Learning families of algebraic structures from informant. / Bazhenov, Nikolay; Fokina, Ekaterina; San Mauro, Luca.
In: Information and Computation, Vol. 275, 104590, 12.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Learning families of algebraic structures from informant
AU - Bazhenov, Nikolay
AU - Fokina, Ekaterina
AU - San Mauro, Luca
N1 - Publisher Copyright: © 2020 Elsevier Inc. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12
Y1 - 2020/12
N2 - We combine computable structure theory and algorithmic learning theory to study learning of families of algebraic structures. Our main result is a model-theoretic characterization of the learning type InfEx≅, consisting of the structures whose isomorphism types can be learned in the limit. We show that a family of structures is InfEx≅-learnable if and only if the structures can be distinguished in terms of their Σ2inf-theories. We apply this characterization to familiar cases and we show the following: there is an infinite learnable family of distributive lattices; no pair of Boolean algebras is learnable; no infinite family of linear orders is learnable.
AB - We combine computable structure theory and algorithmic learning theory to study learning of families of algebraic structures. Our main result is a model-theoretic characterization of the learning type InfEx≅, consisting of the structures whose isomorphism types can be learned in the limit. We show that a family of structures is InfEx≅-learnable if and only if the structures can be distinguished in terms of their Σ2inf-theories. We apply this characterization to familiar cases and we show the following: there is an infinite learnable family of distributive lattices; no pair of Boolean algebras is learnable; no infinite family of linear orders is learnable.
KW - Algorithmic learning
KW - Computable structures
KW - Inductive inference
KW - Infinitary logic
KW - Linear orders
KW - Turing computable embeddings
KW - IDENTIFICATION
UR - http://www.scopus.com/inward/record.url?scp=85086104258&partnerID=8YFLogxK
U2 - 10.1016/j.ic.2020.104590
DO - 10.1016/j.ic.2020.104590
M3 - Article
AN - SCOPUS:85086104258
VL - 275
JO - Information and Computation
JF - Information and Computation
SN - 0890-5401
M1 - 104590
ER -
ID: 24471088