1,720,974 research outputs found
Increasing the efficiency in Intermodal Transportation Systems by implementing innovative ICT solutions. Case study of cargo’s interactions with authorities and infrastructure operators
No full textUsing Information and Communication Technologies in Intermodal Freight Transportation: A case study
No full textThe paper focuses on the application of Information and Communication Technology (ICT) tools to the real-time transport monitoring in order to trace and automate specific procedures as payments and customs clearance operations. In particular, a case study, that represents an example of intermodal freight transportation (IFT) system, is analyzed and simulated. The flow of goods and information involved in this case study is described in order to highlight the improvements reached by using ICT solutions. A simulation model for this system is proposed by the UML formalism and the discrete event simulation results point out the huge impact of ICT on real-time management and operations of IFT systems
Analysis of Impact of ICT Solutions in International Freight Management
Full text linkThe paper analyses a crucial problem in the international freight management and assesses the application of an innovative solution based on Information and Communication Technology (ICT) tools. In order to improve the customs clearance procedures, the paper analyses the main anomalies and bottlenecks related to international freight management of a case study by modelling the customs clearance activities in the Unified Modelling Language framework. Moreover, some novel ICT based solutions are proposed in order to optimize suited performance indices. The flow of goods and information involved in the case study is simulated in different scenarios in order to highlight the improvements reached by using ICT solutions. The simulation results point out the huge impact of ICT on customs clearance operations
A model based decision support system for logistics management
No full textThis paper deals with the specification of a Decision Support System (DSS) that has to manage the flow of goods and the business transactions between a port and a dry port. The paper investigates the case of the broader area of Trieste port and specifies the DSS that manages the import flows of freights between dry port and seaport. An integrated approach is designed for the tactical level decision strategy based on simulation optimization, where metaheuristic algorithms are applied
Harmony search augmented with optimal computing budget allocation capabilities for noisy optimization
No full textIn this work we introduce the combinatory use of Harmony Search (HS) with Optimal Computing Budget Allocation (OCBA) as a means to tackle noisy optimization situations as those that occur during the execution of Discrete Event Systems (DES) for modeling complex systems. The OCBA procedure is employed for the exclusion of the worst harmony during the memory updating process in order to minimize the computational cost and at the same time retain a pool of promising solutions. The proposed hybrid approach is tested on real valued test functions as a proof of concept and the results are promising in case of small computational budgets
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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