Results 71 to 80 of about 3,514 (223)
Analysis of an M/{Dn}/1 retrial queue [PDF]
, 2007 We consider a single server retrial queueing system in which each customer (primary or retrial customer) has discrete service times taking on value Dj with probability pj,j=1,2,…, and ∑j=1∞pj=1.
Wu, Xiaoyong, Ke, Xiaowu
core +1 more source
Mixed loss and delay retrial queueing system with two classes of customers
Statistica, 2007 This paper is concerned with the analysis of a single-server batch arrival retrial queue with two classes of customers. In the case of blocking, the class-1 customers leave the system forever whereas the class-2 customers leave the service area and enter
B. Krishna Kumar, S. Pavai Madheswari
doaj +1 more source
Progressively Projected Newton's Method
Computer Graphics Forum, EarlyView.Abstract Newton's Method is widely used to find the solution of complex non‐linear simulation problems. To guarantee a descent direction, it is common practice to clamp the negative eigenvalues of each element Hessian prior to assembly—a strategy known as Projected Newton (PN)—but this perturbation often hinders convergence.
J. A. Fernández‐Fernández +2 more
wiley +1 more source
Analysis of retrial queue with heterogeneous servers and Markovian arrival process
Informatika, 2020 Multi-server retrial queueing system with heterogeneous servers is analyzed. Requests arrive to the system according to the Markovian arrival process. Arriving primary requests and requests retrying from orbit occupy an available server with the highest ...
Mei Liu
doaj +1 more source
Strictly Conservative Neural Distance Fields
Computer Graphics Forum, EarlyView.Abstract We propose a first method to generate neural unsigned or signed distance fields (SDFs) that are guaranteed to be conservative with respect to a given 3D shape. This means the true distance is never overestimated and the zero‐level set is a bounding volume for the shape. The method makes use of neural network architectures that ensure Lipschitz
I. Ludwig, M. Campen
wiley +1 more source
International Journal of Training and Development, EarlyView.ABSTRACT This study examines domain‐level knowledge calibration in pharmaceutical training. Miscalibration can undermine safety in regulated environments by reducing information seeking and procedural checking. Employees completed an adaptive Good Manufacturing Practice e‐learning course in a multinational pharmaceutical organization.
Lasse Nielsen Langendorf +1 more
wiley +1 more source
IEEE Access, 2019 In a cognitive radio (CR) system, excessive access services for secondary users (SUs) lead to a substantial increase in congestion and the retrial phenomenon, both of which degrade the performance of CR networks, especially in overload conditions.
Yu Zhang, Jinting Wang, Wei Wayne Li
doaj +1 more source
Transplant Infectious Disease, EarlyView.In a retrospective cohort study of 149 patients receiving atovaquone for PJP prophylaxis, increased usage was related to broader indications, uptake in new patient groups, difficulty tolerating or accessing alternatives, and longer durations used per patient.
To N. Pham +5 more
wiley +1 more source
Expert Systems, Volume 43, Issue 10, October 2026.ABSTRACT While Large Language Models (LLMs) have demonstrated remarkable capabilities in code generation, their effectiveness in unit testing is often constrained by insufficient context regarding external dependencies. This limitation is particularly pronounced in industrial settings, where proprietary code remains opaque to the model. To address this
Javier Ferrer, Francisco Chicano
wiley +1 more source
Vacation and Polling Models with Retrials
, 2014 We study a vacation-type queueing model, and a single-server multi-queue polling model, with the special feature of retrials. Just before the server arrives at a station there is some deterministic glue period. Customers (both new arrivals and retrials) arriving at the station during this glue period will be served during the visit of the server ...
Boxma, O.J., Resing, J.A.C.
openaire +2 more sources