Combinatorial search algorithms achieve this efficiency by reducing the effective size of the search space or employing heuristics.

Combinatorial search algorithms are typically concerned with problems that are NP-hard.

Combinatorial search algorithms are normally implemented in an efficient imperative programming language, in an expressive declarative programming language such as Prolog, or some compromise, perhaps a functional programming language such as Haskell, or a multi-paradigm language such as LISP.

# Volume 4A: Combinatorial Algorithms, Part 1, 2011.

# Volume 4: Combinatorial Algorithms ( remainder ), in preparation

# Volume 4, Fascicle 0: Introduction to Combinatorial Algorithms and Boolean Functions.

# Volume 4, Fascicle 4: Generating All Trees — History of Combinatorial Generation, 2006.

Mathematicians playing Konane at a Combinatorial game theory workshop ( for technical content, see Combinatorial game theory # External links | external link )

# REDIRECT Combinatorial game theory

# REDIRECT Combinatorial game theory

# REDIRECT Combinatorial game theory

# REDIRECT Combinatorial proof

# redirect Combinatorial game theory

# REDIRECT Combinatorial chemistry

# redirect Combinatorial design

* Combinatorial pattern matching, a research area and a conference on combinatorial algorithms for strings, sequences, and trees.

D. H. Lehmer continued his father's interest in combinatorial computing and in fact wrote the article " Machine tools of Computation ," which is chapter one in the book " Applied Combinatorial Mathematics ," by Edwin Beckenbach, 1964.

In his 1972 paper, " Reducibility Among Combinatorial Problems ", Richard Karp used Stephen Cook's 1971 theorem that the boolean satisfiability problem is NP-complete ( also called the Cook-Levin theorem ) to show that there is a polynomial time many-one reduction from the boolean satisfiability problem to each of 21 combinatorial and graph theoretical computational problems, thereby showing that they are all NP-complete.

Combinatorial design theory is the part of combinatorial mathematics that deals with the existence, construction and properties of systems of finite sets whose arrangements satisfy generalized concepts of balance and / or symmetry.

Category: Combinatorial algorithms

# Legal rule combination: Previously the government might need to search every house to confiscate guns, and such a search would violate the Fourth Amendment to the United States Constitution.

# REDIRECT Web search engine

# First insert the node as with a normal binary search tree.

# REDIRECT Web search engine

On some Fox shows, a hashtag rests above the affiliate's logo ( e. g. # newgirl or # bones ) to provide viewers reference to the network's official search tag on Twitter to find or start discussions during the airing of a program.

# Employ a quiescence search.

# One of the twelve spies sent by Moses to search the land of Canaan ( Num.

# In healthcare data analysis, a workflow can be used to represent a sequence of steps which compose a complex data analysis ( data search and data manipulation steps ).

* Brief Lives ( collecting The Sandman # 41 – 49, 1992 – 1993, ISBN 1-85286-577-6 ): Dream's erratic younger sister Delirium convinces him to help her search for their missing brother, the former Endless Destruction, who left his place among the " family " three hundred years before.

# An international search for knowledge to strengthen the foundations of imperial rule.

# If the queue is empty, every node on the graph has been examined – quit the search and return " not found ".

# REDIRECT A * search algorithm

https :// www. google. com / search? q = celtic + quest & oe = utf-8 & aq = t & rls = org. mozilla: en-US: official & client = firefox-a & um = 1 & ie = UTF-8 & hl = en & tbm = isch & source = og & sa = N & tab = wi & ei = Z7EtUOW3LMXv6wG1s4BI & biw = 973 & bih = 572 & sei = a7EtUJKLEabb6wHB9oFY #

# Every user can search, retrieve, create and store documents.

# REDIRECT Breadth-first search

# REDIRECT Depth-first search

# REDIRECT Best-first search

# Searchability of unstructured textual data – A simple search on some data, e. g. apple, results in links where there is a reference to that precise search term.

# Gather the N nearest photons using the nearest neighbor search function on the photon map.

# REDIRECT A * search algorithm

# Lack of search for an optimum solution.

# The combination of organization, labeling, search and navigation systems within websites and intranets.