Alago R&D {{SITE_URL}}/ Research notes from Alago: knowledge graphs, ontologies, and reasoning systems for the German Pre-Construction industry. Half-formed ideas, technical writeups, benchmarks, and the occasional opinion. en © 2026 Alago GmbH, Munich rd@alago.ai (Alago R&D) rd@alago.ai (Alago R&D) Sat, 25 Apr 2026 14:32:00 +0000 1440 {{SITE_URL}}/assets/alago-full.svg Alago R&D {{SITE_URL}}/ A working vocabulary for the Pre-Construction office (v0.4) {{SITE_URL}}/vocabulary-v0-4.html {{SITE_URL}}/vocabulary-v0-4.html Wed, 22 Apr 2026 09:00:00 +0000 D. Lazarenko Ontology Eighteen months of mapping the implicit ontology of the Projektsteuerer's protocols. v0.4 — and the dozen edge cases that broke v0.3. Graph-RAG vs. vector retrieval on technical specs {{SITE_URL}}/graph-rag-vs-vector-retrieval.html {{SITE_URL}}/graph-rag-vs-vector-retrieval.html Tue, 14 Apr 2026 09:00:00 +0000 M. Winter Method On 41,000 DIN-cited paragraphs, structured retrieval beats embedding similarity by 31% on multi-hop queries — and the gap widens with question depth. Time on a project is not a number {{SITE_URL}}/time-on-a-construction-site.html {{SITE_URL}}/time-on-a-construction-site.html Mon, 09 Feb 2026 09:00:00 +0000 L. Hoffmann Field note "Bis nächste Woche" in a Jour-fixe-Protokoll resolves against weather, supplier delays, and the political will of the Bauleiter. Notes from a winter shadowing a Projektsteuerer.