Abstract In this paper, we study the complexity of the chip-firing reachability problem. We show that for Eulerian digraphs, the reachability problem can be decided in strongly polynomial time, even ...

A University of Washington research project that tracks down Internet black holes—places where packets vanish—has created a live map system which shows the locations of these anomalies and updates ...

The state space explosion problem means that the state space of Petri nets (PNs) grows exponentially with PNs’ size. Even the fundamental reachability problem is still an NP-Hard problem in general.

Apple is working on a fix for a Reachability bug that prevents the new iOS 11 Cover Screen with Notifications from being accessible from the middle of the iPhone's display, Apple engineering chief ...

As the Log4j vulnerability demonstrated in a visceral way, open source code is inextricable from modern software. Developers incorporate components, snippets, and libraries from sources like GitHub ...

We all remember the Verizon Wireless commercials that asked “Can you hear me now?” over and over again from different locations around the world. While the ad campaign may have been repetitive, ...