@inproceedings{mohamed-etal-2012-annotating,
title = "Annotating and Learning Morphological Segmentation of {E}gyptian Colloquial {A}rabic",
author = "Mohamed, Emad and
Mohit, Behrang and
Oflazer, Kemal",
editor = "Calzolari, Nicoletta and
Choukri, Khalid and
Declerck, Thierry and
Do{\u{g}}an, Mehmet U{\u{g}}ur and
Maegaard, Bente and
Mariani, Joseph and
Moreno, Asuncion and
Odijk, Jan and
Piperidis, Stelios",
booktitle = "Proceedings of the Eighth International Conference on Language Resources and Evaluation ({LREC}'12)",
month = may,
year = "2012",
address = "Istanbul, Turkey",
publisher = "European Language Resources Association (ELRA)",
url = "http://www.lrec-conf.org/proceedings/lrec2012/pdf/465_Paper.pdf",
pages = "873--877",
abstract = "We present an annotation and morphological segmentation scheme for Egyptian Colloquial Arabic (ECA) in which we annotate user-generated content that significantly deviates from the orthographic and grammatical rules of Modern Standard Arabic and thus cannot be processed by the commonly used MSA tools. Using a per letter classification scheme in which each letter is classified as either a segment boundary or not, and using a memory-based classifier, with only word-internal context, prove effective and achieve a 92{\%} exact match accuracy at the word level. The well-known MADA system achieves 81{\%} while the per letter classification scheme using the ATB achieves 82{\%}. Error analysis shows that the major problem is that of character ambiguity since the ECA orthography overloads the characters which would otherwise be more specific in MSA, like the differences between y ({\`U}) and Y ({\`U}) and A ({\O}{\S}) , {\textgreater} ( {\O}{\pounds}), and {\textless} ({\O}¥) which are collapsed to y ({\`U}) and A ({\O}{\S}) respectively or even totally confused and interchangeable. While normalization helps alleviate orthographic inconsistencies, it aggravates the problem of ambiguity.",
}
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<abstract>We present an annotation and morphological segmentation scheme for Egyptian Colloquial Arabic (ECA) in which we annotate user-generated content that significantly deviates from the orthographic and grammatical rules of Modern Standard Arabic and thus cannot be processed by the commonly used MSA tools. Using a per letter classification scheme in which each letter is classified as either a segment boundary or not, and using a memory-based classifier, with only word-internal context, prove effective and achieve a 92% exact match accuracy at the word level. The well-known MADA system achieves 81% while the per letter classification scheme using the ATB achieves 82%. Error analysis shows that the major problem is that of character ambiguity since the ECA orthography overloads the characters which would otherwise be more specific in MSA, like the differences between y (Ù) and Y (Ù) and A (ا) , \textgreater ( Ø£), and \textless (Ø¥) which are collapsed to y (Ù) and A (ا) respectively or even totally confused and interchangeable. While normalization helps alleviate orthographic inconsistencies, it aggravates the problem of ambiguity.</abstract>
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%0 Conference Proceedings
%T Annotating and Learning Morphological Segmentation of Egyptian Colloquial Arabic
%A Mohamed, Emad
%A Mohit, Behrang
%A Oflazer, Kemal
%Y Calzolari, Nicoletta
%Y Choukri, Khalid
%Y Declerck, Thierry
%Y Doğan, Mehmet Uğur
%Y Maegaard, Bente
%Y Mariani, Joseph
%Y Moreno, Asuncion
%Y Odijk, Jan
%Y Piperidis, Stelios
%S Proceedings of the Eighth International Conference on Language Resources and Evaluation (LREC’12)
%D 2012
%8 May
%I European Language Resources Association (ELRA)
%C Istanbul, Turkey
%F mohamed-etal-2012-annotating
%X We present an annotation and morphological segmentation scheme for Egyptian Colloquial Arabic (ECA) in which we annotate user-generated content that significantly deviates from the orthographic and grammatical rules of Modern Standard Arabic and thus cannot be processed by the commonly used MSA tools. Using a per letter classification scheme in which each letter is classified as either a segment boundary or not, and using a memory-based classifier, with only word-internal context, prove effective and achieve a 92% exact match accuracy at the word level. The well-known MADA system achieves 81% while the per letter classification scheme using the ATB achieves 82%. Error analysis shows that the major problem is that of character ambiguity since the ECA orthography overloads the characters which would otherwise be more specific in MSA, like the differences between y (Ù) and Y (Ù) and A (ا) , \textgreater ( Ø£), and \textless (Ø¥) which are collapsed to y (Ù) and A (ا) respectively or even totally confused and interchangeable. While normalization helps alleviate orthographic inconsistencies, it aggravates the problem of ambiguity.
%U http://www.lrec-conf.org/proceedings/lrec2012/pdf/465_Paper.pdf
%P 873-877
Markdown (Informal)
[Annotating and Learning Morphological Segmentation of Egyptian Colloquial Arabic](http://www.lrec-conf.org/proceedings/lrec2012/pdf/465_Paper.pdf) (Mohamed et al., LREC 2012)
ACL