of query T=Average number of tokens, B=Bucket size Indexing Step Time Complexity 𝑂(𝐿·𝑁·𝑇 ) => O(N) in practice since L and H are small constants. L=Number of LSH, N=Number of query, T=Average number of tokens Retrieval Step Time Complexity O(𝐿T·𝐵L) => O(1) in practice since L,B, and T are small constants. (LT=calculating the hash values, BL=k-selection in the combined sets) Memory Complexity 𝑂(L·𝑁B·B) => memory usage is not increasing with the size of the cache (NB=Number of buckets in LSH)