958 search results - page 81 / 192 » Resolving the Micropayment Problem |
CSDA
2007
14 years 10 months ago
2007
The log-likelihood function of threshold vector error correction models is neither differentiable, nor smooth with respect to some parameters. Therefore, it is very difficult to ...
DAM
2007
14 years 10 months ago
2007
The expected number of n-base long sequences consistent with a given SBH spectrum grows exponentially with n, which severely limits the potential range of applicability of SBH even...
JSS
2006
14 years 10 months ago
2006
Ecological security is an important basis of the entire human security system, the cornerstone for human survival. Knowing the status of ecological security is crucial for making ...
AMC
2005
14 years 10 months ago
2005
Abstract. Key authentication is very important in secret communications and data security. Recently, Lee, Hwang and Li proposed a new public key authentication scheme for cryptosys...
APPML
2005
14 years 10 months ago
2005
A fundamental task in evolutionary biology is the amalgamation of a collection P of leaf-labelled trees into a single parent tree. A desirable feature of any such amalgamation is ...