Search Results for author: Maurice Funk

Found 5 papers, 1 papers with code

Towards Ontology Construction with Language Models

no code implementations18 Sep 2023 Maurice Funk, Simon Hosemann, Jean Christoph Jung, Carsten Lutz

We present a method for automatically constructing a concept hierarchy for a given domain by querying a large language model.

Language Modelling Large Language Model

SAT-Based PAC Learning of Description Logic Concepts

1 code implementation15 May 2023 Balder ten Cate, Maurice Funk, Jean Christoph Jung, Carsten Lutz

We propose bounded fitting as a scheme for learning description logic concepts in the presence of ontologies.

PAC learning

On the non-efficient PAC learnability of conjunctive queries

no code implementations22 Aug 2022 Balder ten Cate, Maurice Funk, Jean Christoph Jung, Carsten Lutz

This note serves three purposes: (i) we provide a self-contained exposition of the fact that conjunctive queries are not efficiently learnable in the Probably-Approximately-Correct (PAC) model, paying clear attention to the complicating fact that this concept class lacks the polynomial-size fitting property, a property that is tacitly assumed in much of the computational learning theory literature; (ii) we establish a strong negative PAC learnability result that applies to many restricted classes of conjunctive queries (CQs), including acyclic CQs for a wide range of notions of "acyclicity"; (iii) we show that CQs (and UCQs) are efficiently PAC learnable with membership queries.

Learning Theory

Frontiers and Exact Learning of ELI Queries under DL-Lite Ontologies

no code implementations29 Apr 2022 Maurice Funk, Jean Christoph Jung, Carsten Lutz

We study ELI queries (ELIQs) in the presence of ontologies formulated in the description logic DL-Lite.

Actively Learning Concepts and Conjunctive Queries under ELr-Ontologies

no code implementations18 May 2021 Maurice Funk, Jean Christoph Jung, Carsten Lutz

We also show that EL-concepts are not polynomial query learnable in the presence of ELI-ontologies.

Active Learning

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