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We present the design, implementation, deployment and evaluation of novel urban computing infrastructure called ‘UBI-hotspot’. It is effectively a large interactive public display embedded with other computing resources. We have deployed a network of UBI-hotspots around downtown Oulu, Finland, to establish a public laboratory for conducting(More)
We report a novel deployment of so-called UBI-hotspots in a city center to establish an ecosystem infrastructure for conducting diverse urban computing research and business in authentic urban setting. We focus on the value network of the hotspots where the commercial use of the hotspots generates revenue for covering their operational expenses. The value(More)
We present a unique urban computing testbed for studying the utilization of ubiquitous computing technology in the public urban space of a city center. The testbed comprises of a wide range of pervasive computing infrastructure and different middleware resources. We demonstrate the applicability and benefits of the testbed in evaluating technology pilots(More)
We introduce BlueInfo, an open architecture for deploying web services in WPAN hotspots for cost-free context-aware mobile access over Bluetooth. A BlueInfo hotspot either pushes subscribed services at desired intervals to registered devices (BlueInfo Push) or alternatively the user invokes a particular service by sending a simple keyword query to the(More)
This paper presents a case study on the iterative design of a system for delivering in-situ information services to users' mobile devices using proximity-based technologies. The design advances from a questionnaire study of the users' attitudes and needs toward such information services via several incremental prototypes evaluated in a usability lab and at(More)
We report two one-month-long field trials where Bluetooth access points deployed around Oulu, Finland, were employed to attempt to push unsolicited multimedia marketing messages to bypassing mobile devices that had their Bluetooth on and visible. The logs involving ~65000 unique discovered devices of real users show that only 0.12% of the ~650000(More)
The teguments of males from 5 populations of S. mattheei, of which 3 were sympatric and 2 allopatric with S. haematobium, were studied by means of scanning electron microscopy (SEM). A certain percentage of the males of each sympatric population bore tubercle spines while the allopatric populations were spineless. It is postulated that the presence of(More)
We first motivate why dedicated pervasive computing infrastructure is needed for promoting long-term large-scale pervasive computing research in real-world setting. Then we briefly describe the UBI-hotspot infrastructure we have deployed at downtown Oulu, Finland, for this purpose. We conclude with a discussion on the challenges this kind of infrastructure(More)