1 STRUCTURAL AND LEXICAL TRANSFER from a UNL GRAPH to a NATURAL LANGUAGE DEPENDENCY TREE Etienne BLANC, Gilles SERASSET, WangJu TSAI GETA, CLIPS-IMAG

2 Natural Language Generator (tree input ) Graph to Tree Transfer Module Voici le résultat e cette traduction dpuis un graphe UNL UNL graph NL treeNL text

3 Tree to Graph Transfer Module Natural Language Analyser (tree output ) UNL graph NL tree Voici le résultat e cette traduction dpuis un graphe UNL NL text

Principle of the graph to tree transfer - 2. Our tools - 3. Discussion

5 1. Principle of the graph to tree transfer (structural transfer) 1.1 Graph having already a tree structure watch applehe agt obj Graph structure watch applehe agtobj Tree structure

6 1.2 A node of the graph has several mother nodes : reverting relations He was watching the falling apple. watch applehe agt obj fall obj Graph structure watch applehe agt obj fall obj Graph structure 1. Principle of the graph to tree transfer (structural transfer)

7 1.2 A node of the graph has several mother nodes : reverting relations He was watching the falling apple. watch applehe agt obj fall obj Graph structure watch applehe agtobj fall INV(obj) Tree structure 1. Principle of the graph to tree transfer (structural transfer)

8 1.3 Opening a closed circuit. He eats his apple. pos(apple, he(icl>human)) Graph structure Tree structure eat applehe:1 agt obj he:1 pos eat applehe agt obj pos 1. Principle of the graph to tree transfer (structural transfer)

9 1.3 Processing a compound UW. Isaac sees that an apple fall and he explains it. Graph structure noun)) agt(see(icl>do),Isaac(icl>proper noun) obj(see(icl>do),:01) explain Isaac agt see agt :01 obj and :01 apple fall obj 1. Principle of the graph to tree transfer (structural transfer) explain Isaac:01 agt see :01 obj and apple fall obj Isaac:01 agt :01 obj Tree structure

10 1. Principle of the graph to tree transfer (lexical transfer) centre center(icl>place) 1.4 : human « monolingual use » of the the PARAX-UNL database.

11 1. Principle of the graph to tree transfer (lexical transfer) 1.5 « multilingual use » of the database.

12 GENERATIONGENERATION T R A N S F E R ANALYSISANALYSIS 2. Our tools 2.1 The ARIANE generator of MT systems

13 T R A N S F E R GENERATIONGENERATION 2. Our tools 2.2 ARIANE based UNL deconverter (working)

14 2. Our tools 2.3 ARIANE based UNL enconverter (developing) T R A N S F E R ANALYSISANALYSIS

15 2. Our tools 2.4 The « tree based » graph editor

16 2. Our tools 2.4 The « tree based » graph editor

17 2. Our tools 2.4 The « tree based » graph editor

18 sistema 2. Our tools 2.4 The « tree based » graph editor

19 2. Our tools 2.4 The « tree based » graph editor

20 2. Our tools 2.4 The « tree based » graph editor

21 2. Our tools 2.4 The « tree based » graph editor

22 2. Our tools 2.4 The « tree based » graph editor

23 2. Our tools 2.4 The « tree based » graph editor

24 2. Our tools 2.4 The « tree based » graph editor

25 3. Discussion