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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.

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48 results for detector subnetwork

A detector subnetwork improves deep learning robustness against adversarial perturbations.

problem Vulnerability of deep neural networks to adversarial perturbations that are imperceptible to humans.
method Augmenting deep neural networks with a binary classification detector subnetwork trained to distinguish adversarial from genuine data.
result Adversarial perturbations can be detected surprisingly well even though they are imperceptible to humans.

Extract class-specific subnetworks from neural models for better understanding and improved explanations.

problem Understanding and explaining the complex behavior of deep neural networks.
method For each semantic class, extract a class-specific subnetwork with a compressed structure that maintains comparable performance.
result Extracted subnetworks improve explanation saliency and adversarial example detection.

New findings show BERT subnetworks can train independently and transfer to various tasks.

problem Finding smaller subnetworks that can train independently and transfer to other tasks.
method Examined pre-trained BERT models for subnetworks that can train independently and transfer to various downstream tasks.
result Found subnetworks at 40% to 90% sparsity that can train independently and transfer to various tasks.

New method finds smaller, stable subnetworks that can train to full network accuracy.

problem Pruning neural networks at initialization to find subnetworks that can train to similar accuracy.
method Modified IMP to search for subnetworks that could have been obtained by pruning early in training, focusing on 0.1% to 7% through.
result Pruned subnetworks of deeper networks can complete training to match the accuracy of the original network on challenging tasks.

The study finds a theoretical bound for pre-training iterations needed for pruning to yield good subnetwork performance.

problem Discovering efficient subnetworks within pre-trained dense networks.
method Mathematical analysis of a two-layer, fully-connected network, validating with a multi-layer perceptron trained on MNIST.
result A logarithmically dependent threshold on dataset size for successful pruning.

Randomly initialized networks contain subnetworks that perform similarly to target networks.

problem Proving the lottery ticket hypothesis for neural networks.
method Pruning over-parameterized neural networks to find subnetworks.
result Randomly initialized networks contain subnetworks with similar performance to target networks without additional training.

Meta-ticket finds optimal sparse subnetworks for few-shot learning in randomly initialized neural networks.

problem Avoiding overfitting in few-shot learning for over-parameterized neural networks.
method Meta-learning approach to find optimal sparse subnetworks.
result Meta-ticket discovers sparse subnetworks that adapt to each task, achieving superior meta-generalization.

This letter improves sparse signal detection from one bit compressed sensing measurements.

problem Sparse signal detection from one bit compressed sensing measurements.
method Extended GLRT detector with optimal quantizer design and a double-detector scheme.
result The double-detector scheme outperforms existing methods in detection performance.

Graph networks improve particle reconstruction in irregular detectors.

problem Handling irregular particle-detector geometries in particle reconstruction.
method Introduce distance-weighted graph network architectures (GarNet, GravNet layers) for irregular geometry detectors.
result The proposed graph networks provide equally performing or less resource-demanding solutions compared to existing methods.

Deep neural network improves NILM with attention mechanism.

problem Energy disaggregation of individual appliance power demands from aggregate meter readings.
method Regression and classification subnetworks with attention mechanism.
result Proposed model outperforms state-of-the-art on REDD and UK-DALE datasets.

ATSDLN adapts to time series data for anomaly detection.

problem Challenges in selecting and optimizing anomaly detectors for time series data.
method Adaptive Time Series Detector Learning Network (ATSDLN) that selects and optimizes detectors and parameters.
result ATSDLN outperforms other methods in anomaly detection across various datasets.

Machine learning solves Einstein equations without symmetry assumptions.

problem Solving the Euclidean vacuum Einstein equations with a cosmological constant.
method Semi-supervised machine learning with patch-based architecture and coordinate consistency loss.
result Hints against the existence of Ricci-flat metrics on spheres in dimensions 4 and 5.

New method uses neural networks to estimate parameters without needing detector simulations.

problem Estimating parameters in high-energy physics with detector effects.
method Two-level fitting approach: SRGN (Simulation-level fit based on Reweighting Generator-level events with Neural networks).
result Demonstrated using simulated datasets, SRGN can estimate parameters without detector effects.

TomOpt optimizes muon detector designs using differentiable programming.

problem Designing efficient particle detectors for muon tomography.
method Differentiable programming for muon interaction modeling, inference, and optimisation.
result Demonstrated end-to-end differentiable and inference-aware optimisation of particle physics instruments.

DCSO dynamically selects top-performing base detectors for outlier ensembles.

problem Challenges in selecting and combining outlier scores from different detectors.
method DCSO dynamically selects top-performing base detectors based on local k-nearest neighbors.
result DCSO provides consistent performance improvement over static combination approaches.

Improves relevancy of black-box anomaly detectors with user feedback.

problem Users often ignore many detected anomalies, requiring a method to identify and prioritize relevant ones.
method Uses user feedback to adjust anomaly selection process based on identified anomaly types.
result Significant improvements in precision and recall over various anomaly detectors.

This research uncovers high-performing subnetworks in deep GNNs without training.

problem Challenges in applying SLTH to deeper GNNs with high memory requirements.
method Introduces Multicoated Supermasks (M-Sup) and Multi-Stage Folding for GNNs.
result Uncovered untrained recurrent networks with performance similar to trained models.

Framework predicts clinical severity from rs-fMRI data using network optimization.

problem Predicting clinical severity from rs-fMRI data.
method Joint network optimization framework combining sparse subnetworks and linear regression.
result Framework outperforms standard methods and identifies clinically relevant ASD networks.

Novel unsupervised MIG detectors improve signal detection in cluttered environments.

problem Signal detection in nonhomogeneous clutter environments.
method Developed novel discriminative MIG detectors using HPD matrices and geometric measures.
result Improved signal detection performance compared to conventional methods.

A simple method for learning activation functions in neural networks.

problem Determining the best activation function for neural networks is challenging.
method Adding local subnetworks with a small amount of neurons to the neural network.
result The proposed method leads to better results compared to using a pre-defined activation function.

A new framework selects best outlier detectors locally for improved ensemble performance.

problem Challenges in combining outlier detectors without ground truth.
method Locally Selective Combination in Parallel Outlier Ensembles (LSCP) framework.
result LSCP_AOM variant consistently outperforms other methods on real-world datasets.

Deep learning reduces complexity for MIMO DF relay channel detection.

problem Efficient signal detection in MIMO DF relay channels with varying channels.
method Deep learning-based detection networks (NMLDNs) for signal detection in changing channels.
result Deep learning reduces detection complexity without sacrificing performance.

We discuss two views on extending existing methods for complex network modeling which we dub the communities first and the networks first view, respectively. Inspired by the networks first view that we attribute to White, Boorman, and Breiger (1976)[1], we formulate the multiple-networks stochastic blockmodel (MNSBM), …

2014-11-28abs ↗pdf ↗