What Context Matters?Towards Multidimensional

Context Awareness

Víctor Penela, Carlos Ruiz, José Manuel Gómez-Pérez

iSOCO

Some background for this paper

context

=

services+

prosumer+

ubiquity

CENIT Programme(National Strategic Consortiums for

Technological Research)

4 years – 22 millions €(2008-2011)

10 Companies11 Universities

8 Research centres

context, context, context.

“Context is any information that can be used to characterize

the situation of an entity”

Dey (2000)

http://www.isoco.com/ontologies/mio/index.html

Gimmemy

context!

“Context is any information that can be used to characterize the

situation of an entity”

Dey (2000)

Bob

http://www.flickr.com/photos/papalars/

Charlie

Bob’s friends

Dave

Gordon

There’s

too much information

“It is not simply the case that something is or is not context; rather,

it may or may not be contextually

relevant to some particular activity”

Dourish (2004)

Domain independence

Dynamic adaptability

Domain independence

Dynamic adaptability

Classical Approach

Social Dimension

Google

Facebook

Activity Streams

Role Dimension

“Descriptions of individuals that a subject can assume in a specific

moment”

Steimann (2000)

http://www.flickr.com/photos/rednuht/

common role,similar interests,similar relevancy

Some Use Cases

User A is a tourist in Madrid, visiting the city for the first time.

User B is a tourist in Montreal, visiting the city for the first time.

User A is a tourist in Madrid with no contacts in the city.

User B is a tourist in Madrid with several friends in the city.

User A is a tourist in Madrid. He is doing a tour of the city by bus.

User B is a bus driver in Madrid. He is the tour of the city bus driver.

Some Apps

YWL!

Context

Twitter

miKrow

The story so far …

Classic context implementations not good enough

More information being generated requires a more complex leverage of data

Several dimensions detected

Several apps built over the system

Questions?

Thank you!