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A theory of the learnable
Open accessAbstract
Humans appear to be able to learn new concepts without needing to be programmed explicitly in any conventional sense.In this paper we regard learning as the phenomenon of knowledge acquisition in the absence of explicit programming.We give a precise methodology for studying this phenomenon from a computational viewpoint.It consists of choosing an appropriate information gathering mechanism, the learning protocol, and exploring the class of concepts that can be learned using it in a reasonable (polynomial) number of steps.Although inherent algorithmic complexity appears to set serious limits to the range of concepts that can be learned, we show that there are some important nontrivial classes of propositional concepts that can be learned in a realistic sense.
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“The theoretical characterization of catastrophic forgetting bounds is established through a rigorous framework grounded in Probably Approximately Correct (PAC) learning theory”
From Mitigating catastrophic forgetting in lifelong learning: a hybrid architecture integrating neural ordinary differential equations with memory-augmented transformers (2025) · cites this paper as [38]
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“The forgetting bound quantifies the maximum expected performance degradation on task”
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“Research focusing on inconclusive evidence refers to the way in which non-deterministic, ML algorithms produce outputs that are expressed in probabilistic terms (James et al. 2013;Valiant 1984).”
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“These types of algorithms generally identify association and correlation between variables in the underlying data, but not causal connections.”
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Metadata
- Authors
- Valiant, L. G.
- Affiliations
- Harvard University (US)
- Corresponding author
- Valiant, L. G.
- Venue
- Communications of the ACM
- Published
- 1984-11-05
- Volume
- 27
- Issue
- 11
- Pages
- 1134-1142
- ISSN
- 0001-0782 (ISSN-L)
- 1557-7317
- OpenAlex
- W4238893454
- Cited by
- 3,279
- References
- 3
- Citations by year
- 2026: 58 · 2025: 93 · 2024: 117 · 2023: 106 · 2022: 123 · 2021: 116 · 2020: 96 · 2019: 91 · 2018: 89 · 2017: 94 · 2016: 89 · 2015: 84 · 2014: 62 · 2013: 91 · 2012: 71
- FWCI
- 10.16
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Communications of the ACM (publishedVersion)
- Funders
- National Science Foundation
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning and Algorithms
- Physical Sciences › Computer Science › Computational Theory and Mathematics › Computability, Logic, AI Algorithms
- Physical Sciences › Computer Science › Computational Theory and Mathematics › semigroups and automata theory
- Keywords
- learnability, concept learning, knowledge acquisition, learning protocols, information gathering, computational complexity, algorithmic complexity, computational learning theory
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