[PDF] Top 20 Tree Kernel Based Relation Extraction with Context Sensitive Structured Parse Tree Information

... a kernel between two parse trees, which recursively matches nodes from roots to leaves in a top-down ...subsequence kernel on their child nodes is ...simple relation extraction ...5 ... See full document

... semantic relation ex- traction. Featured-based methods achieve prom- ising performance and competitive efficiency by transforming a relation example into a set of syn- tactic and semantic features, ... See full document

... lution tree kernel (CTK) on the state-of-the-art context sensitive shortest path-enclosed tree rep- resentation (CSPT, Zhou et ...only context information features – ... See full document

... our tree kernel achieves best performance with m = 3 on the test data, which outperforms the one with m = 1 by ...much information for pronoun resolution while considering more ancestral nodes ... See full document

... traditional relation ex- traction, which only considers a fixed set of relations, Open Information Extraction (Open IE) aims at extracting all types of relations from ...lexical information, ... See full document

... Prior kernel-based methods for this task focus on using individual tree kernels to exploit tree structure-related ...a kernel over parse trees for relation ...The ... See full document

... linguistic information of the neighbor locating around the candidate tokens as the coherent features (CS1~CS6 in Table ...syntactic tree as the inherent features (CS7~CS10 in Table ... See full document

... method based on the proposed database ...probabilistic context free grammar, the inside and outside probabilities which can be used to construct the parse tree, an algorithm to calculate the ... See full document

... a parse tree should contrib- ute much more to performance improvement for relation ...structure information in a parse tree is hard to explicitly describe by a vector of linear ... See full document

... convolution parse tree kernel expanded with entity features for relation extraction using Support Vector ...convolution parse tree kernel achieves better ... See full document

... SVM tree kernels ap- plied to dependency parses for both ...is based on heuristic rules from dependency parse links, and compared that with our SVM tree kernel ... See full document

... The kernel is generalized by assigning weights to the ...the tree nodes on the kernel value can be discriminated purposely based on the ...application. Context information can ... See full document

... convolution kernel to mine structured features directly from packed ...n-best parse trees, and thus containing much more rich structured features than a single parse ...traditional ... See full document

... the tree where “he” is marked when the predicate is “say”, and a -1 when the pred- icate is ...MOLT kernel, they are given relatively small weights by ... See full document

... distance- based distortion model (Koehn et ...the structured syntactic knowledge, which is important to glob- al reordering (Li et ...phrase- based method particularly weak in handling global phrase ... See full document

... a relation extraction technique based on kernel ...methods. Kernel methods are non- parametric density estimation techniques that com- pute a kernel function between data ... See full document

... propagate information from the head to the ...the information of all tokens to all other tokens in the tree, since each token only gets information from its ances- tors and descendants, it is ... See full document

... in where user-defined tags cause semantic ambiguity, different tag names may have same meanings on semantics, or same tag names may have different meanings in different structures. Some of these ambiguity problems in ... See full document

... the Tree-kernel based Method We focus on the comparison of the best model in Plank and Moschitti (2013) (row 11 in Table 2) (called P) with the same model but augmented with the embedding WED (row 12 ... See full document

... Abstract. Relation extraction is to identify the relations between pairs of named ...of relation extraction by discovering dependency tree patterns (a pattern is an embedded sub ... See full document