University of California

About: University of California is a education organization based out in Oakland, California, United States. It is known for research contribution in the topics: Population & Layer (electronics). The organization has 55175 authors who have published 52933 publications receiving 1491169 citations. The organization is also known as: UC & University of California System.

Detecting Public Network Attacks Using Signatures and Fast Content Analysis

Abstract: Network worms or viruses are a growing threat to the security of public and private networks and the individual computers that make up those networks. A content sifting method if provided that automatically generates a precise signature for a worm or virus that can then be used to significantly reduce the propagation of the worm elsewhere in the network or eradicate the worm altogether. The content sifting method is complemented by a value sampling method that increases the throughput of network traffic that can be monitored. Together, the methods track the number of times invariant strings appear in packets and the network address dispersion of those packets including variant strings. When an invariant string reaches a particular threshold of appearances and address dispersion, the string is reported as a signature for suspected worm.

Sequential Program Prefetching in Memory Hierarchies

Abstract: Memory transfers due to a cache miss are costly. Prefetching all memory references in very fast computers can increase the effective CPU speed by 10 to 25 percent.

Analysis of Tetrapod Gaits: General Considerations and Symmetrical Gaits

Abstract: The relative timing of the cyclic contacts that the feet of tetrapods make with the ground in terrestrial locomotion determines the gaits of the animals. This chapter reports on a comprehensive and integrative study that establishes a system for analyzing gaits. The model facilitates description, identifies all possible gaits, permits the simultaneous study of hundreds of locomotor performances, and helps to interpret the selection of gaits by the various animals.

On Formalism in Specifications

Abstract: A critique of a natural-language specification, followed by presentation of a mathematical alternative, demonstrates the weakness of natural language and the strength of formalism in requirements specifications.

Method of grafting genetically modified cells to treat defects, disease or damage of the central nervous system

Abstract: Methods of genetically modifying donor cells by gene transfer for grafting into the central nervous system to treat diseased or damaged cells are disclosed. The modified donor cells produce a molecule capable of affecting the recovery of cells in the CNS. Methods and vectors for carrying out gene transfer and grafting are described.