• Facets (new session)
• Description
• Metadata
• Settings
  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpdbprdf-labelfacetshttp://dbpedia.org/resource/inference/rules/dbpedia#http://dbpedia.org/resource/inference/rules/opencyc#http://dbpedia.org/resource/inference/rules/umbel#http://dbpedia.org/resource/inference/rules/yago#http://dbpedia.org/schema/property_rules#http://www.ontologyportal.org/inference/rules/SUMO#http://www.ontologyportal.org/inference/rules/WordNet#http://www.w3.org/2002/07/owl#ldpoplwebskos-transurn:det:rdf:labelvirtrdf-labelvirtrdf-urlNone
    
  • Inverse Functional Properties: Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects
  • "Same As": Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects (recommended) Apply to subjects, objects and predicates (not recommended on big datasets) Apply to predicates only (special use cases only)

About: Bidirectional map     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Group100031264, within Data Space : dbpedia.org associated with source document(s)

Type: yago:WikicatAssociativeArraysyago:Abstraction100002137yago:Arrangement107938773yago:Array107939382yago:Group100031264 New Facet based on Instances of this Class

In computer science, a bidirectional map is an associative data structure in which the pairs form a one-to-one correspondence. Thus the binary relation is functional in each direction: each can also be mapped to a unique . A pair thus provides a unique coupling between and so that can be found when is used as a key and can be found when is used as a key. Mathematically, a bidirectional map can be defined a bijection between two different sets of keys and of equal cardinality, thus constituting an injective and surjective function: