Small computing devices are everywhere changing the way people communicate and interact, however applications for these devices are developed more or less with the same tools used for conventional computer applications. Developers of handheld computer applications can find few options for development. In this paper we present MADEE a development and execution environment for mobile information ...

Adequate user authentication is a persistent problem, particularly with handheld devices such as Personal Digital Assistants (PDAs), which tend to be highly personal and at the fringes of an organization’s influence. Yet, these devices are being used increasingly in corporate settings where they pose a security risk, not only by containing sensitive information, but also by providing the means ...

Availability of high bandwidth infrastructure such as GPRS, 3G and UMTS networks, advances in wireless technologies (Chen and Nahrstedt, 2000; Chiang, et al., 1998; Johnson and Maltz, 1996; Chen and Lai, 2000; Lin and Liu, 1999) and popularity of handheld devices (Microsoft, 2001) provide a new way for education by extending the learning time and space. One important emerging application of han...

This paper presents a complete Optical Character Recognition (OCR) system for camera captured image/graphics embedded textual documents for handheld devices. At first, text regions are extracted and skew corrected. Then, these regions are binarized and segmented into lines and characters. Characters are passed into the recognition module. Experimenting with a set of 100 business card images, ca...

BACKGROUND Mobile health has promising potential in improving healthcare delivery by facilitating access to expert advice. Enabling experts to review images on their smartphone or tablet may save valuable time. This study aims at assessing whether images viewed by medical specialists on handheld devices such as smartphones and tablets are perceived to be of comparable quality as when viewed on ...

The fast spread of handheld smart devices contributed to the development of VoIP softphones running over such devices. Most security mechanisms were mainly designed for desktop PCs and hence did not take into consideration the power constraints of handheld devices. This fact highly motivated the development of new security mechanisms that try to minimize the energy consumption without compromis...

Despite recent increases in the processing power of handheld computers, often called palmtops, the devices continue to function primarily as personal information organizers. We believe adding mass storage to handheld computers will expand the usefulness of the devices. We propose a storage hierarchy, involving a hard disk and large software controlled flash memory cache, that lowers the power c...

At the Campus Bio-Medico University of Rome we have been using wireless networks and portable devices for more than three years to improve the quality of service. In this paper we describe the design of an application for handheld devices created to support the activity of the surgical ward, where daily documentation and maintenance of medical record quality is a crucial issue. We tested the in...

This paper presents a preliminary study conducted at the Cape Peninsula University of Technology (CPUT) on the use of mobile handheld devices (PDAs) in an undergraduate computer programming subject. The primary objective of this study was to investigate the wide reaching implications of utilising mobile technology as an alternative technology for teaching an undergraduate programming subject. T...

This paper presents the design of a middleware approach that aims at assisting handheld devices in accessing Grid services by wrapping the computational and resource intensive tasks in a surrogate and shifting them to a capable machine for execution. The performance of the surrogate approach is evaluated with the help of a test scenario. The reduction in computational intensity at the handheld ...