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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.

169,291 papers · 148 categories

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90179269358 · Jun 202019922001200920182026
48 results for architecture comparison

This paper compares Grid Search, Random Search, and Genetic Algorithm for NAS.

problem Hyperparameter optimization for neural architecture search.
method Comparison of Grid Search, Random Search, and Genetic Algorithm.
result Genetic Algorithm outperforms Grid Search and Random Search in terms of accuracy and execution time.

Proposes GANs using Capsule Networks for faster image synthesis.

problem Faster image synthesis with fewer training samples and epochs.
method Capsule Networks for image synthesis using GAN architectures.
result Learn data manifold faster and synthesize visually accurate images.

A study compares deep learning architectures for autonomous vehicles.

problem Challenges in developing self-driving systems due to lack of systematic comparison of deep learning architectures.
method Controlled comparison of seven deep learning architectures on an indoor racetrack, varying conditions and data types.
result AlexNet and VGG-16 performed best, with AlexNet achieving 100% success rate.

TristouNet improves speaker comparison using neural networks and triplet loss.

problem Speaker comparison and change detection in short speech turns.
method Triplet loss for training neural network to project speech sequences into fixed-dimensional space.
result Significant improvements over state-of-the-art techniques for speaker comparison and change detection.

Study compares nine deep learning architectures for multi-horizon financial forecasting.

problem Evaluating the performance of deep learning architectures for multi-horizon financial forecasting.
method Conducted 918 experiments across cryptocurrency, forex, and equity markets using nine architectures.
result ModernTCN achieves the best mean rank (1.333) with a 75 percent first-place rate.

This study analyzes NAS benchmarks and finds that only a subset of operations is crucial for generating high-performing architectures.

problem NAS benchmarks lack generability and provide skewed performance distributions, leading to unreliable comparisons.
method Empirical analysis of widely used NAS benchmarks (101, 201, TransNAS-Bench-101) focusing on operation importance and generability.
result Only a subset of operations is necessary to generate architectures close to the upper-bound performance range, and convolution layers have the highest impact.

Training logs can improve model comparison precision, but careful covariate selection is key.

problem Improving precision in comparing stochastically trained models.
method Use arm-specific covariate adjustment, where each model is adjusted with statistics from its own runs.
result Simple adjustments based on early training logs often reduce uncertainty in model comparisons.

Transformers use a unique Hessian structure that differs from classical networks, affecting optimization.

problem Understanding the unique optimization landscape of Transformers.
method Theoretical Hessian analysis of a single self-attention layer in Transformers.
result Transformers have a highly non-linear Hessian structure, distinguishing them from classical networks.

Study on deep neural networks for reward modeling with pairwise comparison data.

problem Reward modeling with deep neural networks in non-parametric settings.
method Established a non-asymptotic regret bound for deep reward estimators, introduced a margin-type condition.
result Improved regret bound for deep reward estimators, highlighting the importance of clear human beliefs.

Flexible model predicts sports outcomes over time.

problem Predicting sports outcomes with varying player/team skill over time.
method Probabilistic model using continuous-time Gaussian processes for dynamic parameters, efficient inference algorithm.
result Model outperforms competing approaches in predictive performance and scalability.

Meta-learning approach improves CNN architectures for concrete defect classification.

problem Challenging task of recognizing defects in concrete infrastructure.
method Two reinforcement learning based meta-learning approaches (MetaQNN and NAS) for finding suitable CNN architectures.
result Learned architectures have fewer parameters and better multi-target accuracy.

Automatically designs CNN architectures for medical image segmentation.

problem Manual design of deep network architectures is time-consuming and resource-intensive.
method Policy gradient reinforcement learning with dice index reward function.
result Efficacy demonstrated with low computational cost compared to state-of-the-art networks.

Efficient search methods can outperform random search on challenging tasks.

problem Comparing the performance of efficient and random search methods in neural architecture search.
method Comparison of weight sharing and random search methods on progressively larger search spaces for image classification and detection.
result Efficient search methods can provide substantial gains over random search on large, realistic tasks.

New findings show modern neural networks have finite sample complexity in o-minimal structures.

problem Understanding the learnability of modern neural networks in a broad context.
method Analyzing feedforward neural networks definable in o-minimal structures.
result Modern neural networks, including MLPs, CNNs, GNNs, and transformers, have finite sample complexity in the agnostic PAC setting.

IENs reduce neural network variance without increasing complexity.

problem Reducing variance in neural networks without increasing model complexity.
method IENs use ensemble parameters during training to reduce variance, removing them during testing.
result IENs reduce network variance by a factor of 1/mL11/m^{L-1}, leading to significant error rate decreases.

This study evaluates different normalizing flow architectures for MCMC.

problem Lack of systematic comparison of normalizing flow architectures in MCMC.
method Extensive evaluation of various normalizing flow architectures on different MCMC methods and target distributions.
result Contractive residual flows are the best general-purpose models for MCMC.

The paper introduces capacity allocation analysis for neural networks, focusing on spatial capacity.

problem Designing neural network architectures is challenging due to the interplay of intuition, experimentation, and luck.
method Introduces capacity allocation analysis, focusing on spatial capacity allocation in linear settings.
result Quantitative comparison of classical architectures on various synthetic tasks reveals insights into model capacity allocation.

NAS for financial time series forecasts using chain-structured architectures.

problem Optimizing neural architectures for financial time series forecasting.
method Comparison of three NAS strategies (Bayesian optimization, hyperband, reinforcement learning) on chain-structured search spaces for simple and complex architectures.
result Bayesian optimization and hyperband outperform other strategies, and RNN and 1D CNN perform best among architectures.

Foundation models improve on econometric benchmarks for forecasting volatility, but vary widely across models.

problem Comparing pretrained time series foundation models to econometric benchmarks for volatility forecasting.
method Systematic comparison of nine zero-shot TSFMs against eight econometric specifications on 50 assets across 3 markets and 3 horizons.
result Tiny Time Mixers (TTM) is the only model that consistently beats the Log-HAR benchmark, but performance varies widely across models.

Study compares shallow and deep learning for MS lesion segmentation.

problem Automated segmentation of white matter lesions in early-stage MS patients.
method Training and testing shallow and deep learning architectures on 32 patients.
result Combining shallow and deep architectures improves lesion-wise metrics.

Generative deep models struggle with anomaly detection.

problem Comparing deep generative models to classical methods for anomaly detection.
method Statistical comparison of generative models on various datasets, varying hyperparameters.
result Deep generative models perform poorly when hyperparameters are selected with fewer anomalous samples.

The study compares different neural network architectures for option pricing accuracy and training time.

problem Evaluating the impact of network architectures on option pricing accuracy and training time.
method Empirical investigation of various neural network architectures (plain feed forward, highway, DGM) on option pricing problems.
result Generalized highway network architecture achieves the best performance in terms of mean squared error and training time.

Study evaluates quantum and classical conditional Boltzmann machines for time-series forecasting.

problem Time-series forecasting using quantum and classical conditional Boltzmann machines.
method Developed and compared four conditional energy-based forecasting architectures: Gaussian-Bernoulli CRBM, QCRBM, QQRBM, and QFeatureQRBM. Evaluated using symmetric hyperparameter optimisation.
result No systematic evidence of a quantum advantage in time-series forecasting at the available sample size.

MT-CNN outperforms other methods in toxicity prediction.

problem Comparing toxicity prediction methods using a common set of descriptors.
method Constructed a common set of microscopic descriptors based on physical models, evaluated MT-CNN and other methods on four toxicity data sets.
result MT-CNN outperforms state-of-the-art methods in toxicity prediction.

Study compares hypergraph and graph-level models for higher-order relational learning.

problem Evaluating effectiveness of hypergraph-level vs. graph-level models in relational learning.
method Systematic evaluation of various hypergraph and graph-level architectures.
result Graph-level models applied to hypergraph expansions outperform hypergraph-level models.

Study compares deep learning and superlearner architectures for classification problems.

problem Assessing performance and computational efficiency of different machine-learning methods.
method Comparative analysis of superlearner and deep learning architectures across various datasets.
result Superlearner outperforms deep neural networks on nonlinear predictor relationship datasets, suggesting faster convergence and interpretability.

CNNs improve signal-background classification in particle physics experiments.

problem Improving accuracy in classifying signal from background in particle physics experiments.
method Extensive convolutional neural architecture search for 2D and 3D image data.
result Achieved high accuracy for signal/background discrimination with CNNs, less parameters than ResNet.

This research compares masked diffusion models to autoregressive language models, focusing on architectural differences.

problem Comparing masked diffusion models to autoregressive language models due to architectural differences.
method Equitably compare MDMs within a decoder-only framework, investigating architectural influences.
result Decoder-only MDMs can achieve significant speedups and comparable perplexity with temperature annealing.

DeepRAM evaluates and selects the best deep learning architecture for DNA/RNA binding specificity prediction.

problem Selecting the best deep learning architecture for predicting DNA/RNA binding specificity.
method Systematic exploration of various deep learning architectures using deepRAM, an end-to-end deep learning tool.
result A k-mer embedding convolutional layer and recurrent layer architecture outperforms other methods.

Translationally equivariant neural networks improve performance and generalization in physics problems.

problem Performance and generalization issues in machine learning applied to physics problems.
method Investigation of translationally equivariant convolutional neural networks for complex scalar field theory on a 2D lattice.
result Translationally equivariant neural networks significantly outperform non-equivariant architectures in various regression and classification tasks.

Equivariant neural networks improve performance and generalization in complex scalar field theory tasks.

problem Improving performance and generalization in neural networks for complex scalar field theory tasks.
method Incorporating translational equivariance into neural network architectures.
result Equivariant neural networks significantly outperform non-equivariant networks in various tasks, including those beyond the training set and across different lattice sizes.