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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,181 papers · 148 categories

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48 results for semantic channels

CM algorithm matches Shannon's and semantic channels for multi-label classification.

problem Tackles label learning and selection for multi-label classification.
method Adheres to maximum semantic information criterion, uses Bayes' theorem, and trains truth functions.
result Shows improved performance and adaptability to changing source distributions.

New Bayes' theorem optimizes semantic channels for machine learning.

problem Class imbalance and semantic meaning evolution in natural language.
method Convert Shannon's channel to semantic channel using third kind of Bayes' theorem.
result CM algorithm explains natural language evolution and improves predictive models.

CM algorithm improves MMI classifications for unseen instances.

problem Improving classification accuracy for unseen instances using MMI criterion.
method Introduces CM algorithm for MMI classifications, combining semantic and Shannon channels for matching.
result Achieves high mutual information (99%) with minimal iterations in low-dimensional feature spaces.

New approach uses SPG for semantic communication without a known channel model.

problem Designing efficient semantic communication systems without a known channel model.
method Applying Stochastic Policy Gradient (SPG) for reinforcement learning.
result Achieves comparable performance to model-aware approaches with a decreased convergence rate.

Deep learning models improve traffic image segmentation accuracy but vary by city and channel.

problem Improving semantic segmentation accuracy for traffic analysis.
method Evaluation of PSPNet and ICNet on Cityscapes and custom urban images.
result Different models have varying accuracy and inference time for different cities and channels.

Auto-Compressing Subset Pruning reduces model size for faster inference.

problem High parameter counts and slow inference times in semantic segmentation models.
method Learning a channel selection mechanism based on temperature annealing schedule.
result Significant compression of segmentation models with acceptable inference performance.

This paper bounds min-entropy leakage for Blowfish privacy using graph symmetries.

problem Bounding min-entropy leakage for Blowfish privacy mechanisms.
method Organizing analysis over symmetrical partitions corresponding to orbits of graph automorphism groups.
result Demonstrates a construction meeting the bound with asymptotic equality, showing tightness.

Proposes MSFCN and RFCN for video semantic segmentation improving accuracy by 9-15%.

problem Lack of temporal information in semantic segmentation algorithms for videos.
method Integrates motion cues and temporal consistency using recurrent and multi-stream FCN architectures.
result MSFCN-3 achieves significant accuracy improvements in various datasets.

MPPN network improves long-term time series forecasting accuracy.

problem Inaccurate long-term time series forecasting due to noise and lack of interpretability.
method MPPN network constructs context-aware multi-resolution semantic units and employs multi-periodic pattern mining and channel adaptive module.
result MPPN significantly outperforms state-of-the-art methods on nine real-world benchmarks.

Improved road segmentation on low-res LIDAR data for autonomous vehicles.

problem Low-resolution LIDAR data affects road segmentation accuracy in autonomous vehicles.
method Subsampled LIDAR data transformation into feature maps, use local normal vector with spherical coordinates.
result Improves road segmentation accuracy on low-resolution LIDAR data.

A new channel locality block improves CNN performance.

problem Improving the performance of convolutional neural networks.
method Proposed a variant of Squeeze-and-Excitation block using convolutional layers to learn nearby channel correlation.
result Our C-Local block achieved higher accuracy than the standard SE block on the cifar-10 dataset.

Reduced-channel EEG systems struggle with artifact detection, highlighting the importance of referential channels.

problem Artifact detection in EEG signals with fewer channels.
method Investigated a deep learning algorithm, CNN-LSTM, on various channel configurations.
result False alarms increase dramatically when fewer channels are used, emphasizing the importance of referential channels.

Proposes dynamic channel pruning during neural network training.

problem Pruning neural networks during training to reduce computational cost and improve efficiency.
method Dynamic channel propagation to update channel utility values and selectively prune channels.
result Our scheme trains and prunes neural networks simultaneously, achieving superior performance.

A new DVAE architecture improves channel estimation by incorporating temporal correlations.

problem Improving the estimation of time-varying channels.
method Introducing k-MemoryMarkovVAE (k-MMVAE) architecture to learn temporal correlations.
result The k-MMVAE aided channel estimator outperforms other ML aided estimators.

Generative diffusion models improve channel sampling from limited data.

problem Challenges in channel modelling and data collection for wireless systems.
method Diffusion model with U-Net architecture for frequency domain synthesis.
result Stable training and diverse high-fidelity samples generated from true channel distribution.

New method uses VAEs for blind channel equalization and decoding.

problem Blind channel equalization and decoding without pilot symbols.
method Variational autoencoders (VAEs) for blind channel equalization and decoding.
result Significant improvement in error rate compared to existing methods.

BestChanID identifies the channel with maximal capacity using training sequences.

problem Identifying the channel with maximal capacity among several discrete memoryless channels.
method Formulated as a multi-armed bandit problem, proposed a capacity estimator, and developed gap-elimination algorithms.
result Guaranteed to output the DMC with the largest capacity with a desired confidence.

Quantum models simulate classical channels more efficiently, improving transmission rates.

problem Optimizing quantum models to simulate classical channels more efficiently.
method Examining when and how well quantum simulations of classical channels improve upon classical simulations.
result Quantum simulations can improve upon classical simulation rates.

A privacy-preserving method for transmitting data over a wiretap channel using generative networks.

problem Privacy protection in communication over a wiretap channel.
method Data-driven approach using variational autoencoder (VAE)-based joint source channel coding (JSCC).
result The approach provides high reconstruction quality at the receiver while confusing the eavesdropper about the latent sensitive attribute.

New adaptive SGD algorithms for federated learning over physical channels.

problem Reducing communication cost in federated learning over physical channels.
method Proposed adaptive federated SGD algorithms considering channel noise and hardware constraints.
result Demonstrated convergence rates adaptive to stochastic gradient noise level.

DKN uses knowledge graphs to improve news recommendation.

problem Limited personalized news recommendations due to lack of external knowledge.
method Integrates knowledge graph representation into news recommendation using a deep knowledge-aware network (DKN).
result DKN achieves substantial gains over state-of-the-art models in click-through rate prediction.

Paper tackles accurate channel modeling using variational GANs.

problem Accurately learning channel probability distribution functions (PDFs).
method Variational GAN architecture and loss function for stochastic channel modeling.
result Accurately captures stochastic channel behavior with improved PDFs.

New ML models improve VVLC channel characterization for vehicular OWC.

problem Inaccurate channel models for VVLC due to mobility effects.
method Machine learning (ML) models incorporating ambient light, turbulence, and reflection effects.
result ML models predict VVLC channel loss and CFR more accurately than existing methods.

Channel normalization prevents vanishing gradients in convolutional neural networks.

problem Vanishing gradients in convolutional neural networks during optimization.
method Channel normalization, which centers and normalizes each channel individually.
result Channel normalization avoids vanishing gradients, enabling efficient optimization.

Paper proposes online learning for MIMO channel estimation using neural networks.

problem Challenges in MIMO channel estimation due to physical model simplifications and system configuration requirements.
method Unfold a channel estimation algorithm as a neural network, allowing online learning and correction of imperfect models.
result Achieves channel estimation error close to that of a perfectly calibrated system.

ICE algorithm removes noisy channel assumption for universal discrete denoising.

problem Universal discrete denoising under channel uncertainty.
method Iterative channel estimation based on Neural DUDE, alternating channel estimation and neural network parameter estimation.
result ICE-N-DUDE achieves superior performance regardless of channel and clean source uncertainties.

Novel channel pruning method accelerates deep CNNs by removing redundant, similar features.

problem Limitations of existing magnitude-based pruning algorithms in similar magnitude cases.
method Hierarchical clustering of channels based on probabilistic similarity metrics, without sparsity training.
result 30% reduction in FLOPs for pruned ResNet-50 on ImageNet, outperforming baseline.

Deep learning improves channel estimation in communication systems.

problem Improving channel estimation accuracy in communication systems.
method Proposed a deep learning pipeline using image processing techniques to estimate channel response.
result The proposed algorithm shows comparable performance to MMSE with full channel knowledge and better than ALMMSE.

MGLM models all possible language channel factorizations for improved multilingual generation.

problem Generating multilingual text with flexibility and quality.
method Generative joint distribution model over language channels, marginalizing all possible factorizations.
result MGLM outperforms traditional models in multilingual generation tasks.

Drone optimizes collaborative learning for neural networks.

problem Training a shared neural network with heterogeneous data from multiple devices.
method Drone collects and aggregates model parameters from devices, optimizing trajectory for best accuracy.
result Significant improvement in final accuracy and speedup in training time.

Proposes GPCA module for channel attention in CNNs using Gaussian processes.

problem Improving performance in visual tasks through effective channel selection.
method Integrates Gaussian processes into channel attention mechanisms for probabilistic modeling of channel correlations.
result Demonstrates improved performance of GPCA module in end-to-end CNN training.

SOR-Mamba improves Mamba for robust time series forecasting by minimizing channel order bias.

problem Robust time series forecasting with Mamba's sequential order bias.
method SOR-Mamba incorporates regularization to minimize channel order discrepancy and introduces CCM for channel correlation preservation.
result SOR-Mamba enhances robustness to channel order and improves forecasting accuracy.

ReQuestNet simplifies 5G channel estimation with a unified model.

problem Complex channel estimation in 5G systems with varying conditions.
method Unified neural architecture that handles dynamic resource blocks and transmit layers.
result Significantly outperforms legacy methods, achieving up to 10dB gain at high SNRs.