Results 1 - 10 of 14,520

Performance in a Real Indoor Scenario

by Pierluigi Salvo Rossi, Ralf Reiner Müller, See Profile, Available Pierluigi, Salvo Rossi, Pierluigi Salvo Rossi, Parisa Pakniat, Ralf R. Müller, Ove Edfors , 2007
"... All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately. ..."
Abstract - Add to MetaCart
All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.

Performance of an Iterative Multi-User Receiver for MIMO-OFDM Systems in a Real Indoor Scenario

by P. Salvo Rossi, P. Hammarberg, F. Tufvesson, O. Edfors, P. Almers, V. -m. Kolmonen, J. Koivunen
"... Abstract—This paper aims at validation of an iterative receiver for Multiple-Input Multiple-Output with Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems using real-measurement channel data from an indoor scenario. The receiver performs iterative Multi-User Detection (MUD) and Channel E ..."
Abstract - Cited by 1 (1 self) - Add to MetaCart
Abstract—This paper aims at validation of an iterative receiver for Multiple-Input Multiple-Output with Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems using real-measurement channel data from an indoor scenario. The receiver performs iterative Multi-User Detection (MUD) and Channel

Cyberguide: A Mobile Context-Aware Tour Guide

by Gregory D. Abowd, Christopher G. Atkeson, Jason Hong, Sue Long, Rob Kooper, Mike Pinkerton , 1996
"... Future computing environments will free the user from the constraints of the desktop. Applications for a mobile environment should take advantage of contextual information, suach as position, to offer greater services to the user. In his paper, we present the Cyberguide project, in which we are buil ..."
Abstract - Cited by 652 (24 self) - Add to MetaCart
are building prototypes of a mobile context-aware tour guide. Knowledge of the user's current location, as well as a history of past locations, are used to provide more of the kind of services that we come to expect from a real tour guide. We describe the architecture and features of a variety

A Bayesian approach to filtering junk E-mail

by Mehran Sahami, Susan Dumais, David Heckerman, Eric Horvitz - PAPERS FROM THE 1998 WORKSHOP, AAAI , 1998
"... In addressing the growing problem of junk E-mail on the Internet, we examine methods for the automated construction of filters to eliminate such unwanted messages from a user’s mail stream. By casting this problem in a decision theoretic framework, we are able to make use of probabilistic learning m ..."
Abstract - Cited by 545 (6 self) - Add to MetaCart
of this problem in addition to the raw text of E-mail messages, we can produce much more accurate filters. Finally, we show the efficacy of such filters in a real world usage scenario, arguing that this technology is mature enough for deployment.

Cluster Ensembles - A Knowledge Reuse Framework for Combining Multiple Partitions

by Alexander Strehl, Joydeep Ghosh, Claire Cardie - Journal of Machine Learning Research , 2002
"... This paper introduces the problem of combining multiple partitionings of a set of objects into a single consolidated clustering without accessing the features or algorithms that determined these partitionings. We first identify several application scenarios for the resultant 'knowledge reuse&ap ..."
Abstract - Cited by 603 (20 self) - Add to MetaCart
This paper introduces the problem of combining multiple partitionings of a set of objects into a single consolidated clustering without accessing the features or algorithms that determined these partitionings. We first identify several application scenarios for the resultant 'knowledge reuse

GPS-free positioning in mobile ad hoc networks

by Srdjan Capkun, Maher Hamdi, Jean-Pierre Hubaux - Cluster Computing , 2001
"... this paper, we describe an algorithm for the positioning of nodes in an ad hoc network that does not use GPS. The algorithm provides a position information to the nodes in the scenarios where an infrastructure does not exist and GPS cannot be used. GPS-free positioning is also desirable, when the GP ..."
Abstract - Cited by 462 (12 self) - Add to MetaCart
this paper, we describe an algorithm for the positioning of nodes in an ad hoc network that does not use GPS. The algorithm provides a position information to the nodes in the scenarios where an infrastructure does not exist and GPS cannot be used. GPS-free positioning is also desirable, when

Evolutionary Algorithms for Multiobjective Optimization

by Eckart Zitzler , 2002
"... Multiple, often conflicting objectives arise naturally in most real-world optimization scenarios. As evolutionary algorithms possess several characteristics due to which they are well suited to this type of problem, evolution-based methods have been used for multiobjective optimization for more than ..."
Abstract - Cited by 450 (13 self) - Add to MetaCart
Multiple, often conflicting objectives arise naturally in most real-world optimization scenarios. As evolutionary algorithms possess several characteristics due to which they are well suited to this type of problem, evolution-based methods have been used for multiobjective optimization for more

A statistical approach for real-time robust background subtraction and shadow detection

by Thanarat Horprasert, David Harwood, Larry S. Davis , 1999
"... This paper presents a novel algorithm for detecting moving objects from a static background scene that contains shading and shadows using color images. We develop a robust and e ciently computed background subtraction algorithm that is able to cope with local illumination changes, such as shadows an ..."
Abstract - Cited by 326 (4 self) - Add to MetaCart
and highlights, as well as global illumination changes. The algorithm is based onaproposed computational color model which separates the brightness from the chromaticity component. We have applied this method toreal image sequences of both indoor and outdoor scenes. The results, which demonstrate the system

XMark: A Benchmark for XML Data Management

by Albrecht Schmidt, Florian Waas, Martin Kersten, Michael J. Carey, Ioana Manolescu, Ralph Busse - In VLDB , 2002
"... While standardization efforts for XML query languages have been progressing, researchers and users increasingly focus on the database technology that has to deliver on the new challenges that the abundance of XML documents poses to data management: validation, performance evaluation and optimi ..."
Abstract - Cited by 348 (20 self) - Add to MetaCart
and optimization of XML query processors are the upcoming issues. Following a long tradition in database research, we provide a framework to assess the abilities of an XML database to cope with a broad range of different query types typically encountered in real-world scenarios.

Incremental mapping of large cyclic environments

by Jens-steffen Gutmann, Kurt Konolige - In Computational Intelligence in Robotics and Automation , 1999
"... Mobile robots can use geometric or topological maps of their environment to navigate reliably. Automatic creation of such maps is still an unrealized goal, especially in environments that have large cyclical structures. Drawing on recent techniques of global registration and correlation, we present ..."
Abstract - Cited by 332 (19 self) - Add to MetaCart
of the map (except when closing large cycles). A real-time implementation and results are presented for several indoor environments. 1.
Results 1 - 10 of 14,520