Preprocessing time - PowerPoint PPT Presentation

Lecture outline

Lecture outline. Nearest-neighbor search in low dimensions kd-trees Nearest-neighbor search in high dimensions LSH Applications to data mining. Definition. Given: a set X of n points in R d Nearest neighbor: for any query point q є R d return the point x є X minimizing D(x,q)

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Dictionary Matching with One Gap

Dictionary Matching with One Gap. Amihood Amir, Avivit Levy, Ely Porat and B. Riva Shalom. CPM 2014 - Moscow. ! MIND THE GAP . Outline. The DMG( Dictionary Matching with one Gap ) Problem Motivation Previous Work Bidirectional Suffix Trees Solution Lookup Table addition

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Lowest common ancestors

Lowest common ancestors. 0. Shallowest node. 12. 8. 3. 9. 1. 2. 11. 4. 7. 10. 5. 6. Write an Euler tour of the tree. 3. 3. 2. 3. 1. 4. 1. 7. 1. 3. 5. 6. 5. 3. 5. 1. 2. 4. 6. 7. LCA(1,5) = 3. 0. minimum. 12. 8. 3. 9. 1. 2. 11. 4. 7. 10. 5. 6. 3. 5.

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