Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Promises and Challenges of Ambient Assisted Living Systems   The population of elderly people keeps increasing rapidly, which becomes a
predominant aspect of our societies. As such, solutions both efficacious and
cost-effective need to be sought. Ambient Assisted Living (AAL) is a new
approach which promises to address the needs from elderly people. Ambient
Intelligence technologies are widely developed in this domain aiming to
construct safe environments around assisted peoples and help them maintain
independent living. However, there are still many fundamental issues in AAL
that remain open. Most of the current efforts still do not fully express the
power of human being, and the importance of social connections and social
activities is less noticed. Our conjecture is that such features are
fundamental prerequisites towards truly effective AAL services. This paper
reviews the current status of researches on AAL, discusses the promises and
possible advantages of AAL, and also indicates the challenges we must meet in
order to develop practical and efficient AAL systems for elderly people. In
this paper, we also propose an approach to construct effective home-care system
for the elderly people.

25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph