Editing Semantic memory (section)

===Feature models===
Feature models view semantic categories as being composed of relatively unstructured sets of features. The [[semantic feature-comparison model]] describes memory as being composed of feature lists for different concepts.<ref name="Smith, E. E. 1974">{{cite journal | last1 = Smith | first1 = E. E. | last2 = Shoben | first2 = E. J. | last3 = Rips | first3 = L. J. | year = 1974 | title = Structure and process in semantic memory: A featural model for semantic decisions | journal = Psychological Review | volume = 81 | issue = 3| pages = 214–241 | doi=10.1037/h0036351}}</ref> According to this view, the relations between categories would not be directly retrieved, and would be indirectly computed instead. For example, subjects might verify a sentence by comparing the feature sets that represent its subject and predicate concepts. Such computational feature-comparison models include the ones proposed by Meyer (1970),<ref>{{cite journal | last1 = Meyer | first1 = D. E. | year = 1970 | title = On the representation and retrieval of stored semantic information | journal = Cognitive Psychology | volume = 1 | issue = 3| pages = 242–299 | doi=10.1016/0010-0285(70)90017-4}}</ref> Rips (1975),<ref>{{cite journal | last1 = Rips | first1 = L. J. | year = 1975 | title = Inductive judgments about natural categories | journal = Journal of Verbal Learning & Verbal Behavior | volume = 14 | issue = 6| pages = 665–681 | doi=10.1016/s0022-5371(75)80055-7}}</ref> and Smith ''et al.'' (1974).<ref name="Smith, E. E. 1974"/>

Early work in perceptual and conceptual categorization assumed that categories had critical features and that category membership could be determined by logical rules for the combination of features. More recent theories have accepted that categories may have an ill-defined or "fuzzy" structure<ref>{{cite journal | last1 = McCloskey | first1 = M. E. | last2 = Glucksberg | first2 = S. | year = 1978 | title = Natural categories: Well defined or fuzzy sets? | journal = Memory & Cognition | volume = 6 | issue = 4| pages = 462–472 | doi=10.3758/bf03197480| doi-access = free }}</ref> and have proposed probabilistic or global similarity models for the verification of category membership.<ref>{{cite journal | last1 = McCloskey | first1 = M. | last2 = Glucksberg | first2 = S. | year = 1979 | title = Decision processes in verifying category membership statements: Implications for models of semantic memory | journal = Cognitive Psychology | volume = 11 | issue = 1| pages = 1–37 | doi=10.1016/0010-0285(79)90002-1| s2cid = 54313506 }}</ref>