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» A relative positioning system for co-located mobile devices
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TROB
2002
118views more  TROB 2002»
15 years 5 months ago
The odometry error of a mobile robot with a synchronous drive system
This paper presents an error modeling of an odometry system for a synchronous-drive system and a possible strategy for evaluating this error. The odometry error is modeled by intro...
Agostino Martinelli
SASN
2003
ACM
15 years 11 months ago
SECTOR: secure tracking of node encounters in multi-hop wireless networks
In this paper we present SECTOR, a set of mechanisms for the secure verification of the time of encounters between nodes in multi-hop wireless networks. This information can be u...
Srdjan Capkun, Levente Buttyán, Jean-Pierre...
SEMWEB
2005
Springer
15 years 11 months ago
RelExt: A Tool for Relation Extraction from Text in Ontology Extension
Abstract. Domain ontologies very rarely model verbs as relations holding between concepts. However, the role of the verb as a central connecting element between concepts is undenia...
Alexander Schutz, Paul Buitelaar
IJDAR
2008
92views more  IJDAR 2008»
15 years 6 months ago
Mobile Retriever: access to digital documents from their physical source
In this paper we describe an image based document retrieval system which runs on camera enabled mobile devices. "Mobile Retriever" aims to seamlessly link physical and di...
Xu Liu, David S. Doermann
PUC
2008
116views more  PUC 2008»
15 years 5 months ago
Prototypical implementation of location-aware services based on a middleware architecture for super-distributed RFID tag infrast
of the hardware abstraction layer and of selected core middleware services. The latter enable a mobile device to store and retrieve data and position information in physical places...
Jürgen Bohn