Probably the input query does not follow the pre-defined format. Do you mind opening an issue on GitHub?

Hi there, the demo is ready. Check it out!

https://huggingface.co/spaces/Spico/paper-hero

Thanks very much for your reply.

I didn't evaluate the query time. This tool doesn't download the whole arxiv dataset, it just calls the official API. So time is up to the web connection. But it wouldn't take a long time to execute a query.

Yes, absolutely! There are some other things to do before making an online demo, e.g. merging the current two-stage searching into one step. I'm working on it. Thanks again for the advice!