fibonacci-heap | 易学教程

Is there a standard Java implementation of a Fibonacci heap?

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问题 I was looking at the different kind of heap data structures. The Fibonacci heap seems to have the better worst case complexity for (1) insertion, (2) deletion and (2) finding the minimum element. I have found that in Java there is a class PriorityQueue that is a balanced binary heap. But why they did not use a Fibonacci heap? Also, is there an implementation of a Fibonacci heap in java.util ? Thanks! 回答1: No, the standard Java collections API does not contain an implementation of a Fibonacci

Has anyone actually implemented a Fibonacci-Heap efficiently?

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Has anyone of you ever implemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps. Back then, I thought of it as a valuable lesson in how research is not always as good as it claims to be. However, a lot of research papers claim the running times of their algorithms based on using a Fibonacci-Heap. Did you ever manage to produce an efficient implementation? Or did you work with data-sets so large that the Fibonacci-Heap was more efficient? If so, some details would be appreciated. A. Rex The Boost C++ libraries

Has anyone actually implemented a Fibonacci-Heap efficiently?

阅读更多关于 Has anyone actually implemented a Fibonacci-Heap efficiently?

问题 Has anyone of you ever implemented a Fibonacci-Heap? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps. Back then, I thought of it as a valuable lesson in how research is not always as good as it claims to be. However, a lot of research papers claim the running times of their algorithms based on using a Fibonacci-Heap. Did you ever manage to produce an efficient implementation? Or did you work with data-sets so large that the Fibonacci