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Dependency structural tree is widely used in the research of dependency grammar and parsing, and it is one of the important forms of the syntactic structure of natural language. The research of the theoretical forms and their probabilities are of great importance to probability-based disambiguation of parsing. In this paper we propose the formula and its algorithm to calculate the probability of any...
This paper describes a practical method of Online Risk Assessment (ORA) on urban power system. It includes the Online Probabilistic Risk Indices (OPRI) & their arithmetic, and the models for computing parameters varying with operating conditions which are used for Probabilistic Risk Indices calculation. The ability of the method can provide operators in control center the near term identification...
The reliability of the power system in a future short term is studied according to the current state. Basing on this, we can alarm and prevent the outage to assure the safety and reliability of the power system. Traditional reliability is an expected value of long-term reliability level under the fixed operating mode, which cannot reflect the real time reliability level under the current operational...
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