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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.

169,181 papers · 148 categories

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48 results for Water contamination

Predicts lead contamination in Flint's water system based on home attributes.

problem Understanding and predicting lead contamination in Flint's water system.
method Data science approach using a large dataset of water tests and a crowd-sourced prediction challenge.
result Elevated lead risks can be weakly predicted from observable home attributes.

Paper proposes a technique to detect and predict sources of contaminants in complex systems.

problem Difficulty in identifying sources of contaminants in coupled natural and human systems.
method Developed a technique for simultaneous source detection and prediction.
result Outperforms other approaches in detecting potential groundwater contamination.

Neural networks compress and sample WDN contamination dynamics efficiently.

problem Infrastructure monitoring of complex, networked systems like water distribution networks is expensive and challenging.
method Developed Graph Fourier Transform (GFT) operators and neural networks (NN) for efficient data collection and inference.
result High accuracy reconstruction of contamination dynamics using only 5-10% of the sample set.

Model predicts climate-sensitive water and electricity use in Midwestern cities.

problem Ensuring conservation measures in growing cities under climate change.
method Statistical learning theory-based modeling framework for predicting climate-sensitive water-electricity demand nexus.
result Water use is slightly more sensitive to climate than electricity use.

Improved water balance model for large lakes using statistical methods.

problem Uncertainty and bias in independent input measurements for large lake hydrologic cycles.
method Developed a Bayesian statistical water balance model (L2SWBM) for Lakes Superior and Michigan-Huron.
result Demonstrated L2SWBM from 26 alternatives that adequately close the water balance of the lakes.

The study forecasts water quality from satellite data using machine learning.

problem Predicting future water quality from satellite data for coastal regions.
method Decomposed time series into components and used machine learning models (SARIMA, regression, neural network).
result Regression and neural network models are best at predicting Chl-a, SARIMA model best at FLH and SST.

Predict water pipe failures using machine learning and survival analysis.

problem Difficulty in accessing water pipes for maintenance.
method Classical and modern classifiers for short-term prediction, survival analysis for long-term forecast, and oversampling technique for imbalanced data.
result Identifies important risk factors for water pipe failures.

Enhances water disaggregation for parallel appliances using shape features and Bayesian Discriminative Sparse Coding.

problem Accurately discriminate and disaggregate water consumption patterns from parallel appliances.
method Bayesian Discriminative Sparse Coding (BDSC-LP) with Laplace Prior, shape features, Gibbs sampling.
result Extensive experiments validate the effectiveness of the proposed model.

The paper develops models to predict the remaining useful life of water pipes.

problem Predicting the remaining useful life of deteriorating water pipes.
method Artificial Neural Networks (ANNs) and Adaptive Neuro-fuzzy Inference System (ANFIS) applied to field data.
result Models accurately predict the reduction of remaining useful life due to pipe deterioration.

LightGBM outperforms other models in predicting pH values in Georgia, USA.

problem Accurate water quality prediction for effective resource management and pollution mitigation.
method Five distinct predictive models (linear regression, Random Forest, XGBoost, LightGBM, MLP neural network) were assessed for pH value forecasting in Georgia, USA.
result LightGBM achieved the highest average precision in predicting pH values.

Optimal design portfolios improve energy efficiency and reduce risk in uncertain reservoirs.

problem Uncertain reservoir conditions lead to unstable gas recovery and low resource efficiency.
method Developed optimal portfolios of well designs based on reservoir conditions and probabilities.
result Remarkable reduction in variation and substantial increase in energy efficiency achieved.

Paper tackles invariance of demodulation in shallow water acoustic communications.

problem Frequency-selective signal distortion (Doppler effect) in shallow water environments.
method Developed ML-based demodulation methods using DBN-NN and DBN-CNN.
result Demonstrated invariance of the proposed method to Doppler effect with 2dB error margin.

Machine learning predicts liquid water properties from cluster data.

problem Accuracy of bulk properties from machine-learned potentials is limited by training data.
method Local, atom-centred descriptors enable prediction of bulk properties from cluster data.
result Excellent agreement with experimental and theoretical counterparts of liquid water properties.

Neural network for water treatment anomaly detection with GA architecture optimization.

problem Detect anomalies in water treatment systems.
method Genetic algorithms for NN architecture optimization, NAB metric, F1-metric drawbacks analysis, techniques to improve AD quality.
result Improved anomaly detection quality through genetic algorithms and techniques.

Hölder-Bayes robustly infers model parameters and contamination levels.

problem Robustness to data contamination in Bayesian inference.
method Introduces Hölder-Bayes framework for joint inference of model parameters and contamination proportion using Hölder divergence.
result Hölder-Bayes framework provides robust parameter inference, contamination-level recovery, and uncertainty-aware outlier detection.

Study predicts coastal water quality using machine learning, identifying salinity as key factor.

problem Predicting and managing coastal water quality for public health and tourism.
method Machine learning models (Catboost, Xgboost, Random Forests, Support Vector Regression, Artificial Neural Networks) trained on environmental data.
result Catboost algorithm performed best, with R² values of 0.71 and 0.68 for E. Coli and enterococci predictions.

A contamination in a 3-manifold is an object interpolating between the contact structure and the lamination. Contaminations seem to provide a link between 3-dimensional contact geometry and the classical topology of 3-manifolds, as described in a separate paper. In this paper we deal with contaminations carried by bran…

2003-07-21abs ↗pdf ↗

Machine learning models estimate nutrient concentrations from water quality surrogates.

problem Estimating high frequency nutrient concentrations from limited in-situ measurements.
method Used machine learning (Random Forests) to estimate nutrient concentrations using surrogate measures.
result Reduced RMSE by up to 60.1% compared to linear models, with additional sensors not providing significant benefits.

A robust loss for anomaly mitigation and unsupervised contamination classification

problem Detecting and mitigating contamination in supervised and unsupervised settings
method Neural Bayesian Anomaly Mitigation (NBAM)
result Recovering the structure of contamination and identifying label-flip pairs

New model clusters water pollution networks without parametric distribution assumptions.

problem Assessing environmental threat from coal mining via sulfate pollution in river networks.
method Exponential-family random graph models and local likelihood estimation for nonparametric weighted network analysis.
result Proposes scalable method for large-scale environmental studies.

Study minimax robustness in statistical estimation under Wasserstein contamination.

problem Adversarial perturbations in statistical data.
method Developed minimax theory for qr\ell_q^r losses under Wasserstein-rr contaminations.
result Exact minimax risk identified for joint contaminations in location estimation and prediction in linear regression.

Study shows robust method for estimating density ratios even with heavy contamination.

problem Estimating density ratios in the presence of heavy contamination.
method Weighted density ratio estimation (DRE) with doubly strong robustness.
result Weighted DRE achieves sparse consistency under heavy contamination.

Generative models can still learn from contaminated data, but with limitations.

problem How much contamination can generative models tolerate?
method Characterized robustness under contaminated enumerations, proving generation is achievable for all countable collections if contamination fraction converges to zero.
result Generation under contamination is achievable for all countable collections if contamination fraction converges to zero, but dense generation is strictly less robust.

Deep learning designs effective preconditioners for water engineering problems.

problem Solving large linear systems in water engineering applications.
method Convolutional Neural Network (CNN) for designing preconditioning matrices.
result Learned preconditioners improve convergence rates beyond existing methods.

Hybrid model predicts flow and pressure in water systems.

problem Predicting flow and pressure in water distribution systems with complex spatial-temporal correlations.
method Hybrid dual-stage spatial-temporal attention-based recurrent neural networks (hDS-RNN).
result Our model outperformed 9 baseline models in flow and pressure series prediction.

Method reduces model bias in water temperature prediction using physics-guided GNNs.

problem Model bias in traditional physics-based models across different income and education levels.
method Physics-guided GNNs with refined neighbor selection and weights.
result Preserves equitable performance across different sensitive groups in the Delaware River Basin.

Optimal estimation of low-rank matrices from contaminated data.

problem Reconstructing a low-rank matrix from a contaminated version of itself.
method Developed an asymptotically optimal algorithm to estimate the original matrix from the singular values of the contaminated matrix.
result Found an explicit signal-to-noise cutoff below which estimation fails.

Combines machine learning and convex limiting for accurate subgrid flux modeling in shallow-water equations.

problem Accurate subgrid flux modeling in shallow-water equations.
method Machine learning and flux limiting for property-preserving subgrid scale modeling.
result The proposed method produces meaningful closures even in untrained scenarios.

New algorithm resists contamination in high-dimensional regression with optimal performance.

problem Adversarial and measurement errors in high-dimensional data.
method Adversarial Contamination-resistant Iterative Hard Thresholding (AC-IHT) algorithm.
result Achieves minimax near-optimal estimation and signal-adaptive support recovery.

Paper tackles contaminated bandits, identifying best true distribution with high probability.

problem Identifying the best true distribution in contaminated bandits.
method Developed tight sample complexity bounds for estimating robust moments from contaminated samples, adapting classical algorithms.
result Derived matching information-theoretic lower bounds for sample complexity.

Trimming helps in conformal prediction when it separates anomaly scores.

problem Effectiveness of trimming in conformal prediction under contamination.
method Analyse fixed-threshold trimming as a replacement of the contaminated calibration law with a retained law.
result Trimming helps when it separates anomaly scores, reducing clean-target coverage to a one-dimensional score-CDF transfer problem.