Jason R. Chen

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The startling claim was made that sequential time series clustering is meaningless. This has important consequences for a significant amount of work in the literature, since such a claim invalidates this work's contribution. In this paper, we show that sequential time series clustering is not meaningless, and that the problem highlighted in these works stem(More)
Sequential time series clustering is a technique used to extract important features from time series data. The method can be shown to be the process of clustering in the delay-vector space formalism used in the Dynamical Systems literature. Recently, the startling claim was made that sequential time series clustering is meaningless. This has important(More)
Programming by Demonstration (PbD) is a technique for programming robots that holds much promise in making robots more accessible to ordinary, non-technical users. However, a well known difficulty with the method is that a human will often demonstrate the task to be programmed inconsistently or even erroneously, leading to the inclusion of what is(More)
  • Jason R. Chen
  • 2009 IEEE/WIC/ACM International Joint Conference…
  • 2009
High level conceptual thought seems to be at the basis of the impressive human cognitive ability. Classical top-down (Logic based) and bottom-up (Connectionist) approaches to the problem have had limited success to date. We identify a small body of work that represents a different approach to AI. We call this work the Bottom Up Symbolic (BUS) approach and(More)
High level conceptual thought seems to be at the basis of the impressive human cognitive ability, and AI researchers aim to replicate this ability in artificial agents. Classical top-down (Logic based) and bottom-up (Connectionist) approaches to the problem have had limited success to date. We review a small body of work that represents a different approach(More)
Traditional latch-up (V<sub>DD</sub>-to-V<sub>SS</sub>) in CMOS IC's is formed by the parasitic p-n-p-n structure between VDD and VSS. In modern technologies, although the guard rings and substrate/ well pickups could efficiently overcome the latch-up failure in CMOS ICs, the latch-up failure phenomenon is still existed in many special application circuits.(More)
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