ISEP – GECAD – Artigos
URI permanente para esta coleção:
Navegar
Percorrer ISEP – GECAD – Artigos por autor "Almeida, Ana"
A mostrar 1 - 4 de 4
Resultados por página
Opções de ordenação
- A hybrid recommendation approach for a tourism systemPublication . Lucas, Joel P.; Luz, Nuno; Moreno, María; Anacleto, Ricardo; Almeida, Ana; Martins, ConstantinoMany current e-commerce systems provide personalization when their content is shown to users. In this sense, recommender systems make personalized suggestions and provide information of items available in the system. Nowadays, there is a vast amount of methods, including data mining techniques that can be employed for personalization in recommender systems. However, these methods are still quite vulnerable to some limitations and shortcomings related to recommender environment. In order to deal with some of them, in this work we implement a recommendation methodology in a recommender system for tourism, where classification based on association is applied. Classification based on association methods, also named associative classification methods, consist of an alternative data mining technique, which combines concepts from classification and association in order to allow association rules to be employed in a prediction context. The proposed methodology was evaluated in some case studies, where we could verify that it is able to shorten limitations presented in recommender systems and to enhance recommendation quality.
- Mobile application to provide personalized sightseeing toursPublication . Anacleto, Ricardo; Figueiredo, Lino; Almeida, Ana; Novais, PauloTourist recommendation systems have been growing over the last years, mainly because of the use of mobile devices to get user context. This work discuss some of the most relevant systems on the field and presents PSiS Mobile, which is a mobile recommendation and planning application designed to support a tourist during his vacations. It provides recommendations about points of interest to visit based on tourist preferences and on user and sight context. Also, it suggests a visit planning which can be dynamically adapted based on current user and sight context. This tool works like a journey dairy since it records the tourist moves and tasks to help him remember how the trip was like. To conclude, some field experiences will be presented.
- Reducing job throughout time: using horizontal scheduling and simultaneous manufacturingPublication . Almeida, Ana; Ramos, Carlos; Silva, Sílvio do Carmo; Kendall, Graham; Burke, Edmund; Petrovic, SanjaThis paper is concerned with reducing job throughput time in job-shop like manufacturing systems using a Horizontal Scheduling approach. We follow this approach because we aim at compressing job throughout time to a minimum. To further enhance this objective we apply Simultaneous Manufacturing through the widespread use of batch overlapping. For this we use a mechanism called Job Scheduling Pattern, which in addition to be particularly effective in reducing job throughout time, maintains operating simplicity and calls for reduced manufacturing coordination.
- Transfering data from a server to an Android Mobile application: a case studyPublication . Anacleto, Ricardo; Figueiredo, Lino; Almeida, Ana; Novais, PauloNowadays, due to the incredible grow of the mobile devices market, when we want to implement a client-server applications we must consider mobile devices limitations. In this paper we discuss which can be the more reliable and fast way to exchange information between a server and an Android mobile application. This is an important issue because with a responsive application the user experience is more enjoyable. In this paper we present a study that test and evaluate two data transfer protocols, socket and HTTP, and three data serialization formats (XML, JSON and Protocol Buffers) using different environments and mobile devices to realize which is the most practical and fast to use.