\relax 
\bibstyle{plainnat}
\citation{abney91}
\@writefile{toc}{\contentsline {section}{\numberline {1}Introduction}{595}}
\citation{sang00b}
\citation{ratnaparkhi98a}
\citation{abney96b}
\citation{mokhtar97}
\citation{voutilainen93}
\citation{ramshaw95}
\citation{daelemans99}
\citation{argamon98}
\citation{sang00d}
\citation{orasan00}
\citation{tksdj2001}
\citation{church88}
\citation{merialdo94}
\citation{Brants:00a}
\@writefile{toc}{\contentsline {section}{\numberline {2}Shallow parsing as HMM-based tagging}{597}}
\newlabel{sectLex}{{2}{597}}
\newlabel{eq1}{{1}{597}}
\newlabel{eq2}{{2}{597}}
\citation{kim99}
\citation{sang-zoo00}
\citation{pla2001b}
\@writefile{lof}{\contentsline {figure}{\numberline {1}{\ignorespaces Example of the result of applying specialization on a sentence.}}{598}}
\newlabel{fig-example-esp}{{1}{598}}
\citation{Brants:00a}
\citation{sang00d}
\citation{ramshaw95}
\citation{brill95a}
\@writefile{toc}{\contentsline {section}{\numberline {3}Chunking evaluation}{599}}
\newlabel{chunking}{{3}{599}}
\@writefile{lot}{\contentsline {table}{\numberline {1}{\ignorespaces Overall chunking results on the development data set using Specialized HMMs with different specialization criteria.}}{601}}
\newlabel{tab_EspCriteria_dev}{{1}{601}}
\@writefile{lot}{\contentsline {table}{\numberline {2}{\ignorespaces Overall chunking results on the shared task using Specialized HMMs with different specialization criteria.}}{602}}
\newlabel{tab_EspCriteria}{{2}{602}}
\@writefile{lot}{\contentsline {table}{\numberline {3}{\ignorespaces Chunking results on the test set of the shared task using Specialized HMMs with the {\bf  SP\nobreakspace  {}+\nobreakspace  {}Lex-COM} criterion.}}{602}}
\newlabel{tab_shared_task}{{3}{602}}
\@writefile{lof}{\contentsline {figure}{\numberline {2}{\ignorespaces Improvement on F$_\beta $ rate for certain chunks on the shared task using Specialized HMMs.}}{603}}
\newlabel{f1}{{2}{603}}
\@writefile{lof}{\contentsline {figure}{\numberline {3}{\ignorespaces Evolution of the F$_{\beta }$ rate using training sets of different size.}}{603}}
\newlabel{figa1}{{3}{603}}
\citation{dejean00}
\citation{johansson00}
\citation{veenstra00}
\citation{daelemans97}
\@writefile{lot}{\contentsline {table}{\numberline {4}{\ignorespaces Chunking results, on the test of the shared task with large training data set, using Specialized HMMs with {\bf  SP\nobreakspace  {}+\nobreakspace  {}Lex-COM} criterion. }}{604}}
\newlabel{tab_shared_task_PLUS}{{4}{604}}
\@writefile{toc}{\contentsline {section}{\numberline {4}Comparison with other chunking approaches}{604}}
\newlabel{comparison}{{4}{604}}
\citation{osborne00}
\citation{ratnaparkhi96}
\citation{koeling00}
\citation{pla2000c}
\citation{zhou00}
\citation{kudo00}
\citation{kudo2001}
\citation{sang00c}
\citation{vanhalteren00}
\citation{li2001}
\citation{zhan01}
\citation{osborne00}
\citation{koeling00}
\citation{zhou00}
\citation{sang00c}
\citation{zhan01}
\citation{li2001}
\@writefile{lot}{\contentsline {table}{\numberline {5}{\ignorespaces $F_{\beta }$ results of the different shallow parsing systems related and a comparison of the information used by them in the learning process. }}{606}}
\newlabel{tabla-rasgos}{{5}{606}}
\citation{osborne00}
\citation{zhou00}
\citation{osborne00}
\citation{zhou00}
\citation{osborne00}
\citation{pla2000c}
\citation{pla2000a}
\citation{tksdj2001}
\citation{molina2001}
\@writefile{toc}{\contentsline {section}{\numberline {5}Clause identification}{607}}
\@writefile{lof}{\contentsline {figure}{\numberline {4}{\ignorespaces Example of the result of applying specialization on a sample of the training set used in clause-splitting.}}{608}}
\newlabel{fig-clause}{{4}{608}}
\citation{tksdj2001}
\citation{carreras2001conll}
\citation{tks2001conll}
\citation{patrick2001conll}
\citation{dejean2001conll}
\citation{hammerton2001conll}
\citation{pla2001b}
\citation{pla2001a}
\@writefile{lot}{\contentsline {table}{\numberline {6}{\ignorespaces Clause-splitting results of the different systems presented in the shared task of CoNLL-2001.}}{609}}
\newlabel{tab-rdo-claus}{{6}{609}}
\@writefile{toc}{\contentsline {section}{\numberline {6}Concluding remarks}{609}}
\bibcite{abney91}{{1}{1991}{{Abney}}{{}}}
\bibcite{abney96b}{{2}{1996}{{Abney}}{{}}}
\bibcite{mokhtar97}{{3}{1997}{{A{\"\i }t-Mokhtar and Chanod}}{{}}}
\bibcite{argamon98}{{4}{1998}{{Argamon et~al.}}{{Argamon, Dagan, and Krymolowski}}}
\bibcite{Brants:00a}{{5}{2000}{{Brants}}{{}}}
\bibcite{brill95a}{{6}{1995}{{Brill}}{{}}}
\bibcite{carreras2001conll}{{7}{2001}{{Carreras and M{\`a}rquez}}{{}}}
\bibcite{church88}{{8}{1988}{{Church}}{{}}}
\bibcite{daelemans99}{{9}{1999}{{Daelemans et~al.}}{{Daelemans, Buchholz, and Veenstra}}}
\bibcite{daelemans97}{{10}{1997}{{Daelemans et~al.}}{{Daelemans, Van~den Bosch, and Weijters}}}
\bibcite{dejean00}{{11}{2000}{{D\'{e}jean}}{{}}}
\bibcite{dejean2001conll}{{12}{2001}{{D{\'e}jean}}{{}}}
\bibcite{hammerton2001conll}{{13}{2001}{{Hammerton}}{{}}}
\bibcite{johansson00}{{14}{2000}{{Johansson}}{{}}}
\bibcite{kim99}{{15}{1999}{{Kim et~al.}}{{Kim, Lee, and Rim}}}
\bibcite{koeling00}{{16}{2000}{{Koeling}}{{}}}
\bibcite{kudo00}{{17}{2000}{{Kudo and Matsumoto}}{{}}}
\bibcite{kudo2001}{{18}{2001}{{Kudo and Matsumoto}}{{}}}
\bibcite{sang-zoo00}{{19}{2000}{{Lee et~al.}}{{Lee, ichi Tsujii, and Rim}}}
\bibcite{li2001}{{20}{2001}{{Li and Roth}}{{}}}
\bibcite{merialdo94}{{21}{1994}{{Merialdo}}{{}}}
\bibcite{molina2001}{{22}{2001}{{Molina and Pla}}{{}}}
\bibcite{orasan00}{{23}{2000}{{Orasan}}{{}}}
\bibcite{osborne00}{{24}{2000}{{Osborne}}{{}}}
\bibcite{patrick2001conll}{{25}{2001}{{Patrick and Goyal}}{{}}}
\bibcite{pla2001b}{{26}{2001}{{Pla and Molina}}{{}}}
\bibcite{pla2000a}{{27}{2000{a}}{{Pla et~al.}}{{Pla, Molina, and Prieto}}}
\bibcite{pla2000c}{{28}{2000{b}}{{Pla et~al.}}{{Pla, Molina, and Prieto}}}
\bibcite{pla2001a}{{29}{2001}{{Pla et~al.}}{{Pla, Molina, and Prieto}}}
\bibcite{ramshaw95}{{30}{1995}{{Ramshaw and Marcus}}{{}}}
\bibcite{ratnaparkhi96}{{31}{1996}{{Ratnaparkhi}}{{}}}
\bibcite{ratnaparkhi98a}{{32}{1998}{{Ratnaparkhi}}{{}}}
\bibcite{sang00c}{{33}{2000}{{Tjong Kim~Sang}}{{}}}
\bibcite{tks2001conll}{{34}{2001}{{Tjong Kim~Sang}}{{}}}
\bibcite{sang00d}{{35}{2000}{{Tjong Kim~Sang and Buchholz}}{{}}}
\bibcite{sang00b}{{36}{2000}{{Tjong Kim~Sang et~al.}}{{Tjong Kim~Sang, Daelemans, D^^82jean, Koeling, Krymolowsky, Punyakanok, and Roth}}}
\bibcite{tksdj2001}{{37}{2001}{{Tjong Kim~Sang and D{\'e}jean}}{{}}}
\bibcite{vanhalteren00}{{38}{2000}{{Van~Halteren}}{{}}}
\bibcite{veenstra00}{{39}{2000}{{Veenstra and Van~den Bosch}}{{}}}
\bibcite{voutilainen93}{{40}{1993}{{Voutilainen}}{{}}}
\bibcite{zhan01}{{41}{2001}{{Zhang et~al.}}{{Zhang, Damerau, and Johnson}}}
\bibcite{zhou00}{{42}{2000}{{Zhou et~al.}}{{Zhou, Su, and Tey}}}