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The Theory of Industrial Organization

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Deciding DFA-Primality is NP-Hard

cs.FL · 2026-05-07 · unverdicted · novelty 8.0

Deciding DFA primality is NP-hard, established by reduction from propositional satisfiability using a characterization of primality for a relevant class of automata.

The World's Fastest Matching Engine Algorithm

cs.DC · 2026-05-31 · unverdicted · novelty 7.0

Introduces PIN priority queue and neighbor-aware tree operations claiming 32 million order messages per second on one CPU core for trading matching engines.

Characterizing the Expressivity of Local Attention in Transformers

cs.CL · 2026-05-01 · unverdicted · novelty 7.0 · 3 refs

Local attention in fixed-precision transformers introduces a second past operator in linear temporal logic, strictly increasing expressivity over global attention alone, with hybrids being most expressive.

The Evolution of U.S. Retail Concentration

econ.GN · 2022-02-15 · unverdicted · novelty 7.0

Local retail concentration increased almost as much as national concentration from 1992 to 2012, mainly from multi-market firm expansion, and accounts for one-quarter to one-third of the rise in retail gross margins.

Evaluation-driven Scaling for Scientific Discovery

cs.LG · 2026-04-21 · unverdicted · novelty 6.0

SimpleTES scales test-time evaluation in LLMs to discover state-of-the-art solutions on 21 scientific problems across six domains, outperforming frontier models and optimization pipelines with examples like 2x faster LASSO and new Erdos constructions.

Grounding Text Embeddings in Stakeholder Associations

cs.CL · 2026-05-26 · unverdicted · novelty 5.0

The Stakeholder Grounding Exercise shows neural text embeddings are 19-26pp less reliable than human experts at capturing semantic distinctions, with misalignment strongly correlated to poorer clustering performance (ρ=0.9), replicated across Danish policy and US AI domains.

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