Social network analysis has emerged as a powerful method for understanding the importance of relationships among interacting units in a variety of domains. However, interactive exploration of social networks is challe...
详细信息
ISBN:
(纸本)1595932984
Social network analysis has emerged as a powerful method for understanding the importance of relationships among interacting units in a variety of domains. However, interactive exploration of social networks is challenging because: (1) it is difficult to comprehend the characteristics and structure of networks when there are many edges and nodes, and (2) current systems are often a medley of statistical methods and overwhelming visual output which leaves many analysts uncertain about how to explore in an orderly manner. This results in exploration that is largely opportunistic. The contributions of our work are principles and an interface to support systematic analysis of social networks. We believe our approach will enable users to better understand the structure of networks and the social groups within.
In this paper we describe a novel approach for searching large data sets from a mobile phone. Existing interfaces for mobile search require keyword text entry and are not suited for browsing. Our alternative uses a hy...
详细信息
ISBN:
(纸本)1595931783
In this paper we describe a novel approach for searching large data sets from a mobile phone. Existing interfaces for mobile search require keyword text entry and are not suited for browsing. Our alternative uses a hybrid model to de-emphasize tedious keyword entry in favor of iterative data filtering. We propose navigation and selection of hierarchical metadata (facet navigation), with incremental text entry to further narrow the results. We conducted a formative evaluation to understand the relative advantages of keyword entry versus facet navigation for both browse and search tasks on the phone. We found keyword entry to be more powerful when the name of the search target is known, while facet navigation is otherwise more effective and strongly preferred. Copyright 2006 ACM.
This paper reports the results of work in the final no-cost extension year of a digital government project that developed user interface models and prototypes to help people find and understand government statistics;p...
详细信息
This paper reports the results of work in the final no-cost extension year of a digital government project that developed user interface models and prototypes to help people find and understand government statistics;proposed a Statistical Knowledge Network architecture that supports cross agency information access;and demonstrated models for government-academic collab.ration.
With the availab.lity of affordable new desktop fabrication techniques such as 3D printing and laser cutting, physical models are used increasingly often during the architectural and industrial design cycle. Models ca...
详细信息
ISBN:
(纸本)1595933131
With the availab.lity of affordable new desktop fabrication techniques such as 3D printing and laser cutting, physical models are used increasingly often during the architectural and industrial design cycle. Models can easily be annotated to capture comments, edits and other forms of feedback. Unfortunately, these annotations remain in the physical world and cannot be easily transferred back to the digital world. Here we present a simple solution to this problem based on a tracking pattern printed on the surface of each model. Our solution is inexpensive, requires no tracking infrastructure or per object calibration, and can be used in the field without a computer nearby. It lets users not only capture annotations, but also edit the model using a simple yet versatile command system. Once captured, annotations and edits are merged into the original CAD models. There they can be easily edited or further refined. We present the design of a SolidWorks plug-in implementing this concept, and report initial feedback from potential users using our prototype. We also present how this prototype could be extended seamlessly to a fully functional system using current 3D printing technology. Copyright 2006 ACM.
Our goal is to define a list of tasks for graph visualization that has enough detail and specificity to be useful to: 1) designers who want to improve their system and 2) to evaluators who want to compare graph visual...
详细信息
ISBN:
(纸本)1595935622
Our goal is to define a list of tasks for graph visualization that has enough detail and specificity to be useful to: 1) designers who want to improve their system and 2) to evaluators who want to compare graph visualization systems. In this paper, we suggest a list of tasks we believe are commonly encountered while analyzing graph data. We define graph specific objects and demonstrate how all complex tasks could be seen as a series of low-level tasks performed on those objects. We believe that our taxonomy, associated with benchmark datasets and specific tasks, would help evaluators generalize results collected through a series of controlled experiments. Copyright 2006 ACM.
This paper describes a two-phase study conducted to determine optimal target sizes for one-handed thumb use of mobile handheld devices equipped with a touch-sensitive screen. Similar studies have provided recommendati...
详细信息
ISBN:
(纸本)1595933905
This paper describes a two-phase study conducted to determine optimal target sizes for one-handed thumb use of mobile handheld devices equipped with a touch-sensitive screen. Similar studies have provided recommendations for target sizes when using a mobile device with two hands plus a stylus, and interacting with a desktop-sized display with an index finger, but never for thumbs when holding a small device in a single hand. The first phase explored the required target size for single-target (discrete) pointing tasks, such as activating buttons, radio buttons or checkboxes. The second phase investigated optimal sizes for widgets used for tasks that involve a sequence of taps (serial), such as text entry. Since holding a device in one hand constrains thumb movement, we varied target positions to determine if performance depended on screen location. The results showed that while speed generally improved as targets grew, there were no significant differences in error rate between target sizes ≥ 9.6 mm in discrete tasks and targets ≥ 7.7 mm in serial tasks. Along with subjective ratings and the findings on hit response variability, we found that target size of 9.2 mm for discrete tasks and targets of 9.6 mm for serial tasks should be sufficiently large for one-handed thumb use on touchscreen-based handhelds without degrading performance and preference. Copyright 2006 ACM.
Through a study of field biology practices, we observed that biology fieldwork generates a wealth of heterogeneous information, requiring substantial lab.r to coordinate and distill. To manage this data, biologists le...
详细信息
ISBN:
(纸本)1595931783
Through a study of field biology practices, we observed that biology fieldwork generates a wealth of heterogeneous information, requiring substantial lab.r to coordinate and distill. To manage this data, biologists leverage a diverse set of tools, organizing their effort in paper notebooks. These observations motivated ButterflyNet, a mobile capture and access system that integrates paper notes with digital photographs captured during field research. Through ButterflyNet, the activity of leafing through a notebook expands to browsing all associated digital photos. ButterflyNet also facilitates the transfer of captured content to spreadsheets, enabling biologists to share their work. A first-use study with 14 biologists found this system to offer rich data capture and transformation, in a manner felicitous with current practice. Copyright 2006 ACM.
From a topological model of a working environment, MIGRIXML automatically generates a virtual reality environment for controlling the run-time migration of a graphical user interface from one computing platform to ano...
详细信息
ISBN:
(纸本)1595932879
From a topological model of a working environment, MIGRIXML automatically generates a virtual reality environment for controlling the run-time migration of a graphical user interface from one computing platform to another one (e.g., from a desktop to a pocket computer), from one interaction surface to another (e.g., from a laptop to a wall screen) at run-time. For this purpose, any user interface subject to migration is described in USer Interface extensible Markup Language regarding its look & feel as well as the platforms and the surfaces involved in the migration. Each interface, in part or in whole, can be attached to a platform or a surface, detached from it, and migrated across platforms or interaction surfaces. Instead of communicating data and code during the migration, the description of the user interface of concern is wirelessly passed from one platform to another one to be regenerated on the target platform. To ensure a continuous control of the run-time migration, MIGRIXML automatically generates a world model representing the context of use where the source/target platforms/interaction surfaces are represented. Finally, migrating a user interface becomes as natural as its direct manipulation from one platform to another exactly in the same way as it is done on a single platform. Copyright 2006 ACM.
computer Supported Collab.rative Learning activities involve combination of complex software tools that often need to interoperate in a wider context of learning. This paper proposes a data model that accommodates req...
详细信息
This paper describes research that investigates the use of a technology designed to support young children's collab.rative artifact creation in outdoor environments. Collab.ration while creating knowledge artifact...
详细信息
This paper describes research that investigates the use of a technology designed to support young children's collab.rative artifact creation in outdoor environments. Collab.ration while creating knowledge artifacts is an important part of children's learning, yet it can be limited while exploring outdoors. The construction of a joint representation often occurs in the classroom after the experience, where further investigation and observation of the environment is not possible. This paper describes a research study where collab.rative technology was developed, used by children, and evaluated in an authentic setting - a U.S. National Park. Copyright 2006 ACM.
暂无评论