Integrated Context Management for Multi-domain Pervasive Environments (2009)
Rui José, Filipe Meneses, Adriano Moreira
Abstract. An important part of the value of ubiquitous computing environments is in their ability to interact with external domains. This paper addresses the issue of cross-domain context management...
How do I design a location-dependent application? (2008)
Filipe Meneses, Adriano Moreira, Rui José
The generalisation of the Internet and the recent technological developments in embedded systems and wireless networks contribute to the realisation of a vision where access to information is...
A FLEXIBLE LOCATION-CONTEXT REPRESENTATION (2008)
Filipe Meneses, Adriano Moreira
Abstract – Ubiquitous computing and the development of context-aware applications have been limited by the lack of open and generic solutions. In this paper we propose a flexible location-context...
Automatic Classification of Location Contexts with Decision Trees (2008)
Maribel Yasmina Santos, Adriano Moreira
Abstract. Location contexts are geographic regions, with well defined boundaries, that can be used to characterize the context of the persons lying inside them. In this paper we describe a process...
Santos, Maribel Yasmina, Moreira, Adriano
Location is an important dimension of contextual information for mobile systems, playing a key role in the development of context-aware and location-based applications. The identification of a...
Moreira, Adriano, Santos, Maribel Yasmina
There is an on-line version of the Concave Hull algorithm at: http://local.dsi.uminho.pt
Using GSM CellID positioning for place discovering (2006)
Meneses, Filipe, Moreira, Adriano
Mobile phones can be used not only for voice and data communications but also as a computing device running context-aware applications. In this paper we present a model that, based on GSM cell...
Enhancing the location-context through inference over positioning data (2006)
Meneses, Filipe, Moreira, Adriano
The current ubiquity of wireless communication networks is enabling new ways to compute the position of mobile devices and their users. One good example is the Place Lab system that exploits the...
Automatic classification of location contexts with decision trees (2006)
Santos, Maribel Yasmina, Moreira, Adriano
Location contexts are geographic regions, with well defined boundaries, that can be used to characterize the context of the persons lying inside them. In this paper we describe a process that...
Clustering in the identification of space models (2006)
Santos, Maribel Yasmina, Moreira, Adriano, Carneiro, Sofia
Clustering is the process of grouping a set of objects into clusters so that objects within a cluster have high similarity with each other, but are as dissimilar as possible to objects in other...
Space models as a tool for sustainability development (2005)
Moreira, Adriano, Santos, Maribel Yasmina, Carneiro, Sofia
Space Models are new space geometries that are created to emphasize the particularities of the geo-referenced data analysed. A Space Model integrates groups of regions that present similar behaviour...
Integrated context management for multi-domain pervasive environments (2005)
José, Rui, Meneses, Filipe, Moreira, Adriano
An important part of the value of ubiquitous computing environments is in their ability to interact with external domains. This paper addresses the issue of cross-domain context management in a...
Moreira, Adriano, Santos, Maribel Yasmina
Location-aware applications use the location of users to adapt their behaviour and to select the relevant information for users in a particular situation. This location information is obtained...
Enhancing a user context by real-time clustering mobile trajectories (2005)
Moreira, Adriano, Santos, Maribel Yasmina
With the increasing availability of mobile networks and mobile devices, new paradigms of interaction between users and between a user and the surrounding environment are emerging. Location-aware...
A flexible location-context representation (2004)
Meneses, Filipe, Moreira, Adriano
Ubiquitous computing and the development of context-aware applications have been limited by the lack of open and generic solutions. In this paper we propose a flexible location-context representation...
Os sistemas de informação geográfica no suporte a serviços móveis para o cidadão (2004)
Arouca, David, Figueiredo, Carlos, José, Rui, Machado, Ricardo J., Monteiro, Paula, Moreira, Adriano, ...
O seguinte artigo descreve os trabalhos de investigação efectuados no âmbito do projecto USE-ME.GOV (USability-drivEn open platform for Mobile GOVernment), um projecto do 6º Programa Quadro, que...
STICH : a hierarchical clustering algorithm (2004)
Santos, Maribel Yasmina, Moreira, Adriano, Carneiro, Sofia
Clustering has been widely used to find homogeneous groups of data in datasets while looking at some specific metric. Several clustering techniques have been developed, each one presenting advantages...
System support for integrated ubiquitous computing environments (2003)
José, Rui, Pinto, Helder, Meneses, Filipe, Vilas Boas, Noé, Rodrigues, Helena, Moreira, Adriano
This paper describes an ongoing research on the issues of interoperability and seamless integration between a global user environment and the ubiquitous computing environments corresponding to the...
The around architecture for location-based services (2003)
José, Rui, Moreira, Adriano, Rodrigues, Helena, Davies, Nigel
This paper presents a generic concept of location-based service as an abstraction for supporting the association between computational resources and location. The objective is to extend the...
An expandable location-based portal for mobile users (2003)
Moreira, Adriano, José, Rui, Pinto, Helder, Vilas Boas, Noé
The provision of information and electronic services to citizens through wireless networks has already started a few years ago. In particular, most GSM network operators in Europe offer a...
Hypergeo : context-aware access to geographic information for mobile users (2003)
Rodrigues, Helena, José, Rui, Moreira, Adriano, Pinto, Helder
The Hypergeo project aimed at providing technical tools to enable value-added, location-based information services to mobile users. Existing approaches are typically based on obtaining some...
How do I design a location-dependent application? (2001)
Meneses, Filipe, Moreira, Adriano, José, Rui
The generalisation of the Internet and the recent technological developments in embedded systems and wireless networks contribute to the realisation of a vision where access to information is...
An open architecture for developing mobile location-based applications over the internet (2001)
José, Rui, Meneses, Filipe, Moreira, Adriano, Coulson, Geoff
The mobile Internet is enabling a broad range of new applications that dynamically obtain information that is relevant to their current location. This type of application would greatly benefit from...
An Open Architecture for Developing Mobile Location-Based Applications over the Internet (2001)
Rui José, Adriano Moreira, Filipe Meneses
The mobile Internet is enabling a broad range of new applications that dynamically obtain information that is relevant to their current location. This type of application would greatly benefit from...
An Open Architecture for Developing Mobile Location-Based Applications over the Internet (2001)
Rui Jose, Adriano Moreira, Filipe Meneses, Geoff Coulson
The mobile Internet is enabling a broad range of new applications that dynamically obtain information that is relevant to their current location. This type of application would greatly benefit from...