Searching for Spatio-Temporal-Keyword Patterns in Semantic Trajectories. - Fragkiskos Gryllakis; Nikos Pelekis; Christos Doulkeridis; Stylianos Sideridis; Yannis Theodoridis (IDA, 2017)

Spatio-Temporal-Keyword Pattern Queries over Semantic Trajectories with Hermes@Neo4j. - Fragkiskos Gryllakis; Nikos Pelekis; Christos Doulkeridis; Stylianos Sideridis; Yannis Theodoridis (EDBT, 2018)

Social Spatio-temporal Keyword Pattern (S²KP) Queries in Multiple Aspect Trajectories Databases. - Fragkiskos Gryllakis; Nikos Pelekis; Christos Doulkeridis; Iraklis Varlamis; Yannis Theodoridis (SSDBM, 2022)