This paper addresses the problem of improving the accuracy of an hypothesis output by a
learning algorithm in the distribution-free (PAC) learning model. A concept class is learnable …

In opportunistic networks, instead of assuming an end-to-end path as in the traditional
Internet model, messages are exchanged opportunistically when an encounter happens …

Networking for challenged environments, or Delay-and Disruption-Tolerant Networking as it
is now most commonly referred to, has attracted great attention in the past few years by the …

Many emerging scientific and industrial applications require transferring multiple Tbytes of
data on a daily basis. Examples include pushing scientific data from particle …

作为一种新型的体系结构, 容延容断网络(delay/disruption tolerant network, 简称DTN)
近年来得到了广泛的研究与应用. 由于其面临的应用环境极为特殊, 传统网络的路由协议无法 …

Delay-and Disruption-Tolerant Networking (DTN) is a new communication paradigm that
can span across multiple networks and cope with harsh conditions not envisioned in the …

Delay-tolerant networks (DTNs) rely on the mobility of nodes and their contacts to make up
with the lack of continuous connectivity and, thus, enable message delivery from source to …

Many emerging scientific and industrial applications require transferring multiple terabytes of
data on a daily basis. Examples include pushing scientific data from particle …

An opportunistic network of mobile nodes can be created when mobile devices work
together to create an ad hoc store-and-forward architecture, with messages forwarded via …

So far, the search for Opportunistic Network (ON) applications has focused on urban/rural
scenarios where the combined use of mobility and the store-carry-and-forward paradigm …