Tigran KhachatryanData scientist based in Helsinki. Writing on networks, spatial data, forecasting and machine learning.https://khachatryan.io/Surus: Safe Agentic Postgres Companionhttps://khachatryan.io/posts/11_introducing_surus/https://khachatryan.io/posts/11_introducing_surus/Sun, 05 Jul 2026 00:00:00 GMTOpen SourcepostgresllmagentsCoherence Without Comprehensionhttps://khachatryan.io/posts/10_coherence_without_comprehension/https://khachatryan.io/posts/10_coherence_without_comprehension/Thu, 17 Jul 2025 00:00:00 GMTMachine LearningllmaiFinnish Startup Ecosystemhttps://khachatryan.io/posts/09_finnish_startup_ecosystem/https://khachatryan.io/posts/09_finnish_startup_ecosystem/Mon, 12 May 2025 00:00:00 GMTData ScienceNetwork SciencefinlandstartupsstatisticsHow to Rick Roll Like a Data Scientist?https://khachatryan.io/posts/08_rick_roll_trajectoids/https://khachatryan.io/posts/08_rick_roll_trajectoids/Tue, 20 Aug 2024 00:00:00 GMTData SciencePythontrajectoidstime series3d printingThe Deadly Silk Road: Global Arms Trade as a Networkhttps://khachatryan.io/posts/07_deadly_silk_road/https://khachatryan.io/posts/07_deadly_silk_road/Tue, 30 Jul 2024 00:00:00 GMTNetwork ScienceSpatial Data Sciencenetwork analysisarms tradevisualizationHow the CIA Used Network Science to Win Warshttps://khachatryan.io/posts/06_cia_network_science/https://khachatryan.io/posts/06_cia_network_science/Tue, 16 Jul 2024 00:00:00 GMTNetwork SciencePythonnetwork analysisgraph theoryhistoryThe Finnish Linehttps://khachatryan.io/posts/05_the_finnish_line/https://khachatryan.io/posts/05_the_finnish_line/Mon, 17 Jul 2023 00:00:00 GMTData SciencefinlandimmigrationstatisticsWolt Delivery Network Analysishttps://khachatryan.io/posts/04_wolt_delivery_network/https://khachatryan.io/posts/04_wolt_delivery_network/Mon, 14 Feb 2022 00:00:00 GMTSpatial Data SciencePythonhelsinkiwoltnetwork analysispythonTime Series Forecasting with SARIMAXhttps://khachatryan.io/posts/03_sarimax/https://khachatryan.io/posts/03_sarimax/Sat, 12 Feb 2022 00:00:00 GMTData SciencePythonTime SerieswoltpythonstatsmodelsCities, Maps, Dashboardshttps://khachatryan.io/posts/02_cities_maps_dashboards/https://khachatryan.io/posts/02_cities_maps_dashboards/Mon, 27 Sep 2021 00:00:00 GMTSpatial Data SciencePythonOpen SourcehelsinkipythonplotlyflaskHelsinki City Bikes Network Analysishttps://khachatryan.io/posts/01_helsinki_city_bikes_network_analysis/https://khachatryan.io/posts/01_helsinki_city_bikes_network_analysis/Mon, 17 May 2021 00:00:00 GMTSpatial Data SciencePythonhelsinkicity bikesnetwork analysispythonHelsinki City Bikes EDAhttps://khachatryan.io/posts/00_helsinki_city_bikes_eda/https://khachatryan.io/posts/00_helsinki_city_bikes_eda/Tue, 11 May 2021 00:00:00 GMTSpatial Data SciencePythonhelsinkicity bikesEDApython