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  2. Random forest - Wikipedia

    en.wikipedia.org/wiki/Random_forest

    Random forests or random decision forests is an ensemble learning method for classification, regression and other tasks that works by creating a multitude of decision trees during training. For classification tasks, the output of the random forest is the class selected by most trees.

  3. Loop fission and fusion - Wikipedia

    en.wikipedia.org/wiki/Loop_fission_and_fusion

    However, the above example unnecessarily allocates a temporary array for the result of sin(x). A more efficient implementation would allocate a single array for y, and compute y in a single loop. To optimize this, a C++ compiler would need to: Inline the sin and operator+ function calls. Fuse the loops into a single loop.

  4. Random tree - Wikipedia

    en.wikipedia.org/wiki/Random_tree

    In mathematics and computer science, a random tree is a tree or arborescence that is formed by a stochastic process. Types of random trees include: Types of random trees include: Uniform spanning tree , a spanning tree of a given graph in which each different tree is equally likely to be selected

  5. Tombstone diagram - Wikipedia

    en.wikipedia.org/wiki/Tombstone_diagram

    To explain, the lefthand T is a C compiler written in C that produces machine code. The righthand T is a C compiler written in machine code that also produces machine code. The diagram illustrates that this can be used to bootstrap the left T by using it to compile the compiler written in C. In computing, tombstone diagrams (or T-diagrams ...

  6. Loop nest optimization - Wikipedia

    en.wikipedia.org/wiki/Loop_nest_optimization

    Loop tiling partitions a loop's iteration space into smaller chunks or blocks, so as to help ensure data used in a loop stays in the cache until it is reused. The partitioning of loop iteration space leads to partitioning of a large array into smaller blocks, thus fitting accessed array elements into cache size, enhancing cache reuse and eliminating cache size requirements.

  7. Common subexpression elimination - Wikipedia

    en.wikipedia.org/wiki/Common_subexpression...

    In compiler theory, common subexpression elimination (CSE) is a compiler optimization that searches for instances of identical expressions (i.e., they all evaluate to the same value), and analyzes whether it is worthwhile replacing them with a single variable holding the computed value.

  8. Csmith - Wikipedia

    en.wikipedia.org/wiki/Csmith

    It can generate random C programs that statically and dynamically conform to the C99 standard. It is used for stress-testing compilers, static analyzers, and other tools that process C code. It is a free, open source, permissively licensed C compiler fuzzer developed by researchers at the University of Utah.

  9. Abstract syntax tree - Wikipedia

    en.wikipedia.org/wiki/Abstract_syntax_tree

    Abstract syntax trees are data structures widely used in compilers to represent the structure of program code. An AST is usually the result of the syntax analysis phase of a compiler. It often serves as an intermediate representation of the program through several stages that the compiler requires, and has a strong impact on the final output of ...