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EnglishWe extend the theory of minimal absent words to (rooted and unrooted) trees, having edges labeled by letters from an alphabet of cardinality. We show that the set of minimal absent words of a rooted (resp. unrooted) tree T with n nodes has cardinality (resp.), and we show that these bounds are realized. Then, we exhibit algorithms to compute all minimal absent words in a rooted (resp. unrooted) tree in output-sensitive time (resp. assuming an integer alphabet of size polynomial in n.
| Data di pubblicazione: | 2019 |
| Titolo: | Minimal Absent Words in Rooted and Unrooted Trees |
| Autori: | |
| Citazione: | Fici, G., & Gawrychowski, P. (2019). Minimal Absent Words in Rooted and Unrooted Trees. In P.S. Brisaboa N.R. (a cura di), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (pp. 152-161). Springer. |
| Abstract: | We extend the theory of minimal absent words to (rooted and unrooted) trees, having edges labeled by letters from an alphabet of cardinality. We show that the set of minimal absent words of a rooted (resp. unrooted) tree T with n nodes has cardinality (resp.), and we show that these bounds are realized. Then, we exhibit algorithms to compute all minimal absent words in a rooted (resp. unrooted) tree in output-sensitive time (resp. assuming an integer alphabet of size polynomial in n. |
| URL: | https://www.springer.com/series/558 |
| ISBN: | 978-3-030-32685-2 978-3-030-32686-9 |
| Digital Object Identifier (DOI): | 10.1007/978-3-030-32686-9_11 |
| Appare nelle tipologie: | 2.07 Contributo in atti di convegno pubblicato in volume |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Minimal Absent Words in Rooted and Unrooted Trees.pdf | Versione Editoriale | Administrator Richiedi una copia | ||
| 1907.12034.pdf | Post-print | Open Access Visualizza/Apri |
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