Topicrank

**Table 1** parameters parameter description
Parameter	Mandatory	Description	Type	Value Range	Default Value
sources	Yes	Vertex ID. You can specify multiple node IDs in CSV format and separate them with commas (,).	String	Currently, a maximum of 100000 IDs are allowed.	-
actived_p	No	Initial weight of the sources vertex.	Double	The value ranges from 0 to 100000.	1
default_p	No	Initial weight of a non-source vertex	Double	The value ranges from 0 to 100000.	1
filtered	No	Whether to filter results	Boolean	The value can be true or false.	false
only_neighbors	No	Whether to display only the neighboring vertices of the sources	Boolean	The value can be true or false.	false
alpha	No	Weight coefficient	String	The value is a real number between 0 and 1.	0.85
convergence	No	Convergence	String	The value is a real number between 0 and 1.	0.00001
max_iterations	No	Maximum iterations	Integer	An integer ranging from 1 to 2147483647. For frontend calls, the range is [1,2000].	1000
directed	No	Whether the edges are directed	Boolean	The value can be true or false.	true
num_thread	No	Number of threads	Integer	The value ranges from 1 to 40.	4

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