TY  - JOUR
AU  - Yordanova, Kristina
AU  - Koldrack, Philipp
AU  - Heine, Christina
AU  - Henkel, Ron
AU  - Martin, Mike
AU  - Teipel, Stefan
AU  - Kirste, Thomas
TI  - Situation Model for Situation-Aware Assistance of Dementia Patients in Outdoor Mobility.
JO  - Journal of Alzheimer's disease
VL  - 60
IS  - 4
SN  - 1387-2877
CY  - Amsterdam
PB  - IOS Press
M1  - DZNE-2020-05922
SP  - 1461-1476
PY  - 2017
AB  - Dementia impairs spatial orientation and route planning, thus often affecting the patient's ability to move outdoors and maintain social activities. Situation-aware deliberative assistive technology devices (ATD) can substitute impaired cognitive function in order to maintain one's level of social activity. To build such a system, one needs domain knowledge about the patient's situation and needs. We call this collection of knowledge situation model.To construct a situation model for the outdoor mobility of people with dementia (PwD). The model serves two purposes: 1) as a knowledge base from which to build an ATD describing the mobility of PwD; and 2) as a codebook for the annotation of the recorded behavior.We perform systematic knowledge elicitation to obtain the relevant knowledge. The OBO Edit tool is used for implementing and validating the situation model. The model is evaluated by using it as a codebook for annotating the behavior of PwD during a mobility study and interrater agreement is computed. In addition, clinical experts perform manual evaluation and curation of the model.The situation model consists of 101 concepts with 11 relation types between them. The results from the annotation showed substantial overlapping between two annotators (Cohen's kappa of 0.61).The situation model is a first attempt to systematically collect and organize information related to the outdoor mobility of PwD for the purposes of situation-aware assistance. The model is the base for building an ATD able to provide situation-aware assistance and to potentially improve the quality of life of PwD.
KW  - Awareness
KW  - Dementia: psychology
KW  - Environment
KW  - Humans
KW  - Interviews as Topic
KW  - Mobility Limitation
KW  - Models, Psychological
KW  - Orientation
KW  - Self-Help Devices
KW  - Spatial Navigation
KW  - Walking
LB  - PUB:(DE-HGF)16
C6  - pmid:29060937
C2  - pmc:PMC5676980
DO  - DOI:10.3233/JAD-170105
UR  - https://pub.dzne.de/record/139600
ER  -