Oracle Interview Question for Software Engineer / Developers


Country: United States
Interview Type: In-Person




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2
of 2 vote

We need k-nearest neighbor search methods. If it's always 10 may be we can use some fancy algorithms, but in general kd-tree or locality sensitive hashing (LSH) would be a good option, specially with the assumption that the world is a 2-dimensional flat surface. Don't know about the complexity of LSH, but kd-tree can be used to find "the" nearest neighbor in O( log N ) time. For the remaining (k-1), I guess in total O( k log N) will do (not 100% sure).

- lasthope November 19, 2013 | Flag Reply
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1
of 1 vote

Use R-Trees

- fReaK November 18, 2013 | Flag Reply
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0
of 0 vote

Graph.
Single source shortest distance problem.

- Anonymous November 18, 2013 | Flag Reply
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0
of 0 vote

Can be stored using Continent -> Country->State->District->Region

- Anupam November 18, 2013 | Flag Reply


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