Results 51 to 60 of about 381 (184)
Міжнародний науково-технічний журнал "Проблеми керування та інформатики"The article discusses methodological approaches to the construction of multicom-modity hierarchical communication networks and identifies the main tasks of pro-cessing and distribution of discrete correspondence flows, which allow to create favorable ...
Володимир Олександрович Васянін +1 more
doaj +1 more source
Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.Regional rapid rail transit is an emerging rail transit system in China in recent years, with the same level of service frequency and longer station spacing as metro. The traditional fixed train composition mode has weak adaptability to its unbalanced transport demand in time and space, leading to high rolling stock traveling kilometers and operation ...
Guoxuan Tai +6 more
wiley +1 more source
SystemsEstimating origin-destination (OD) demand is integral to urban, regional, and national freight transportation planning and modeling systems. However, in developing countries, existing studies reveal significant inconsistencies between OD estimates for ...
Muhammad Safdar +3 more
doaj +1 more source
On complexity, representation and approximation of integral multicommodity flows
, 2000 The paper has two parts. In the algorithmic part integer inequality systems of packing types and their application to integral multicommodity flow problems are considered. We give 1−ε approximation algorithms using the randomized rounding/derandomization
Stangier, Peter +3 more
core +1 more source
Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.A literature review indicates that freight demand models (FDMs) covering a large region and multiple categories of commodities and transport modes based on an integrated modeling approach are rare. Compared with traditional models, such models have a much higher utility in decision‐making support for long‐term planning of regional transport and other ...
Guihua Deng +6 more
wiley +1 more source
Efficient Algorithm for the Nonadditive Traffic Assignment Problem With Link Capacity Constraints
Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.This paper presents an insightful examination of the modeling and efficient solution algorithm for the link capacitated nonadditive traffic assignment problem (CNaTAP) to provide highly accurate flow solutions for large‐scale networks. Despite the increasing significance of the CNaTAP, the ability to efficiently solve it for satisfactory accuracy in ...
Wangxin Hu +3 more
wiley +1 more source
Aggregation formulation for on‐site multidepot vehicle scheduling scenario
Computer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 20, Page 3030-3062, 15 October 2024.Abstract The multidepot vehicle scheduling problem (MDVSP) is a fundamental public transport challenge. To address the large‐scale model and inherent solution symmetry associated with the traditional trip‐to‐trip connection‐based approach for MDVSP, a new trip‐to‐route (T2R) connection‐based approach is proposed.
Yi Gao, Yuanjie Tang, Rengkui Liu
wiley +1 more source
Product Multicommodity Flow in Wireless Networks [PDF]
IEEE Transactions on Information Theory, 2008 Revised version of "Capacity-Delay Scaling in Arbitrary Wireless Networks" submitted to the IEEE Transactions on Information Theory. Part of this work appeared in the Allerton Conference on Communication, Control, and Computing, Monticello, IL, 2005, and the Internation Symposium on Information Theory (ISIT ...
Ritesh Madan +2 more
openaire +2 more sources
Energy Storage, Volume 6, Issue 6, September 2024.ABSTRACT Postharvest losses and spoilage of agricultural products are a major problem for tropical countries, and it is even more challenging for countries encountering fluctuating power shortages, such as Pakistan. Therefore, this study focused on the energy and economic analysis of cold storage to store three products (potatoes, pomegranates, and ...
Malik Shahzaib +3 more
wiley +1 more source
A bundle-type algorithm for routing in telecommunication data networks [PDF]
, 2009 Convex optimization, Routing, Multicommodity flows, Kleinrock delay function,
Lemaréchal, Claude +5 more
core +1 more source