Modular Path Queries with Arithmetic

Jakub Michaliszyn, Jan Otop, Piotr Wieczorek
2021 Logical Methods in Computer Science  
We propose a new approach to querying graph databases. Our approach balances competing goals of expressive power, language clarity and computational complexity. A distinctive feature of our approach is the ability to express properties of minimal (e.g. shortest) and maximal (e.g. most valuable) paths satisfying given criteria. To express complex properties in a modular way, we introduce labelling-generating ontologies. The resulting formalism is computationally attractive - queries can be
more » ... ed in non-deterministic logarithmic space in the size of the database.
doi:10.46298/lmcs-17(3:27)2021 fatcat:zu3e4yiv5jecpktc52foici4xi