Trees (data structures) | Geometric data structures
In computer science, a range tree is an ordered tree data structure to hold a list of points. It allows all points within a given range to be reported efficiently, and is typically used in two or higher dimensions. Range trees were introduced by Jon Louis Bentley in 1979. Similar data structures were discovered independently by Lueker, Lee and Wong, and Willard.The range tree is an alternative to the k-d tree. Compared to k-d trees, range trees offer faster query times of (in Big O notation) but worse storage of , where n is the number of points stored in the tree, d is the dimension of each point and k is the number of points reported by a given query. Bernard Chazelle improved this to query time and space complexity . (Wikipedia).
Related Videos: Fenwick tree range queries: https://www.youtube.com/watch?v=RgITNht_f4Q Fenwick tree point updates: https://www.youtube.com/watch?v=B-BkW9ZpKKM Fenwick tree construction: https://www.youtube.com/watch?v=BHPez138yX8 Fenwick tree source code: https://www.youtube.com/watch?v=e
From playlist Data structures playlist
We look at the oak tree, and why our ecologist says it should lead to a new national holiday in the England. More at http://www.test-tube.org.uk/trees/
From playlist Guide to Trees & Plants
Introduction to Spanning Trees
This video introduces spanning trees. mathispower4u.com
From playlist Graph Theory (Discrete Math)
We don't know what a tree is (and this video won't tell you)
Offset your carbon footprint with Wren! They'll protect 5 extra acres of rainforest for each of the first 100 people who sign up at https://www.wren.co/join/minuteearth. It turns out that defining what is and isn't a “tree” is way harder than it seems. LEARN MORE ************** To learn m
From playlist This Is Not A Playlist
Pythagorean Theorem and Tree Height
Using the pythagorean theorem to find the height of a tree in a badly worded problem
From playlist Middle School - Worked Examples
This Tree Is Large Enough to Span 80 Football Fields | National Geographic
The heaviest living organism weighs more than 13 million pounds—and is just one tree. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists,
From playlist News | National Geographic
Find out why yew trees are often found in church yards. More tree stories at http://www.test-tube.org.uk/trees/index.htm
From playlist Guide to Trees & Plants
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A tree expert talks a little about Christmas trees for sale at his corner shop. More science at http://www.test-tube.org.uk/ This has been entered for consideration in the contest at www.chlorofilms.org
From playlist Christmas Selection - Sixty Symbols
The Beech is the latest addition to our collection of videos about trees, presented by ecologist Dr Markus Eichhorn. See them all at http://www.test-tube.org.uk/trees/
From playlist Guide to Trees & Plants
Research Working Session: Tuesday, September 13, 2022 [Multicomputation]
This a research session on Multicomputation. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wolfram here: https://www.twitch.tv/stephen_wolfram/ Follow us on our officia
From playlist Science and Research Livestreams
Lowest Common Ancestor (LCA) Problem | Eulerian path method
Lowest Common Ancestor problem Lowest Common Ancestor source code video: https://www.youtube.com/watch?v=rA7JJG7x9vs Sparse Table Video: https://www.youtube.com/watch?v=uUatD9AudXo Source code repository: https://github.com/williamfiset/algorithms#tree-algorithms Video slides: https://
From playlist Tree Algorithms
Research Working Session: Tuesday, August 23, 2022 [Multicomputation]
This a research session on Multicomputation. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wolfram here: https://www.twitch.tv/stephen_wolfram/ Follow us on our officia
From playlist Science and Research Livestreams
Against my better judgement I attempt to implement a QuadTree algorithm in a highly jet-lagged state. 20:42 - Coding Challenge: Quadtree - Part 1 1:33:35 - Coding Challenge: Quadtree - Part 2 🔗 Quadtree on Wikipedia: https://en.wikipedia.org/wiki/Quadtree 🔗 Bin Lattice Spatial Subdivisio
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Boehning-Gaese: Biodiversity and Global Change
Katrin Boehning-Gaese discusses models and methods used to predict the impact of climate change on species distributions.
From playlist Spatial Biodiversity Science and Conservation
Check if a binary tree is binary search tree or not
See complete series on data structures here: http://www.youtube.com/playlist?list=PL2_aWCzGMAwI3W_JlcBbtYTwiQSsOTa6P In this lesson, we have written a program in C/C++ to verify whether a given binary tree is binary search tree or not. For practice problems and more, visit: http://www.m
From playlist Data structures
Yuval Peres: Self-interacting walks and uniform spanning forests
Abstract: In the first half of the talk, I will survey results and open problems on transience of self-interacting martingales. In particular, I will describe joint works with S. Popov, P. Sousi, R. Eldan and F. Nazarov on the tradeoff between the ambient dimension and the number of differ
From playlist Probability and Statistics
PGConf NYC 2021 - Flexible Indexing with Postgres by Bruce Momjian
Flexible Indexing with Postgres by Bruce Momjian When considering database indexing, many people are confused by the many Postgres indexing structures available, and the many data-type-specific index lookup methods. For example, brin allows for efficient indexing of many columns. gin inde
From playlist PGConf NYC 2021
Related Videos: Fenwick tree range queries: https://www.youtube.com/watch?v=RgITNht_f4Q Fenwick tree point updates: https://www.youtube.com/watch?v=B-BkW9ZpKKM Fenwick tree construction: https://www.youtube.com/watch?v=BHPez138yX8 Fenwick tree source code: https://www.youtube.com/watch?v=e
From playlist Data structures playlist