PersonalRank (1.0.0)

**Table 1** parameters parameter description
Parameter	Mandatory	Type	Description
source	Yes	String	Node ID
alpha	No	Double	Weight coefficient (also called damping coefficient). The value range is (0, 1). The default value is 0.85.
convergence	No	Double	Convergence The value range is between 0 and 1, excluding 0 and 1. The default value is 0.00001.
max_iterations	No	Integer	Maximum iterations. An integer ranging from 1 to 2147483647. For frontend calls, the range is [1, 2000]. The default value is 1000.
num_thread	No	Integer	Number of concurrent threads. The value ranges from 1 to 40. If the value is less than 1, it is automatically set to 1. If the value is greater than 40, it is automatically set to 40. The default value is 4.
directed	No	Boolean	Whether to consider the edge direction. The value can be true or false. The default value is true.
weight	No	String	Null or string Null: The default weight and distance of edges are 1. String: The property of the corresponding edge is the weight. If the edge does not have a property, the weight is 1 by default. NOTE: The weight of an edge must be greater than 0.

For how to adjust the values of max_iterations and convergence, see Iterations and Convergence of PageRank.

**Table 2** response_data parameter description
Parameter	Type	Description
source	String	-
results	List	PersonalRank value of each node, in the format of [{"id":vertexId,"personalrank":rankValue},...], where, vertexId is of the string type. rankValue is of the double type.