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170
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TOCL
2011
15 years 1 months ago
2011
In a seminal paper from 1985, Sistla and Clarke showed that the model-checking problem for Linear Temporal Logic (LTL) is either NP-complete or PSPACE-complete, depending on the s...
177
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IUI
1997
ACM
15 years 10 months ago
1997
ACM
Historically, efforts at user modelling in educational systems have tended to employ knowledge representations in which symbolic (or "linguistic") cognition is emphasize...