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courses:rg:2013:dep-tree-kernels [2013/03/12 00:09] kosao7am answers |
courses:rg:2013:dep-tree-kernels [2013/03/12 00:14] kosao7am |
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You want to check the relation between entities " | You want to check the relation between entities " | ||
- | ====== Answers ====== | + | ====== Answers ====== |
- | | + | |
- Depends on the exact definition of smallest common subtree, but keep in mind you need at least some non-trivial " | - Depends on the exact definition of smallest common subtree, but keep in mind you need at least some non-trivial " | ||
- d(a) is defined as the last member of the sequence - the first member + 1. If the sequence is contignous (no missing indices) it can be shown (eg. by induction) that the equation holds, unless some of the indices is repeated. Strictly speaking (1,1,1) is a valid sequence. | - d(a) is defined as the last member of the sequence - the first member + 1. If the sequence is contignous (no missing indices) it can be shown (eg. by induction) that the equation holds, unless some of the indices is repeated. Strictly speaking (1,1,1) is a valid sequence. | ||
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* '' | * '' | ||
- First this depends on the previous one (the " | - First this depends on the previous one (the " | ||
- | * < | + | * < |
- | * When counting K_1 you leave out the < | + | * When counting K_1 you leave out the < |
- When you regard bag-of-words kernel as number of matching forms then K_2 is zero whereas K_1 is (very likely) positive | - When you regard bag-of-words kernel as number of matching forms then K_2 is zero whereas K_1 is (very likely) positive | ||
- It was argued that we'll probably end up with different relation-args, | - It was argued that we'll probably end up with different relation-args, | ||
| | ||
- | ====== Misc ====== | + | |
- | | + | ====== Misc ====== |
- There was some discussion what are the features for bag-of-words kernel (just presence of a word in sentence?) | - There was some discussion what are the features for bag-of-words kernel (just presence of a word in sentence?) | ||
- Feature selection, mainly the relation-args feature | - Feature selection, mainly the relation-args feature | ||
- "Two level" classification, | - "Two level" classification, |