These terms are now often conflated. In foundational reconstruction and decoding literature their separation has been strict for good reasons: the tasks differ in difficulty, failure modes, what can be concluded from a result and what a method can realistically achieve.
Nishimoto et al., 2011
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Both of these cases assume that there is only one abstraction through which users should use the system or at least a specific part of the system.，更多细节参见体育直播