It is seen that different domains give similar importance values, which indirectly shows that the proxy can approximately identify the common general knowledge.
For each domain i , we compare its importance vector with the importance vector of every other domain, and then average the cosine similarities to get the value for domain i . We get 0.92 for Restaurant, the same 0.91 for ACL, AI, and Phone, 0.89 for PubMed and 0.92 for Camera. We see that different domains give similar importance values, which indirectly shows that our proxy can approximately identify the common general knowledge.