I'll make the change today - however iI've limited time to react to these requests on an ad-hoc basis so opening a window might be useful.<div><br></div><div>Apologies - with Shoaib off shore and mental life at the moment I've been allowing updates to mount up till i get some free time.<br>
<div><div><br>Simon<br>
<br><br><div class="gmail_quote">2009/8/2 Cameron Shorter <span dir="ltr"><<a href="mailto:cameron.shorter@lisasoft.com">cameron.shorter@lisasoft.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Volker,<br>
What process do you suggest we follow to allow people to change their abstracts and bios?<br>
Is this something you would be able to facilitate?<br>
<br>
Ideally, I'd like to open up the abstract software for 3 weeks or so, allow people to change their abstracts, then at the end do a bulk update to the website.<div><div></div><div class="h5"><br>
<br>
Venka wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear All,<br>
<br>
I am awaiting some response and follow-up for<br>
my request below.<br>
<br>
Thanks in advance.<br>
<br>
Venka<br>
<br>
Venka wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear All,<br>
<br>
Could you kindly make changes our abstract submission<br>
<a href="http://2009.foss4g.org/presentations/#presentation_155" target="_blank">http://2009.foss4g.org/presentations/#presentation_155</a><br>
as below to;<br>
<br>
There is no change in the abstract. only in the presenters and bio.<br>
<br>
Sorry for the trouble and thanks in advance.<br>
<br>
Best regards<br>
<br>
Venka<br>
------------------------------------------------------------------------- <br>
<br>
Open Web Processing Services for Improving Accuracy of GPS tracks using<br>
Filtering and Map-Matching<br>
<br>
Abstract: This paper presents open geo-processing services to support<br>
co-registering the vehicle GPS traces with road network, based on open<br>
GIS standards and open source geospatial software. An integrated approach<br>
is proposed to glue open source geospatial software to provide Web Services<br>
for enhancement of GPS tracks. Map matching algorithms for vehicle tracking<br>
data are implemented using the PyWPS interface. Track-logs are stored in the<br>
PostgreSQL/PostGIS enabling handling of large volume data of road network<br>
and the Openlayers client is used to visualize the processing results. As a part<br>
of the core processes of map matching in PyWPS, specific filters of GPS tracks,<br>
related to vehicle motion characteristics, are first applied to produce high quality<br>
vehicle trajectories. Secondly, advanced curve-to-curve distance measurement<br>
algorithms - Hausdorff distance and Frechet distance are implemented in Python<br>
to perform map matching of road network. The system has been tested under dense<br>
urban road network conditions in Osaka City in Japan. The results of the experiments<br>
suggest that the Web Services are effective for retrieval of the paths from urban street<br>
network and accurate matching of tracking data form low-cost GPS tracking devices.<br>
The services implemented as a part of this research will be not only useful for vehicle<br>
tracking but also for automated update of road network and in improving quality of<br>
community driven geo-data collection initiatives such as the Open Street Map.<br>
<br>
Presenters: Xianfeng Song, Venkatesh Raghavan and Daisuke Yoshida<br>
<br>
Biography:<br>
<br>
Xianfeng Song research interest is Geo-Processing Workflow and their<br>
applications in infrastructure management and environment modeling. His<br>
current research include (1) Optimizing geospatial Web services chain<br>
based on QoS (2) SWAT model for hydrology simulation and sediment yield<br>
estimation (3)Map-Matching and LBS Services. He is presently Associate<br>
Professor at the Graduate University of Chinese Academy of Sciences.<br>
He is an active member of the OSGeo-China Chapter.<br>
<br>
Venkatesh Raghavan (Venka) has been involved in OSGeo since its<br>
inception. He was one of the Directors in the first OSGeo Board and is<br>
currently a Charter Member. He is deeply involved in OSGeo Local<br>
Chapters in Asia. Presently based in Japan as Professor of<br>
Geoinformatics at Osaka City University. His research interest<br>
include distributed geoprocessing, Sensor Net and Remote Sensing<br>
for change detection.<br>
<br>
Daisuke Yoshida is a doctoral student at the Graduate School of<br>
Creative Cities, Osaka City University and works at the Faculty of<br>
Liberal Arts, Tezukayama Gakuin University as a lecturer. He has<br>
participated on a Japanese volunteer program, JICA in the Philippines to<br>
provide technical assistance for implementing SDI prototype using<br>
FOSS4G tools. His research interests are Web-GIS development, LBS,<br>
Real-time GPS, Mobile GIS and digital archives. He has also been a<br>
FOSS4G trainer at several international workshops. He is board member<br>
OSGeo-Japan Chapter and organizer for FOSS4G-Osaka annual events.<br>
<br>
</blockquote></blockquote>
<br>
<br></div></div>
-- <br>
Cameron Shorter<br>
Geospatial Systems Architect<br>
Tel: +61 (0)2 8570 5050<br>
Mob: +61 (0)419 142 254<br>
<br>
Think Globally, Fix Locally<br>
Geospatial Solutions enhanced with Open Standards and Open Source<br>
<a href="http://www.lisasoft.com" target="_blank">http://www.lisasoft.com</a><div><div></div><div class="h5"><br>
<br>
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