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Exploring Low Cost Laser Sensors to Identify Flying Insect Species

Evaluation of Machine Learning and Signal Processing Methods

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Abstract

Insects have a close relationship with the humanity, in both positive and negative ways. Mosquito borne diseases kill millions of people and insect pests consume and destroy around US $40 billion worth of food each year. In contrast, insects pollinate at least two-thirds of all the food consumed in the world. In order to control populations of disease vectors and agricultural pests, researchers in entomology have developed numerous methods including chemical, biological and mechanical approaches. However, without the knowledge of the exact location of the insects, the use of these techniques becomes costly and inefficient. We are developing a novel sensor as a tool to control disease vectors and agricultural pests. This sensor, which is built from inexpensive commodity electronics, captures insect flight information using laser light and classifies the insects according to their species. The use of machine learning techniques allows the sensor to automatically identify the species without human intervention. Finally, the sensor can provide real-time estimates of insect species with virtually no time gap between the insect identification and the delivery of population estimates. In this paper, we present our solution to the most important challenge to make this sensor practical: the creation of an accurate classification system. We show that, with the correct combination of feature extraction and machine learning techniques, we can achieve an accuracy of almost 90 % in the task of identifying the correct insect species among nine species. Specifically, we show that we can achieve an accuracy of 95 % in the task of correctly recognizing if a given event was generated by a disease vector mosquito.

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Authors and Affiliations

  1. Instituto de Ciências Matemáticas e de Computação, Universidade de São Paulo, Caixa Postal 668, São Carlos, SP, 13560-970, Brazil

    Diego F. Silva, Vinícius M. A. Souza & Gustavo E. A. P. A. Batista

  2. Electrical Engineering, Columbia University, 500 W. 120th St., New York, NY, 10027, USA

    Daniel P. W. Ellis

  3. Computer Science & Engineering Department, University of California, 900 University Ave, Riverside, CA, 92521, USA

    Eamonn J. Keogh

Authors
  1. Diego F. Silva
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  2. Vinícius M. A. Souza
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  3. Daniel P. W. Ellis
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  4. Eamonn J. Keogh
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  5. Gustavo E. A. P. A. Batista
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Correspondence to Diego F. Silva.

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Silva, D.F., Souza, V.M.A., Ellis, D.P.W. et al. Exploring Low Cost Laser Sensors to Identify Flying Insect Species. J Intell Robot Syst 80 (Suppl 1), 313–330 (2015). https://doi.org/10.1007/s10846-014-0168-9

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  • DOI: https://doi.org/10.1007/s10846-014-0168-9

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