Dr Geoff V. Merrett
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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

I Provide 'Expert Advice' on Haptic Technology
8th October 2013
Article on
This morning I was contacted by a journalist from 'The Engineer' magazine, who was writing a piece about research at Bristol University on the use of ultrasound as a tactile technology. The technology, which I saw demonstrated at a conference a few years ago, uses inaudible ultrasound waves to give the sensation of touch to the fingertips, and by using an array of transducers, can target the sensation at particular locations. My comments on the technology included: "'Touchless haptics is prob... [more]

WiSE Project Day
12th November 2008
The WiSE Project Day, in the ESD Lab
WiSE held it's first 'Project Day', an intensive one-day problem-based exercise for PhD students in ECS that are researching wireless sensing related topics. Ten students took part in an intensive day which ran from 8am to 7pm! Two teams were formed, one of which was tasked with developing a piece of clinical equipment (in response to a request from a Surgeon at the local University Hospital), while the other was required to develop a sensor network to monitor our building. The exercise prom... [more]

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