ET-SDP: Enhancing Code Embeddings with Effort-Related and Test Coverage Metrics for Improved Software Defect Prediction. Ioan-Gabriela Chelaru, Gabriela Czibula, Zsuzsanna Onet-Marian, Istvan-Gergely Czibula. In: Acta Universitatis Sapientiae, Informatica, Vol. 18, 24 August 2026, DOI: 10.1007/s44427-026-00038-3.