kbest spanning tree parsing

... Maximum Spanning Tree algorithm 1 was re- cently introduced as a viable solution for non- projective dependency parsing (McDonald et al., 2005b). The dependency parsing problem is nat- urally a spanning ... nat- urally a spanning tree problem; however, effi- cient spanning- tree optimization algorithms assume a cost function which assigns scores independently to edges of the graph. In dependency parsing, this effectively ... MST Model One way in which dependency parsing differs from constituency parsing is that there is a fixed amount of structure in every tree. A dependency tree for a sen- tence of n words has exactly...

Ngày tải lên: 20/02/2014, 12:20

... the Spanning- Tree Protocol, which disrupts user traffic. © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-7 • Spanning- tree transits each port through several different states: Spanning- Tree ... recalculation of the spanning tree when the network topology changes. © 2002, Cisco Systems, Inc. All rights reserved. © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-9 Spanning- Tree Path ... Inc. All rights reserved. ICND v2.0—3-8 Spanning- Tree Port States (Cont.) © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-13 Rapid Spanning- Tree Protocol © 2002, Cisco Systems, Inc....

Ngày tải lên: 08/07/2013, 01:27

... command. Switch_A#show spanning- tree brief b. On Switch_B type show spanning- tree brief at the privileged EXEC mode prompt as follows: Switch_B#show spanning- tree brief Examine the ... _________________________________________ d. Which switch should be the root of the spanning tree for VLAN 1? ______________________ Step 5 Look at the spanning tree table on each switch a. At the privileged EXEC mode ... following on Switch_A: Note: Type show spanning- tree brief if running version 12.0 of the IOS. If running version 12.1 of the IOS, type just show spanning- tree. Different versions of IOS have...

Ngày tải lên: 11/12/2013, 14:15

... IOS, type just show spanning- tree. Different versions of IOS have different options for this command. Switch_A#show spanning- tree brief b. On Switch_B type show spanning- tree brief at the privileged ... IOS, type just show spanning- tree. Different versions of IOS have different options for this command. Switch_A#show spanning- tree brief b. On Switch_B type show spanning- tree brief at the privileged ... Cisco Systems, Inc. Lab 7.2.6 Spanning Tree Recalculation Objective • Create a basic switch configuration and verify it. • Observe the behavior of spanning tree algorithm in presence of switched...

Ngày tải lên: 11/12/2013, 14:15

... ALSwitch(config) #spanning- tree priority 100 Check again with the show spanning- tree command to make sure the priority has changed: ALSwitch#sh spanning- tree Spanning tree 1 is executing ... shown in the graphic above. 2. Look at the spanning- tree output: DLSwitch1> (enable) sh spantree VLAN 1 Spanning tree enabled Spanning tree type ieee Designated Root 00-02-4b-21-36-c0 ... of spanning- tree by using root bridge and port priorities. Scenario: You are not happy with the way spanning- tree is working. Your access layer switch has become your root spanning- tree...

Ngày tải lên: 24/01/2014, 19:20

... unused Spanning- Tree Operation © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-13 Rapid Spanning- Tree Protocol © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-10 Spanning- Tree ... Systems, Inc. All rights reserved. ICND v2.0—3-8 Spanning- Tree Port States (Cont.) © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-12 Spanning- Tree Convergence • Convergence occurs when ... recompute the Spanning- Tree Protocol, which disrupts user traffic. © 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-2© 2002, Cisco Systems, Inc. All rights reserved. 2 Spanning- Tree Protocol...

Ngày tải lên: 17/02/2014, 08:20

Ngày tải lên: 24/03/2014, 03:20

Ngày tải lên: 04/04/2014, 00:01

Ngày tải lên: 08/05/2014, 13:41

Ngày tải lên: 05/07/2014, 03:20

Ngày tải lên: 05/07/2014, 04:20

... without heuristics. 3 Symbol-Refined Tree Substitution Grammars In this section, we propose Symbol-Refined Tree Substitution Grammars (SR-TSGs) for syntactic parsing. Our SR-TSG model is an extension ... Accurate Parsing with an All-Fragments Grammar. In In Proc. of ACL, pages 1098–1107. Phil Blunsom and Trevor Cohn. 2010. Unsupervised Induction of Tree Substitution Grammars for Depen- dency Parsing. ... 2007. Parsimonious Data-Oriented Parsing. In Proc. of EMNLP-CoNLL, pages 551–560. 448 tree fragments and symbol refinement work comple- mentarily for syntactic parsing. For example, Bansal and...

Ngày tải lên: 19/02/2014, 19:20

... pair, (b) a tree transformation based mapping, and (c) a tree trans- ducer that performs the mapping. volve tree transformations either between two trees or a tree and a string. The tree transducer, ... class of tree transducers, producing state-of-the-art semantic parsing re- sults while remaining applicable to any do- main employing probabilistic tree transducers. 1 Introduction Semantic parsing ... theory of tree transformation based seman- tic parsing by presenting a tree transducer model and drawing connections to other similar systems. We make a further contribution by bringing to tree transducers...

Ngày tải lên: 19/02/2014, 19:20

Ngày tải lên: 20/02/2014, 18:20

... (l~niladdp~Ja] (2.2) ~ Pbl~ael: (b) (c) Figure 2: (as and/~s) Elementary trees, (a) Derived Tree, (b) Derivation Tree, and (c) Dependency tree for the sentence: show me the flights from Boston to Philadelphia. ... training corpus. Auxiliary trees in LTAG represent recursive struc- tures. So if there is an auxiliary tree that is used in an LTAG parse, then that tree with the trees for its arguments can ... Lexicalized Tree- Adjoining Grammar Lexicalized Tree- Adjoining Grammar (LTAG) (Sch- abes et al., 1988; Schabes, 1990) consists of ELE- MENTARY TREES, with each elementary tree hav- ing...

Ngày tải lên: 20/02/2014, 22:20

... decision -tree questions, see (Magerman, 1994). 3 SPATTER Parsing The SPATTER parsing algorithm is based on inter- preting parsing as a statistical pattern recognition process. A parse tree for ... for the decision- tree growing process for the appropriate feature's tree (e.g. each tagging event is used for growing the tagging tree, etc.). After the decision trees are grown, they ... the label in the tree- bank. Table 1 shows the results of SPATTER evaluated against the Penn Treebank on the Wall Street Jour- nal section 00. Comparisons Avg. Sent. Length Treebank Constituents...

Ngày tải lên: 20/02/2014, 22:20

... symbol, 1 and A are two finite sets of trees, called initial trees and auxiliary trees respectively. The trees in the set IuA are called elementary trees. We assume that the reader is familiar ... Lexicalization to Parsing. In Proceedings of the 1st International Workshop on Parsing Technologies. Pittsburgh, PA. To also appear under the title: Parsing with Lexicalized Tree Adjoining ... Lexicalized Tree Adjoining Grammars (Schabes et al., 1988) are a refinement of TAGs such that each elementary tree is associated with a lexieal item, called the anchor of the tree. Therefore,...

Ngày tải lên: 22/02/2014, 10:20

... auxiliary tree is called the spine of the auxiliary tree. An elementary tree is either an initial tree or an auxiliary tree. We use a to refer to initial trees and/3 for auxiliary trees. A ... symbols, S E V/v is the start symbol, I is a finite set of initial trees, A is a finite set of auxiliary trees. An initial tree is a tree with root labeled by S and internal nodes and leaf nodes ... label and constraints. The tree language, T(G), generated by a TAG, G, is the set of trees derived starting from an initial tree such that no node in the resulting tree has an OA constraint....

Ngày tải lên: 22/02/2014, 10:20

... that considers more global dependency relations. 3 Tree- Based Parsing Applied to Nivre’s Method 3.1 Overall Procedure Tree- based parsing uses trees as the procedural el- ements instead of words. ... selecting a parsing action for two words, as in Nivre’s model, our tree- based model first chooses the most probable head can- didate from among the trees through a tournament and then decides the parsing ... sentence parsing time [sec] 10 20 30 40 50 0 10 20 30 40 50 60 Proposed Method length of input sentence parsing time [sec] Figure 3: Parsing time for sentences. method. Figure 3 shows plots of the parsing...

Ngày tải lên: 07/03/2014, 22:20

Ngày tải lên: 17/03/2014, 04:20