Exploratory analysis of multidimensional data sets is challenging because of the difficulty in comprehending more than three dimensions. Two fundamental statistical principles for the exploratory analysis are (1) to e...
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Exploratory analysis of multidimensional data sets is challenging because of the difficulty in comprehending more than three dimensions. Two fundamental statistical principles for the exploratory analysis are (1) to examine each dimension first and then find relationships among dimensions, and (2) to try graphical displays first and then find numerical summaries (D.S. Moore, (1999). We implement these principles in a novel conceptual framework called the rank-by-feature framework. In the framework, users can choose a ranking criterion interesting to them and sort 1D or 2D axis-parallel projections according to the criterion. We introduce the rank-by-feature prism that is a color-coded lower-triangular matrix that guides users to desired features. Statistical graphs (histogram, boxplot, and scatterplot) and information visualization techniques (overview, coordination, and dynamic query) are combined to help users effectively traverse 1D and 2D axis-parallel projections, and finally to help them interactively find interesting features
This work proposes a user-oriented approach as a basis for proper information visualization in the production automation area. A total consideration of the user consists of analyzing his tasks, context and profile. In...
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This work proposes a user-oriented approach as a basis for proper information visualization in the production automation area. A total consideration of the user consists of analyzing his tasks, context and profile. In order to implement this in the visualization process, an intelligent framework that is based on a multi agent system is developed. The advantage is that the tasks can be distributed to several small and manageable agents. The long term objective is to develop a working platform for the user-oriented information visualization.
Within the software development process, reuse at the requirements level has become an increasingly more compelling notion. Following a human-centric approach, this work focuses on both requirements and design solutio...
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Within the software development process, reuse at the requirements level has become an increasingly more compelling notion. Following a human-centric approach, this work focuses on both requirements and design solution reuse using a design knowledge repository. In recent years, many improvements have been made to increase reuse through design knowledge repositories, but retrieval of knowledge in the context of design activities continues to be a formidable challenge. We propose a new system, called CERVi, to browse a repository through visualization by exploiting relationships between units of knowledge (in our case, claims). These relationships are key to finding the most appropriate reusable knowledge based on design conditions. Testing shows that CERVi enhances the design knowledge selection process and helps users proceed through structured design decision making. Our approach would be most useful to those interested in unlocking the potential of design knowledge reuse.
Empirical experience and observations have shown us when powerful and highly tunable classifiers such as maximum entropy classifiers, boosting and SVMs are applied to language processing tasks, it is possible to achie...
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We introduce a conservative error correcting model, Stacked TBL, that is designed to improve the performance of even high-performing models like boosting, with little risk of accidentally degrading performance. Stacke...
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ISBN:
(纸本)2951740816
We introduce a conservative error correcting model, Stacked TBL, that is designed to improve the performance of even high-performing models like boosting, with little risk of accidentally degrading performance. Stacked TBL is particularly well suited for corpus-based natural language applications involving high-dimensional feature spaces, since it leverages the characteristics of the TBL paradigm that we appropriate. We consider here the task of automatically annonating named entities in text corpora. The task does pose a number of challenges for TBL, to which there are some simple yet effective solutions. We discuss the empirical behavior of Stacked T BL, and consider evidence that despite its simplicity, more complex and time-consuming variants are not generally required.
We explore and extend the metaphor of "piles" to include computationally-enriched piles, portable regions of automation in Dynapad, a multiscale workspace. We describe these collection-management tools and h...
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We explore and extend the metaphor of "piles" to include computationally-enriched piles, portable regions of automation in Dynapad, a multiscale workspace. We describe these collection-management tools and how their design was informed by observing people organizing collections of personal digital photographs
This paper contains a description of MODeLeR, a Multimedia Object Design Learning Resource. The impetus for the creation of MODeLeR was to provide an authentic learning environment for the study of object-oriented des...
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ISBN:
(纸本)1581137982
This paper contains a description of MODeLeR, a Multimedia Object Design Learning Resource. The impetus for the creation of MODeLeR was to provide an authentic learning environment for the study of object-oriented design to augment intermediate level programming classes. The Resource affords active, collaborative learning experiences in object modeling with the goal of helping students to gain design capabilities in UML and to appreciate the need for design that they often do not perceive since the programs they write are relatively small. Students typically create several different UML diagrams. This paper describes the MODeLeR environment and a pilot study in its use. This paper contains results of both a quantitative study and a qualitative evaluation of the Resource. Copyright 2004 ACM.
As speech interfaces become more prevalent, it is becoming more crucial that they be developed in a way that minimizes cognitive load for users. One major barrier to creating systems that are more human-centered has b...
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As speech interfaces become more prevalent, it is becoming more crucial that they be developed in a way that minimizes cognitive load for users. One major barrier to creating systems that are more human-centered has been the lack of an accepted online methodology for directly evaluating the cognitive resource demands of different systems. The present study extends a classic tool from cognitive psychology, the dual-task paradigm, to speech interface evaluation. Participants follow simple instructions generated by a system, while simultaneously monitoring for a simple visual probe. Performance on the monitoring task is used as a measure of cognitive resource demands;whenever language understanding is more demanding, performance on the monitoring task suffers. In the present study we used this methodology to investigate patterns of reference generation and how they impact human understanding.
We present the first known result for named entity recognition (NER) in realistic large-vocabulary spoken Chinese. We establish this result by applying a maximum entropy model, currently the single best known approach...
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The goal of this panel is to discuss theoretical and methodological approaches that may inform and support the design of temporal aspects of interactive systems. Time Design is an emerging research and development dom...
The goal of this panel is to discuss theoretical and methodological approaches that may inform and support the design of temporal aspects of interactive systems. Time Design is an emerging research and development domain that emphasizes the functional, causal role of time in human control behavior. It draws on a diverse literature on time in cognitive psychology, psychophysics, sociology, computerscience, engineering, human Factors and HCI. Relevant research domains include heuristics and biases in temporal decisions, temporal aspects of human-automation interaction, planning and scheduling, visualisation of temporal information, and the timing of alarms and interruptions.
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