the management of agricultural education faces on-going challenges to deliver current and effective materials in an approach that takes advantage of developments in education technology. in this article the use of blended learning was compared with the traditional approach for the instruction of theoretical materials in agricultural education. this study used a pre-test, post-test experimental ...

This paper starts from the ISO distinction of three types of evaluation procedures – internal, external and in use – and proposes to match these types to the three types of human language technology (HLT) systems: analysis, generation, and interactive. The paper explains why internal evaluation is not suitable to measure the qualities of HLT systems, and shows that reference-based external eval...

The factors governing the extraction of useful information from polarimetric images depend upon the image acquisition and analytical methodologies being used, and upon systematic and environmental variations present during the acquisition process. The acquisition process generally occurs with foreknowledge of the analysis to be used. Broadly, interactive image analysis and automated image analy...

Programming by Human Demonstration is an intuitive method to program a robot. The user, acting as the teacher or programmer, shows how a particular task is performed, using an interface device that allows the measurement and recording of applied commands and the data simultaneously perceived by the robot's sensors. This paper presents an extension of this method to the interactive acquisition o...

There is a wealth of user-centred evaluation methods (UEMs) to support the analyst in assessing interactive systems. Many of these support detailed aspects of use – for example: Is the feedback helpful? Are labels appropriate? Is the task structure optimal? Few UEMs encourage the analyst to step back and consider how well a system supports users’ conceptual understandings and system utility. In...

Interactive Theorem Provers (ITPs) are tools meant to assist the user during the formal development of mathematics. Automatic proof searching procedures are a desirable aid, and most ITPs supply the user with an extensive set of facilities to improve automation. However, the black-box nature of most automatic procedure conflicts with the interactive nature of these tools: a newcomer running an ...

In composer Tod Machover’s new opera Death and the Powers, the main character uploads his consciousness into an elaborate computer system to preserve his essence and agency after his corporeal death. Consequently, for much of the opera, the stage and the environment itself come alive as the main character. This creative need brings with it a host of technical challenges and opportunities. In or...

Because there is no commonly accepted view of what makes for good writing, automated essay scoring (AES) ideally should be able to accommodate different theoretical positions, certainly at the level of state standards but also perhaps among teachers at the classroom level. This paper presents a practical approach and an interactive computer program for judgment-based customization. This approac...

Color separation is an image processing technique that has often been used in forensic applications to differentiate among variant colors and to remove unwanted image interference. This process can reveal important information such as covered text or fingerprints in forensic investigation procedures. However, several limitations prevent users from selecting the appropriate parameters pertaining...

On-demand video servers based on hierarchical storage systems are able to o er highcapacity and low-cost video storage. In such a system, video les are stored in the tertiary level and transferred to the secondary level to be displayed. The design of video servers allowing user interaction with the playbacked video is of great interest. We have conducted a comprehensive study on the architectur...