ValueError: max() arg is an empty sequence about ranx HOT 7 CLOSED

I suspect your filtered_relevance_map is not valid.
Can you please post a print of it?

from ranx.

I suspect your filtered_relevance_map is not valid. Can you please post a print of it?
filtered_relevance_map:

ranking:

from ranx.

What the code does is simply this:

doc_ids = [list(doc.keys()) for doc in qrels.values()]
max_len = max(len(y) for x in doc_ids for y in x)

The code finds the max string length of the doc ids in the dictionary to reduce memory consumption.

You should be able to find the issue by checking what happens with your filtered_relevance_map in place of qrels.

Please, let me what you find out.

from ranx.

PS: doc variable name in the list comprehension is probably a wrong name. It should be q or query.

from ranx.

What the code does is simply this:

doc_ids = [list(doc.keys()) for doc in qrels.values()]
max_len = max(len(y) for x in doc_ids for y in x)

The code finds the max string length of the doc ids in the dictionary to reduce memory consumption.

You should be able to find the issue by checking what happens with your filtered_relevance_map in place of qrels.

Please, let me what you find out.

I can't see any problem since I just replaced doc with label and query with text and concatenated it with their ids.

from ranx.

I can't help you without reproducible code.
The best I can do is guessing.
I never encountered such a problem.

The problem should lay in this line:

doc_ids = [list(doc.keys()) for doc in qrels.values()]

doc.keys() is probably empty. That should be why the next line throws the exception:

ValueError: max() arg is an empty sequence

Have you checked if those two lines of code (isolated from ranx) raise the exception?

from ranx.

Closing for inactivity.

from ranx.