The 2025 2nd International Conference on Signal Processing and Neural Network Applications (SPNNA 2025) will beheld from September 26-28, 2025, in Xiamen, China. All accepted papers will be published in SPIE-The International Society for Optical Engineering (ISSN: 0277-786X), and submitted to EI Compendex, Scopus for indexing.

The topics of interest for submission include, but are not limited to:

-Signal Processing
· High dimensional signal processing
· Adaptive filtering and adaptive signal processing
· Time-frequency analysis and signal processing
· Biomedical signal processing
· Communication signal processing
· Underwater acoustic signal processing
· Speech signal processing
· Image and video signal processing
· Radar signal processing
· Data compression and signal coding
· Multisensor data fusion
· Nonlinear signal processing
· Application of machine learning in signal processing
· Signal denoising and enhancement
· Blind signal processing
· Distributed signal processing
· Sensor signal processing technology
· Signal Processing and Optical Imaging
· Laser Technology and Signal Processing

-Neural Network Applications
· Deep learning algorithm and its application
· Application of Convolutional Neural Network ( CNN ) in Image Processing
· Recurrent neural network ( RNN ) and its application in sequence data
· Autoencoder and generation model
· The application of neural network in natural language processing ( NLP )
· Application of Neural Network in Medical Image Analysis
· Application of neural network in bioinformatics
· Application of Neural Network in Intelligent Transportation System
· Application of neural network in robot control
· Application of Neural Network in Recommendation System
· Application of neural network in anomaly detection and early warning  
· Federated learning and distributed neural networks
· Hardware acceleration of neural networks
· Application of Neural Network in Internet of Things ( IoT )
· Application of neural network in edge computing
· Neural Networks and Photonics

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