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The design of robust supply and distribution systems is one of the fundamental challenges at the interface of network science and logistics. Given the multitude of performance criteria, real-world constraints, and external influences acting…

社会与信息网络 · 计算机科学 2021-12-07 Alexey Lyutov , Yilmaz Uygun , Marc-Thorsten Hütt

Advanced integration of logistics systems has been promoted for the sake of competitiveness and sustainability. Such efforts will enable more globally optimal and flexible operations by efficiently utilizing transportation capacity. At the…

物理与社会 · 物理学 2022-03-29 Takahiro Ezaki , Naoto Imura , Katsuhiro Nishinari

In today's global economy, supply chain (SC) entities have become increasingly interconnected with demand and supply relationships due to the need for strategic outsourcing. Such interdependence among firms not only increases efficiency but…

物理与社会 · 物理学 2020-11-16 Qihui Yang , Caterina Scoglio , Don Gruenbacher

The right performance of a supply chain depends on the pattern of relationships among firms. Although there is not a general consensus among researchers yet, many studies point that scale-free topologies, where few highly related firms are…

社会与信息网络 · 计算机科学 2016-12-01 Juan M. Hernández , Carmen Pedroza

Money flow models are essential tools to understand different economical phenomena, like saving propensities and wealth distributions. In spite of their importance, most of them are based on synthetic transaction networks with simple…

综合金融 · 定量金融 2016-08-03 Massimiliano Zanin , David Papo , Miguel Romance , Regino Criado , Santiago Moral

We propose and analyze a graph model to study the connectivity of interdependent networks. Two interdependent networks of arbitrary topologies are modeled as two graphs, where every node in one graph is supported by supply nodes in the…

离散数学 · 计算机科学 2018-09-10 Jianan Zhang , Eytan Modiano

Resource allocation for cloud services is a complex task due to the diversity of the services and the dynamic workloads. One way to address this is by overprovisioning which results in high cost due to the unutilized resources. A much more…

数据结构与算法 · 计算机科学 2015-03-10 Galia Shabtai , Danny Raz , Yuval Shavitt

We study the disequilibrium dynamics of a stylised model of production networks in which firms use perishable and non-substitutable intermediate inputs, so that adverse idiosyncratic productivity shocks can trigger downstream shortages and…

物理与社会 · 物理学 2026-02-02 David Martin , José Moran , Debabrata Panja , Jean-Philippe Bouchaud

We develop a model where firms determine the price at which they sell their differentiable goods, the volume that they produce, and the inputs (types and amounts) that they purchase from other firms. A steady-state production network…

多智能体系统 · 计算机科学 2025-04-23 Tuong Manh Vu , Ernesto Carrella , Robert Axtell , Omar A. Guerrero

We revisit the classic Cournot model and extend it to a two-echelon supply chain with an upstream supplier who operates under demand uncertainty and multiple downstream retailers who compete over quantity. The supplier's belief about retail…

计算机科学与博弈论 · 计算机科学 2021-07-19 Constandina Koki , Stefanos Leonardos , Costis Melolidakis

Proceeding from the concept of rational expectations, a new dynamic model of supply and demand in a single market with one supplier, one buyer, and one kind of commodity is developed. Unlike the cob-web dynamic theories with adaptive…

综合物理 · 物理学 2007-05-23 V. Granik , A. Granik

Link failures repeatedly induce large-scale outages in power grids and other supply networks. Yet, it is still not well understood, which links are particularly prone to inducing such outages. Here we analyze how the nature and location of…

物理与社会 · 物理学 2016-04-06 Dirk Witthaut , Martin Rohden , Xiaozhu Zhang , Sarah Hallerberg , Marc Timme

We develop a topology data analysis-based method to detect early signs for critical transitions in financial data. From the time-series of multiple stock prices, we build time-dependent correlation networks, which exhibit topological…

数理金融 · 定量金融 2017-01-24 Marian Gidea

Various social, financial, biological and technological systems can be modeled by interdependent networks. It has been assumed that in order to remain functional, nodes in one network must receive the support from nodes belonging to…

物理与社会 · 物理学 2017-12-01 M. A. Di Muro , L. D. Valdez , H. H. A. Rêgo , S. V. Buldyrev , H. E. Stanley , L. A. Braunstein

Network architecture design is very important for the optimization of industrial networks. The type of network architecture can be divided into small-scale network and large-scale network according to its scale. Graph theory is an efficient…

社会与信息网络 · 计算机科学 2022-09-20 Chao Dong , Xiaoxiong Xiong , Qiulin Xue , Zhengzhen Zhang , Kai Niu , Ping Zhang

A financial system contains many elements networked by their relationships. Extensive works show that topological structure of the network stores rich information on evolutionary behaviors of the system such as early warning signals of…

统计金融 · 定量金融 2018-05-09 Li Zhou , Lu Qiu , Changgui Gu , Huijie Yang

We study a supply chain consisting of production-inventory systems at several locations which are coupled by a common supplier. Demand of customers arrives at each production system according to a Poisson process and is lost if the local…

概率论 · 数学 2023-03-21 Sonja Otten

The ability to design a transport network such that commodities are brought from suppliers to consumers in a steady, optimal, and stable way is of great importance for nowadays distribution systems. In this Letter, by using the circuit laws…

物理与社会 · 物理学 2015-06-17 Nicolás Rubido , Celso Grebogi , Murilo S. Baptista

Successful supply chain optimization must mitigate imbalances between supply and demand over time. While accurate demand prediction is essential for supply planning, it alone does not suffice. The key to successful supply planning for…

人工智能 · 计算机科学 2024-04-12 Hyung-il Ahn , Young Chol Song , Santiago Olivar , Hershel Mehta , Naveen Tewari

Demand functions for goods are generally cyclical in nature with characteristics such as trend or stochasticity. Most existing demand forecasting techniques in literature are designed to manage and forecast this type of demand functions.…

应用统计 · 统计学 2011-10-04 Murphy Choy , Michelle L. F. Cheong
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