Abstract: A basic relationship weight between each pair of objects in an object group is adjusted to obtain a new object relationship weight, where the object group includes a plurality of objects. For each object in the object group, a transmissibility value is determined based on the new object relationship weight associated with the object. An activeness value is determined based on a service activity parameter associated with the object in a service. An influence value is determined based on the activeness value and the transmissibility value, where the influence value indicates a degree of influence of the object to one or more objects in the object group. At least one object is selected from the object group as a target object, where the influence value associated with the at least one object is greater than a predetermined threshold.

Abstract: A basic relationship weight between each pair of objects in an object group is adjusted to obtain a new object relationship weight, where the object group includes a plurality of objects. For each object in the object group, a transmissibility value is determined based on the new object relationship weight associated with the object. An activeness value is determined based on a service activity parameter associated with the object in a service. An influence value is determined based on the activeness value and the transmissibility value, where the influence value indicates a degree of influence of the object to one or more objects in the object group. At least one object is selected from the object group as a target object, where the influence value associated with the at least one object is greater than a predetermined threshold.