splay-tree | Fast splay-tree data structure | Dataset library

 by   w8r TypeScript Version: Current License: No License

kandi X-RAY | splay-tree Summary

kandi X-RAY | splay-tree Summary

splay-tree is a TypeScript library typically used in Artificial Intelligence, Dataset, Example Codes applications. splay-tree has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Fast splay-tree data structure
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            kandi-support Support

              splay-tree has a low active ecosystem.
              It has 98 star(s) with 14 fork(s). There are 4 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 4 open issues and 3 have been closed. On average issues are closed in 0 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of splay-tree is current.

            kandi-Quality Quality

              splay-tree has no bugs reported.

            kandi-Security Security

              splay-tree has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              splay-tree does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              splay-tree releases are not available. You will need to build from source code and install.

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            splay-tree Key Features

            No Key Features are available at this moment for splay-tree.

            splay-tree Examples and Code Snippets

            No Code Snippets are available at this moment for splay-tree.

            Community Discussions

            QUESTION

            Is there a way to select items within this custom TreeView in WPF?
            Asked 2019-Nov-05 at 16:01

            I am working from the answer of this question: Display treeviewitem as grid rows in wpf and I'm struggling to get the items in the tree to be selected. How do you do that with this type of code? Thanks

            I've tried making the TextBlocks, TextBoxes instead and had no luck.

            ...

            ANSWER

            Answered 2019-Nov-05 at 16:01

            Your elements are not selectable because they are simple TextBlocks within a DataTemplate and as such don't have any selectable behavior. For them to be selectable they would need to be of type TreeViewItem, because WPF handles selection for these.

            You should not template TreeView manually like you're doing, you should instead use HierarchicalDataTemplate to let the TreeView build its collection of TreeViewItems like this:

            Source https://stackoverflow.com/questions/58711954

            QUESTION

            Splay tree real life applications
            Asked 2017-Dec-05 at 15:11

            Where would you use splay-tree in production. I mean a REAL LIFE example.

            I was thinking about implementing autocomplete using tries and splay trees. For a large dataset it's not a good idea to traverse through trie from node x to the leaves to return results, so the idea was of having a splay tree inside a node in trie, so when user entered 'sta' it will go to s-t-a, 'a' - node and then return the top 5 elements in the splay tree (by BFS/level traversing, which doesn't necessarily mutates/modifies the tree)

            Of course after the autocomplete variant was picked, we should traverse up the trie and update all splay trees inside those nodes.

            Since splay trees are sensitive in concurrent environments I was questioning its' usage in production

            Your ideas?

            ...

            ANSWER

            Answered 2017-Dec-05 at 15:11

            Splay trees are not a good match for data which rarely or never changes, particularly in a threaded environment. The extra mutations during read operations defeat memory caches and can create unnecessary lock contention. In any case, for read-only data structures, you can do a one-time computation of an optimal tree. Even if that computation is slow, it will have no impact on the long-term execution time.

            I'm not entirely persuaded by the claim that large tries are slow, and certainly not in the case of autocompleters. On even not-so-modern hardware, the cost of a trie traversal is trivial compared to the time it takes for the user to type a character, or even the time it takes for the underlying keyboard driver and input processor to deliver the keypress to your application.

            If you really need to optimise a trie, there is good reason to believe that a hybrid data structure with a trie at the root combined with a linear (or binary) search once the alternatives can fit in a cache line. This maximizes the benefit of the trie's large fan-out while avoiding the poor caching behaviour and excessive storage overhead at the end of the lines.

            Splay trees are most useful (if they are useful at all) on data structures which are modified frequently. The ckassic example is a "rope" data structure (a tree of string segments), which is one way to attempt to optimise a text editor by avoiding large string copies. Compared with a deterministic tree-balancing algorithm such as RB-trees, the splay tree algorithm has the benefit of simplicity, as well as only touching nodes which form part of the tree traversal.

            However, the ready availability of self-balancing tree libraries (part of the standard libraries of many modern programming languages) combined with often-disappointing empirical results make the splay algorithm a niche product at best, although it is certainly a fascinating idea.

            Source https://stackoverflow.com/questions/47654564

            QUESTION

            Splay Tree Worst Case Search Time
            Asked 2017-Oct-10 at 05:00

            Since splay tree is a type of unbalanced binary search tree (brilliant.org/wiki/splay-tree), it cannot guarantee a height of at most O(log(n)). Thus, I would think it cannot guarantee a worst case search time of O(log(n)).

            But according to bigocheatsheet.com:

            Splay Tree has worst case search time of O(log(n))???

            ...

            ANSWER

            Answered 2017-Oct-10 at 05:00

            You’re correct; the cost of a lookup in a splay tree can reach Θ(n) for an imbalanced tree.

            Many resources like the big-O cheat sheet either make simplifying assumptions or just have factually incorrect data in them. It’s unclear whether they were just wrong here, or whether they were talking amortized worst case, etc.

            It’s always best to know the internals of the data structures you’re working with so that you can understand where the runtimes come from.

            Source https://stackoverflow.com/questions/46658483

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install splay-tree

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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          • HTTPS

            https://github.com/w8r/splay-tree.git

          • CLI

            gh repo clone w8r/splay-tree

          • sshUrl

            git@github.com:w8r/splay-tree.git

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