Abstract: A method is disclosed. The method includes processing a group interaction request for an interaction involving a group. Better assurance for the interaction is provided by providing a one-time password that has a number of portions that are sent to a plurality of user devices. The portions are received and one user device may concatenate the portions to form the one-time password. It may then be entered to authenticate the interaction. Other examples include the use of an authorization request message that is authorized for an initial value. Later, separate authorization request messages with different credentials may be transmitted for different users in the group.

Abstract: A computer-implemented method for relaxing queries on a queried connection graph can include obtaining, by a computing system including one or more computing devices, a connected graph. The computer-implemented method can include evaluating, by the computing system, a first set of connected components of the connected graph with respect to a first query set. The first query set can include one or more query criteria. The query criteria can include one or more attributes associated with operating an autonomous vehicle. The computer-implemented method can include determining, by the computing system, one or more relaxed query sets based at least in part on the first query set. The computer-implemented method can include evaluating, by the computing system, a second set of connected components of the connected graph with respect to the one or more relaxed query sets, the connected graph being associated with autonomous vehicle operation within a geographic area.