The purpose of this paper is to motivate the need for modelling Contact and Perception feedback in Natural language user interfaces for Human-Robot Interaction. In a scenario where the user and the robot are co-present contact and perception feedback will increase the situational awareness of the user. One component of a such a model could be a kind of low-level user model aiming to decide the ...

This paper presents the results of a user evaluation to design a glanceable user interface presenting physical activity feedback to office workers during the workday. The feedback is presented on a central and public display next to the coffee machine in the office building. Users should be able to receive the feedback quickly and easily while getting a cup of coffee − the user interface should...

Spatial Tactile Feedback Support for Mobile Touch-screen Devices Koji Yatani Doctor of Philosophy Graduate Department of Computer Science University of Toronto 2011 Mobile touch-screen devices have the capability to accept flexible touch input, and can provide a larger screen than mobile devices with physical buttons. However, many of the user interfaces found in mobile touch-screen devices req...

Motor imagery is one common paradigm in brain computer interface (BCI) systems where the user imagines moving a part of his/her body to control a computer. Motor imagery is endogenous and requires a large amount of training for the user to be able to control the BCI. Therefore, the feedback that is provided to the user is critical to ensure informative insight into improving imagery skills. In ...

The Internet enables cheap, rapid, and large-scale distribution of software for evaluation purposes. It also presents hitherto unprecedented, and currently underutilized, opportunities for increasing user-developer communication in software development. For instance, the Internet can be used as a medium for collecting “direct” user feedback in the form of subjective user reports, as well as “in...

A multiple transmit antenna, single receive antenna (per receiver) downlink channel with limited channel feedback is considered. Given a constraint on the total system-wide channel feedback, the following question is considered: is it preferable to get low-rate feedback from a large number of receivers or to receive high-rate/high-quality feedback from a smaller number of (randomly selected) re...

This paper investigates methods for user and pseudo relevance feedback in video event retrieval. Existing feedback methods achieve strong performance but adjust the ranking based on few individual examples. We propose a relevance feedback algorithm (ARF) derived from the Rocchio method, which is a theoretically founded algorithm in textual retrieval. ARF updates the weights in the ranking funct...

In this paper, we investigate an efficient user selection and sub-band allocation algorithm in which each user transmits two-step partial CQI to reduce the amount of feedback in multi-user downlink OFDMA systems. Simulation results show that we can greatly reduce the feedback rate at the expense of negligible performance degradation compared to the full CQI feedback schemes or that we can great...

In this paper we present five user experiments on incorporating behavioural information into the relevance feedback process. In particular we concentrate on ranking terms for query expansion and selecting new terms to add to the user’s query. Our experiments are an attempt to widen the evidence used for relevance feedback from simply the relevant documents to include information on how users ar...

Statement of Problem: The current study examined specific aspects of usability of a newly developed VR Driver Rehabilitation (VR-DR) system. Method: Measures of user feedback and user-comfort were examined among 54 participants, 33 individuals with acquired brain injury [20 with traumatic brain injury (TBI) and 13 with cerebral vascular accident (CVA)] and 21 healthy controls (HC). All particip...