PersonalRank

**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 between 0 and 1, excluding 0 and 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.

For details about algorithm iterations and convergence, see Iterations and Convergence of PageRank.

**Table 2** response_data parameter description
Parameter	Type	Description
source	String	-
personalrank	List	PersonalRank value of each vertex. The format is as follows: [{vertexId:rankValue},...], where vertexId is of the string type. rankValue is of the double type.