Latest posts https://www.tuned.org.uk/ Comparative semantic probing: dual-space analysis on transformer weights and embeddings Thu, 11 Jun 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/020_arrowspace_semantic_basins_part2/ https://www.tuned.org.uk/posts/020_arrowspace_semantic_basins_part2/ Notebook walkthrough: using Rayleigh energy as a landscape signal for high-dimensional embedding spaces Tue, 02 Jun 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/019_arrowspace_local_minima_walkthrough/ https://www.tuned.org.uk/posts/019_arrowspace_local_minima_walkthrough/ Compare 384-dim embeddings with the new 1024-dim embeddings Tue, 10 Mar 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/018_arrowspace_and_higher_dimensions_embeddings/ https://www.tuned.org.uk/posts/018_arrowspace_and_higher_dimensions_embeddings/ Testing all aspects of Graph Wiring on semantic data — why geometry fails, measuring the win with MRR-Top0 Sun, 08 Mar 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/017_arrowspace_search_final_assessment/ https://www.tuned.org.uk/posts/017_arrowspace_search_final_assessment/ Testing all aspects of Graph Wiring on semantic data — how fast and accurate arrowspace is Tue, 17 Feb 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/016_arrowspace_performance_results/ https://www.tuned.org.uk/posts/016_arrowspace_performance_results/ Training Graph Wiring on the Dorothea dataset — speed, applications, and the connection between Rayleigh score and epiplexity Fri, 13 Feb 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/015_arrowspace_stress-test_on_dorothea_dataset/ https://www.tuned.org.uk/posts/015_arrowspace_stress-test_on_dorothea_dataset/ An hypothesis for arrowspace as minimal surface approximator Thu, 05 Feb 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/014_arrowspace_and_string_theory_minimal_surfaces/ https://www.tuned.org.uk/posts/014_arrowspace_and_string_theory_minimal_surfaces/ Training notes for a 30M-class TauGPT run including the data pipeline, validation routing, and stabilization knobs Sun, 18 Jan 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/013_the_topological_transformer_training_tauformer/ https://www.tuned.org.uk/posts/013_the_topological_transformer_training_tauformer/ Domain memory injected directly inside self-attention via a persistent Graph Laplacian Mon, 05 Jan 2026 00:00:00 +0000 https://www.tuned.org.uk/posts/012_topological_transformer_tauformer_domain_memory_in_attention/ https://www.tuned.org.uk/posts/012_topological_transformer_tauformer_domain_memory_in_attention/ AI safety through topology-aware, energy-informed retrieval that separates stable facts from risky intuitions Wed, 26 Nov 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/011_safer_LLMs_require_more_open_search_building_AI_memory_layer/ https://www.tuned.org.uk/posts/011_safer_LLMs_require_more_open_search_building_AI_memory_layer/ Test-bed milestone for a unified vector, graph, and key-value engine built on spectral indexing Wed, 12 Nov 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/010_game_changer_unifying_vectors_and_features_graphs/ https://www.tuned.org.uk/posts/010_game_changer_unifying_vectors_and_features_graphs/ Deep dive into a Rust implementation of a decoder-only transformer inspired by Karpathy's nanoGPT Wed, 29 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/009_llms_nanogpt_model_in_rust/ https://www.tuned.org.uk/posts/009_llms_nanogpt_model_in_rust/ Milestone release completes the search-matching-ranking pipeline with stabilized energymaps module Wed, 29 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/008_arrowspace_proof_of_concept_energy_informed_search/ https://www.tuned.org.uk/posts/008_arrowspace_proof_of_concept_energy_informed_search/ Rust implementation of DeepSeek-OCR compression achieves 10x token reduction Fri, 24 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/007_deepseek_optical_compression_rust/ https://www.tuned.org.uk/posts/007_deepseek_optical_compression_rust/ Define a new score that generalizes MRR to the entire top-k by combining list metrics with topology signals Fri, 24 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/006_a_score_for_topological_quality/ https://www.tuned.org.uk/posts/006_a_score_for_topological_quality/ Version 0.16.0 is out with encouraging results for arrowspace as one of the fastest ANN algorithms available in the open Fri, 17 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/005_fast_approximate_nearest_neighbours/ https://www.tuned.org.uk/posts/005_fast_approximate_nearest_neighbours/ Evaluation on a CVE corpus spanning 1999 to 2025 shows spectral modes preserve head agreement while enhancing long-tail relevance Mon, 13 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/004_beyond_cosine_similarity/ https://www.tuned.org.uk/posts/004_beyond_cosine_similarity/ This release rethinks how arrowspace builds and queries graph structure from high-dimensional embeddings Fri, 10 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/003_performance_improvements/ https://www.tuned.org.uk/posts/003_performance_improvements/ ArrowSpace has evolved with three critical enhancements that improve both performance and analytical capabilities Mon, 06 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/002_early_october_improvements/ https://www.tuned.org.uk/posts/002_early_october_improvements/ Vector databases have become the backbone of modern AI workflows. Discover how ArrowSpace introduces energy-informed indexing through taumode Wed, 01 Oct 2025 00:00:00 +0000 https://www.tuned.org.uk/posts/001_energy_informed_db/ https://www.tuned.org.uk/posts/001_energy_informed_db/