Results 1 - 10
of
163
The eyes have it: A task by data type taxonomy for information visualizations
- IN IEEE SYMPOSIUM ON VISUAL LANGUAGES
, 1996
"... A useful starting point for designing advanced graphical user interjaces is the Visual lnformation-Seeking Mantra: overview first, zoom and filter, then details on demand. But this is only a starting point in trying to understand the rich and varied set of information visualizations that have been ..."
Abstract
-
Cited by 1265 (28 self)
- Add to MetaCart
(Show Context)
A useful starting point for designing advanced graphical user interjaces is the Visual lnformation-Seeking Mantra: overview first, zoom and filter, then details on demand. But this is only a starting point in trying to understand the rich and varied set of information visualizations that have been proposed in recent years. This paper offers a task by data type taxonomy with seven data types (one-, two-, three-dimensional datu, temporal and multi-dimensional data, and tree and network data) and seven tasks (overview, Zoom, filter, details-on-demand, relate, history, and extracts).
Visual Information Seeking: Tight Coupling of Dynamic Query Filters with Starfield Displays
, 1994
"... This paper offers new principles for visual information seeking (VIS). A key concept is to support browsing, which is distinguished from familiar query composition and information retrieval because of its emphasis on rapid filtering to reduce result sets, progressive refinement of search parameters, ..."
Abstract
-
Cited by 631 (51 self)
- Add to MetaCart
(Show Context)
This paper offers new principles for visual information seeking (VIS). A key concept is to support browsing, which is distinguished from familiar query composition and information retrieval because of its emphasis on rapid filtering to reduce result sets, progressive refinement of search parameters, continuous reformulation of goals, and visual scanning to identify results. VIS principles developed include: dynamic query filters (query parameters are rapidly adjusted with sliders, buttons, maps, etc.), starfield displays (two-dimensional scatterplots to structure result sets and zooming to reduce clutter), and tight coupling (interrelating query components to preserve display invariants and support progressive refinement combined with an emphasis on using search output to foster search input). A FilmFinder prototype using a movie database demonstrates these principles in a VIS environment.
Maintenance of Materialized Views: Problems, Techniques, and Applications
, 1995
"... In this paper we motivate and describe materialized views, their applications, and the problems and techniques for their maintenance. We present a taxonomy of view maintenanceproblems basedupon the class of views considered, upon the resources used to maintain the view, upon the types of modi#cati ..."
Abstract
-
Cited by 314 (9 self)
- Add to MetaCart
(Show Context)
In this paper we motivate and describe materialized views, their applications, and the problems and techniques for their maintenance. We present a taxonomy of view maintenanceproblems basedupon the class of views considered, upon the resources used to maintain the view, upon the types of modi#cations to the base data that areconsidered during maintenance, and whether the technique works for all instances of databases and modi#cations. We describe some of the view maintenancetechniques proposed in the literature in terms of our taxonomy. Finally, we consider new and promising application domains that are likely to drive work in materialized views and view maintenance. 1 Introduction What is a view? A view is a derived relation de#ned in terms of base #stored# relations. A view thus de#nes a function from a set of base tables to a derived table; this function is typically recomputed every time the view is referenced. What is a materialized view? A view can be materialized by storin...
Dynamic Queries for Visual Information Seeking
- IEEE Software
, 1994
"... Dynamic queries are a novel approach to information seeking that may enable users to cope with information overload. They allow users to see an overview of the database, rapidly (100 msec updates) explore and conveniently filter out unwanted information. Users fly through information spaces by incre ..."
Abstract
-
Cited by 298 (35 self)
- Add to MetaCart
(Show Context)
Dynamic queries are a novel approach to information seeking that may enable users to cope with information overload. They allow users to see an overview of the database, rapidly (100 msec updates) explore and conveniently filter out unwanted information. Users fly through information spaces by incrementally adjusting a query (with sliders, buttons, and other filters) while continuously viewing the changing results. Dynamic queries on the chemical table of elements, computer directories, and a real estate database were built and tested in three separate exploratory experiments. These results show statistically significant performance improvements and user enthusiasm more commonly seen with video games. Widespread application seems possible but research issues remain in database and display algorithms, and user interface design. Challenges include methods for rapidly displaying and changing many points, colors, and areas; multidimensional pointing; incorporation of sound and visual displ...
IVEE: An Information Visualization & Exploration Environment
, 1995
"... The Information Visualization and Exploration Environment (IVEE) is a system for automatic creation of dynamic queries applications. IVEE imports database relations and automatically creates environments holding visualizations and query devices. IVEE offers multiple visualizations such as maps and s ..."
Abstract
-
Cited by 139 (1 self)
- Add to MetaCart
The Information Visualization and Exploration Environment (IVEE) is a system for automatic creation of dynamic queries applications. IVEE imports database relations and automatically creates environments holding visualizations and query devices. IVEE offers multiple visualizations such as maps and starfields, and multiple query devices, such as sliders, alphasliders, and toggles. Arbitrary graphical objects can be attached to database objects in visualizations. Multiple visualizations may be active simultaneously. Users can interactively lay out and change between types of query devices. Users may retrieve details-on-demand by clicking on visualization objects. An HTML file may be provided along with the database, specifying how details-ondemand information should be presented, allowing for presentation of multimedia information in database objects. Finally, multiple IVEE clients running on separate workstations on a network can communicate by letting one users actions affect the visua...
Rolling the Dice: Multidimensional Visual Exploration using Scatterplot Matrix Navigation Visualization
- Issue 6, Nov.-Dec. 2008 Page(s):1539
"... Abstract—Scatterplots remain one of the most popular and widely-used visual representations for multidimensional data due to their simplicity, familiarity and visual clarity, even if they lack some of the flexibility and visual expressiveness of newer multidimensional visualization techniques. This ..."
Abstract
-
Cited by 115 (15 self)
- Add to MetaCart
(Show Context)
Abstract—Scatterplots remain one of the most popular and widely-used visual representations for multidimensional data due to their simplicity, familiarity and visual clarity, even if they lack some of the flexibility and visual expressiveness of newer multidimensional visualization techniques. This paper presents new interactive methods to explore multidimensional data using scatterplots. This exploration is performed using a matrix of scatterplots that gives an overview of the possible configurations, thumbnails of the scatterplots, and support for interactive navigation in the multidimensional space. Transitions between scatterplots are performed as animated rotations in 3D space, somewhat akin to rolling dice. Users can iteratively build queries using bounding volumes in the dataset, sculpting the query from different viewpoints to become more and more refined. Furthermore, the dimensions in the navigation space can be reordered, manually or automatically, to highlight salient correlations and differences among them. An example scenario presents the interaction techniques supporting smooth and effortless visual exploration of multidimensional datasets. Index Terms—Visual exploration, visual queries, visual analytics, navigation, multivariate data, interaction. 1
The Alphaslider: A Compact and Rapid Selector
, 1994
"... Research has suggested that rapid, serial, visual presentation of text (RSVP) may be an effective way to scan and search through lists of text strings in search of words, names, etc. The Alphaslider widget employs RSVP as a method for rapidly scanning and searching lists or menus in a graphical user ..."
Abstract
-
Cited by 107 (8 self)
- Add to MetaCart
(Show Context)
Research has suggested that rapid, serial, visual presentation of text (RSVP) may be an effective way to scan and search through lists of text strings in search of words, names, etc. The Alphaslider widget employs RSVP as a method for rapidly scanning and searching lists or menus in a graphical user interface environment. The Alphaslider only uses an area less than 7 cm x 2.5 cm. The tiny size of the Alphaslider allows it to be placed on a credit card, on a control panel for a VCR, or as a widget in a direct manipulation based database interface. An experiment was conducted with four Alphaslider designs which showed that novice Alphaslider users could locate one item in a list of 10,000 film titles in 24 seconds on average, an expert user in about 13 seconds. KEYWORDS: Alphaslider, widget, selection technology, menus, dynamic queries INTRODUCTION Selecting items from lists is a common task in today's society. New and exciting applications for selection technology are credit card siz...
Multimodal interfaces for dynamic interactive maps
, 1996
"... Dynamic interactive maps with transparent but power-ful human interface capabilities are beginning to emerge for a variety of geographical information systems, in-cluding ones situated on portables for travelers, stu-dents, business and service people, and others working in field settings. In the pr ..."
Abstract
-
Cited by 101 (6 self)
- Add to MetaCart
(Show Context)
Dynamic interactive maps with transparent but power-ful human interface capabilities are beginning to emerge for a variety of geographical information systems, in-cluding ones situated on portables for travelers, stu-dents, business and service people, and others working in field settings. In the present research, interfaces sup-porting spoken, pen-based, and multimodal input were analyze for their potential effectiveness in interacting with this new generation of map systems. Input modal-ity (speech, writing, multimodal) and map display for-mat (highly versus minimally structured) were varied in a within-subject factorial design as people completed re-alistic tasks with a simulated map system. The results identified a constellation of performance difficulties asso-ciated with speech-only map interactions, including ele-vated performance errors, spontaneous disfluencies, and lengthier task completion time-- problems that declined substantially when people could interact multimodally with the map. These performance advantages also mir-rored a strong user preference to interact multimodally. The error-proneness and unacceptability of speech-only input to maps was attributed in large part to people's difficulty generating spoken descriptions of spatial loca-tion. Analyses also indicated that map display format can be used to minimize performance errors and dis-fluencies, and map interfaces that guide users ' speech toward brevity can nearly eliminate disfiuencies. Impli-cations of this research are discussed for the design of high-performance multimodal interfaces for future map systems.
Information retrieval on the Web
- ACM Computing Surveys
, 2000
"... In this paper we review studies of the growth of the Internet and technologies that are useful for information search and retrieval on the Web. We present data on the Internet from several different sources, e.g., current as well as projected number of users, hosts, and Web sites. Although numerical ..."
Abstract
-
Cited by 95 (0 self)
- Add to MetaCart
In this paper we review studies of the growth of the Internet and technologies that are useful for information search and retrieval on the Web. We present data on the Internet from several different sources, e.g., current as well as projected number of users, hosts, and Web sites. Although numerical figures vary, overall trends cited
Adapting materialized views after redefinitions
- In Proceedings of ACM SIGMOD International Conference on Management of Data
, 1995
"... We consider a variant of the view maintenance problem: How does one keep a materialized view up-to-date when the view definition itself changes? Can one do better than recomputing the view from the base relations? Traditional view maintenance tries to maintain the materialized view in response to mo ..."
Abstract
-
Cited by 79 (6 self)
- Add to MetaCart
We consider a variant of the view maintenance problem: How does one keep a materialized view up-to-date when the view definition itself changes? Can one do better than recomputing the view from the base relations? Traditional view maintenance tries to maintain the materialized view in response to modifications to the base relations; we try to “adapt ” the view in response to changes in the view definition. Such techniques are needed for applications where the user can change queries dynamically and see the changes in the results fast. Data archaeology, data visualization, and dynamic queries are examples of such applications. We consider all possible redefinitions of SQL SELECT-FROM-UHERE-GROUPBY, UNION, and EXCEPT views, and show how these views can be adapted using the old materialization for the cases where it is possible to do so. We identify extra information that can be kept with a materialization to facilitate redefinition. Multiple simultaneous changes to a view can be handled without necessarily materializing intermediate results. We iden-tify guidelines for users and database administrators that can be used to facilitate efficient view adaptation. 1
