Showing papers by "Eemil Lagerspetz published in 2007"
11 Jun 2007
TL;DR: BeTelGeuse turns a standard mobile device such as a cellular phone into a relay node which gathers data from a body area network over Bluetooth, and forwards it to a remote server over a mobile data service such as GPRS.
Abstract: In ubiquitous computing, activity-related data is typically gathered using customized sensing equipment that give physiological measurements. Unfortunately, such systems are often proprietary or expensive to obtain. Recently, the decrease in the prices of Bluetooth chips has made Bluetooth sensors a viable alternative. In previous research, various systems for gathering data from Bluetooth sensors have been proposed, but they are usually limited to a specific set of sensors or to a specific runtime platform. To address these shortcomings, we have developed BeTelGeuse, a tool for Bluetooth data gathering. BeTelGeuse turns a standard mobile device such as a cellular phone into a relay node which gathers data from a body area network over Bluetooth, and forwards it to a remote server over a mobile data service such as GPRS.
21 citations
01 Jan 2007
TL;DR: Dessy, aDESktop Search directorY system for mobile and desktop computers alike, allows a user to find files by their content, metadata, and context information, provides an interface for locating files for both users and applications, and allows finding files with just their metadata available.
Abstract: In the near future, mobile devices are expected to have a storage capacity comparable to today’s desktop machines. As the amount of infomation grows, conventional search tools become less effective. To meet these challenges, we turn to desktop search. This paper presents Dessy, aDESktop Search directorY system for mobile and desktop computers alike. It allows a user to find files by their content, metadata, and context information, provides an interface for locating files for both users and applications, and allows finding files with just their metadata available. Dessy supports separate synchronization of file metadata and data. Dessy is unique among desktop search software in that it clearly separates extraction, exchange, and querying of search metadata. In particular, metadata extraction may be performed on one device and querying on another, with only search metadata being exchanged between the devices. Dessy emphasizes extensibility: adding new indexed file types, metadata fields, and index storage methods is easy. Finding files is done with virtual directories, which are views into the user’s files, browseable by regular file managers.
10 citations