Lessing's work has always been difficult to define: a mix of classical realism, science-fiction, parable, memoir, fantasy and polemic.
The ambiguities in the meaning of information make it even more difficult to define a way to measure another much bandied-about concept in computer science, namely complexity.
The tailoring was more about serenity, using fabrics that were difficult to define: A coat might have been alligator, or perhaps a reptile print on leather.
De Beers estimates that only 3percentt of global rough diamonds now come from conflict areas in Africa, according to Andrew Lamont, a company spokesman who repeatedly said it was difficult to define a conflict area.
Perhaps that's because China is a dictatorship without a dictator, having abandoned totalitarianism in favor of something far more difficult to define: a one-party state run by a committee of studiously bland apparatchiks, terrified of political challengers and convinced that its reign rests on continuing to raise the living standards of the people.
It is difficult to define a cosparsity that exactly matches the signal under consideration.
Ultimately, it will be (at least) as difficult to define a mental state in rigorous terms as it is to define a material state.
However, besides requiring stringent assumptions, this methodology involves a number of sub-models and parameterizations which, being difficult to define a priori, are potential sources of uncertainty.
Due to the physical property complexity of aerosols, it is difficult to define a standard term of "flammability limits" as is possible for gases.
As it was difficult to define a clear day, the model was later modified by Prescott (1940) which replaces clear day radiation with extraterrestrial radiation.
As mention in a previous section, it is difficult to define a pattern behaviour between the size and amount of incorporated cork and plasma surface treatment.
