Bottom-up parsing is a technique used in syntax analysis where the parser begins with the input symbols and works its way up to the start symbol of a grammar, building the parse tree incrementally. This approach contrasts with top-down parsing, where the parser starts from the start symbol and attempts to derive the input string. Bottom-up parsing can handle a wider range of grammars, including some that are ambiguous, making it a crucial concept in understanding parsing methods and their applications.
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