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Communications of the ACM

71 - 80 of 164 for bentley

From the small to the large: learnings from the deployment of serendipitous family stories /

Research in the large is quite different from the more traditional small-scale field studies conducted in Ubicomp over the past decade. Large scale studies are not just small scale ones with a larger n, they allow researchers to answer fundamentally different questions about use and adoption and enable the studying of systems in real and messy social networks and situations. However, conducting large-scale research often requires large-scale resources. We present the evolution of the Serendipitous Family Stories system into and discuss how large-scale research required 5x more time and effort to prepare a system for a field trial.


Promoting intergenerational communication through location-based asynchronous video communication

We describe the design and field evaluation of the Serendipitous Family Stories system, a web and mobile service that allows for videos to be saved in user-specified real-world locations, shared with friends and family, and then serendipitously discovered as those people approach the location of a story. Through a twenty-participant field evaluation, we discovered how this new form of location-based asynchronous communication can be used to strengthen family relationships by encouraging communication across generations and enhancing users' relationships with everyday places in their lives.


2nd workshop on research in the large. using app stores, wide distribution channels and big data in ubicomp research

With the proliferation of app stores and the advancement of mobile devices, research that might have only been tested with a dozen participants in the past can now be released to millions. This offers huge opportunities, but also requires adaptations of existing methods in dealing with large deployments and making sense of large data sets. This workshop provides a forum for researchers to exchange experiences and strategies for wide distribution of applications as well as gathering and analyzing large scale data sets.


Mobile wellness: collecting, visualizing and interacting with personal health data

Mobile devices are now able to connect to a variety of sensors and provide personalized information to help people reflect on and improve their health. For example, pedometers, heart-rate sensors, glucometers, and other sensors can all provide real-time data to a variety of devices. Collecting and interacting with personal health or well-being data is a growing research area. This workshop will focus on the ways in which our mobile devices can aggregate and visualize these types of data and how these data streams can be presented to encourage interaction, increased awareness and positive behavior change.


Rank-based dimension reduction for many-criteria populations

Interpreting individuals described by a set of criteria can be a difficult task when the number of criteria is large. Such individuals can be ranked, for instance in terms of their average rank across criteria as well as by each distinct criterion. We therefore investigate criteria selection methods which aim to preserve the average rank of individuals but with fewer criteria. Our experiments show that these methods perform effectively, identifying and removing redundancies within the data, and that they are best incorporated into a multi-objective algorithm.


Evolving relationships between social networks and stakeholder involvement in software projects

Software projects often fail because stakeholder communication and involvement are inadequate. This paper proposes a novel method to understand project social networks and their corresponding stakeholder involvement. The method uses five types of model social network, which represent various types of stakeholder activity in a project. It exploits evolutionary computation to correlate the social network of a real software project against each model. Experiments show that the real project most resembles the "rational" model where stakeholders who are more highly connected in the social network are more involved in the project.


Video interaction - making broadcasting a successful social media

Video has slowly been gaining popularity as a social media. We are now witnessing a step where capture and live broadcasts is released from the constraints of the desktop computer, which further accentuate issues such as video literacy, collaboration, hybridity, utility and privacy, that needs to be addressed in order to make video useful for large user groups.


NCATE standards for preparation of secondary computer science teachers

This special session serves two purposes. It provides a progress report on the revision of the NCATE Standards for the Preparation of Secondary Computer Science Teachers and seeks input from computing education professionals on the proposed revisions. The Standards and their role in evaluating teacher preparation programs will be explained, the proposed revision discussed, and process for providing input explained.


So you want to run a film festival?

In an effort to promote awareness of and increase enrollment in the Division of Arts and Humanities, the Harvard Short Film Festival, a University-wide competition of three-minute short films about scholarly research and teaching, was launched in spring 2010.

Recent advances in media software now make it possible for someone equipped with just a personal computer, a digital camera, and some short software tutorials to compose compelling multimedia presentations that earlier required extensive training and costly equipment. Not the least of the changes implicit in this new technology is the promise of radically altered horizons in intellectual life---the development of new, more aesthetically rich modes of exposition in which the message expressed by words is blended with the implicit meanings and powerful affect conveyed by images and music.

This paper will outline the necessary marketing and technology considerations required to successfully support a film festival in an academic environment


Serendipitous family stories: using findings from a study on family communication to share family history

Storytelling and sharing family histories are important parts of what it means to "be" a family. Based on results from a study on intergenerational communication over a distance, we created the Serendipitous Family Stories system. The service allows family members to create visual and audio stories about places of importance in their lives and for their relatives to discover them serendipitously as they go about their lives. We will describe the motivation for the application and explain its functionality. Results from a field study are forthcoming.