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1.
The Stanford Event Heap has been shown to provide appropriate support for constructing interactive workspace applications. Given this success it is natural to consider the Event Heap as a platform to support other classes of Ubiquitous Computing applications. In this paper we argue that the distributed, spontaneous nature of these applications places additional demands on the Event Heap that require extensions to both the engineering and API. Suitable extensions are described and their use to support a typical Ubicomp application is discussed.
Oliver Storz (Corresponding author)Email:
Adrian FridayEmail:
Nigel DaviesEmail:
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2.
Multimodal support to group dynamics   总被引:1,自引:1,他引:0  
The complexity of group dynamics occurring in small group interactions often hinders the performance of teams. The availability of rich multimodal information about what is going on during the meeting makes it possible to explore the possibility of providing support to dysfunctional teams from facilitation to training sessions addressing both the individuals and the group as a whole. A necessary step in this direction is that of capturing and understanding group dynamics. In this paper, we discuss a particular scenario, in which meeting participants receive multimedia feedback on their relational behaviour, as a first step towards increasing self-awareness. We describe the background and the motivation for a coding scheme for annotating meeting recordings partially inspired by the Bales’ Interaction Process Analysis. This coding scheme was aimed at identifying suitable observable behavioural sequences. The study is complemented with an experimental investigation on the acceptability of such a service.
Fabio Pianesi (Corresponding author)Email:
Massimo ZancanaroEmail:
Elena NotEmail:
Chiara LeonardiEmail:
Vera FalconEmail:
Bruno LepriEmail:
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3.
To date, the majority of recommender systems (RSs) work on a single domain, such as exclusively for movies, books, etc. However, human preferences may span across multiple domains. Hence, consumption behaviors on related items from different domains can be useful to inform RS to make recommendations. This paper reports our efforts on uncovering the association between user preferences on related items across domains. In addition, we have also tested collaborative filtering technique on our cross-domain dataset for which results are reported here.
Tiffany TangEmail:
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4.
This paper describes the simulated car racing competition that was arranged as part of the 2007 IEEE Congress on Evolutionary Computation. Both the game that was used as the domain for the competition, the controllers submitted as entries to the competition and its results are presented. With this paper, we hope to provide some insight into the efficacy of various computational intelligence methods on a well-defined game task, as well as an example of one way of running a competition. In the process, we provide a set of reference results for those who wish to use the simplerace game to benchmark their own algorithms. The paper is co-authored by the organizers and participants of the competition.
Julian Togelius (Corresponding author)Email:
Simon LucasEmail:
Ho Duc ThangEmail:
Jonathan M. GaribaldiEmail:
Tomoharu NakashimaEmail:
Chin Hiong TanEmail:
Itamar ElhananyEmail:
Shay BerantEmail:
Philip HingstonEmail:
Robert M. MacCallumEmail:
Thomas HaferlachEmail:
Aravind GowrisankarEmail:
Pete BurrowEmail:
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5.
Connecting the family with awareness systems   总被引:1,自引:1,他引:0  
Awareness systems have attracted significant research interest for their potential to support interpersonal relationships. Investigations of awareness systems for the domestic environment have suggested that such systems can help individuals stay in touch with dear friends or family and provide affective benefits to their users. Our research provides empirical evidence to refine and substantiate such suggestions. We report our experience with designing and evaluating the ASTRA awareness system, for connecting households and mobile family members. We introduce the concept of connectedness and its measurement through the Affective Benefits and Costs of communication questionnaire (ABC-Q). We inform results that testify the benefits of sharing experiences at the moment they happen without interrupting potential receivers. Finally, we document the role that lightweight, picture-based communication can play in the range of communication media available.
Natalia Romero (Corresponding author)Email:
Panos MarkopoulosEmail:
Joy van BarenEmail:
Boris de RuyterEmail:
Wijnand IJsselsteijnEmail:
Babak FarshchianEmail:
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6.
An important area of Human Reliability Assessment in interactive systems is the ability to understand the causes of human error and to model their occurrence. This paper investigates a new approach to analysis of task failures based on patterns of operator behaviour, in contrast with more traditional event-based approaches. It considers, as a case study, a formal model of an Air Traffic Control system operator’s task which incorporates a simple model of the high-level cognitive processes involved. The cognitive model is formalised in the CSP process algebra. Various patterns of behaviour that could lead to task failure are described using temporal logic. Then a model-checking technique is used to verify whether the set of selected behavioural patterns is sound and complete with respect to the definition of task failure. The decomposition is shown to be incomplete and a new behavioural pattern is identified, which appears to have been overlooked in the informal analysis of the problem. This illustrates how formal analysis of operator models can yield fresh insights into how failures may arise in interactive systems.
Antonio Cerone (Corresponding author)Email:
Simon ConnellyEmail:
Peter LindsayEmail:
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7.
Reality mining: sensing complex social systems   总被引:17,自引:5,他引:12  
We introduce a system for sensing complex social systems with data collected from 100 mobile phones over the course of 9 months. We demonstrate the ability to use standard Bluetooth-enabled mobile telephones to measure information access and use in different contexts, recognize social patterns in daily user activity, infer relationships, identify socially significant locations, and model organizational rhythms.
Alex (Sandy) PentlandEmail:
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8.
Quantitative usability requirements are a critical but challenging, and hence an often neglected aspect of a usability engineering process. A case study is described where quantitative usability requirements played a key role in the development of a new user interface of a mobile phone. Within the practical constraints of the project, existing methods for determining usability requirements and evaluating the extent to which these are met, could not be applied as such, therefore tailored methods had to be developed. These methods and their applications are discussed.
Timo Jokela (Corresponding author)Email:
Jussi KoivumaaEmail:
Jani PirkolaEmail:
Petri SalminenEmail:
Niina KantolaEmail:
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9.
Nowadays data mining plays an important role in decision making. Since many organizations do not possess the in-house expertise of data mining, it is beneficial to outsource data mining tasks to external service providers. However, most organizations hesitate to do so due to the concern of loss of business intelligence and customer privacy. In this paper, we present a Bloom filter based solution to enable organizations to outsource their tasks of mining association rules, at the same time, protect their business intelligence and customer privacy. Our approach can achieve high precision in data mining by trading-off the storage requirement. This research was supported by the USA National Science Foundation Grants CCR-0310974 and IIS-0546027.
Ling Qiu (Corresponding author)Email:
Yingjiu LiEmail:
Xintao WuEmail:
  相似文献   

10.
ONTRACK: Dynamically adapting music playback to support navigation   总被引:3,自引:3,他引:0  
Listening to music on personal, digital devices whilst mobile is an enjoyable, everyday activity. We explore a scheme for exploiting this practice to immerse listeners in navigation cues. Our prototype, ONTRACK, continuously adapts audio, modifying the spatial balance and volume to lead listeners to their target destination. First we report on an initial lab-based evaluation that demonstrated the approach’s efficacy: users were able to complete tasks within a reasonable time and their subjective feedback was positive. Encouraged by these results we constructed a handheld prototype. Here, we discuss this implementation and the results of field-trials. These indicate that even with a low-fidelity realisation of the concept, users can quite effectively navigate complicated routes.
Matt Jones (Corresponding author)Email:
Steve JonesEmail:
Gareth BradleyEmail:
Nigel WarrenEmail:
David BainbridgeEmail:
Geoff HolmesEmail:
  相似文献   

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