Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AltecOnDB: A Large-Vocabulary Arabic Online Handwriting Recognition
  Database   Arabic is a semitic language characterized by a complex and rich morphology.
The exceptional degree of ambiguity in the writing system, the rich morphology,
and the highly complex word formation process of roots and patterns all
contribute to making computational approaches to Arabic very challenging. As a
result, a practical handwriting recognition system should support large
vocabulary to provide a high coverage and use the context information for
disambiguation. Several research efforts have been devoted for building online
Arabic handwriting recognition systems. Most of these methods are either using
their small private test data sets or a standard database with limited lexicon
and coverage. A large scale handwriting database is an essential resource that
can advance the research of online handwriting recognition. Currently, there is
no online Arabic handwriting database with large lexicon, high coverage, large
number of writers and training/testing data.
  In this paper, we introduce AltecOnDB, a large scale online Arabic
handwriting database. AltecOnDB has 98% coverage of all the possible PAWS of
the Arabic language. The collected samples are complete sentences that include
digits and punctuation marks. The collected data is available on sentence, word
and character levels, hence, high-level linguistic models can be used for
performance improvements. Data is collected from more than 1000 writers with
different backgrounds, genders and ages. Annotation and verification tools are
developed to facilitate the annotation and verification phases. We built an
elementary recognition system to test our database and show the existing
difficulties when handling a large vocabulary and dealing with large amounts of
styles variations in the collected data.

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The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: q-bio
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas