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Suggested Topics within your search.
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17001
Deepfake detection method based on patch-wise lighting inconsistency
Published 2023-02-01“…The rapid development and widespread dissemination of deepfake techniques has caused increased concern.The malicious application of deepfake techniques also poses a potential threat to the society.Therefore, how to detect deepfake content has become a popular research topic.Most of the previous deepfake detection algorithms focused on capturing subtle forgery traces at pixel level and have achieved some results.However, most of the deepfake algorithms ignore the lighting information before and after generation, resulting in some lighting inconsistency between the original face and the forged face, which provided the possibility of using lighting inconsistency to detect deepfake.A corresponding algorithm was designed from two perspectives: introducing lighting inconsistency information and designing a network structure module for a specific task.For the introduction of lighting task, a new network structure was derived by designing the corresponding channel fusion method to provide more lighting inconsistency information to the network feature extraction layer.In order to ensure the portability of the network structure, the process of feature channel fusion was placed before the network extraction information, so that the proposed method can be fully planted to common deepfake detection networks.For the design of the network structure, a deepfake detection method was proposed for lighting inconsistency based on patch-similarity from two perspectives: network structure and loss function design.For the network structure, based on the characteristic of inconsistency between the forged image tampering region and the background region, the extracted features were chunked in the network feature layer and the feature layer similarity matrix was obtained by comparing the patch-wise cosine similarity to make the network focus more on the lighting inconsistency.On this basis, based on the feature layer similarity matching scheme, an independent ground truth and loss function was designed for this task in a targeted manner by comparing the input image with the untampered image of this image for patch-wise authenticity.It is demonstrated experimentally that the accuracy of the proposed method is significantly improved for deepfake detection compared with the baseline method.…”
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17002
Design and Improvement of Routing Protocol for Field Observation Instrument Networking Based on LEACH Protocol
Published 2020-01-01“…The results showed that the improved algorithm FOI-LEACH balances the network energy consumption and alleviates the “hot spot” problem, to extend the lifetime of network nodes.…”
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17003
Improvement of crack tip position estimation in DIC images by image processing methods
Published 2022-12-01“…However, the second procedure involves a developed algorithm detecting the discontinuity using digital image correlation (DIC) measurement. …”
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17004
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17005
Predicting hydrocarbon reservoir quality in deepwater sedimentary systems using sequential deep learning techniques
Published 2025-07-01“…Three sequential deep learning models—Recurrent Neural Network and Gated Recurrent Unit—were developed and optimized using the Adam algorithm. The Adam-LSTM model outperformed the others, achieving a Root Mean Square Error of 0.009 and a correlation coefficient (R2) of 0.9995, indicating excellent predictive performance. …”
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17006
An Improved UNet-Based Path Recognition Method in Low-Light Environments
Published 2024-11-01“…Compared to the FCN and SegNet algorithms, this method provides higher detection accuracy and offers a new theoretical foundation and research approach for path recognition in low-light environments.…”
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17007
Visual information perception system of coal mine comprehensive excavation working face for edge computing terminal
Published 2024-10-01“…Secondly, the pruning and distillation algorithm is used to lighten the FSBD‐YOLOv5s model, and the model complexity is greatly reduced while maintaining the model detection accuracy. …”
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17008
Analysis of Solar Radiation Shielding in Space for Climate Mitigations of the Earth
Published 2025-04-01“…The effectiveness of space solar shielding is evaluated using a complex algorithm that considers various parameters of the shielding satellite, such as its size, orbit, and deployment mechanism. …”
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17009
The canyon of Haidamatskyi Iar in the village of Busha: Geotourism assessment
Published 2025-09-01“…For each algorithm, we presented results as a percentage of the maximum for easier comparison. …”
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17010
Thermal, solutal, and radiative oscillatory behavior in vibrating inclined chambers with Non-Darcy porous media
Published 2025-09-01“…Vibrational double diffusion has emerged as a captivating topic in modern research due to its crucial role in improving mixing, disrupting thermal boundary layers, and stabilizing convection structures, particularly in nanofluids and porous media. …”
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17011
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17012
The Evaluation of LSB Steganography on Image File Using 3DES and MD5 Key
Published 2024-03-01“…The research methodology involves implementing 3DES + LSB using Image Citra and innovating 3DES + MD5 Hash in .txt files. …”
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17013
Advanced Text Summarization Model Incorporating NLP Techniques and Feature-Based Scoring
Published 2025-01-01“…It thus suggests that the approach is applicable in real-life situations and deserves further research.…”
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17014
On the Combination of Harmonics and Polynoms in Econometric Modeling of RUB/AZN Exchange Rate
Published 2022-11-01“…Conducting a combinational polynomial and spectral analysis of time series formed on the basis of daily observations of changes in the RUB/AZN exchange rate with pronounced fluctuations for the period 11.05.2017- 02.11.2018 based on computer econometric modeling.The purpose of the research. The possibility of describing the global rate dynamics by approximation with a combination of a nonlinear polynomial trend and harmonic oscillations of various frequencies relative to this curve; the ability to calculate amplitudes and phases, which can be used to estimate the power spectrum of the Fourier approximation; the ability to develop a high-precision algorithm for predicting exchange rate changes in RUB/AZN.Materials and methodology. …”
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17015
Identification and application of shale lithofacies based on conventional logging curves: A case study of the second member of Funing Formation in Qintong Sag, Subei Basin
Published 2024-10-01“…Additionally, a BP neural network method optimized by the ASO(Atom Search Optimization) algorithm was utilized to perform data mining on logging information. …”
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17016
Enhancing Tire Condition Monitoring through Weightless Neural Networks Using MEMS-Based Vibration Signals
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17017
Optimizing relay node selection in cooperative wireless body area networks with modified POA
Published 2024-12-01“…In the realm of Wireless Body Area Networks (WBANs), cooperative communications emerge as a crucial research focus, lauded for their capacity to mitigate fading and optimize spectral efficiency. …”
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17018
Cough Expired Volume and Cough Peak Flow Rate Estimation Based on GA-BP Method
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17019
ISCCO: a deep learning feature extraction-based strategy framework for dynamic minimization of supply chain transportation cost losses
Published 2024-12-01“…Additionally, ISCCO optimized goods allocation using a genetic algorithm enhanced integer linear programming model. …”
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17020
Machine tool FEM model correction assisted by dynamic evolution sequence
Published 2025-05-01“…Abstract In the simulation analysis of large-scale industrial instruments such as machine tools, in order to ensure simulation accuracy, model parameter correction is necessary. This research presents a machine tool model correction method assisted by the dynamic evolution sequence (DES). …”
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