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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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14294357 · Jun 202019922001200920182026
48 results for supply planning

Unified framework explains retirement and annuitization decisions under age-dependent mortality.

problem Complexity of annuitization decisions due to longevity risk and labor force participation.
method Stochastic control and optimal stopping framework with habit formation and endogenous labor supply.
result Rich sequence of retirement dynamics, including defensive and aggressive labor supply phases.

This paper uses robust optimization to analyze supply chain resilience.

problem Supply chain resilience analysis of multi-modal logistics networks.
method Robust optimization with budget-of-uncertainty.
result Interactive effects of network size, disruption scale, and degree on resilience.

GNNs improve supply chain analytics with real-world benchmarks.

problem Limited research on applying GNNs to supply chain management.
method Conceptual discussions, detailed formulations, examples, mathematical definitions, and task guidelines.
result GNN-based models outperform other methods by 10-40% in various supply chain tasks.

A new approach integrates inventory prediction and routing optimization for better supply chain management.

problem Optimizing efficient route selection in supply chain management with uncertain inventory demand.
method Decision-focused learning approach using neural networks to directly integrate inventory prediction and routing optimization.
result Direct integration of inventory prediction and routing optimization leads to better supply chain decisions.

Proposes a Big Data framework for SC forecasting, including data preprocessing and machine learning.

problem Improving SC forecasting accuracy and efficiency.
method Data collection, preprocessing, machine learning model training, hyperparameter tuning, performance evaluation.
result Optimized SC forecasting models enhance workforce, inventory, and overall SC performance.

Time series of counts arise in a variety of forecasting applications, for which traditional models are generally inappropriate. This paper introduces a hierarchical Bayesian formulation applicable to count time series that can easily account for explanatory variables and share statistical strength across groups of rela…

2014-05-15abs ↗pdf ↗

AI enhances refinery optimization by detecting data errors and improving decision-making.

problem Interpreting and applying LP solutions for refinery optimization is challenging due to simplifications and data errors.
method Transformed ECOD methodology, Anomaly Detection tools, and high-dimensional data analysis.
result Identifies data supply errors and reveals business opportunities in refinery scheduling and planning.

ElecSim models long-term electricity planning with agent-based Monte-Carlo simulations.

problem Transitioning to zero-carbon energy systems requires careful policy decisions.
method Agent-based Monte-Carlo model for long-term electricity investment decisions.
result Monte-Carlo simulation improves model performance by 52.5%.

Study proposes a hybrid method for medium-term load forecasting.

problem Accurate medium-term load forecasting for power system operation and planning.
method Support Vector Regression (SVR) combined with Symbiotic Organism Search Optimization (SOSO) for parameter optimization and feature selection.
result The proposed method outperformed previous methods in the EUNITE competition dataset.

Efficiently predicts optimal transport plans using sliced potentials.

problem Predicting optimal transport plans across multiple measure pairs efficiently.
method Regression-based and objective-based amortization strategies using sliced optimal transport potentials.
result Efficient and accurate prediction of optimal transport plans for various tasks.

Supply uncertainty leads to inefficient supply chain network formation.

problem How supply uncertainty affects supply chain network structure.
method Modeling a supply chain network with uncertain yield, where retailers and suppliers must form relationships and compete.
result Retailers tend to link to too few suppliers, leading to insufficient diversification of the supply base.

Develops price dynamics equations with symmetric supply/demand functions, affecting tail behavior of price distributions.

problem Understanding the tail behavior of price distributions based on supply and demand functions.
method Created price dynamics equations using a symmetric function of demand/supply, analyzing linear and nonlinear cases.
result The exponent of the tail behavior of price distributions depends on the function of supply and demand, with exponents approaching -1 for large exponents in the function.

Supply chain resilience depends on balancing competition and self-interest.

problem Maintaining resilience in decentralized supply chains under uncertainty and competition.
method Modeling competitive suppliers and retailers with yield uncertainty and congestion, analyzing network formation.
result Decentralized supply chains can form resilient networks through competition and self-interest, contrary to intuition.

Deep-Gap predicts crowdsourcing supply-demand gaps using deep learning.

problem Balancing supply and demand in mobile crowdsourcing.
method Residual learning-based deep neural networks trained on time series data and external factors.
result Deep-Gap achieves lowest forecasting errors compared to state-of-the-art methods.

Blockchain and AI improve invoice financing for supply chains.

problem Challenges in invoice financing for upstream suppliers in complex supply chains.
method Combining blockchain and AI technologies to solve financing issues.
result Atomic crosschain functionality enables informed decisions under uncertainty.

This paper applies reactor theory to supply chain management.

problem Maintaining optimal item delivery and collection ratios in supply chains.
method Translating neutron transport and diffusion theory to supply chain management, introducing analogy factors and interactors.
result A deterministic model for supply chain optimization.

This paper develops a stochastic learning-optimization model for resilient automotive supply chains.

problem Supply chain disruptions and volatile demand pose challenges to the UK automotive industry.
method Integrates Bayesian inference with inventory optimization for a two-echelon system subject to stochastic demand and disruptions.
result The integrated approach achieves significant cost reductions and improved resilience during disruptions.

Study reveals supply chain correlations in firm growth rates.

problem Understanding correlations in firm growth rates and their supply chain relationships.
method Investigated correlation structure of firm growth rates and used Gaussian Markov Models to reconstruct supply chain networks.
result Supply chain-linked firms exhibit stronger correlation in growth rates than non-linked firms.

Paper tackles learning win-win solutions in aggregation systems.

problem Learning approximate equilibrium solutions in aggregation systems to keep suppliers.
method Multi-Agent Reinforcement Learning (MARL) with variance reduction mechanism.
result Approach reduces value variance and moves joint solution closer to Nash Equilibrium.

Deep neural networks optimize inventory decisions in complex supply chains.

problem Optimizing inventory decisions in stochastic multi-echelon supply chains.
method Pairwise modeling and DNN agents for order-up-to levels.
result The method performs better than alternate methods in general supply chain networks.

Study examines how COVID-19 intensified demand variability in U.S. supply chains.

problem The amplification of demand variability (Bullwhip Effect) in supply chains during the pandemic.
method Extensive industry-level data analysis using traditional and advanced empirical techniques.
result COVID-19 significantly amplified the Bullwhip Effect across different U.S. industries.

Approach for assessing supply chain cyber risks using expert judgment and forecasting.

problem Supply chain managers face challenges in assessing cyber risks affecting business factors.
method Structured expert judgment and forecasting models to assess various attack techniques and impacts.
result Facilitates implementation of risk management activities and decision-making processes.

Improved taxi demand-supply forecasts using graph-based LSTM.

problem Accurate taxi demand-supply forecasting with complex spatial and temporal patterns.
method Investigated impact of spatial partitioning techniques (Voronoi vs. Geohash) on LSTM network performance.
result GraphLSTM offers competitive performance against ConvLSTM, at lower complexity, across real-world data sets.

Unified theory explains market impact using a simplified supply-demand parameter.

problem Understanding the market impact of metaorders and excess volatility.
method Coarse-grained approach with a single parameter ρ to model supply-demand equilibrium and market impact.
result Establishes a connection between excess volatility and order-driven markets through the square-root law.

We have studied here the self-organising features of the dynamics of a model market, where the agents `trade' for a single commodity with their money. The model market consists of fixed numbers of economic agents, money supply and commodity. We demonstrate that the model, apart from showing a self-organising behaviour,…

2000-12-21abs ↗pdf ↗

Framework improves resilience in operations through joint long-term and short-term decision-making.

problem Resilient operations in global markets require adaptive decision rules.
method Developed a two-timescale hierarchical reinforcement learning framework.
result Framework increases mean profit by 9.2% under joint demand-supply shocks and 11.8% under prolonged shocks.

Sornette et al. claimed that the optimal supply does not agree with the average demand, by analyzing a bakery model where a daily demand fluctuates with a uniform distribution. In this note, we extend the model to general probability distributions, and obtain the formula of the optimal supply for Gaussian distribution,…

2005-03-29abs ↗pdf ↗

Study compares tessellation strategies for taxi demand-supply forecasting models.

problem Improving taxi demand-supply forecasting using neural networks.
method Compared Voronoi tessellation and Geohash tessellation for LSTM models.
result Variable-sized polygon tessellation yields superior performance in LSTM models.

The relationship between price volatilty and a market extremum is examined using a fundamental economics model of supply and demand. By examining randomness through a microeconomic setting, we obtain the implications of randomness in the supply and demand, rather than assuming that price has randomness on an empirical …

2018-02-13abs ↗pdf ↗