By combining data on all known bird species, this tree is the most impressive snapshot yet of one of Earth’s most awe-inspiring classes of animal.

Imagine trying to tell identical twins apart just by looking at their fingerprints. That's how challenging it can be for ...

A parser takes tokens and builds a data structure like an abstract syntax tree (AST). The parser is concerned with context: does the sequence of tokens fit the grammar? A compiler is a combined lexer ...

Forestry researchers got to work collecting comprehensive data about every tree in the city. They recorded each tree’s species, the street location and GPS coordinates, and included information ...

titan-ast grammar file with regular expression style syntax,see grammar-file-syntax for details. default terminal grammar: Epsilon Eof. default nonterminal grammar: augmentedNonterminal. format of ...

But amid these drab buildings, there’s an oasis of greenery — a small forest of hundreds of poplar trees tucked between two baseball diamonds. On a Friday morning, as he does on most days, John ...