Po-Hsien Chang

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This paper studies the problem of automatic assertion extraction at the input boundary of a given unit embedded in a system. This paper proposes a data mining approach that analyzes simulation traces to extract the assertions. We borrow two key concepts from the sequential data mining and develop an effective assertion extraction approach specific to our(More)
The question of whether or not structural test measurements can be used to predict functional or system Fmax, has been studied for many years. This paper presents a data learning approach to study the question. Given Fmax values and structural delay measurements on a set of sample chips, we propose a method called conformity check whose goal is to select a(More)
This paper proposes an online functional test selection approach based on novelty detection. Unlike other test selection methods, the idea of this paper is selecting novel functional tests to improve coverage from a large pool of available test programs before simulation. A graph based encoding scheme is developed to measure the similarity between test(More)
Delay variation can cause a design to fail its timing specification. Ernst et al. [2003] observe that the worst delay of a design is least probable to occur. They propose a mechanism to detect and correct occasional errors while the design can be optimized for the common cases. Their experimental results show significant performance (or power) gain as(More)
Delay variation can cause a design to fail its timing specification. Ernst in D. Ernst, et al., (2003), observes that the worst delay of a design is least probable to occur. They propose a mechanism to detect and correct occasional errors while the design can be optimized for the common cases. Their experimental results show significant performance (or(More)
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