People with disabilities living in Brazil face great difficulties in the tasks of daily life mainly due to the lack of accessibility in public spaces, products and services. In this context, we noticed a lack of a computing tool that embraces both people with visual and hearing impairment. This work presents TATU -- a mobile application for both Android and iOS platforms aimed at supporting people with visual or hearing impairment to enjoy Brazilian tourist attractions, including both open-air and indoor spaces. TATU application has an adaptive interface exclusively designed for each of the impairment user profiles, it can work on guided tour mode by indoor navigation using BLE beacons and outdoor navigation using GPS. Our solution was evaluated by three experiments, one of which was carried out with blind volunteers and TATU application obtained satisfactory results for both spacious attractions with the lowest density of collection items and for the smallest spaces.
Nos últimos anos, com o crescente aumento da população em áreas urbanas, cidades inteligentes surgem como uma alternativa para auxiliar gestores na tomada de decisão, através da utilização de uma rede de dispositivos IoT, que geram dados relativos à infraestrutura urbana. Entretanto, o número de dispositivos IoT cresce constantemente, gerando um imenso volume de dados convencionais e espaciais. Diante disso, este trabalho discute métodos para auxiliar na tomada de decisão no contexto de cidades inteligentes, a partir do uso de técnicas de pré-processamento dos dados brutos gerados por dispositivos IoT, armazenamento e processamento paralelo e distribuído de dados espaciais. Foi desenvolvido um estudo de caso com dados de cerca de 500 mil corridas de táxi ocorridas em Porto, Portugal, que apresenta resultados que podem auxiliar gestores na melhoria do serviço de transportes da cidade.
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