Neo4j

I am trying to compute a page rank with the code below be I keep getting the error: message: Type mismatch: expected String but was Map   result=gds.run_cypher(''' CALL gds.pageRank.stream({ nodeQuery:'MATCH (d:Doc) WHERE d.id IN $isletter OR ((d) ...

Please how do I compute the cosine similarity between two text in Neo4j? I tried using the approach below but the function does not exist. On the Neo4j page I only see how to compute the cosine similarity between two numeric vectors and not text. MA...