Research
On-device research index

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.

169,341 papers · 148 categories

Trend · papers per month

2.3%4.6%6.9%9.2% · Apr 201919922001200920182026
48 results for visual signals

Proposes Population Difference Criterion for visually observed subpopulation differences.

problem Statistical significance of visually observed subpopulation differences in high-dimensional and high-signal contexts.
method Balanced permutation approach and bootstrap confidence interval for quantifying uncertainty.
result Balanced permutation approach is more powerful in high-signal contexts.

Self-supervised learning of visual semantics in image games.

problem Learning visual semantics in referential emergent language games.
method Investigating the impact of feature extractor weights and tasks on visual semantics, using various image augmentations and additional tasks.
result Communication systems can learn visual semantics in a self-supervised manner by playing the right types of games.

The present contribution suggests the use of a multidimensional scaling (MDS) algorithm as a visualization tool for manifold-valued elements. A visualization tool of this kind is useful in signal processing and machine learning whenever learning/adaptation algorithms insist on high-dimensional parameter manifolds.

2010-04-02abs ↗pdf ↗

The paper introduces a multi-scale model to speed up sparse approximation problems for visual signals.

problem Efficiently solving sparse approximation problems with large dictionaries.
method Incorporates multi-scale structure onto dictionary-based sparse representations.
result Significant speedups (10-60x) with little loss in accuracy for images, videos, and light fields.

Compact-CNN outperforms traditional methods in SSVEP classification.

problem Decoding SSVEPs without domain-specific knowledge.
method Compact convolutional neural network (Compact-CNN) for automatic feature extraction.
result Across subject mean accuracy of 80% (chance 8.3%) using Compact-CNN.

Deep learning classifies sleep stages from EEG signals, aiding professionals.

problem Manual scoring of sleep stages from EEG signals is tedious and requires trained professionals.
method Multitaper spectral analysis and deep convolutional neural networks for automatic classification.
result System accurately classifies sleep stages in new patients, favorably compared to state-of-the-art.

A framework disentangles controllable objects from visual signals for improved RL.

problem Improving sample efficiency and game performance in vision-based RL.
method Action-conditioned video prediction to disentangle controllable objects.
result Improved sample efficiency and game performance in Atari games.

AVDCNN combines audio and visual data for better speech enhancement.

problem Improving speech quality by reducing noise in audio signals.
method Proposes an AVDCNN model that integrates audio and visual streams into a unified deep CNN network for end-to-end training.
result AVDCNN outperforms audio-only and conventional SE methods in enhancing speech quality.

Study finds humans outperform DNNs in object recognition under degraded images.

problem Comparing human and DNN object recognition robustness under image manipulations.
method Comparative analysis of human and DNN generalization abilities towards image degradations.
result Humans show greater robustness in object recognition under image manipulations compared to DNNs.

Understanding how images of objects and scenes behave in response to specific ego-motions is a crucial aspect of proper visual development, yet existing visual learning methods are conspicuously disconnected from the physical source of their images. We propose to exploit proprioceptive motor signals to provide unsuperv…

2015-05-08abs ↗pdf ↗

Coherent Multiplex analyzes real-time wavelet coherence among multiple signals.

problem Identifying and visualizing coherence among multiple time series.
method Fast spectral similarity based on cosine similarity metrics of Fourier-transformed signals and sparse time-frequency wavelet coherence.
result Scalable real-time system for low-latency inference and monitoring of inter-signal relationships.

Deep neural networks decode natural visual scenes from neural spikes.

problem Decoding visual scenes from neural spikes for brain-machine interfaces.
method Developed a novel spike-image decoder (SID) using deep neural networks.
result SID reconstructs natural visual scenes from neural spikes with high accuracy.

Deep CNNs improve technical forecasting accuracy.

problem Improving financial forecasting accuracy using machine learning.
method Reframed technical analysis as feature-extractive layer in CNNs, optimizing over different resolutions.
result Ensemble of shallow, thresholded CNNs outperforms technical methods.

SuNCEt accelerates contrastive learning with minimal labeled data.

problem Efficiently learning visual representations with limited labeled data.
method Noise-contrastive estimation and neighbourhood component analysis-based semi-supervised loss.
result SuNCEt achieves semi-supervised learning accuracy with less than half the labeled data.

Approach detects illegal insider trading proactively from diverse data sources.

problem Detecting illegal insider trading in the stock market.
method Deep-learning and discrete signal processing on time series data, combined with tree-based visualization.
result Approach has a good success rate in detecting illegal insider trading patterns.

Polarimetric Synthetic Aperture Radar (PolSAR) images are establishing as an important source of information in remote sensing applications. The most complete format this type of imaging produces consists of complex-valued Hermitian matrices in every image coordinate and, as such, their visualization is challenging. Th…

2012-07-03abs ↗pdf ↗

Improved image reconstruction from sparse measurements using generative models.

problem Signal recovery from limited compressed measurements.
method Generative model with constrained latent variables for stable signal reconstruction.
result Improved reconstruction accuracy and preservation of realistic features.

Paper proposes RMFN for multimodal language analysis.

problem Modeling interactions between language, visual, and acoustic modalities.
method Recurrent Multistage Fusion Network (RMFN) decomposes fusion into stages focusing on subsets of multimodal signals.
result RMFN achieves state-of-the-art performance across multimodal sentiment analysis, emotion recognition, and speaker traits recognition datasets.

Deep learning predicts nuclear equation of state from rotating core collapse GW signals.

problem Classifying the nuclear equation of state from rotating core collapse gravitational wave signals.
method Employed deep convolutional neural networks to classify visual and temporal patterns in GW signals.
result Up to 97% correct classifications of nuclear equation of state in the test set.

Perceptual ad-blocking is vulnerable to attacks, creating new security risks.

problem Vulnerability of perceptual ad-blocking to attacks and new security risks.
method Analysis and creation of adversarial examples to bypass perceptual ad-blocking.
result Perceptual ad-blocking can be bypassed using adversarial examples, introducing new security risks.

Humans outperform DNNs on image degradations, especially when signals weaken.

problem Comparing human and DNN robustness in object recognition under various image manipulations.
method Comparison of robustness between humans and DNNs (ResNet-152, VGG-19, GoogLeNet) on object recognition under 12 types of image degradations.
result Humans consistently outperform DNNs on object recognition, especially under weaker signals.

This report concerns the problem of dimensionality reduction through information geometric methods on statistical manifolds. While there has been considerable work recently presented regarding dimensionality reduction for the purposes of learning tasks such as classification, clustering, and visualization, these method…

2008-09-29abs ↗pdf ↗

Study evaluates self-supervised representations in interactive environments.

problem Unclear which self-supervised methods best capture meaningful features of diverse environments.
method Quantitative evaluation of representations in two visual environments: Flappy Bird and Sonic The Hedgehog.
result Representations' utility depends on the visuals and dynamics of the environment.

Applying convolutional neural networks to large images is computationally expensive because the amount of computation scales linearly with the number of image pixels. We present a novel recurrent neural network model that is capable of extracting information from an image or video by adaptively selecting a sequence of …

2014-06-24abs ↗pdf ↗

R package innsight interprets deep neural networks predictions.

problem Interpreting predictions of deep neural networks.
method Unified and user-friendly framework implementing feature attribution methods for neural networks, independent of deep learning library.
result Offers a variety of visualization tools for tabular, signal, image data or a combination.