This is mentioned on the first page of the paper: > Building on theoretical work by Dietzfelbinger and Walzer [8], we propose a novel practical approach, the b

This is mentioned on the first page of the paper: > Building on theoretical work by Dietzfelbinger and Walzer [8], we propose a novel practical approach, the binary fuse filters. They are conceptually similar to xor filters, and they rely on nearly the same simple code.