Semantic Similarity

A datamodel for representing semantic similarity between terms or lists of terms.

URI: https://w3id.org/oak/similarity

Name: similarity

Classes

Class	Description
BestMatch	None
InformationContentMethod	Describes how information content (IC) scores were computed. IC scores are only comparable if they were computed using the same method. If absent, IC scores are assumed to be log2 bits computed by OAK using the ontology as the corpus.
PairwiseSimilarity	Abstract grouping for representing individual pairwise similarities
TermPairwiseSimilarity	A simple pairwise similarity between two atomic concepts/terms
TermSetPairwiseSimilarity	A simple pairwise similarity between two sets of concepts/terms
TermInfo	None

Slots

Slot	Description
ancestor_id	the most recent common ancestor of the two compared entities
ancestor_information_content	The IC of the object
ancestor_label	the name or label of the ancestor concept
ancestor_source
average_score
background_count	The number of items (terms or annotated entities) in the background set, i
best_score
closure_predicates	The predicates used to compute the reflexive transitive closure when determin…
corpus	The corpus used to determine term frequencies
cosine_similarity	the dot product of two node embeddings divided by the product of their length…
dice_similarity
id
information_content	The IC is the negative log of the probability of the concept
information_content_method	How the information content scores in this object were computed
intersection_count
jaccard_similarity	The number of concepts in the intersection divided by the number in the union
label
match_source
match_source_label
match_subsumer
match_subsumer_label
match_target	the entity matches
match_target_label
metric
object_best_matches
object_id	The second of the two entities being compared
object_information_content	The IC of the object
object_label	the label or name for the second entity
object_source	the source for the second entity
object_termset
overlap_coefficient
phenodigm_score	the geometric mean of the jaccard similarity and the information content
scale	The scale or units of the IC scores
score	Abstract base slot for different kinds of scores
similarity
source	The system or resource that computed the scores, e
subject_best_matches
subject_id	The first of the two entities being compared
subject_information_content	The IC of the subject
subject_label	the label or name for the first entity
subject_source	the source for the first entity
subject_termset
subsumed_by_score
subsumes_score
union_count

Enumerations

Enumeration	Description
InformationContentCorpusEnum
InformationContentScaleEnum

Types

Type	Description
Boolean	A binary (true or false) value
Curie	a compact URI
Date	a date (year, month and day) in an idealized calendar
DateOrDatetime	Either a date or a datetime
Datetime	The combination of a date and time
Decimal	A real number with arbitrary precision that conforms to the xsd:decimal speci…
Double	A real number that conforms to the xsd:double specification
Float	A real number that conforms to the xsd:float specification
Integer	An integer
ItemCount
Jsonpath	A string encoding a JSON Path
Jsonpointer	A string encoding a JSON Pointer
Ncname	Prefix part of CURIE
NegativeLogValue
Nodeidentifier	A URI, CURIE or BNODE that represents a node in a model
NonNegativeFloat
Objectidentifier	A URI or CURIE that represents an object in the model
Sparqlpath	A string encoding a SPARQL Property Path
String	A character string
Time	A time object represents a (local) time of day, independent of any particular…
Uri	a complete URI
Uriorcurie	a URI or a CURIE
ZeroToOne

Subsets

Subset	Description