2nd Ubiquitous City Seminar 2010: From ? to ?

The seven topics are disucssed in this semainar, most of them are high level view and give highlights on what tutors are going to cover in the next three days.

1. Prof Marcus talked on Urban Informatics and Sustainable cities. During the talk he mentioned that Urban informatics is a young field of study, covering communities and technology - people, place and technology.

He listed some projects (I forget the names) he worked and going to work. Now he proposes to use ubiquitous technology for reducing the carbon foot print and promoting good food culture in terms of GREEN, FIT and FUN.

2. Prof Mikael on Interactive Textures - rethinking materiality.

The computing technology is evoloved from GUI(semiotic turn), ubiquitous computing(immaterial turn), and tangible computing(material turn). He ended up with Texture as a relational lanaguage - composition, connection, competition and compromise.

3. Prof Anind dey on Real World Context-aware systems.
He presents his understanding of UbiComp - computing embedded into everyday objects and environments enhancing everyday activity. Growing pains with context systems are privacy, evalution, error, development/end user support, Intelligent. [Hold Grials with intent, human acitivity].

Context is an abstaction/apporximation for human intention.


4. Dr Zach on IP based wireless sensor network. He presented initially his vision on Internet of things - in terms of size - 10 into 12. Then He mentioned about relevant standardization issues with WSN (see the image below.).

He is leading two deployment work in Oulu - UBI- Advanced Metering Infrastruture for Univerisity of Oulu and deplying 6LoWPAN access points in Oulu city.

5. Dr Jurgen Scheible on Creating and Sharing Artistic Expereinces with Ubiquitous Technology.

He is a media artist and tries to provide tools for digitals painting in urban environments. Basically, mobile device is a basic tool for creating artisitic expereince. Some of the his project are MobiLenin, Mobi Toss, Manhatten story mashpup and Mobi spray.

He goes with his mobile phone, projectors and generators, tries to draw artistic work in public place. Main take away from this talk is .

6. Adam Greenfield on Elements of a networked urbanism.

He wrote a book called EVERYWHERE. His intention is to consider the changes in the design of network urban. The changes are :

A. From Component to resource.

B. From costant to variable.

C. from latent to explicit.

D. From held to share.

E. From expiring to persist.

F. From browse to search.

G. From anonymous to knowable.

H. From deferred to realtime.

I. From passive to interactive.

J. From object to service.

K. From ownership to use.

L. From vehicle to transmobility.

M. From work to coworking.

N. From community to network.

O. From presence to performce.

P. from consume to constituent.

He ended up with a statement of Victor Hugo >.

7. Prof Vassilis Kostakos on Urban Social Network analysis. He is interested on modelling (describe) and prediction. In his talk , he mentioned that

system= computer + human + location. City is a system.

8. Prof Timo Ojala on Open UbiquitousOulu version 2. He is the orgainser of the summer school, and is leading the project to deploy public screen in the Oulu city. Prof Timo is giving the lecture (see the image below)

Two of my friends are keen to know what UBI Display provides (see the image below).

Most of their work on UBI program are published and papers can be found here. It is good opportunity for researcher to explore and enhance (may be later, by deploying new concept/serivces) this real runtime system.

UBI Summer School 2010

I reached Oulu on 29th May, 2010 for attending the summer school for one week, arranged by the UrBan Interactions program.

Mingling with Oulu:

Oulu is a small and peaceful city in Finland. I visited almost important places such as
Oulu Cathedral (Lutheran), science center, market sqares in Oulu. People are generally speaking English. I have started meeting my friends who are coming to same summer school. So far I met three Italians, one Romanian, one Polish and one Canadian.

I try to learn hello and thank you (kiitos) in Finnish.

Technical Discussion:

I met two peope today morning and they were disucssing with me about their topics.
It seems they are focusing on Internet of things in two different perspectives such as self-managing aspect and routing using IP and MAC layer cooperation.

I met two friends (my room mates) from Sweden (Dogan) and Poland (Maciej). One paper from Dogan is very interesting titled Efficient Appplication intergration in IP based sensors network.

Summer school Program:

There are six differnet aspects focusing in this workshop. The topics are real world context-aware systems, urban-informatics and sustainable cities, urban social network analysis, creating and sharing artistic experience with ubiquitous technology, IP based wireless sensor network, and Interactive textures - rethinking materiality. More information about this program can found in here.

I expect that monday plenary session will provide an abstract view on emerging urban computing paradigm. It is not clear what oppotunities and challenges around urban computng exist.

I will attend on IP based wireless sensor network session, lectured by Zach Shelby. He will inspire me by his technical expert and entrepreneurial skill.

Web Socket and Jetty Error

Today I compiled the source code of WebSocketChatServlet and Web Socket (around sic java files in org.eclipse.jetty.websocket). I was able to make a war and deployed into the Jetty 7.0.2 server.

When I run the Web Socket chat application, I am getting runtime error..

>>>

java.lang.NullPointerException

at org.eclipse.jetty.websocket.WebSocketFactory.upgrade(WebSocketFactory

.java:92)

at org.eclipse.jetty.websocket.WebSocketServlet.service(WebSocketServlet

.java:60).

At line 92 of WebSocketFactory is a

ConnectedEndPoint endp = (ConnectedEndPoint)http.getEndPoint();

I don't know why it is throwing the line.

I guess I miss one or two jar files, I dont have idea what is exactly. If you know please write to me.

In Lib folder, I have six jars:

1. Jetty-Continuation.

2. Jetty Http

3. Jetty-io

4. Jetty-Server

5. Jetty-Servlets

6. Jetty-util

I will edit Web Socket java files and try to add more on this concept.