Dataset description
This Figure illustrates a toy graph in which nodes {n1, …, n12} model products, machines, sensors, self-driving vehicles (S.D. vehicles) and employees. Whereas, relationships {r1, …, r14} represent the connections between nodes. All nodes, relationships and properties are assigned with a set of valid time intervals such as each validity interval defined by its starting and ending time instants represents the time during which a graph entity was valid. Note that, time intervals of nodes are omitted and considered to be equal to [t1, ∞).
For instance, a product passes through different manufacturing machines which is translated in the temporal graph by an isIn relationship. A machine is monitored by sensors which is translated by a connectsTo relationship. An employee maintains machines regularly. An S.D. vehicle transfers products between machines. A relationship isCloseTo is created between S.D. vehicles to indicate their proximity. Furthermore, the measurements collected by sensors are represented as pairs of a values and time validity intervals to indicate the time when the value was valid.
Temporal queries
