Improved algorithms for dynamic shortest paths

dc.contributor.author	Djidjev, H.N.	en
dc.contributor.author	Πάντζιου, Γραμματή Ε.	el
dc.contributor.author	Ζαρολιάγκης, Χρήστος	el
dc.date.accessioned	2015-05-24T20:14:01Z
dc.date.available	2015-05-24T20:14:01Z
dc.date.issued	2015-05-24
dc.identifier.uri	http://hdl.handle.net/11400/11085
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.423.4896	en
dc.subject	Συντομότερη διαδρομή
dc.subject	Δυναμικός αλγόριθμος
dc.subject	Επίπεδα διγράμματος
dc.subject	Open Shortest Path First (Computer network protocol)
dc.subject	Dynamic algorithm
dc.subject	Planar digraph
dc.title	Improved algorithms for dynamic shortest paths	en
heal.type	journalArticle
heal.classification	Πληροφορική
heal.classification	Μαθηματικά
heal.classification	Computer science
heal.classification	Mathematics
heal.classificationURI	N/A-Πληροφορική
heal.classificationURI	N/A-Μαθηματικά
heal.classificationURI	http://skos.um.es/unescothes/C00750
heal.classificationURI	http://skos.um.es/unescothes/C02437
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh2003001440
heal.identifier.secondary	DOI: 10.1.1.423.4896
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Πληροφορικής Τ.Ε.	el
heal.publicationDate	2000
heal.bibliographicCitation	Djidjev, H., Pantziou, G. and Zaroliagis, C. (2000) Improved Algorithms for Dynamic Shortest Paths. Algorithmica. [Online] 28 (4). pp.367-389. Available from: http://citeseerx.ist.psu.edu [Accessed 24/05/2015]	en
heal.abstract	We describe algorithms for finding shortest paths and distances in outerplanar and planar digraphs that exploit the particular topology of the input graph. An important feature of our algorithms is that they can work in a dynamic environment, where the cost of any edge can be changed or the edge can be deleted. In the case of outerplanar digraphs, our data structures can be updated after any such change in only logarithmic time. A distance query is also answered in logarithmic time. In the case of planar digraphs, we give an interesting tradeoff between preprocessing, query, and update times depending on the value of a certain topological parameter of the graph. Our results can be extended to n-vertex digraphs of genus O(n1−ε) for any ε>0.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Algorithmica	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true