Ontology from Local Hierarchical Structure in Text
| dc.creator | Murtagh, F. | |
| dc.creator | Mothe, J. | |
| dc.creator | Englmeier, K. | |
| dc.date | 2007-01-27 | |
| dc.date.accessioned | 2026-07-07T07:43:29Z | |
| dc.date.available | 2026-07-07T07:43:29Z | |
| dc.description | We study the notion of hierarchy in the context of visualizing textual data and navigating text collections. A formal framework for ``hierarchy'' is given by an ultrametric topology. This provides us with a theoretical foundation for concept hierarchy creation. A major objective is {\em scalable} annotation or labeling of concept maps. Serendipitously we pursue other objectives such as deriving common word pair (and triplet) phrases, i.e., word 2- and 3-grams. We evaluate our approach using (i) a collection of texts, (ii) a single text subdivided into successive parts (for which we provide an interactive demonstrator), and (iii) a text subdivided at the sentence or line level. While detailing a generic framework, a distinguishing feature of our work is that we focus on {\em locality} of hierarchic structure in order to extract semantic information. | |
| dc.description | 35 pp., 12 figures | |
| dc.identifier | https://arxiv.org/abs/cs/0701180 | |
| dc.identifier | http://arxiv.org/abs/cs/0701180 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/122845 | |
| dc.subject | Information Retrieval | |
| dc.subject | H.5; I.5.3; H.5.2; I.7.2; H.3 | |
| dc.title | Ontology from Local Hierarchical Structure in Text | |
| dc.type | text |