The effect of extrinsic motivation on user behavior in a collaborative information finding system
In collaborative information finding systems, evaluations provided by users assist other users with similar needs. This article examines the problem of getting users to provide evaluations, thus overcoming the so-called free-riding behavior of users. ...
Using clustering techniques to detect usage patterns in a Web-based information system
Different users of a Web-based information system will have different goals and different ways of performing their work. This article explores the possibility that we can automatically detect usage patterns without demographic information about the ...
A picture is worth a thousand words: art indexing in electronic databases
The enormous number of images of works of art available on the Internet promises great potential for research in art history and related image-using disciplines. Yet without adequate indexing, this resource is very difficult to explore. It is certainly ...
A quantitative categorical analysis of metadata elements in image-applicable metadata schemas
This article reports on a quantitative categorical analysis of metadata elements in the Dublin Core, VRA Core, REACH, and EAD metadata schemas, all of which can be used for organizing and describing images. The study found that each of the examined ...
Browsing image collections with representations of common-sense activities
To support browsing-based subject access to image collections, it is necessary to provide users with networks of subject terms that are organized in an intuitive, richly interconnected manner. A principled approach to this task is to organize the ...
Structured natural-language descriptions for semantic content retrieval of visual materials
Keyword search of multimedia collections lacks precision and automatic parsing of unrestricted natural language annotations lacks accuracy. We propose a structure for natural language descriptions of the semantic content of visual materials that ...
A conceptual framework and empirical research for classifying visual descriptors
This article presents exploratory research evaluating a conceptual structure for the description of visual content of images. The structure, which was developed from empirical research in several fields (e.g., Computer Science, Psychology, Information ...
An open source agenda for research linking text and image content features
The use of primitive content features of images for classification and retrieval has matured over the past decade. However, human beings often prefer to locate images using words. This article proposes a number of methods to utilize image primitives to ...
Content independence in multimedia databases
A database management system is a general-purpose software system that facilitates the processes of defining, constructing, and manipulating databases for various applications. This article investigates the role of data management in multimedia digital ...
Evaluating image browsers using structured annotation
In this article we address the problem of benchmarking image browsers. Image browsers are systems that help the user in finding an image from scratch, as opposed to query by example (QBE), where an example image is needed. The existence of different ...
Quantitative assessment of image retrieval effectiveness
Content-based retrieval (CBR) promises to greatly improve capabilities for searching for images based on semantic features and visual appearance. However, developing a framework for evaluating image retrieval effectiveness remains a significant ...
