versión On-line ISSN 1870-9044
Polibits no.43 México ene./jun. 2011
Keywords Identification within Greek URLs
MariaAlexandra Vonitsanou1, Lefteris Kozanidis2, and Sofia Stamou3
1 Computer Engineering and Informatics Department, Patras University, 26500, Greece (email: email@example.com).
2 Computer Engineering and Informatics Department, Patras University, 26500, Greece (email: firstname.lastname@example.org).
3 Computer Engineering and Informatics Department, Patras University, 26500, Greece and the Department of Archives and Library Science, Ionian University, 49100, Greece (email: email@example.com).
Manuscript received November 1, 2010.
Manuscript accepted for publication January 21, 2011.
In this paper we propose a method that identifies and extracts keywords within URLs, focusing on the Greek Web and especially on URLs containing Greek terms. Although there are previous works on how to process Greek online content, none of them focuses on keyword identification within URLs of the Greek web domain. In addition, there are many known techniques for web page categorization based on URLs but, none addresses the case of URLs containing transliterated Greek terms. The proposed method integrates two components; a URL tokenizer that segments URL tokens into meaningful words and a LatintoGreek script transliteration engine that relies on a dictionary and a set of orthographic and syntactic rules for converting Latin verbalized word tokens into Greek terms. The experimental evaluation of our method against a sample of 1,000 Greek URLs reveals that it can be fruitfully exploited towards automatic keyword identification within Greek URLs.
Key words: Greek to Latin character set transliteration, Greeklish to Greek transliteration, keyword extraction, Uniform Resource Locator, word segmentation.
 S. Dumays and H. Chen, "Hierarchical classification of web content," in Proceedings of the 23rd annual international ACM SIGIR Conference on Research and development in information retrieval, Velingrad, Bulgaria, 2000, pp. 256263. [ Links ]
 S. Chakrabarti, K. Punera, and M. Subramanyam, "Accelerated focused crawling through online relevance feedback," in Proceedings of the International World Wide Web Conference (WWW2002), Honolulu, 2002, pp. 251262. [ Links ]
 M.Y. Kan, "Metadata extraction and text categorization using Universal Resource Locator expansions", National University of Singapore, Department of Computer Science, Technical Report, TR 10/03, 2003. [ Links ]
 M.Y. Kan, "Web page classification without the web page," in Proceedings of the 13 th. International World Wide Web Conference (WWW2004), New York, USA, 2004, pp. 262263. [ Links ]
 M.Y. Kan and H.O.N. Thi, "Fast webpage classification using url features," in CIKM 2005: Proceedings of the 14th ACM international conference on Information and knowledge management. New York, USA: ACM, 2004, p. 325326. [ Links ]
 E. Baykan, M. Henzigner, L. Marian, and I. Weber, "Purely urlbased topic classification," in Proceedings of the 18th international World Wide Web Conference (WWW2009), Madrid, Spain, 2009, pp. 11091110. [ Links ]
 E. Baykan, M. Henzigner, and I. Weber, "Web page language identification based on URLs," in Proceedings of the VLDB Endowment 1(1), Auckland, New Zealand, 2008, pp. 176188. [ Links ]
 S. Stamou, L. Kozanidis, P. Tzekou, and N. Zotos, "Query selection for improved Greek web searches." in Proceedings of the 2nd International CIKM Workshop on Improving Web Retrieval for nonEnglish Queries, CA, USA, 2008, pp. 6370. [ Links ]
 P. Tzekou, S. Stamou, N. Zotos, and L. Kozanidis, "Querying the Greek web in greeklish," in Proceedings of the SIGIR Workshop on Improving Web Retrieval for nonEnglish Queries, Amsterdam, Netherlands, 2007, pp. 2938. [ Links ]
 D. Farmakiotou, V. Karkaletsis, G. Samaritakis, G. Petasis, and D. Spyropoulos, "Named entity recognition in Greek web pages," in Proceedings Companion Volume of 2nd Hellenic Conference on Artificial Intelligence (SETN02), Thessaloniki, Greece, 2002, pp. 91102. [ Links ]
 A. Chalamandaris, A. Protopapas, P. Tsiakoulis, and S. Raptis, "All greek to me! an automatic greeklish to greek transliteration system," in Proceedings of 5th International Conference on Language Resources and Evaluation (LREC 2006), Genoa, Italy, 2006, pp. 12261229. [ Links ]
 A. Karakos, "Greeklish: An experimental interface for automatic transliteration," Journal of the American Society for Information Science and Technology, vol. 54, pp. 10691074, 2003. [ Links ]
 C. Lampos, M. Eirinaki, D. Jevtuchova, and M. Varzigiannis, "Archiving the greek web," in Proceedings of the 4th Intl. Web Archiving Workshop, Bath, UK, 2004. [ Links ]