Introduction to probability and statistics (7th ed.)
Introduction to probability and statistics (7th ed.)
Designing the user interface (2nd ed.): strategies for effective human-computer interaction
Designing the user interface (2nd ed.): strategies for effective human-computer interaction
A visual tool for querying geographic databases
AVI '00 Proceedings of the working conference on Advanced visual interfaces
What happened when database researchers met usability
Information Systems
Maintaining knowledge about temporal intervals
Communications of the ACM
Proceedings of the 2002 ACM symposium on Applied computing
Interoperating Geographic Information Systems
Interoperating Geographic Information Systems
Spatial SQL: A Query and Presentation Language
IEEE Transactions on Knowledge and Data Engineering
SEE: A Spatial Exploration Environment Based on a Direct-Manipulation Paradigm
IEEE Transactions on Knowledge and Data Engineering
SQL/SDA: A Query Language for Supporting Spatial Data Analysis and Its Web-Based Implementation
IEEE Transactions on Knowledge and Data Engineering
A Human Factors Experimental Comparison of SQL and QBE
IEEE Transactions on Software Engineering
Querying GIS with Animated Spatial Sketches
VL '97 Proceedings of the 1997 IEEE Symposium on Visual Languages (VL '97)
VISCO: Bringing Visual Spatial Querying to Reality
VL '98 Proceedings of the IEEE Symposium on Visual Languages
Concepts and Techniques of Geographic Information Systems (2nd Edition) (Ph Series in Geographic Information Science)
A usability-driven approach to the development of a 3D web-GIS environment
Journal of Visual Languages and Computing
Visual Languages for Interactive Computing: Definitions and Formalizations
Visual Languages for Interactive Computing: Definitions and Formalizations
A visual query language for uncertain spatial and temporal data
VISUAL'05 Proceedings of the 8th international conference on Visual Information and Information Systems
An evaluation of a rule-based language for classification queries
INAP'04/WLP'04 Proceedings of the 15th international conference on Applications of Declarative Programming and Knowledge Management, and 18th international conference on Workshop on Logic Programming
Visual programming language in geographic information systems
AICT'11 Proceedings of the 2nd international conference on Applied informatics and computing theory
Querying spatial and temporal data by condition tree: two examples based on environmental issues
ICCSA'13 Proceedings of the 13th international conference on Computational Science and Its Applications - Volume 1
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The need to perform complex analysis and decision making tasks has motivated growing interest in Geographic Information Systems (GIS) as a means to compare different scenarios and simulate the evolution of a phenomenon. However, data and function complexity may critically affect human interaction and system performances during planning and prevention activities. This is especially true when the scenarios of interest involve continuous fields, besides discrete objects. In the present paper we describe the visual environment Phenomena, where continuous and discrete data may be handled through a uniform approach. We illustrate how users' activity is supported by a visual framework where they can interact with, manipulate and query heterogeneous data, with a very small training effort. A preliminary experimental study suggests that when users perform complex tasks, a higher usability degree may be achieved compared to the adoption of a textual spatial SQL.