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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.

169,051 papers · 148 categories

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3.1%6.1%9.2%12.2% · Jul 201919922001200920182026
48 results for experimental reporting

The paper argues for better experimental reporting to avoid misinterpretation of model performance.

problem Misinterpretation of model performance due to insufficient experimental reporting.
method Presenting expected validation performance as a function of computation budget.
result Authors can reach different conclusions based on the amount of computation used.

In recent years, significant progress has been made in solving challenging problems across various domains using deep reinforcement learning (RL). Reproducing existing work and accurately judging the improvements offered by novel methods is vital to sustaining this progress. Unfortunately, reproducing results for state…

2017-09-19abs ↗pdf ↗

We introduce a Bayesian solution for the problem in forensic speaker recognition, where there may be very little background material for estimating score calibration parameters. We work within the Bayesian paradigm of evidence reporting and develop a principled probabilistic treatment of the problem, which results in a…

2014-03-24abs ↗pdf ↗

Study improves risk evaluation timing with right-censored reporting delays.

problem Improving risk evaluation under short observation windows due to administrative censoring.
method Jointly models parametric hazards for event and reporting processes, uses Monte Carlo expectation-maximization algorithm, and proposes transfer-learning procedure.
result Improves accuracy of timely risk evaluation under administrative censoring.

CLARA generates clinical reports from raw inputs, improving accuracy and efficiency.

problem Generating accurate and detailed clinical reports from raw inputs is time-consuming and error-prone.
method Interactive method that generates reports sentence by sentence based on doctors' anchor words and partially completed sentences.
result CLARA achieves significant improvements in report generation accuracy and efficiency.

Framework integrates financial and annual report data for better corporate credit ratings.

problem Lack of insights from non-financial data in credit rating models.
method Uses FinBERT to extract features from annual reports and combines them with financial data.
result Improves credit rating accuracy by 8-12%.

The report analyzes Legendre decomposition for tensor data.

problem Finding effective lower dimensional representations of tensors.
method Theoretical analysis of dual parameters and dually flat manifold properties, followed by experimental verification and clustering.
result Parameters on submanifold cannot be directly used as low-rank representations.

COBRA addresses strategic behavior in online platforms by ensuring truthful reporting without monetary incentives.

problem Ensuring truthful reporting from strategic agents in online platforms.
method Proposes COBRA, an algorithm for contextual bandits involving strategic agents that disincentivizes strategic behavior.
result COBRA achieves sub-linear regret guarantee and incentive compatibility without monetary incentives.

Paper improves privacy-preserving measurement of advertising incrementality.

problem Privacy degradation in randomized lift tests for advertising measurement.
method Formulates a robust causal decision problem under signal losses, projecting clean worlds onto incrementality.
result Sharp decision frontier shows valid certification or rejection outside the frontier.

The paper explores clustering methods using Bregman divergences.

problem Developing efficient clustering algorithms for complex data.
method Investigates fixed rate quantization and Voronoi diagrams in Riemannian metric spaces induced by separable Bregman divergences.
result Experimental results show improved performance of clustering algorithms using these metrics.

Improved AI model predicts construction safety outcomes from incident reports.

problem Predicting safety outcomes from incident reports using AI.
method Extracted attributes from incident reports using NLP, trained machine learning models (XGBoost, linear SVM), used model stacking, analyzed per-category attribute importance.
result Attributes are highly predictive of safety outcomes, injury severity is well predicted.

This paper proposes and evaluates the k-greedy equivalence search algorithm (KES) for learning Bayesian networks (BNs) from complete data. The main characteristic of KES is that it allows a trade-off between greediness and randomness, thus exploring different good local optima. When greediness is set at maximum, KES co…

2012-10-19abs ↗pdf ↗

A new method reduces computational cost for gene expression inference in large microarray data sets.

problem Efficiently predicting gene expression in large datasets with limited resources.
method Adaptive Lipschitz constant inspired learning rate, random sub-sampling, and A-ReLU activation function.
result Remarkable improvement in saving computational cost while maintaining prediction accuracy.

This paper analyzes financial sentiment using LLMs and FinBERT, improving accuracy with few-shot examples.

problem Financial sentiment analysis for market evaluation.
method Application of large language models and FinBERT, with focus on prompt engineering and few-shot learning.
result GPT-4o achieves similar sentiment classification accuracy to FinBERT with fewer examples.

We give a construction of hyperbolic 3-manifolds with rank two fundamental groups and report an experimental search to find such manifolds. Our manifolds are all surface bundles over the circle with genus two surface fiber. For the manifolds so obtained, we then examine whether they are of Heegaard genus two or not. As…

2010-12-24abs ↗pdf ↗

Study predicts factuality and bias of news media sources.

problem Characterizing the factuality and bias of news media sources.
method Used a large list of news websites and features from articles, Wikipedia pages, Twitter accounts, URL structure, and web traffic.
result Significant performance gains over baselines, confirming the importance of various features.

This project compares MCMC and VI for Bayesian PMF on MovieLens.

problem Intractable posterior distribution in PMF.
method Employed MCMC and VI for Bayesian inference on MovieLens.
result VI converges faster, MCMC provides more accurate estimates.

Paper optimizes fiber optic communication constellations using machine learning.

problem Improving fiber optic communication performance through better constellation shaping.
method An unsupervised learning approach embedding a fiber channel model into neural networks.
result Improved performance up to 0.13 bit/4D in simulation and experimentally up to 0.12 bit/4D.

Directed acyclic graphs (DAGs) are a popular framework to express multivariate probability distributions. Acyclic directed mixed graphs (ADMGs) are generalizations of DAGs that can succinctly capture much richer sets of conditional independencies, and are especially useful in modeling the effects of latent variables im…

2010-08-31abs ↗pdf ↗

L-Perceptron improves breast cancer diagnosis and survival prediction.

problem Improving early prognosis and survival prediction rates for breast cancer.
method Proposes a novel type of perceptron (L-Perceptron) for better accuracy and sensitivity.
result Achieves 97.42% and 98.73% accuracy and sensitivity in Wisconsin Breast Cancer dataset.

Extracts patterns from mobile network data for better resource management.

problem Improving network efficiency and resource allocation for mobile users.
method Spatiotemporal analysis of internet activity records (IARs) data.
result Developed a mobile traffic partitioning scheme.

Interpretable semi-supervised classifier for black-box models with two self-labeling strategies.

problem Lack of labeled data and difficulty in explaining black-box models.
method Combines black-box and white-box approaches for self-labeling and prediction.
result Superior prediction rates and interpretability compared to state-of-the-art classifiers.

liquidSVM is a package written in C++ that provides SVM-type solvers for various classification and regression tasks. Because of a fully integrated hyper-parameter selection, very carefully implemented solvers, multi-threading and GPU support, and several built-in data decomposition strategies it provides unprecedented…

2017-02-22abs ↗pdf ↗

Researchers measure distances between quantum states to speed up machine learning.

problem Calculating distances between quantum states for machine learning is complex.
method Three-step method using many-particle interference to measure Hilbert-Schmidt distance.
result The method reduces complexity in calculating Euclidean distances between quantum states.

Collaborative filtering is a rapidly advancing research area. Every year several new techniques are proposed and yet it is not clear which of the techniques work best and under what conditions. In this paper we conduct a study comparing several collaborative filtering techniques -- both classic and recent state-of-the-…

2012-05-14abs ↗pdf ↗

This article provides a thorough meta-analysis of the anomaly detection problem. To accomplish this we first identify approaches to benchmarking anomaly detection algorithms across the literature and produce a large corpus of anomaly detection benchmarks that vary in their construction across several dimensions we deem…

2015-03-03abs ↗pdf ↗

The paper benchmarks OS with RCTs, accounting for right-censoring.

problem Benchmarking observational studies with experimental data under censoring.
method Two cases: independent and dependent censoring. Censoring-doubly-robust signal for CATE.
result Effectiveness of censoring-aware tests verified via experiments and real data.

In this paper, the task-related fMRI problem is treated in its matrix factorization formulation, focused on the Dictionary Learning (DL) approach. The new method allows the incorporation of a priori knowledge associated both with the experimental design as well as with available brain Atlases. Moreover, the proposed me…

2018-02-05abs ↗pdf ↗

We address feature interpretation and reproducibility issues in dense nets, proposing a modified loss function.

problem Feature interpretation and reproducibility issues in dense nets.
method Proposed a modified loss function to circumvent basis collapse.
result Substantially concise nets with 100x fewer parameters and lower MSE loss.

We explore a recently proposed Variational Dropout technique that provided an elegant Bayesian interpretation to Gaussian Dropout. We extend Variational Dropout to the case when dropout rates are unbounded, propose a way to reduce the variance of the gradient estimator and report first experimental results with individ…

2017-01-19abs ↗pdf ↗

In this paper, we examine previous work on the naive Bayesian classifier and review its limitations, which include a sensitivity to correlated features. We respond to this problem by embedding the naive Bayesian induction scheme within an algorithm that c arries out a greedy search through the space of features. We hyp…

2013-02-27abs ↗pdf ↗

This paper improves domain adaptation methods using graph embedding.

problem Alleviating distribution gaps between different data domains.
method Formulate domain adaptation as graph embedding, analyze loss functions, propose rectified evaluation protocol.
result Improved benchmarks on standard datasets demonstrate the effectiveness of the proposed methods.

Study classifies pathology reports using TF-IDF features and machine learning.

problem Classifying pathology reports for cancer surveillance and diagnostic workflow.
method Extracted TF-IDF features from pathology reports and classified them using SVM, XGBoost, and Logistic Regression.
result XGBoost achieved 92% accuracy in classifying pathology reports.

This study uses NLP to predict stock performance based on analyst reports.

problem Predicting stock performance using textual information from analyst reports.
method Natural language processing (NLP) and a customized BERT deep learning model for Chinese text.
result Strong positive sentiment in analyst reports increases excess return and intraday volatility, while strong negative sentiment increases volatility and trading volume but decreases excess return.

Deep learning model improves corporate distress prediction using text data.

problem Predicting corporate distress using only financial data is insufficient.
method Convolutional recurrent neural network trained on auditors' and managers' reports.
result Unstructured textual data significantly enhances distress prediction, especially for large firms.

A new deep generative model uses BSDEs for high-dimensional data generation.

problem Generating high-dimensional complex data, especially images.
method Combines BSDEs with deep neural networks for training with MMD loss.
result BSDE-Gen effectively generates high-dimensional data with stochasticity.

Echo State Networks (ESN) are a class of Recurrent Neural Networks (RNN) that has gained substantial popularity due to their effectiveness, ease of use and potential for compact hardware implementation. An ESN contains the three network layers input, reservoir and readout where the reservoir is the truly recurrent netw…

2018-07-25abs ↗pdf ↗