Exploring the Web with Reconnaissance Agents
Why surf alone? New agent technology can scout out the online terrain and recommend the best paths for you to follow.
Henry Lieberman
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Not if it’s business as usual in the software industry. But we could make it work. Throughout this issue, you’ll hear some amazing predictions about the future—instant universal communication, pervasive computing, new medical applications, and lots more. There’s only one problem. The software for all these things might not work. If today’s software is any […]
Programming By Example: Visual Generalization in Programming By Example
Let PBE systems use the visual properties of on-screen interactive elements to bridge the user's view of an application and its underlying programmable functionality.
Programming By Example (Introduction)
Avoiding the voodoo of conventional programming, users get personalized solutions to one-of-a-kind application problems that can be used over and over again.
A real-time garbage collector based on the lifetimes of objects
In previous heap storage systems, the cost of creating objects and garbage collection is independent of the lifetime of the object. Since objects with short lifetimes account for a large portion of storage use, it is worth optimizing a garbage collector to reclaim storage for these objects more quickly. The garbage collector should spend proportionately less effort reclaiming objects with longer lifetimes. We present a garbage collection algorithm that (1) makes storage for short-lived objects cheaper than storage for long-lived objects, (2) that operates in real time—object creation and access times are bounded, (3) increases locality of reference, for better virtual memory performance, (4) works well with multiple processors and a large address space.
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