Results 31 to 40 of about 9,762,794 (308)

Using Timeliness in Tracking Infections

Entropy, 2022
We consider real-time timely tracking of infection status (e.g., COVID-19) of individuals in a population. In this work, a health care provider wants to detect both infected people and people who have recovered from the disease as quickly as possible. In
Melih Bastopcu, Sennur Ulukus
doaj   +1 more source

Analysis of Age of Information Threshold Violations [PDF]

Proceedings of the 22nd International ACM Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, 2019
We study a scenario where a monitor is interested in the freshest possible update from a remote sensor. The monitor also seeks to minimize the number of updates that exceed a certain freshness threshold, beyond which, the information is deemed to be too old. Previous work has presented results for First Come First Served (FCFS) systems. However, it has
Franco, Antonio, Landfeldt, Björn, Körner, Ulf   +2 more
openaire   +2 more sources

On the Potential of Enhancing Delay-Tolerant Routing Protocols via Age of Information

Future Internet, 2022
In this paper, we study the potential of using the metric of Age of Information (AoI) for enhancing delay-tolerant routing protocols. The latter have been proposed for alleviating the impact of long roundtrip time in networks operating in harsh ...
Georgios Kallitsis, Vasileios Karyotis, Symeon Papavassiliou   +2 more
doaj   +1 more source

Correlated Age-of-Information Bandits [PDF]

2021 IEEE Wireless Communications and Networking Conference (WCNC), 2021
We consider a system composed of a sensor node tracking a time varying quantity. In every discretized time slot, the node attempts to send an update to a central monitoring station through one of K communication channels. We consider the setting where channel realizations are correlated across channels.
Juneja, Ishank, Fatale, Santosh, Moharir, Sharayu   +2 more
openaire   +2 more sources

On the Value of Information in Status Update Systems

Entropy, 2022
The age of information (AoI) is now well established as a metric that measures the freshness of information delivered to a receiver from a source that generates status updates.
Peng Zou, Suresh Subramaniam
doaj   +1 more source

Conversations with chemists: information seeking behavior of chemistry faculty in the electronic age. [PDF]

, 2002
This manuscript is a final draft of the article as submitted to the Haworth journal Science and Technology Libraries in December 2002. Due to editorial error, Haworth published an earlier draft of this paper instead of the final draft.
Flaxbart, David
core   +1 more source

Aging is associated with positive responding to neutral information but reduced recovery from negative information [PDF]

, 2011
Studies on aging and emotion suggest an increase in reported positive affect, a processing bias of positive over negative information, as well as increasingly adaptive regulation in response to negative events with advancing age.
Angrilli, Birditt, Blanchard-Fields, Blumenthal, Bradley, Bradley, Buchanan, Cacioppo, Cacioppo, Carien M. van Reekum, Carstensen, Carstensen, Catherine J. Norris, Coats, Cuthbert, Davis, Folkman, Foti, Gavazzeni, Gross, Gruhn, Hitchcock, Isaacowitz, Ito, Jackson, Jackson, Kliegel, Kunzmann, Kunzmann, Lang, Lang, Larsen, Larsen, Larson, Lawrence L. Greischar, Lazarus, Levenson, Lockenhoff, Malatesta-Magai, Mather, Mroczek, Neta, O'Brien, Phillips, Regina C. Lapate, Richard J. Davidson, Rinn, Scheibe, Smith, Speisman, Stacey M. Schaefer, Tassinary, Thomas, Tsai, van Reekum, Vrana, Vrana   +56 more
core   +3 more sources

Constrained Federated Learning for AoI-Limited SFC in UAV-Aided MEC for Smart Agriculture

IEEE Transactions on Machine Learning in Communications and Networking, 2023
For a wide range of smart agriculture use cases, the prospects of utilizing the Internet of Things (IoT) are immense. Many IoT devices can be deployed for precision farming, soil management, automated irritation, information gathering, or performing some
Mohammad Akbari, Aisha Syed, W. Sean Kennedy, Melike Erol-Kantarci   +3 more
doaj   +1 more source

AoI-Oriented Resource Allocation for NOMA-Based Wireless Powered Cognitive Radio Networks Based on Multi-Agent Deep Reinforcement Learning

IEEE Access
In this paper, we study a wireless powered cognitive internet of things (IoT) network, where cognitive radio (CR) and non-orthogonal multiple access (NOMA) technologies are exploited to improve spectral efficiency, and radio frequency based energy ...
Tao He, Yingsheng Peng, Yong Liu, Hui Song   +3 more
doaj   +1 more source

Age-Optimal Updates of Multiple Information Flows

, 2018
In this paper, we study an age of information minimization problem, where multiple flows of update packets are sent over multiple servers to their destinations. Two online scheduling policies are proposed. When the packet generation and arrival times are
Kompella, Sastry, Sun, Yin, Uysal-Biyikoglu, Elif   +2 more
core   +1 more source