David Huffman's 1952 algorithm reveals a deep puzzle: the more predictable a message source, the shorter its optimal code. Shannon's entropy isn't just a measure of uncertainty, it's the hard ceiling ...

Abstract: UWB TDoA localization accuracy degrades in industrial non-line-of-sight (NLOS) environments, where traditional methods of excluding NLOS links are often infeasible and degrade geometric ...

Despite the rapid adoption of LLM chatbots, little is known about how they are used. We document the growth of ChatGPT’s consumer product from its launch in November 2022 through July 2025, when it ...

Abstract: We propose quantum Chase decoding as an approximation to degenerate quantum maximum-likelihood decoding, by efficiently searching for Pauli errors and ...

Code-based cryptography employs error-correcting codes as the basis for secure public-key schemes, leveraging the intrinsic difficulty of decoding a random linear code. The foundational McEliece ...