Claudio Vairo

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Papers by Claudio Vairo

Deep Learning for Decentralized Parking Lot Occupancy Detection

by Claudio Vairo and Fabio Carrara

Expert Systems with Applications, 2016

Car parking occupancy detection using smart camera networks and Deep Learning

by Claudio Vairo and Fabio Carrara

2016 IEEE Symposium on Computers and Communication (ISCC), 2016

A Benchmark Dataset for Human Activity Recognition and Ambient Assisted Living

Advances in Intelligent Systems and Computing, 2016

A cognitive robotic ecology approach to self-configuring and evolving AAL systems

Engineering Applications of Artificial Intelligence, 2015

Towards Data Management in the Sensor Web: the MaD-WiSe System

Distributed Neural Computation over WSN in Ambient Intelligence

Advances in Intelligent Systems and Computing, 2013

Optimizing network-side queries with timestamp-join in wireless sensor networks

IECON Proceedings (Industrial Electronics Conference), 2009

ABSTRACT This paper proposes a new method for optimizing in-network distributed queries that perf... more ABSTRACT This paper proposes a new method for optimizing in-network distributed queries that perform join of data produced simultaneously by different sensors in a wireless sensor network. We adopt a modified version of the standard join operator that relates tuples having the same timestamp, and an optimized version of it, which provides on-demand, pull-mode, data acquisition from sensors. The optimizer uses an algebraic approach based on transformation rules and ordering of operators to generate and chose a query plan that reduces the query execution cost in terms of consumed energy. We implemented these join operations in a query processor for mica-class sensors and we performed extensive tests to prove that our approach may reduce energy required to process a long running query, by order of magnitudes, with respect to non optimized query plans.

Modeling detection and tracking of complex events in wireless sensor networks

Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics, 2010

Current approaches to the query of wireless sensor networks address specific sources such as indi... more Current approaches to the query of wireless sensor networks address specific sources such as individual sensors or transducers. We believe that it is important to have a higher level mechanism of abstraction for querying a sensor network. In this work we aim at querying complex events, where such an event is modeled as a condition computed over a complex aggregate

Efficient detection of composite events in Wireless Sensor Networks: Design and evaluation

2011 IEEE Symposium on Computers and Communications (ISCC), 2011

Abstract One of the most promising use of Wireless Sensor Networks is in the field of the event w... more Abstract One of the most promising use of Wireless Sensor Networks is in the field of the event warning applications. However, depending on the communication scheme adopted, the amount of the exchanged data may be huge, with large energy consumption. In this paper we study the efficiency of two approaches to composite event detection in Wireless Sensor Networks. The first solution approaches the problem by collecting all the available information in a single sensor that performs the real event detection. If the area covered by ...

Dynamic Tracking of Composite Events in Wireless Sensor Networks

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 2013

MaD-WiSe: a distributed stream management system for wireless sensor networks

by Claudio Vairo and Giuseppe Amato

Wireless sensor networks (WSN) are composed of several sensors having limited memory, processing ... more Wireless sensor networks (WSN) are composed of several sensors having limited memory, processing power, communication bandwidth, and energy, which cooperate in performing a given task. The use of the database paradigm has emerged in the last few years as a viable solution to manage data in such a context. In this paper we present the MaD-WiSe system, a distributed query processing framework that moves the processing of the query into the network. MaD-WiSe reconsiders various aspects related to database system design and it reinterprets them according to the WSN constraints and requirements. In particular it considers the aspects related to the definition of a query language to formalize the queries, a stream model to manage data acquired by the sensors, a query algebra to define the operators that actually perform the query, and energy efficiency and query optimization strategies for saving energy.

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When Wireless Sensor Networks Meet Robots

by Giuseppe Amato and Claudio Vairo

Abstract: Enabling integrated robots and Wireless Sensor Network (WSN) applications is an importa... more Abstract: Enabling integrated robots and Wireless Sensor Network (WSN) applications is an important and extended challenge for both robotics and WSN research & development and a key enabler for a range of advanced hybrid applications, such as environmental monitoring and Ambient Assisted Living (AAL). This paper describes a work-in-progress WSN/robots communication framework that is being purposefully built to facilitate the constructions of robotic ecologies, ie networks of heterogeneous computational nodes ...

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