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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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48 results for preventive action

The paper examines how risk reduction and insurance choices interact under convex premium principles.

problem Interaction between self-protection and insurance demand under convex premium principles.
method Investigates optimal prevention efforts and insurance shares using distortion risk measures.
result Self-protection and insurance are complementary, but ex ante moral hazard can turn this into a substitution effect.

We provide direct evidence of market manipulation at the beginning of the financial crisis in November 2007. The type of manipulation, a "bear raid," would have been prevented by a regulation that was repealed by the Securities and Exchange Commission in July 2007. The regulation, the uptick rule, was designed to preve…

2011-12-14abs ↗pdf ↗

Framework insures AI actions with reserve capital, preventing loss.

problem Ensuring safety and accountability for AI actions with varying side effects.
method Developed Actuarial Action Interface (AAI) and Authority Frontier to price and gate AI actions.
result Found common refusal and release patterns across domains, with varying required reserve capital.

A novel score decouples shape deformations for better shape analysis.

problem High-dimensional deformations absorb lower-dimensional components, affecting statistical analysis.
method Introduces a coupling score using varifold representation of vector fields to quantify and decouple deformation modes.
result The coupling score effectively decouples distinct deformation modes during registration, improving shape analysis.

This paper discusses fairness in machine learning and its legal implications.

problem Discrimination in machine learning algorithms that unfairly treat certain groups.
method Explains moral philosophy, legislation, and strategies to detect and prevent discrimination.
result Discusses the need for fairness in machine learning and legal measures to enforce it.

Improved Q-learning for multi-agent reinforcement learning by weighting joint action values.

problem QMIX restricts QQ-values to monotonic mixtures, limiting complex value functions.
method Introduced weighted projection to recover optimal policies, improving performance.
result CW QMIX and OW QMIX outperform baseline QMIX on multi-agent tasks.

Q-Distribution Guided Q-Learning corrects overestimation of uncertain OOD actions in offline RL.

problem Overestimation of Q-values for out-of-distribution actions in offline reinforcement learning.
method QDQ applies a pessimistic adjustment to Q-values in uncertain OOD regions based on a consistency model.
result QDQ improves performance on the D4RL benchmark and achieves significant improvements across many tasks.

Randomized value functions offer a promising approach towards the challenge of efficient exploration in complex environments with high dimensional state and action spaces. Unlike traditional point estimate methods, randomized value functions maintain a posterior distribution over action-space values. This prevents the …

2018-06-06abs ↗pdf ↗

New method interprets neural agent's actions to prevent unwanted outcomes.

problem Blackbox issue in RL where agents learn without foreseeing all outcomes.
method Action-conditional β-VAE for disentangled representation learning.
result Interpretable latent features enable modeling entire state space.

SCQRNN prevents quantile crossing and improves computational efficiency.

problem Quantile crossing issue in regression models.
method Integrates ad hoc sorting in training to prevent quantile crossing and enhance computational efficiency.
result SCQRNN achieves faster convergence and non-intersecting quantiles.

The paper models commodity price dynamics influenced by producers and traders, preventing arbitrage and finding optimal derivative positions.

problem Preventing arbitrage opportunities in commodity option pricing influenced by producers and traders.
method Three continuous-time models of commodity price dynamics, semi-explicit solutions, closed-form expressions of derivative prices.
result Producers can compensate losses from increased volatility by strategically setting derivative prices.

Investors with asymmetric information play a game to optimize their portfolios.

problem Two investors with different information levels compete in portfolio selection.
method Modelled as a Stackelberg game with entropy-regularized mean-variance objectives.
result Equilibria exist where follower's strategy depends on leader's actions.

Solves label switching in mixture models using optimal transport.

problem Label switching in mixture model posterior inference prevents meaningful statistics assessment.
method Proposes an algorithm leveraging optimal transport to compute posterior statistics in a quotient space.
result Demonstrates advantages over alternative approaches on simulated and real data.

EBMs improve sample efficiency and generalization in RL.

problem Improving sample efficiency and generalization in reinforcement learning.
method Developed an online algorithm to train EBMs for model-based planning, leveraging their ability to infer intermediate states.
result EBMs lead to significantly better online learning and state space planning compared to feed-forward networks.

BCCNet combines biased crowd labels to train classifiers for disaster response.

problem Improper labels from citizen scientists limit machine learning applications.
method Bayesian classifier combination neural network (BCCNet) aggregates and trains classifiers from imperfect labels.
result BCCNet effectively processes large unstructured data for disaster prevention and response.

Band-limited SAC improves learning efficiency and stability in simulated environments.

problem Improving sample efficiency and stability in SAC algorithms.
method Artificially bandlimiting the target critic's spatial resolution using a convolutional filter.
result Bandlimited SAC outperforms classic twin-critic SAC in various Gym environments and is more stable.

Bayesian optimization gains efficiency by leveraging symmetries through a modified max kernel.

problem Improving Bayesian optimization efficiency for functions with group symmetries.
method Developed a PSD projection of the max kernel to exploit symmetries without violating kernel properties.
result The modified max kernel achieves lower regret compared to existing invariant and non-invariant kernels.

Many immunization strategies have been proposed to prevent infectious viruses from spreading through a network. In this study, we propose efficient immunization strategies to prevent a default contagion that might occur in a financial network. An essential difference from the previous studies on immunization strategy i…

2013-08-03abs ↗pdf ↗

MimosaNet prevents model stealing by making neural networks sensitive to weight changes.

problem Neural networks are vulnerable to model stealing due to robustness to minor parameter changes.
method Develops a method to create a sensitive version of a trained neural network.
result The sensitive network produces the same responses but is highly sensitive to weight changes, preventing model stealing.

New method combines regional HIV prevention trial data without sharing individual patient info.

problem Regional differences in HIV prevention efficacy, privacy concerns, and data sharing limitations.
method Federated learning approach that combines site-specific estimators via L1-regularization.
result Improved precision in estimating region-specific survival curves.

Modified model prevents volatility from approaching zero.

problem Volatility in the Gatheral model can approach zero, making it statistically indistinguishable.
method Proposed a modified model with Skorokhod reflection to prevent volatility from approaching zero.
result The modified model prevents volatility from approaching zero, preserving the model's flexibility.

This paper examines how skip connections prevent rank collapse in sequence models.

problem Rank collapse in sequence models, leading to reduced expressivity and training instabilities.
method Analytical and ablation studies of lambda-skip connections in SSMs.
result A sufficient condition to prevent rank collapse across various architectures.

The paper explores how sinks and diagonal patterns prevent attention oversmoothing.

problem Preventing attention oversmoothing in neural networks.
method Analyzing geometric conditions and conditions for dense vs. sparse attention, proving equivalence between sinks and hard attention switch, and comparing the costs of sinks vs. diagonal patterns.
result Sinks and diagonal patterns effectively prevent attention oversmoothing, and diagonal patterns provide a more flexible approach.

Game theory models incentivizes honesty in collaborative learning among competitors.

problem Incentivizing honest updates among competitors in collaborative learning schemes.
method Formulated a game to model interactions, studied two learning tasks, proposed mechanisms to incentivize honest communication.
result Rational clients are incentivized to manipulate their updates, preventing learning; proposed mechanisms ensure comparable learning quality to full cooperation.

USAC balances pessimism and optimism in actor-critic training for better exploration and performance.

problem Excessive pessimism limits exploration, while excessive optimism leads to high-risk behaviors.
method Utility Soft Actor-Critic (USAC) dynamically adapts exploration based on critic uncertainty.
result USAC consistently outperforms state-of-the-art algorithms in continuous control tasks.

Prevents sensitive data generation in diffusion models using labeled and unlabeled data.

problem Generating sensitive data in diffusion models using unlabeled data.
method Positive-Unlabeled Diffusion Models, approximating ELBO with labeled and unlabeled data.
result Prevents the generation of sensitive data without compromising image quality.

StratLearner learns strategies to prevent misinformation in social networks.

problem Learning strategies to protect against misinformation in social networks without knowing the diffusion model.
method Structured prediction framework using random features and large margin method.
result Our method produces near-optimal protectors without diffusion model information and outperforms other methods.