The Dynamic Host Connguration Protocol (DHCP) was designed to allow the frequent allocation of resources and connguration information useful to Internet hosts at boot time, including Internet addresses in particular. It turns out that getting a new Internet address is crucial to the problem of enabling the movement of Internet hosts from one network to another, and thus DHCP is quite relevant t...

Multidestination message passing has been proposed as a mechanism to achieve eecient multicast in regular direct and indirect networks. The application of this technique to parallel systems based on irregular networks has, however, not been studied. In this paper we propose two schemes for performing multicast using multidestination worms on irregular networks and examine the extent to which mu...

Since the first distributed attack networks were seen in 1999, computer misuse enabled by botnets, worms, and other vectors has steadily grown. This rapid growth has given rise to a variety of ethical challenges for researchers seeking to combat these threats. For example, if someone has the ability to take control of a botnet, can they just clean up all the infected hosts? Can we deceive users...

When is a person with a cold contagious? A couple of friends, who are put off when I keep my distance from their sneezing and coughing, insist one is only contagious a week or so before symptoms appear. In the back of my memory is the idea that one remains contagious until a few days *after* primary symptoms disappear. I'm not usually so concerned about this, but I'm coping with a couple of oth...

Based on a vision that, in the future, applications will be flexibly built out of small-grained components, we argue that current technologies do not adequately support component deployment in such a setting. Specifically, current technologies realize deployment processes where most decisions are made by the application manufacturer. When using small-grained components, however, the component u...

File access patterns for application startup are fixed and predictable. More precisely, they would obey the Markovian property of each future access depending only on the current access. In this project, we attempt to learn the Markov chain transition probabilities, where each file access is a state in the chain. But since multiple applications may run at the same time, the file access chains f...

The lure of social capital motivates startups to form in clusters with similar companies. However, having social capital is different from exploiting it, and there is conflicting research on the ultimate commercial success of cluster members. This work attempts to disambiguate the relationship between a startup’s membership in a cluster and the startup’s performance by modeling the availability...

Application startup latency has become a performance problem for both desktop applications and web applications. In this paper, we show that much of the latency experienced during application startup can be avoided by more e ciently packing application code pages. To take advantage of more e cient packing, we describe the implementation of demand paging for web applications. Finally, we show th...

Many computer systems, such as diskless workstations, are bootstrapped by loading one or more code files across a network. Unfortunately, the protocol used to load these initial files has not been standardized numerous methods have been employed by different computer manufacturers. This can make it difficult, for example, for an installation to support several different kinds of systems on a lo...

Using data from three deformation positions (680 nm, 730 nm, and 765 nm) of spectral reflectance and derivative spectra curves from red to near infrared spectral bands, red edge reflectance spect ra index was developed. Nitrogen contents of rice canopy leaves were found to be significantly correlated with the red edge reflectance spectra index values at 0.01 probability level for different rice...