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document analysis
As more and more scientific documents become available in PDF format, their automatic analysis becomes increasingly important. We present a procedure that extracts mathematical symbols from PDF documents by examining both the original PDF file and a rasterized version. This provides more precise information than is available either directly from the PDF file or by traditional character recognition techniques. The data can then be used to improve mathematical parsing methods that transform the mathematics into richer formats such as MathML.
1. Proberts, S., Brailsford, D.: Substituting Outline Fonts for Bitmap Fonts in Archived PDF Files. In Soft. Pract Exper., 33(9) pp. 885–899, 2003.
2. Phelps, T.: Multivalent.
3. Rahman, F., Alam, H.: Conversion of PDF documents into HTML: A case study of document image analysis. In Conf. on Signal, Systems, Computers pp. 87–91, 2003.
4. Shao, M., Futrelle, R.: Graphics recognition in PDF documents. In Proc. of GREC 2005, LNCS 3926. Springer, 2006.
5. Raja, A., Rayner, M., Sexton, A., Sorge, V.: Towards a parser for mathematical formula recognition. In Proc. of MKM 2006, LNCS 4108. pp. 139–151, Springer, 2006. Zbl 1188.68284
6. Grbavec, A., Blostein, D.: Mathematics recognition using graph rewriting. In Proc. of ICDAR ’95, pp. 417–421, 1995.
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