Loading...
Please wait, while we are loading the content...
Similar Documents
A Path Querying Language for Federation of RDF and Relational Database
| Content Provider | ACM Digital Library |
|---|---|
| Author | Feng, Zhiyong Zhang, Jiahui Zhang, Xiaowang |
| Abstract | In this paper, we present a federated path querying language (FPQ) as itself an extension of the nested regular path querying language with adding an axis operator to support the federation of RDF dataset and relational database. We have proven that FPQ has more expressive power than the nested regular path query language (not to mention regular path querying language). It enjoys the same computational complexity as the regular path query language and its additional expressivity can be exactly used to characterize the conjunction and federation of nested regular path queries. Moreover, we discuss the expressivity of various fragments of FPQ and implement FPQ. Finally, we present an application scenario related to the car-pooling services in real life. |
| Starting Page | 41 |
| Ending Page | 46 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781450349833 |
| DOI | 10.1145/3068839.3068840 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2017-05-14 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Federated path query Rdf Path query Relational database |
| Content Type | Text |
| Resource Type | Article |
