Generating Arabic words from semantic descriptions
This thesis addresses Arabic word generation from semantic descriptions. The purpose of this study is two-fold. Firstly, to analyse semantic specifications of Arabic derivation and, secondly, to build a computational model that performs Arabic lexical choices using a knowledge-base that is motivated by the semantics of derivation. Lexical choice in a highly derived language, such as Arabic, is non-trivial in MT and NLG systems where the semantic input cannot be biased directly towards the words that the language provides. On the linguistic side, the major contribution of this study is a new framework that organises semantic interactions in Arabic derivation in a two-layer semantics: an inner layer accounts for core meanings realised by Arabic consonantal roots and an outer layer accounts for semantic features associated with derivational moulds. The meaning of derived words can be established using controlled interactions between the two layers. The interactions, accordingly, state the link between semantic concepts on the one hand and their surface realisations on the other. Furthermore, derivational conditions imposed on the interactions account for many derivational gaps in Arabic. On the computational
Al-Jabri, S. K.
Generating Arabic words from semantic descriptions. This thesis addresses Arabic word generation from semantic descriptions. The purpose of this study is two-fold. Firstly, to analyse semantic specifications of Arabic derivation and, secondly, to build a computational model that performs Arabic lexical choices using a knowledge-base that is motivated by the semantics of derivation. Lexical choice in a highly derived language, such as Arabic, is non-trivial in MT and NLG systems where the semantic input cannot be biased directly towards the words that the language provides. On the linguistic side, the major contribution of this study is a new framework that organises semantic interactions in Arabic derivation in a two-layer semantics: an inner layer accounts for core meanings realised by Arabic consonantal roots and an outer layer accounts for semantic features associated with derivational moulds. The meaning of derived words can be established using controlled interactions between the two layers. The interactions, accordingly, state the link between semantic concepts on the one hand and their surface realisations on the other. Furthermore, derivational conditions imposed on the interactions account for many derivational gaps in Arabic. On the computational
generating arabic_word semantic description address arabic_word generation semantic description purpose_study two_fold firstly analyse semantic specification arabic derivation secondly build computational_model performs arabic lexical_choice use knowledge base motivate semantics derivation lexical_choice highly derived language arabic non_trivial system semantic input bias directly towards word language provide linguistic side major study new framework organise semantic interaction arabic derivation layer semantics inner layer account core meaning realise arabic consonantal root outer layer account semantic_feature associate derivational mould mean derive word establish use control interaction layer interaction accordingly state link semantic concept one_hand surface realisation other furthermore derivational condition impose interaction account many derivational gap arabic computational