25 search results - page 2 / 5 » Charity auctions on social networks |
INFOCOM
2011
IEEE
12 years 8 months ago
2011
IEEE
Abstract—Secondary spectrum access is emerging as a promising approach for mitigating the spectrum scarcity in wireless networks. Coordinated spectrum access for secondary users ...
WIOPT
2010
IEEE
13 years 3 months ago
2010
IEEE
Abstract—Development of dynamic spectrum access and allocation techniques recently have made feasible the vision of cognitive radio systems. However, a fundamental question arise...
CN
2007
13 years 4 months ago
2007
We present a mechanism for auctioning bandwidth on a network-wide basis to end users or ISPs that will utilize it for the same time period. This mechanism consists of a set of sim...
WINE
2005
Springer
13 years 10 months ago
2005
Springer
The assessment of credibility and reputation of contractors in online auctions is the key issue in providing reliable environment for customer-to-customer e-commerce. Confident re...
WWW
2007
ACM
14 years 5 months ago
2007
ACM
Given a huge online social network, how do we retrieve information from it through crawling? Even better, how do we improve the crawling performance by using parallel crawlers tha...