Dr Geoff V. Merrett
www.geoffmerrett.co.uk
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Best Paper Award at IJCAI 2013

15th July 2013

Davide Zilli receiving the award
Davide Zilli receiving the award
Our paper titled "A hidden Markov model-based acoustic cicada detector for crowdsourced smartphone biodiversity monitoring" received the award for Outstanding Student Paper at the International Joint Conference for Artificial Intelligence (IJCAI), 2013. The conference was held in Beijing, China, and the paper was presented by Davide Zilli.

Abstract: Automated acoustic recognition of species aims to provide a cost-effective method for biodiversity monitoring. This is particularly appealing for detecting endangered animals with a distinctive call, such as the New Forest cicada. To this end, we pursue a crowdsourcing approach, whereby the millions of visitors to the New Forest will help to monitor the presence of this cicada by means of a smartphone app that can detect its mating call. However, current systems for acoustic insect classification are aimed at batch processing and not suited to a real-time approach as required by this system, because they are too computationally expensive and not robust to environmental noise. To address this short-coming we propose a novel insect detection algorithm based on a hidden Markov model to which we feed as a single feature vector the ratio of two key frequencies extracted through the Goertzel algorithm. Our results show that this novel approach, compared to the state of the art for batch insect classification, is much more robust to noise while also reducing the computational cost.

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Other Articles

Alex Presents Research at SenseCam 2012
3rd April 2012
Alex presents his research, and also chairs a session
Alex Wood presented our research on 'DejaView' at the recent 2012 SenseCam Symposium. DejaView is a system designed to help sufferers of memory loss, in particular by allowing them to receive relevant real-time feedback. In the current demonstrator, this feedback gives the wearer information on who they are looking at - for example their name, relationship, when they last saw them etc. Alex was also awarded a bursary by the conference organisers to attend the symposium, and chaired one of the se... [more]

Davide Reaches Out for Cicadas
9th June 2013
Davide at New Forest BioBlitz, 2013
Davide Zilli has had a summer of presentations and outreach activities, to engage the public in his research into the use of smartphones in biodiversity monitoring.The New Forest Cicada is the only cicada native to the UK and, having not been seen for many years, is at great danger of becoming extinct.Davide's research is investigating whether or not the millions of annual visitors to the New Forest National Park can be turned into mobile biodiversity sensors, using the smartphones that they car... [more]

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