Expressing Privacy Preferences in terms of Invasiveness

Dynamic context aware systems need highly flexible privacy protection mechanisms. We describe an extension to an existing RBAC-based mechanism that utilises a dynamic measure of invasiveness to determine whether contextual information should be released

Mediating Intimacy: Digital Kisses and Cut and Paste Hugs

Interest in personal and domestic technology is growing rapidly. In this paper, we explore what it means to understand and support the most personal of human acts - maintaining intimacy between family members. Intimate acts are different to other domestic behaviours; are challenging to study; and, we speculate, provide opportunities for technologies quite different in form and purpose to those appropriate for other aspects of home life

Multi-Level Reconfiguration in the DANAH Assistive System

International audienceNowadays, interaction with our surrounding environment has increased due to the presence of numerous devices that provide us with services. This is especially true in Smart Homes and can be of great help for the disabled people and the elderly that can no longer perform daily tasks they used to. However, in case of failure, corrective actions can be heavy to take, thus the need for the system to recover by itself and ensure service availability. Service availability is provided through service reconfiguration. This papers deals with service reconfiguration in smart homes. It presents a multi-level approach in which both off-line and on-line reconfiguration schemes are used to gradually recover from failed services. Static, effect-based, path and resource reconfiguration levels are described. They have been successfully implemented in the DANAH assistive system, which combines both navigation and service provision for smart homes

Visual Scoping of Private Information Displayed on Shared Tabletop Surfaces

Informations sharing in meetings or conference calls are often done by displaying the information on a shared display, e.g. a projected or shared display, or a shared surface as a table. The amount of information on the shared surface may increase, and the clutter makes the relevant information hidden or hard to find. One challenge for current systems is to filter out the information without interest. Another challenge is adding information. For most current system, as information is added, it distracts the other participants as parts of the display is obstructed, or activity elsewhere on the display draws undesired activity. In this paper, we describe a novel system that fixes these challenges by filtering out unwanted information, or superimposing information that should not be displayed to everyone on a private display, thus providing a useful way of only working with the information of interest

Percepcija u inteligentnim prostorima: kombinirana primjena distribuiranih i robotskih senzora

This work considers the joint use of robot onboard sensors and a network of sensors distributed in the environment for tracking the position of the robot and other objects. This is motivated by our research on Intelligent Spaces, which combine the use of distributed sensors with mobile robots to provide various services to users. Here we analyze the distributed sensing using the extended information filter and computation issues that arise due to correlations between estimates. In turn we show how the correlations can be resolved with the use of Covariance Intersection at a cost of conservative estimates, and analyze two special cases where the issues related to correlations can be reduced.Ovaj rad razmatra kombiniranu primjenu senzora na mobilnim robotima i mreže senzora distribuiranih u prostoru za praćenje položaja robota i ostalih objekata. Rad je dio istraživanja o "inteligentnim prostorima", gdje se koriste distribuirani senzori i mobilni roboti sa svrhom pružanja različitih usluga korisnicima prostora. Analizirana je upotreba proširenog informacijskog filtra za distribuiranu percepciju te računski problem uzrokovan korelacijama u procesu estimacije. Potom je objašnjeno rješenje problema korelacija korištenjem metode presjeka kovarijanci (Covariance Intersection), koje međutim daje konzervativne rezultate, te je dana analiza dva specijalna slučaja kod kojih je moguće ublažiti utjecaj korelacija

Composing Measures for Computing Text Similarity

We present a comprehensive study of computing similarity between texts. We start from the observation that while the concept of similarity is well grounded in psychology, text similarity is much less well-defined in the natural language processing community. We thus define the notion of text similarity and distinguish it from related tasks such as textual entailment and near-duplicate detection. We then identify multiple text dimensions, i.e. characteristics inherent to texts that can be used to judge text similarity, for which we provide empirical evidence. We discuss state-of-the-art text similarity measures previously proposed in the literature, before continuing with a thorough discussion of common evaluation metrics and datasets. Based on the analysis, we devise an architecture which combines text similarity measures in a unified classification framework. We apply our system in two evaluation settings, for which it consistently outperforms prior work and competing systems: (a) an intrinsic evaluation in the context of the Semantic Textual Similarity Task as part of the Semantic Evaluation (SemEval) exercises, and (b) an extrinsic evaluation for the detection of text reuse. As a basis for future work, we introduce DKPro Similarity, an open source software package which streamlines the development of text similarity measures and complete experimental setups

Design methods for ethical persuasive computing

Value Sensitive Design and Participatory Design are two methodological frameworks that account for ethical issues throughout the process of technology design. Through analysis and case studies, this paper argues that such methods should be applied to persuasive technology—computer systems that are intended to change behaviors and attitudes

Audio-enhanced collaboration at an interactive electronic whiteboard

Presented at the 7th International Conference on Auditory Display (ICAD), Espoo, Finland, July 29-August 1, 2001.This paper describes an experimental setup to investigate new possibilities to support cooperative work of a team with audio feedback on a large interactive electronic whiteboard, called DynaWall®. To enrich the interaction and the feedback qualities within a team work situation the DynaWall is equipped with a set of loudspeakers which are invisibly integrated into the environment. Different forms of audio feedback are realized and discussed to meet the requirements for collaborative team work situations. An audio feedback for a gesture interface with sound cues is implemented to improve the use of gestures to execute commands. Furthermore a spatial sound property of moved and thrown information objects on the surface of the otherwise silent electronic whiteboard is introduced to add an imitated natural sound behavior. The focus of the setup is to experiment with sound feedback for a non-standard computer environment useful in a cooperative team work situation