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SemFacet Poster


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Semantic Faceted Search with SemFacet

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SemFacet Poster

  1. 1. Semantic Faceted Search! B.Cuenca Grau, E. Kharlamov, S. Marciuska, D. Zheleznyakov Oxford University Marcelo Arenas PUC Chile! Find US Presidents whose Children Graduated from Harvard or Stanford! Faceted Search citizen of has child has child president Search Kermit Roosevelt I MC (October 10, 1889 – June 4, 1943) was a son of U.S. President Theodore Roosevelt. He was an explorer on two continents with his father, a graduate of Harvard University, a soldier serving in two world wars, with both the British and U.S. Armies, a businessman, and a writer. He fought a lifelong battle with depression and alcoholism, and eventually committed suicide. isCitezenOf SemFacet System: Faceted Search over RDF Data and OWL Ontologies! Faceted Search! § Search within one set of documents § Search by seGng a filter over docs § Documents are annotated with labels § Labels are not annotated Input Documents Faceted Filters Output documents Semantic Faceted Search! § Search over -­‐ RDF data -­‐ OWL axioms § Several filters can be set independently § Doc-­‐to-­‐Label filter: -­‐ to narrow down by specifying labels § Doc-­‐to-­‐Doc filter: -­‐ to narrow down by specifying related dos § Different output opRons -­‐ “focus” on the set you need § Based on solid formal theory -­‐ via translaRon to SPARQL Ÿ Main features -­‐ AutomaRc generaRon of f-­‐search interfaces over RDF data and OWL 2 ontologies -­‐ In memory -­‐ Efficient on millions of triples Ÿ Flexible configuraRon -­‐ Interchangeable triple stores -­‐ Configurable snippets -­‐ Offline and online reasoning Enrichment with Seman.cs HTML RDF K. Roosevelt B. Clinton T. Roosevelt J. F. Kennedy C. Kennedy C. Clinton has child grad. from B. Clinton C. Clinton T. Roosevelt K. Roosevelt grad. from J. F. Kennedy C. Kennedy grad. from visited grad. from grad. from grad. from § (Web) documents are for human understanding § RDF brings machine readable semanRcs § SPARQL is the RDF query language § SemFacet: faceted search over RDF for naïve users Docs Annot aRons Our Goal! Faceted Filters Date of birth XIX century ✔ XX century Alma mater Harvard Uni ✔ Georgetown Uni Has child ✔ ANY Chelsea Clinton Kermit Roosevelt Caroline Kennedy Alma mater Harvard Uni ✔ Stanford Uni Next generaRon faceted search that § allows to navigate between several interconnected sets of docs § is a natural extension of the classical faceted search § is computaRonally efficient Quentin Roosevelt (November 19, 1897 – July 14, 1918) was the youngest and favorite son of President Theodore Roosevelt. Family and friends agreed that Quentin had many of his father's positive qualities and few of the negative ones. Inspired by his father and siblings, he joined the United States Army Air Service where he became a pursuit pilot during World War I. Navigation Map hasChild person isGraduatedFrom Harvard University United States + Categories lake village + person philanthropist highjacker More Options + hasChild governor person hasWonPrize Croix de guerre Silver Star + isCitezenOf United States Chelsea Victoria Clinton (born February 27, 1980) is the only child of former U.S. President Bill Clinton and former U.S. Secretary of State Hillary Rodham Clinton. She is a special correspondent for NBC News and works with the Clinton Foundation and Clinton Global Initiative.Clinton was born in Little Rock, Arkansas, during her father's first term as Governor. isGraduatedFrom Harvard University Tulane University Archibald Bulloch Archie Roosevelt (April 9, 1893 – October 13, 1979), the fifth child of U.S. President Theodore Roosevelt, was a distinguished U.S. Army officer and commander of U.S. forces in both World War I and II. In both conflicts he was wounded. He earned the French Croix de guerre, Silver Star with Oak Leaf Cluster and the Purple Heart with Oak Leaf Cluster. Stanford University SemFacet Graduated From Universities People citizen of Countries located in Faceted Query Interface Answers as Snippets Presentation Layer Application Layer Data Layer Facet Generator Query Converter Snippet Generator Triple Store: Ontology Data Keyword Based Search KBS Engine Inverted Index e.g. DBpedia Abstracts RDFOX, Pogoda, Hermit, Sesame