Matches in SemOpenAlex for { <https://semopenalex.org/work/W2259353110> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W2259353110 abstract "With the growing availability of diverse and complex data to a wide range of users through the Web, two major information access challenges are becoming increasingly important. The first one is enabling powerful querying, exploratory and analytical operations on unstructured or minimally structured (extracted) data beyond keyword search. The second one is enabling flexible and navigational operations on structured data containing complex relationships. This thesis explores and demonstrates the role semantic metadata plays in addressing both of these challenges. First we consider the problem of developing analytical operators for unstructured data such as text and other media collections. Advances in information extraction and metadata annotation techniques are making it possible to automatically annotate such data with various kinds of taxonomies. Presently, these taxonomies are used just for navigation. We develop several, well-founded analytical operators and algorithms that exploit such taxonomies for novel data summarization and comparative analysis. We then consider the problem of exploring structured datasets that include complex semantic relationships. Presently, the use of semantic metadata to explore structured data is limited to OLAP dimension hierarchies which require a well-crafted data representation. We leverage the approach of multi-faceted (dynamic) navigation used for document collections to develop novel techniques and algorithms for exploration of data that contains complex semantic relationships. We then turn to the problem of efficient query processing on minimally structured data where semantic metadata is uniformly represented along with the data as a semantic graph. We specifically focus on the efficient execution of exact and inexact graph pattern queries on such data. For exact match queries, we develop a complete query algebra that addresses open problems with regard to efficient graph extraction, grouping and aggregation. For inexact match queries, we develop a ranking algorithm that systematically combines both partial structural matches and semantic similarities in order to return semantically-ranked results." @default.
- W2259353110 created "2016-06-24" @default.
- W2259353110 creator A5010114060 @default.
- W2259353110 creator A5027373849 @default.
- W2259353110 date "2007-01-01" @default.
- W2259353110 modified "2023-10-18" @default.
- W2259353110 title "Semantic metadata driven data analysis" @default.
- W2259353110 hasPublicationYear "2007" @default.
- W2259353110 type Work @default.
- W2259353110 sameAs 2259353110 @default.
- W2259353110 citedByCount "0" @default.
- W2259353110 crossrefType "journal-article" @default.
- W2259353110 hasAuthorship W2259353110A5010114060 @default.
- W2259353110 hasAuthorship W2259353110A5027373849 @default.
- W2259353110 hasConcept C103692084 @default.
- W2259353110 hasConcept C124101348 @default.
- W2259353110 hasConcept C132525143 @default.
- W2259353110 hasConcept C136764020 @default.
- W2259353110 hasConcept C153048206 @default.
- W2259353110 hasConcept C153083717 @default.
- W2259353110 hasConcept C154945302 @default.
- W2259353110 hasConcept C170858558 @default.
- W2259353110 hasConcept C2129575 @default.
- W2259353110 hasConcept C23123220 @default.
- W2259353110 hasConcept C2781252014 @default.
- W2259353110 hasConcept C40077939 @default.
- W2259353110 hasConcept C41008148 @default.
- W2259353110 hasConcept C511149849 @default.
- W2259353110 hasConcept C5655090 @default.
- W2259353110 hasConcept C69075417 @default.
- W2259353110 hasConcept C75684735 @default.
- W2259353110 hasConcept C80444323 @default.
- W2259353110 hasConcept C93518851 @default.
- W2259353110 hasConceptScore W2259353110C103692084 @default.
- W2259353110 hasConceptScore W2259353110C124101348 @default.
- W2259353110 hasConceptScore W2259353110C132525143 @default.
- W2259353110 hasConceptScore W2259353110C136764020 @default.
- W2259353110 hasConceptScore W2259353110C153048206 @default.
- W2259353110 hasConceptScore W2259353110C153083717 @default.
- W2259353110 hasConceptScore W2259353110C154945302 @default.
- W2259353110 hasConceptScore W2259353110C170858558 @default.
- W2259353110 hasConceptScore W2259353110C2129575 @default.
- W2259353110 hasConceptScore W2259353110C23123220 @default.
- W2259353110 hasConceptScore W2259353110C2781252014 @default.
- W2259353110 hasConceptScore W2259353110C40077939 @default.
- W2259353110 hasConceptScore W2259353110C41008148 @default.
- W2259353110 hasConceptScore W2259353110C511149849 @default.
- W2259353110 hasConceptScore W2259353110C5655090 @default.
- W2259353110 hasConceptScore W2259353110C69075417 @default.
- W2259353110 hasConceptScore W2259353110C75684735 @default.
- W2259353110 hasConceptScore W2259353110C80444323 @default.
- W2259353110 hasConceptScore W2259353110C93518851 @default.
- W2259353110 hasLocation W22593531101 @default.
- W2259353110 hasOpenAccess W2259353110 @default.
- W2259353110 hasPrimaryLocation W22593531101 @default.
- W2259353110 hasRelatedWork W1545642291 @default.
- W2259353110 hasRelatedWork W1972314359 @default.
- W2259353110 hasRelatedWork W2145379273 @default.
- W2259353110 hasRelatedWork W2511687357 @default.
- W2259353110 hasRelatedWork W2624362782 @default.
- W2259353110 hasRelatedWork W2947363182 @default.
- W2259353110 hasRelatedWork W2950921705 @default.
- W2259353110 hasRelatedWork W2958391849 @default.
- W2259353110 hasRelatedWork W2973529529 @default.
- W2259353110 hasRelatedWork W3183115008 @default.
- W2259353110 hasRelatedWork W2846877411 @default.
- W2259353110 isParatext "false" @default.
- W2259353110 isRetracted "false" @default.
- W2259353110 magId "2259353110" @default.
- W2259353110 workType "article" @default.