منابع مشابه
Trying to Understand PEG
Parsing Expression Grammar (PEG) encodes a recursivedescent parser with limited backtracking. Its properties are useful in many applications. In its appearance, PEG is almost identical to a grammar in the Extended Backus-Naur Form (EBNF), but may define a different language. Recent research formulated some conditions under which PEG is equivalent to its interpretation as EBNF. However, PEG has ...
متن کاملTrying to Understand RoboCup
“Football is a very simple game. For 90 minutes, 22 men go running after the ball, and at the end, the Germans win.” Although the game is simple, analyzing it can be hard. Just what makes one team better than another? How much difference do tactics make? Is there really such a thing as a “lucky win”? Here, we try to answer these questions in the context of RoboCup. We take the giant set of log ...
متن کاملTrying to understand mass
We try to understand how particles acquire mass in general, and in particular, how they acquire mass in the standard model and beyond.
متن کاملNowhere to hide.
Northern Hemisphere's carbon dioxide emissions. "That's much more than any terrestrial plant ecologist would have considered likely," Tans said. Conserving tree and plant populations, he added, might raise their carbon dioxide uptake even higher. Understanding how carbon cycles through plants is vital to decreasing global warming. By burning fuel and clearing forests, human activity generates 7...
متن کاملTrying Harder to Fail First
Variable ordering heuristics can have a profound e ect on the performance of backtracking search algorithms for constraint satisfaction problems. The smallest-remaining-domain heuristic is a commonlyused dynamic variable ordering heuristic, used in conjunction with algorithms such as forward checking which look ahead at the e ects of each variable instantiation on those variables not yet instan...
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ژورنال
عنوان ژورنال: The Iowa Review
سال: 1992
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.4098