Two journal papers have been accepted in the last few weeks:

• A.Băltoiu, Denis C. Ilie-Ablachim, B.Dumitrescu, “Dictionary learning with cone atoms and application to anomaly detection”, Signal Processing
• Denis C. Ilie-Ablachim, A.Băltoiu, B.Dumitrescu, “Sparse representation with Gaussian atoms and its use in anomaly detection”, IEEE Open Journal of Signal Processing

They both contain algorithms for sparse representation and dictionary learning using atoms that are sets instead of vectors. For some classes of anomalies, they obtain better than state-of-the-art detection.