Internet of things (IoT)-based mobile crowdsensing system has been increasingly widely deployed in data-driven smart city construction for its high efficiency, participation and flexibility. However, the mobile crowds...
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Monitoring a tributary's water depth and velocity can provide a wealth of information for ecological systems. Typically, tributaries are located deep within the jungle, and manual measurement is the norm. the rese...
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Chatbots are basically designed to imitate any human interaction to automate interaction and support. Numerous benefits of chatbots has led to its increased usage by different organizations to provide essential assist...
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Chatbots are basically designed to imitate any human interaction to automate interaction and support. Numerous benefits of chatbots has led to its increased usage by different organizations to provide essential assistance to its various customers. the current interactive systems are mainly developed from two main concepts namely NLP and Machine Learning. Despite of this, there are certain challenges and limitations of current chatbots. In this paper we will review some of the current chatbots withtheir limitations and highlight some of the errors identified through survey analysis of different chatbots of some companies like Airtel, Vodafone and Jio etc. A survey is done to analyze the chatbots on various metrics.
Automatic modulation classification (AMC) is one of the important tasks in cognitive radios and spectrum surveillance. this paper proposes a deep learning (DL)-based AMC with prediction combination method for orthogon...
Automatic modulation classification (AMC) is one of the important tasks in cognitive radios and spectrum surveillance. this paper proposes a deep learning (DL)-based AMC with prediction combination method for orthogonal frequency division multiplexing (OFDM) systems. We first predict the subcarrier modulation scheme of the transmitted OFDM signal with different DL models and then combine those predictions using the proposed prediction combination method to make the final decision. through computer simulations, we show that the classification performance can be improved by the proposed prediction combination method in terms of classification accuracy.
It is very difficult for software testing to enumerate all possible situations. this method can't guarantee the correctness of the program, so strict mathematical formulas are needed to prove the correctness of th...
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Various control methods have been presented to prevent the occurrence of instability in power systems, among which, it seems that methods based on the special protection system (SPS) are more effective and efficient t...
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Various control methods have been presented to prevent the occurrence of instability in power systems, among which, it seems that methods based on the special protection system (SPS) are more effective and efficient than other ones. In this article, a SPS using the capabilities of large-scale photovoltaic power plants (LSPVPPs) is presented to prevent frequency increase and instability in power systems. According to the presented algorithm, when frequency increases, the proposed SPS uses the ability of photovoltaic power plants to quickly change their generation powers based on the operating point and frequency changes to prevent frequency instability. To confirm the proposal, LSPVPPs along withtheir controllers are modeled in the DSL environment of DIgSILENT PowerFactory software. the proposed SPS is implemented and tested on the ieee 39-bus test system and the results of dynamic simulations show that this SPS prevents frequency instability in different conditions by taking timely measures.
Recently, there has been a significant rise in research and development focused on deep learning (DL) models within healthcare. this trend arises from the availability of extensive medical imaging data and notable adv...
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Developing digital biomarkers requires handling unprecedented quantities of digital data generated from digital health technologies that utilize a combination of computing platforms, connectivity, software, and sensor...
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Developing digital biomarkers requires handling unprecedented quantities of digital data generated from digital health technologies that utilize a combination of computing platforms, connectivity, software, and sensors. these collected data need to be transformed and transported into a meaningful and useful format before further being derived into health indicators for understanding disease state and life quality. the unique challenges for this class of data engineering tasks are due to the complexity and volume of the digital data we are handling, the data quality and fidelity required to enable subsequent analysis, and the repeated cycles of trial and error to achieve the desired results. this paper presents a family of systems, pipelines, and methods we have designed and built to facilitate these tasks in a typical digital data engineering lifecycle in the context of digital biomarker development.
Given the substantial number of accidents because of human error, the development of automatic driver behavior monitoring systems has become a pressing need. By providing real-time monitoring and analysis of driving b...
Given the substantial number of accidents because of human error, the development of automatic driver behavior monitoring systems has become a pressing need. By providing real-time monitoring and analysis of driving behavior, these systems have the potential to decrease the incidence of accidents and improve overall road safety. this study presents a novel analysis framework for classifying driving behavior based on data gathered from passengers' smartphones. the data were collected using our mobile application installed on the smartphones and processed using machine learning algorithms. the study utilized several machine learning classification t echniques, w ith a focus on developing a Long Short Term Memory (LSTM) algorithm for improved accuracy. A Federated Learning algorithm was also developed to collect the data not into one area and train a global model to apply for labeling the driving behavior. the results show the efficacy of the proposed approach in accurately classifying driving behavior based on data obtained from smartphones.
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