Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

RDF Keyword Search 螢幕截圖

iPad

iPhone

About RDF Keyword Search

RDF (Resource Description Framework) has been used as a standard for the representation of
web information. RDF can be modelled as a graph where vertices are entities and an edge is a
relationship between two entities. In recent years, the W3C Linking Open Data project and the
Linked Open Data 2 (LOD2) project have integrated data entries from many web sources, including
Wikipedia, forming very large domains such as DBpedia with a billion RDF triples. Keyword search
on such datasets is very useful for many web users. Typically a user searches by keywords. Given
a query with multiple keywords, one possible definition of an answer is a set of vertices in the RDF
graph that contains the keywords, where one vertex is the root, so that the total distance of other
vertices from the root is the smallest. User may specify a small integer k to ask for the top-k answers, meaning the top k vertex sets that minimize the total distance. There are other possible definitions for the answer sets, which also involve distance querying given two vertices.

This app answers RDF data querying, and the answers are computed depending on the computation of distances between vertices in the RDF graph.