Cookies
O website necessita de alguns cookies e outros recursos semelhantes para funcionar. Caso o permita, o INESC TEC irá utilizar cookies para recolher dados sobre as suas visitas, contribuindo, assim, para estatísticas agregadas que permitem melhorar o nosso serviço. Ver mais
Aceitar Rejeitar
  • Menu
Publicações

2022

A deep learning approach for automatic counting of bedbugs and grape moth

Autores
Teixeira, AC; Morais, R; Sousa, JJ; Peres, E; Cunha, A;

Publicação
CENTERIS/ProjMAN/HCist

Abstract
The bedbug and the grape moth are the most significant pests affecting rice and vineyards, causing great damage. However, these pests are only two examples of the many insect pests that exist with great potential to cause significant crop damage. Insect traps are among the most appropriate solution for monitoring and counting, influencing the selection and dosage of the pesticide to be applied for pest control. However, the counting and monitoring operations are based on the frequent visit of technicians to the site and are supported by inefficient counting methods, which is a challenging and time-consuming task. This study proposes the automatic counting of bedbugs and grape moths in traps using deep learning algorithms. We use three different databases, Pest24, Bedbug and Grape moth. Pest24 is a public dataset with a great diversity of insects. The Bedbugs and the Grape moth datasets are private datasets provided by mySense, a precision agriculture platform developed and managed by researchers from the University of Tras-os-Montes e Alto Douro (UTAD). First, we trained the Pest24 dataset with YOLOv5, and we got an mAP of 69.3%. Then, using the weights obtained from the Pest24 dataset, we trained the Bedbug and Grape moth datasets. The best results for the bedbug dataset were obtained with the YOLOv5 with transfer learning with an AP of 96.5% and a counting error of 63.3%. The best result was obtained with YOLOv5 without transfer learning of Pest24 with an AP of 90.9% and a counting error of 6.7 for the Grape moth.

2022

Directrizes para a elaboração de artigos científicos (quantitativos)

Autores
Vasconcelos-Raposo, J; Teixeira, C;

Publicação
PSYCHTECH & HEALTH JOURNAL

Abstract
Este manuscrito tem por objectivo apresentar aos estudantes um documento orientador para a elaboração de trabalhos científicos. Visa colmatar um descuido grave no ensino superior que é pretender desenvolver capacidades para a pesquisa científica e sua divulgação, sem que no processo se ensine aos discentes como se escreve um artigo científico. Este documento segue a estrutura do artigo científico e em cada das secções descrevem-se aqueles que devem ser os conteúdos a serem contemplados. O propósito deste estilo de apresentação é proporcionar aos que se iniciam na escrita de artigos científicos os detalhes a serem incluídos de modo a satisfazerem o que é exigido pelas equipas editoriais dos periódicos científico com avaliação por pares.

2022

Supplemental package for a study on product managers in software startups

Autores
anonymous, a; Melegati, J; Wiese, IS; Guerra, E; Chanin, R; Aldaeej, A; Mikkonen, T; Prikladnicki, R; Wang, X;

Publicação

Abstract

2022

WebPuppet - A Tiny Automated Web UI Testing Tool

Autores
Queirós, R;

Publicação
ICPEC

Abstract
One of the most important phases in the Web development cycle is testing. There are several types of tests, different approaches to their use and a wide range of tools. However, most of them are not open source, require coding and do not have a pedagogical nature. This article introduces WebPuppet as an automated Web UI testing tool. The tool is distributed as a small Node package and can be easily integrated into any learning environment in the web development domain. In addition, it does not require coding in any language, just use a very simple domain-specific language that will generate a test script to run in client applications. In order to exemplify its use, a simple test scenario based on a login page is presented.

2022

The Role of Digital Marketing in Increasing SMEs' Competitiveness

Autores
Silva, RP; Mamede, H; Santos, A;

Publicação
ICSBT: PROCEEDINGS OF THE 19TH INTERNATIONAL CONFERENCE ON SMART BUSINESS TECHNOLOGIES

Abstract
With the significant increase of technology-based newer competitors and the digital economy reshaping the global economic environment, it is undoubtful that the market is becoming aggressively more demanding for small and medium enterprises, which is a strong driver of their need to adopt new digital technologies and transform their businesses. Events such as the COVID-19 pandemic have accelerated the online engagement of consumers, and that also means that digital transformation might not only be about the digitalisation of internal processes and reshaping of business models but as well, and not least relevant, the Strategies used by SMEs to position themselves in the market and maximise the value of digital marketing to regain competitiveness and reposition their products.

2022

A mass and vibration optimized solution for 6D precision heavy instrument alignment and its application to METIS

Autores
Amorim, A; Filho, M; Lesman, D; Carvalho, F; Costa, R; Ngando, M; Garcia, P;

Publicação
ADVANCES IN OPTICAL AND MECHANICAL TECHNOLOGIES FOR TELESCOPES AND INSTRUMENTATION V

Abstract
Hexapods are general solutions that provide movement with six degrees of freedom for instrument positioning, alignment, and support. In the case of the METIS instrument, the hexapod must satisfy the following stringent requirements: a) support the 11-ton weight of an instrument; b) allow alignment and provide position stability to the instrument to within a tenth of a millimeter; c) provide an adjustment range of about 20 cm; d) support the instrument allowing for accelerations of over 3 g in all directions; e) have the lowest mass possible. Commercial linear actuators that are generally used in such cases are designed for extended movement, include a complete set of bearings that constrain each actuator lateral displacements and a sophisticated central screw that defines only the longitudinal movement. These solutions tend to be heavy and costly if roller screws are used to avoid backslash. They encompass ranges that are a major fraction of the total length and are designed for fast movement. Both these characteristics exceed the requirements of the METIS application. We present an optimized design for the hexapod which includes a different, lightweight, sturdy, small-range, high-precision, no backslash, earthquake-proof actuator. The design of the hexapod is such that it can be used, in general, as a mass and vibration optimized solution for precision heavy instrument alignment.

  • 1121
  • 4542