The importance of emergency response system has grown significantly in recent times due to the frequent manmade and natural disasters such as September 2001 and Hurricane Sandy 2012. Disaster, manmade and natural, causes great economic and human losses each year throughout the world. Transportation and Telecommunication play a crucial role in disaster response and management. Our previous work ...

Transportation networks frequently employ hub-and-spoke network architectures to route flows between many origin and destination pairs. In this paper, we deal with a problem, called the single allocation hub-and-spoke network design problem. In the single allocation hub-andspoke network design problem, the goal is to allocate each non-hub node to exactly one of given hub nodes so as to minimize...

Vehicle to Everything (V2X) communication technology assesses the potential as new phenomenon for Intelligent Transportation Systems (ITS) in context of vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), and vehicle-to-network (V2N). Dedicated Short-Range Communications (DSRC) is conventional vehicular standard ITS. The cellular network based on 4G/5G ITS de...

In telecommunication and transportation systems, the uncapacitated multiple allocation hub location problem (UMAHLP) arises when we must flow commodities or information between several origin–destination pairs. Instead of establishing a direct node to node connection from an origin to its destination, the flows are concentrated with others at facilities called hubs. These flows are transported ...

in this paper, we develop a freight transportation model for railway network considering hazmat transportation issue. in the transportation system considered, different customers can request for carrying hazmat and non- hazmat boxes. it is assumed that the sequence of the trains in the network is known. the objective is assigning the non-hazmat boxes and hazmat boxes to wagons of the trains so ...

Most metaheuristics contain a randomness component, which is usually based on uniform randomization –i.e., the use of the Uniform probability distribution to make random choices. However, the Multi-start biased Randomization of classical Heuristics with Adaptive local search framework (MIRHA, Gonzalez-Martin et al., 2014a; Juan et al. ,2014a) proposes the use of biased (non-uniform) randomizati...

Mobile phone data generated in mobile communication networks has the potential to improve current travel demand models and general, how we plan for better urban transportation systems. However, due its high-dimensionality, even if anonymised there still exists possibility re-identify users behind traces. This risk makes usage outside telecommunication network incompatible with recent privacy re...

Non-repudiation is a security service that provides cryptographic evidence to support the settlement of disputes. In this paper, we introduce the state-of-the-art of multi-party non-repudiation protocols, and analyze the previous work where one originator is able to send the same message to many recipients. We propose a new multi-party non-repudiation protocol for sending different messages to ...

Unsplittable flow problems cover a wide range of telecommunication and transportation their efficient resolution is key to number applications. In this work, we study algorithms that can scale up large graphs important numbers commodities. We present analyze in detail heuristic based on the linear relaxation problem randomized rounding. provide empirical evidence approach competitive with state...

The catastrophic COVID-19 outbreak wreaked devastation on people all around the world. Lockdown disrupted economic activity, and many went days without eating a complete square of food. Many migrant workers, especially those working for private sector businesses, were forced to abandon their employment or accept lower wages go compensation. Individuals savings depleted as result income decline ...