electronics Communication Conference","authors":"","doi":"10.1145/3475971","DOIUrl":"https://doi.org/10.1145/3475971","url":null,"abstract":"","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121575005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes a new method to improve the structure of convolutional neural networks to preserve training data based on obfuscation technique. The purpose of this approach is to protect data in a distributed environment when parties want to share datasets for training while ensuring data privacy. To solve this problem, we use a technique that obfuscates the input feature matrix in each region with the size of a pooling window randomly. Based on the properties of the max pooling function and the permutation of positions in each filter window, the resulting matrix has a constant result. The proposed method could be applied to all convolutional neural network models by editing the first convolutional layer. The input matrix shuffling is done randomly so it completely protects your privacy without changing the accuracy. The proposed method has been tested according to K-fold cross validation, achieving an average accuracy of 99.11% with an average error of deletion of 0.0882%.
{"title":"A New Method of the Convolutional Neural Network Structure Improvement to Protect Data Based on the Obfuscation","authors":"V. H. Pham, Thi Hong Van Le, Quang Huy Vu","doi":"10.1145/3475971.3475980","DOIUrl":"https://doi.org/10.1145/3475971.3475980","url":null,"abstract":"This paper proposes a new method to improve the structure of convolutional neural networks to preserve training data based on obfuscation technique. The purpose of this approach is to protect data in a distributed environment when parties want to share datasets for training while ensuring data privacy. To solve this problem, we use a technique that obfuscates the input feature matrix in each region with the size of a pooling window randomly. Based on the properties of the max pooling function and the permutation of positions in each filter window, the resulting matrix has a constant result. The proposed method could be applied to all convolutional neural network models by editing the first convolutional layer. The input matrix shuffling is done randomly so it completely protects your privacy without changing the accuracy. The proposed method has been tested according to K-fold cross validation, achieving an average accuracy of 99.11% with an average error of deletion of 0.0882%.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123982443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To solve spin transfer torque magnetic random access memory ( STT-MRAM ) “writing” problem in practical application, an MTJ reading and writing control circuit for one bit full adder is proposed. In this circuit, logic gate circuit combined with control timing sequence are used to control "reading" and "writing" time of MTJ device in full adder. Applying the control circuit, full-adder can be switched between reading and writing mode, MTJ can be written in reliably, and the normal function of full adder will not be affected. Simulation results show that, under the control of the circuit, writing to MTJ can be achieved effectively while the function of full adder can be realized. Compared with traditional device, applying MTJ can greatly reduce system power consumption without writing.
{"title":"An MTJ reading and writing control circuit applied in a 1-bit full adder","authors":"Yuehong Gong, Min Luo, Chenxu Wang","doi":"10.1145/3475971.3475976","DOIUrl":"https://doi.org/10.1145/3475971.3475976","url":null,"abstract":"To solve spin transfer torque magnetic random access memory ( STT-MRAM ) “writing” problem in practical application, an MTJ reading and writing control circuit for one bit full adder is proposed. In this circuit, logic gate circuit combined with control timing sequence are used to control \"reading\" and \"writing\" time of MTJ device in full adder. Applying the control circuit, full-adder can be switched between reading and writing mode, MTJ can be written in reliably, and the normal function of full adder will not be affected. Simulation results show that, under the control of the circuit, writing to MTJ can be achieved effectively while the function of full adder can be realized. Compared with traditional device, applying MTJ can greatly reduce system power consumption without writing.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117100353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the continuous improvement of people's demand for electricity, the topological structure of power grid is becoming more and more complex and the load is becoming more and more diverse. The power quality problem has attracted much attention, among which harmonic analysis is an important research basis. This paper proposes a harmonic detection method based on an improved fast independent component analysis (FastICA)-least squares method (LSM).This method is on the basis of the traditional FastICA. In order to solve the sensitivity of the algorithm to the initial value, the initial value is redefined when calculating the de-mixing matrix. And LSM to analyze the amplitude and phase of the separated signal. At the same time, with the view of reducing the number of iterations of harmonic detection, the traditional second-order convergence Newton's iteration is improved to extract the harmonic and fundamental signals in the mixed signal in the form of fifth-order convergence. Finally, the paper validates the method using analog signals and real signals. The results show that this method has fast detection speed and high accuracy, and is superior to other methods reported in the literature.
{"title":"Method Based On Improved FastICA-LSM For Harmonic Detection In Power System","authors":"Lei Li, Wenzhuo Huang, Yinghui Zhao","doi":"10.1145/3475971.3475973","DOIUrl":"https://doi.org/10.1145/3475971.3475973","url":null,"abstract":"With the continuous improvement of people's demand for electricity, the topological structure of power grid is becoming more and more complex and the load is becoming more and more diverse. The power quality problem has attracted much attention, among which harmonic analysis is an important research basis. This paper proposes a harmonic detection method based on an improved fast independent component analysis (FastICA)-least squares method (LSM).This method is on the basis of the traditional FastICA. In order to solve the sensitivity of the algorithm to the initial value, the initial value is redefined when calculating the de-mixing matrix. And LSM to analyze the amplitude and phase of the separated signal. At the same time, with the view of reducing the number of iterations of harmonic detection, the traditional second-order convergence Newton's iteration is improved to extract the harmonic and fundamental signals in the mixed signal in the form of fifth-order convergence. Finally, the paper validates the method using analog signals and real signals. The results show that this method has fast detection speed and high accuracy, and is superior to other methods reported in the literature.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122133358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A brand image was a valuable intangible asset that was hard to imitate and could sustain financial performance. This research analyzes brand image's effect on client loyalty: Mediating impact of client satisfaction at footwear stores. The research model was suggested from previous studies, and 266 purchasers who bought at footwear stores in Ho Chi Minh City, Vietnam was examined. The partial least squares (PLS) technique was utilized to estimate the measurement and structural models. The PLS technique was a widely accepted variance-based structural equation modeling (SEM) approach in social science and business. The findings of the analysis display that brand image associates positively with client satisfaction. Besides, the outcomes also prove that brand image relates positively to customer loyalty. Furthermore, the research findings support that customer satisfaction is a mediator variable in liking brand image and customer loyalty. Based on these findings, we suggest some implications for managerial and further research.
{"title":"The Effect of Brand Image on Client Loyalty: Mediating Impact of Client Satisfaction at Footwear Stores","authors":"D. T. Cuong","doi":"10.1145/3475971.3475982","DOIUrl":"https://doi.org/10.1145/3475971.3475982","url":null,"abstract":"A brand image was a valuable intangible asset that was hard to imitate and could sustain financial performance. This research analyzes brand image's effect on client loyalty: Mediating impact of client satisfaction at footwear stores. The research model was suggested from previous studies, and 266 purchasers who bought at footwear stores in Ho Chi Minh City, Vietnam was examined. The partial least squares (PLS) technique was utilized to estimate the measurement and structural models. The PLS technique was a widely accepted variance-based structural equation modeling (SEM) approach in social science and business. The findings of the analysis display that brand image associates positively with client satisfaction. Besides, the outcomes also prove that brand image relates positively to customer loyalty. Furthermore, the research findings support that customer satisfaction is a mediator variable in liking brand image and customer loyalty. Based on these findings, we suggest some implications for managerial and further research.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125292963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Huynh, M. Linh, Minh N. T. Nguyen, H. Ta, Duc Trung Nguyen
Rapid growth in high-speed communication technologies nowadays has led to the latest development and implementation of 5G and beyond globally thanks to the use of orthogonal frequency division multiplexing (OFDM) technique. However, such high-speed OFDM-based systems cannot function properly without massive tuning in several parts such as the use of time-interleaved analog-to-digital converter (TI-ADC) at the receivers in order to match with extremely high sampling rates while keeping affordable costs. A TI-ADC, in turn, poses many risks of deficiency to its processed data when not calibrated appropriately, mostly due to mismatches between sub-ADCs in a TI-ADC such as offset, gain and timing mismatches, which can significantly degrade an overall system performance. In this paper, we focus on gain mismatch. We propose a simple and efficient method to calibrate the gain mismatch based on the least-square (LS) algorithm assuming an AWGN channel. The simulation results show that our method is capable of significantly improving the bit error rate (BER) performance of OFDM systems.
{"title":"Time-Interleaved ADC Gain Mismatch Calibration in High-Speed OFDM Systems","authors":"V. Huynh, M. Linh, Minh N. T. Nguyen, H. Ta, Duc Trung Nguyen","doi":"10.1145/3475971.3475972","DOIUrl":"https://doi.org/10.1145/3475971.3475972","url":null,"abstract":"Rapid growth in high-speed communication technologies nowadays has led to the latest development and implementation of 5G and beyond globally thanks to the use of orthogonal frequency division multiplexing (OFDM) technique. However, such high-speed OFDM-based systems cannot function properly without massive tuning in several parts such as the use of time-interleaved analog-to-digital converter (TI-ADC) at the receivers in order to match with extremely high sampling rates while keeping affordable costs. A TI-ADC, in turn, poses many risks of deficiency to its processed data when not calibrated appropriately, mostly due to mismatches between sub-ADCs in a TI-ADC such as offset, gain and timing mismatches, which can significantly degrade an overall system performance. In this paper, we focus on gain mismatch. We propose a simple and efficient method to calibrate the gain mismatch based on the least-square (LS) algorithm assuming an AWGN channel. The simulation results show that our method is capable of significantly improving the bit error rate (BER) performance of OFDM systems.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129227093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industry value added is a crucial factor that keep the manufacturers to survive in the high business competitive environment. Also it encourage the economic growth by offering the opportunity to generate high income from international trade. Thus achieving in creating high level of value added become the point of interest for both manufacturers and governments. Hence, to investigate what determine such value added. This work is designed to present the effects of some business and economic variables, namely gross domestic product, consumer price index, domestic credit to the private sector, and gross capital formation on industry value added in the context of Thailand by utilizing the Bayesian vector autoregression (BVAR) model with the 58 periods of annual modified data running from 1960 to 2019. This model shows the interactions between these five variables and the forecast of industry value-added. The results from this work revealed that there exist the Granger Causality and reactions between domestic credit to private, domestic capital formulation, domestic general price level, growth of the gross domestic product, and industry value-added. Thus, we recommend that government authorities should 1) encourage more credit to manufacturers, 2) invest more in industrial-facilitate infrastructure and support more on private investment in capital formulation, 3) induce more country income, and 4) control the general price level within the country.
{"title":"On the Forecast of Thai Industry Value Added","authors":"N. Rojniruttikul, Adirek Vajrapatkul","doi":"10.1145/3475971.3475983","DOIUrl":"https://doi.org/10.1145/3475971.3475983","url":null,"abstract":"Industry value added is a crucial factor that keep the manufacturers to survive in the high business competitive environment. Also it encourage the economic growth by offering the opportunity to generate high income from international trade. Thus achieving in creating high level of value added become the point of interest for both manufacturers and governments. Hence, to investigate what determine such value added. This work is designed to present the effects of some business and economic variables, namely gross domestic product, consumer price index, domestic credit to the private sector, and gross capital formation on industry value added in the context of Thailand by utilizing the Bayesian vector autoregression (BVAR) model with the 58 periods of annual modified data running from 1960 to 2019. This model shows the interactions between these five variables and the forecast of industry value-added. The results from this work revealed that there exist the Granger Causality and reactions between domestic credit to private, domestic capital formulation, domestic general price level, growth of the gross domestic product, and industry value-added. Thus, we recommend that government authorities should 1) encourage more credit to manufacturers, 2) invest more in industrial-facilitate infrastructure and support more on private investment in capital formulation, 3) induce more country income, and 4) control the general price level within the country.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134012869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Nguyen, Ching-Hwa Cheng, Don-Gey Liu, Song-Toan Tran, Minh-Hai Le
In this paper, we implemented a direct Time of Flight (ToF) method to calculate the distance of a pulsed-LiDAR in high background lights on a Red Pitaya platform. In this proposed system, we utilized the Red Pitaya Kit to simulate the generation of LiDAR pulses. Another Kit used to capture, process data, and estimate the distance. Signals are acquired, including high-intensity background noise because LiDARs are requested to work in worse environments like sunlight, electric light, fog, etc. To overcome this problem, we proposed an Overlapping-edge (OE) technique to be combined with the Leading-edge (LE) method to detect pulses in noisy environments. Moreover, the sampling rate of the ADC in this platform was limited to 125Msps. Therefore, we performed an interpolation algorithm, namely Center of Mass (CoM), to increase the accuracy of the estimated distance. The experiment was performed on simulated signals with a signal-to-noise ratio of -8.5dB. The obtained result showed that the average success rate of measurements increased 7.56% compared with the Leading-edge method and the average accuracy reached nearly 7.1cm. In conclusion, we have built a high noise Pulse-LiDAR source and calculate distance on a Red Pitaya platform with a low cost and highly stable accuracy. The performance of a LiDAR system was also evaluated in this study.
{"title":"An Overlapping and Leading Edge Detection Combined Technique for Distance Estimation under High-Background Lights in a Pulsed-LiDAR System","authors":"T. Nguyen, Ching-Hwa Cheng, Don-Gey Liu, Song-Toan Tran, Minh-Hai Le","doi":"10.1145/3475971.3475974","DOIUrl":"https://doi.org/10.1145/3475971.3475974","url":null,"abstract":"In this paper, we implemented a direct Time of Flight (ToF) method to calculate the distance of a pulsed-LiDAR in high background lights on a Red Pitaya platform. In this proposed system, we utilized the Red Pitaya Kit to simulate the generation of LiDAR pulses. Another Kit used to capture, process data, and estimate the distance. Signals are acquired, including high-intensity background noise because LiDARs are requested to work in worse environments like sunlight, electric light, fog, etc. To overcome this problem, we proposed an Overlapping-edge (OE) technique to be combined with the Leading-edge (LE) method to detect pulses in noisy environments. Moreover, the sampling rate of the ADC in this platform was limited to 125Msps. Therefore, we performed an interpolation algorithm, namely Center of Mass (CoM), to increase the accuracy of the estimated distance. The experiment was performed on simulated signals with a signal-to-noise ratio of -8.5dB. The obtained result showed that the average success rate of measurements increased 7.56% compared with the Leading-edge method and the average accuracy reached nearly 7.1cm. In conclusion, we have built a high noise Pulse-LiDAR source and calculate distance on a Red Pitaya platform with a low cost and highly stable accuracy. The performance of a LiDAR system was also evaluated in this study.","PeriodicalId":337890,"journal":{"name":"Proceedings of the 3rd International Electronics Communication Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122198679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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