Abstract
Information extraction (IE) techniques are capable of decoding targeted subject information in documents, and reducing text data into a set of structured core information. The implication for digital libraries is that IE potentially serves as an enabling tool to extend the value of digital document archives. We present an approach, called sandwich extraction pattern, to address the closely coupled template relation tasks. The approach provides interactive capabilities for task specification, domain knowledge acquisition, and output evaluation. This allows users (e.g. librarians) to have direct control on the design of value-added content products and the performance of IE tools. We conducted empirical validation by implementing an IE system, called SEP, and field testing it in a practical document archive. Encouraged by successful test runs, NCCU library has formally initiated a project to develop a value-added content product of government personnel gazettes, including document images, electronic texts, and personnel changes database.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Applet, D.E., Israel, D.J.: Introduction to Information Extraction Technology. A Tutorial. In: Proceedings of the 16th Int’l Joint Conference on Artificial Intelligence (1999)
Ciravegna, F.: Adaptive Information Extraction from Text by Rule Induction and Generalisation. In: Proceedings of the 17th IJCAI, pp. 1251–1256 (2001)
Grishman, R.: Information Extraction: Techniques and Challenges. In: Pazienza, M.T. (ed.) SCIE 1997. LNCS, vol. 1299, pp. 10–27. Springer, Heidelberg (1997)
Mohri, M.: Finite-State Transducers in Language and Speech Processing. Computational Linguistics 23(2), 269–311 (1997)
Saracevic, T., Kantor, P.B.: Studying the Value of Library and Information Services, Part I: Establishing a Theoretical Framework. Journal of the American Society for Information Science 48(6), 527–542 (1997)
Soderland, S.: Learning Information Extraction Rules for Semi-Structured and Free Text. Machine Learning 34(1-3), 233–272 (1999)
Wilks, Y., Catizone, R.: Can We Make Information Extraction More Adaptive? In: Pazienza, M.T. (ed.) SCIE 1999. LNCS (LNAI), vol. 1714, Springer, Heidelberg (1999)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Liu, JS., Lee, CY. (2006). Extracting Structured Subject Information from Digital Document Archives. In: Sugimoto, S., Hunter, J., Rauber, A., Morishima, A. (eds) Digital Libraries: Achievements, Challenges and Opportunities. ICADL 2006. Lecture Notes in Computer Science, vol 4312. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11931584_17
Download citation
DOI: https://doi.org/10.1007/11931584_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-49375-4
Online ISBN: 978-3-540-49377-8
eBook Packages: Computer ScienceComputer Science (R0)