with an increasing emphasis on security, automated personal identification based on biometrics has been receiving extensive attention. iris recognition, as an emerging biometric recognition approach, is becoming a very active topic in both research and practical applications. in general, a typical iris recognition system includes iris imaging, iris liveness detection, and recognition. this rese...

We formally introduce the concept of localizing the Elliott conjecture at a given strongly self-absorbing C∗-algebra D; we also explain how the known classification theorems for nuclear C∗-algebras fit into this concept. As a new result in this direction, we show that the class of separable, unital, simple C∗-algebras with locally finite decomposition rank and UCT, and for which projections sep...

Concern Oriented Programming seeks to decrease the cost of anticipated areas of change by isolating them from the rest of the code base. Although this reduces the cost of making anticipated changes, unanticipated changes may result in higher costs of program understanding during the reengineering process. Preserving the “chain of evidence,” a software design record semantically linked with anno...

Heuristic search in large problem spaces inherently calls for algorithms capable of running under restricted memory. This question has been investigated in a number of articles. However, in general the e cient usage of two-layered storage systems is not further discussed. Even if hard-disk capacity is su cient for the problem instance at hand, the limitation of main memory may still represent t...