2019
Authors
Azevedo, A; Sousa, C; Duarte, N; Pereira, C; Souesa, C; Peraira, C;
Publication
2019 14TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES (CISTI)
Abstract
Innovation stills on the world's agenda as the holy grail of business success. Nevertheless, it stills hard for some communities to understand and embrace innovation processes in a systematic way as a continuum for regional development. Our stance is that innovation seeds, feeds innovation. That means, innovation won't work in a closed cycle, but rather in an open and cross-entity manner, forming a knowledge-managed regional development ecosystem. Accordingly, this paper describes a knowledge lab, designed as an intel structure to offer knowledge-intensive services towards the regional development of the "Tamega e Sousa" (NUTIII) Region. This knowledge lab aims at complementing the installed dynamics on innovation support and economic stimulus in a knowledge-based innovation management approach.
2019
Authors
Pataco, T; Silva, M;
Publication
PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON TOURISM RESEARCH (ICTR 2019)
Abstract
The latest forecasts for the Portuguese tourist industry show that it will represent 16% of the Portuguese GNP very soon and, for 2017, the State Statistical Office registered over 3.5 million guests visiting the North of Portugal and around 7.4 million overnight stays in the region's tourist accommodation, which makes it safe to say that investing in projects that foster a common language in business communication will not only result in tangible financial gains but also in improved multi-cultural and multilingual understanding. Companies need, thus, to communicate seamlessly in a fully internationalised and digital world challenges companies to meet the need to systematise and harmonise language to properly convey meaning, thus promoting successful business undertakings. Such a need, a direct consequence of the phenomenon of globalisation and internationalisation of scientific and technological knowledge, becomes clear in a region with all the necessary elements to anchor sustainable growth, namely the four locations classified as UNESCO's World Heritage sites (Porto's historic center, Alto Douro wine region, Oa Valley Archeological Park and GuimarSes Historic Center). "WiTo - Do you speak wine tourism?" is a project, supported by a PhD thesis, that aims at creating an electronic multilingual thesaurus the wine tourism experts will consider a useful tool for communicating with different publics (experts and non-experts). Thus, we will have to determine which subjects and technical know-how are considered core, complementary and cross-sectional to wine tourism, leading to the conceptual representation of wine tourism specialised language (which, in turn, will allow for structuring and harmonization of the linguistic heritage clearly visible in the area's terminology). This project aims at providing the necessary basis for optimising knowledge transfer (thus promoting a faster flow of technical and scientific information) and its implementation in tourism information systems and electronic support platforms. This article aims at giving an overview of the current research in this area and presenting WiTo by highlighting some of its preliminary results and discussing some of the open questions.
2019
Authors
Bastos, S; De Oliveira, H; Silva, MM; Azevedo, L;
Publication
PROCEEDINGS OF THE 18TH EUROPEAN CONFERENCE ON E-LEARNING (ECEL 2019)
Abstract
This article arises from the proposal of a new approach regarding the inclusion of soft-digital skills training in higher education. The study carried out on several curricular units in different higher education courses in Portugal led us to reflect on a different educational model, which combines the development of soft skills in digital environments. Digitalization and the use of technologies since early ages in the educational process are raising interesting questions. This article intends to go deeper on the use of digital technologies, namely through the virtual environments imposed by higher education institutions as a form of study. The main question is how pedagogies and the use of technologies have a meeting point where it is possible to continue humanization in education through the utilization of virtual environments to support the teaching/learning process. The methodology used in this study has its support on questionnaires made to students of higher education in different areas of knowledge, such as medicine, nursing, engineering, management, arts and literature. The main conclusions of this study are the importance of creating and using digital platforms that not only support the study but also contemplate the use of a virtual reality where students can interact with others in the discussion and resolution of real life situations.
2019
Authors
Simoes, A; Oliveira, L; Rodrigues, JC; Simas, O; Dalmarco, G; Barros, AC;
Publication
2019 IEEE INTERNATIONAL CONFERENCE ON ENGINEERING, TECHNOLOGY AND INNOVATION (ICE/ITMC)
Abstract
Previous literature shows that there are different environmental factors with different impacts on the adoption of technologies in a supply chain context. Thus, the adoption of technologies in supply chains may vary according to different environmental factors. Despite the existence of several studies about adoption of technologies in supply chain contexts that include environmental factors, there is a gap in identifying which environmental factors influence the adoption of digitalization technologies in supply chains. The purpose of this study is therefore to identify and analyze the environmental factors that influence the adoption of digitalization technologies in the supply chain. An exploratory qualitative research was conducted using semi-structured interviews with Portuguese managers of companies at several tiers of the automotive supply chain. Environmental factors were pointed as particularly critical drivers to promote the adoption of digitalization technologies in the automotive supply chain. Such adoption is mainly driven by the Original Equipment Manufacturer ( OEM), through coercive and normative pressures over the other tiers of the supply chain. Relevant factors identified are: compliance with standards and legislation, market and industry pressures, and benchmark the evolution of supply chain partners. This study contributes to the literature with new knowledge concerning new specificities of the environmental factors that showed an important influence on the adoption decision.
2019
Authors
Kandasamy, S; Morla, R; Ramos, P; Ricardo, M;
Publication
WIRELESS NETWORKS
Abstract
In IEEE 802.11 based wireless networks interference increases as more access points are added. A metric helping to quantize this interference seems to be of high interest. In this paper we study the relationship between the improved attacking case metric, which captures interference, and throughput for IEEE 802.11 based network using directional antenna. The y(1/3) = a + b (ln x)(3) model was found to best represent the relationship between the interference metric and the network throughput. We use this model to predict the performance of similar networks and decide the best configuration a network operator could use for planning his network.
2019
Authors
Oliveira, JM; Ramos, P;
Publication
ENTROPY
Abstract
Retailers need demand forecasts at different levels of aggregation in order to support a variety of decisions along the supply chain. To ensure aligned decision-making across the hierarchy, it is essential that forecasts at the most disaggregated level add up to forecasts at the aggregate levels above. It is not clear if these aggregate forecasts should be generated independently or by using an hierarchical forecasting method that ensures coherent decision-making at the different levels but does not guarantee, at least, the same accuracy. To give guidelines on this issue, our empirical study investigates the relative performance of independent and reconciled forecasting approaches, using real data from a Portuguese retailer. We consider two alternative forecasting model families for generating the base forecasts; namely, state space models and ARIMA. Appropriate models from both families are chosen for each time-series by minimising the bias-corrected Akaike information criteria. The results show significant improvements in forecast accuracy, providing valuable information to support management decisions. It is clear that reconciled forecasts using the Minimum Trace Shrinkage estimator (MinT-Shrink) generally improve on the accuracy of the ARIMA base forecasts for all levels and for the complete hierarchy, across all forecast horizons. The accuracy gains generally increase with the horizon, varying between 1.7% and 3.7% for the complete hierarchy. It is also evident that the gains in forecast accuracy are more substantial at the higher levels of aggregation, which means that the information about the individual dynamics of the series, which was lost due to aggregation, is brought back again from the lower levels of aggregation to the higher levels by the reconciliation process, substantially improving the forecast accuracy over the base forecasts.
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