The Lempel-Ziv family of algorithms were introduced by Abraham Lempel and Jacob Ziv in two papers over the course of 1977 & 1978. The algorithms detailed in those papers have come to be known as lz77 (lz1) and lz78(lz2), respectively. Since being i
In the early days of computing storage space was at a premium. It might hard to reconcile with now that having terrabytes of diskspace and gigabytes of ram in the average laptop that for a computer to have megabytes of storage available wouldn
Since their inception, Binary Search Tree's have come to be one of the most fundamental data structures in programming. Shortly after their initial development it was realized that with a bit more work we could gurantee a worst case performance of loga
Sometimes when perusing the literature you come across an interesting algorithm, that while of dubious practical applicability, is none the less of novel interest. This post is about just such an algorithm. I can't be certain, but if i were to hazard a
It's no secret that when it comes to search structures, hash tables are fast. Performance wise, a hashtable can be much faster than any of the ordered search tree's frequently discussed in my posts. If your data doesn't require a
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Parsing Lisp: From Data To Code
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Swiz Heaps: A deterministic modification of Randomized Meldable Heaps
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Let's talk Eval/Apply
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BST Deletion: Removal By Merge
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Dictionary Based Compression: The LZW Algorithm
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Taking Action: Compiling Procedures to P-Code
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Making Decisions: Compiling If Statements to P-Code
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Repeating yourself: Compiling While Loops to P-Code
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Removing an entry from a B+ Tree without Rebalancing: A viable approach?
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Implementing An Iterator for In-Memory B-Trees