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external:tectomt:tutorial [2009/01/21 15:25]
popel 		external:tectomt:tutorial [2009/01/22 10:35]
kravalova
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   * Each bundle contains tree shaped sentence representations on various linguistic layers. In our example ''sample.tmt'' we have morphological tree (''SEnglishM'') in each bundle. Later on, also an analytical layer (''SEnglishA'') will appear in each bundle as we proceed with our analysis.    * Each bundle contains tree shaped sentence representations on various linguistic layers. In our example ''sample.tmt'' we have morphological tree (''SEnglishM'') in each bundle. Later on, also an analytical layer (''SEnglishA'') will appear in each bundle as we proceed with our analysis. 
   * Trees are formed by nodes and edges. Attributes can be attached only to nodes. Edge's attributes must be equivalently stored as the lower node's attributes. Tree's attributes must be stored as attributes of the root node.   * Trees are formed by nodes and edges. Attributes can be attached only to nodes. Edge's attributes must be equivalently stored as the lower node's attributes. Tree's attributes must be stored as attributes of the root node.
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                 SEnglishW_to_SEnglishM::Sentence_segmentation_simple \                 SEnglishW_to_SEnglishM::Sentence_segmentation_simple \
                 SEnglishW_to_SEnglishM::Penn_style_tokenization \                 SEnglishW_to_SEnglishM::Penn_style_tokenization \
-                SEnglishW_to_SEnglishM::TagTnT \+                SEnglishW_to_SEnglishM::TagMxPost \
                 SEnglishW_to_SEnglishM::Lemmatize_mtree \                 SEnglishW_to_SEnglishM::Lemmatize_mtree \
         -- sample.tmt         -- sample.tmt
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                 SEnglishW_to_SEnglishM::Sentence_segmentation_simple \                 SEnglishW_to_SEnglishM::Sentence_segmentation_simple \
                 SEnglishW_to_SEnglishM::Penn_style_tokenization \                 SEnglishW_to_SEnglishM::Penn_style_tokenization \
-                SEnglishW_to_SEnglishM::TagTnT \+                SEnglishW_to_SEnglishM::TagMxPost \
                 SEnglishW_to_SEnglishM::Lemmatize_mtree \                 SEnglishW_to_SEnglishM::Lemmatize_mtree \
                 SEnglishM_to_SEnglishA::McD_parser_local \                 SEnglishM_to_SEnglishA::McD_parser_local \
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 ==== Task ==== ==== Task ====
 A block which, given an analytical tree (''SEnglishA''), fills each ''a-node'' with boolean attribute ''is_clause_head'' which is set to ''1'' if the ''a-node'' corresponds to a finite verb, and to ''0'' otherwise. A block which, given an analytical tree (''SEnglishA''), fills each ''a-node'' with boolean attribute ''is_clause_head'' which is set to ''1'' if the ''a-node'' corresponds to a finite verb, and to ''0'' otherwise.
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 //Note//: ''get_children()'' returns topological node children in a tree, while ''get_eff_children()'' returns node children in a linguistic sense. Mostly, these do not differ. //Note//: ''get_children()'' returns topological node children in a tree, while ''get_eff_children()'' returns node children in a linguistic sense. Mostly, these do not differ.
  
 +==== Advanced version ====
  
- +The output of our block might still be incorrect in special cases - we don't solve coordination (see the second sentence in sample.txt) and subordinate conjunctions.
-//Advanced version//: The output of our block might still be incorrect in special cases - we don't solve coordination (see the second sentence in sample.txt) and subordinate conjunctions.+
  
  
  
 ===== Your turn: more tasks ===== ===== Your turn: more tasks =====
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   * For debugging, a method returning surface word order of a node is useful: ''$node<nowiki>-></nowiki>get_attr('ord')''. It can be used to print out nodes sorted by attribute ''ord''.   * For debugging, a method returning surface word order of a node is useful: ''$node<nowiki>-></nowiki>get_attr('ord')''. It can be used to print out nodes sorted by attribute ''ord''.
   * Once you have node ''$object'' and node ''$verb'', use method ''$object<nowiki>-></nowiki>shift_before_node($verb)''. This method takes the whole subtree under node ''$object'' and re-counts the attributes ''ord'' (surface word order) so that all nodes in subtree under ''$object'' have smaller ''ord'' than ''$verb''. That is, the method rearranges the surface word order from VO to OV.   * Once you have node ''$object'' and node ''$verb'', use method ''$object<nowiki>-></nowiki>shift_before_node($verb)''. This method takes the whole subtree under node ''$object'' and re-counts the attributes ''ord'' (surface word order) so that all nodes in subtree under ''$object'' have smaller ''ord'' than ''$verb''. That is, the method rearranges the surface word order from VO to OV.
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 +**Advanced version**: This solution shifts object (or more objects) of a verb just in front of that verb node. So f.e.: //Mr. Brown has urged MPs.// changes to: //Mr. Brown has MPs urged.// You can try to change this solution, so the final sentence would be: //Mr. Brown MPs has urged.// You may need a method ''$node->shift_after_subtree($root_of_that_subtree)''. Subjects should have attribute '''afun' eq 'Sb'''.
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   * To see the results, you can again use TrEd (''tmttred sample.tmt'')   * To see the results, you can again use TrEd (''tmttred sample.tmt'')
  
 +**Advanced version**: What happens in case of multiword prepositions? For example, ''because of'', ''instead of''. Can you handle it?
  
-//Advanced version//: What happens in case of multiword prepositions? For example, ''because of'', ''instead of''. Can you handle it? 
  
  
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   * [[http://ufallab2.ms.mff.cuni.cz/~bojar/cruise_control_tmt/last_doc/generated/guide/guidelines.html|TectoMT Developer's Guide]] - obsolete   * [[http://ufallab2.ms.mff.cuni.cz/~bojar/cruise_control_tmt/last_doc/generated/guide/guidelines.html|TectoMT Developer's Guide]] - obsolete
   * Questions? Ask ''kravalova'' at ''ufal.mff.cuni.cz''   * Questions? Ask ''kravalova'' at ''ufal.mff.cuni.cz''
-  * Solutions to this tutorial tasks are in ''libs/blocks/Tutorial/*solution.pm''.+  * Solutions to this tutorial tasks are in ''libs/blocks/Tutorial/*solution*.pm''.
   * [[http://ufal.mff.cuni.cz/~pajas/tred/|TrEd]] - tree editor   * [[http://ufal.mff.cuni.cz/~pajas/tred/|TrEd]] - tree editor
  

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