Usability is a fundamental requirement for natural language interfaces. Usability evaluation reflects the impact of the interface and the acceptance from the users. This work examines the potential of usability evaluation in terms of issues and methodologies for spoken dialogue interfaces along with the appropriate designer-needs analysis. It unfolds the perspective to the usability integration...

BACKGROUND Recent research shows that the prevalence of patients with very severe chronic obstructive pulmonary disease (COPD), congestive heart failure (CHF) and chronic renal failure (CRF) continues to rise over the next years. Scientific studies concerning self-perceived symptoms and care needs in patients with severe to very severe COPD, CHF and CRF are scarce.Consequently, it will be diffi...

We will show a sensor based mobile phone prototype that supports personal narrative for children with complex communication needs. We will demonstrate how the phone is used to capture voice recordings and information about location, people and objects using RFID tags and QR stickers. The challenging environment of a special school for prototype testing will be discussed using real life experien...

As the current Semantic Web (SW) activities focus mainly on making the Web machine understandable, the end-user needs are often neglected. Providing an appropriate entry point for the enduser to the technologies introduced by the SW activity would be beneficial both for the end-users and the SW developers. Taking advantage of the semantic descriptions available on the SW endusers would achieve ...

The databases store data that may be subjected to missing values either in data acquisition or data storage process. The proposed approach uses the widely used optimization technique called genetic algorithm for the NMAR (Not Missing At Random) missing mechanism which prevails more in real life that are non-ignorable. Since the non-ignorable mechanism needs prior