Enrico Sozio
Research Subjects
Research Interests
Enrico Sozio has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Antonino Maria Rizzo
Politecnico di Milano
1 shared publication - Cesare Alippi
Dipartimento di Elettronica e Informazione, Politecnico di Milano, Milan, Italy
1 shared publication - Davide Rutigliano
Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milano, Italy
1 shared publication - Giacomo Boracchi
Politecnico di Milano, Milan, Italy
1 shared publication - Luca Magri
Politecnico di Milano
1 shared publication - Pietro Invernizzi
Cisco Photonics, Cisco Systems, Vimercate, Italy
1 shared publication
Latest Publications
- Open Access
- 5 August 2022
- Published by Springer Nature in Neural Computing and Applications
- Vol. 34 (22) , 19655-19673
Known and unknown event detection in OTDR traces by deep learning networks
Optical fiber links are customarily monitored by Optical Time Domain Reflectometer (OTDR), an optoelectronic instrument that measures the scattered or reflected light along the fiber and returns a signal, namely the OTDR trace. OTDR traces are typically analyzed by experts in laboratories or by hand-crafted algorithms running in embedded systems to localize critical events occurring along the fiber. In this work, we address the problem of automatically detecting optical events in OTDR traces through a deep learning model that can be deployed in embedded systems. In particular, we take inspiration from Faster R-CNN and present the first 1D object-detection neural network for OTDR traces. Thanks to an ad-hoc preprocessing pipeline for OTDR traces, we can also identify unknown events, namely events that are not represented in training data but that might indicate rare and unforeseen situations that need to be reported. The resulting network brings several advantages with respect to existing solutions, as these typically classify fixed-size windows of OTDR traces, thus are less accurate in the localization. Moreover, existing solutions do not report events that cannot be safely associated to any label in the training set. Our experiments, performed on real OTDR traces, show very promising performance, and can be directly executed on embedded OTDR devices.
- 5 August 2022
- Published by Springer Nature in Neural Computing and Applications
- Vol. 34 (22) , 19655-19673
Open AccessKnown and unknown event detection in OTDR traces by deep learning networks
Optical fiber links are customarily monitored by Optical Time Domain Reflectometer (OTDR), an optoelectronic instrument that measures the scattered or reflected light along the fiber and returns a signal, namely the OTDR trace. OTDR traces are typically analyzed by experts in laboratories or by hand-crafted algorithms running in embedded systems to localize critical events occurring along the fiber. In this work, we address the problem of automatically detecting optical events in OTDR traces through a deep learning model that can be deployed in embedded systems. In particular, we take inspiration from Faster R-CNN and present the first 1D object-detection neural network for OTDR traces. Thanks to an ad-hoc preprocessing pipeline for OTDR traces, we can also identify unknown events, namely events that are not represented in training data but that might indicate rare and unforeseen situations that need to be reported. The resulting network brings several advantages with respect to existing solutions, as these typically classify fixed-size windows of OTDR traces, thus are less accurate in the localization. Moreover, existing solutions do not report events that cannot be safely associated to any label in the training set. Our experiments, performed on real OTDR traces, show very promising performance, and can be directly executed on embedded OTDR devices.