508 research outputs found
Involving users in OPAC interface design: Perspective from a UK study
This is the post-print versoin of the Article. The official published version can be accessed from the link below - Copyright @ 2007 SpringerThe purpose of this study was to determine user suggestions for a typical OPAC (Online Public Library Catalogue) applicationâs functionality and features. An experiment was undertaken to find out the type of interactions features that users prefer to have in an OPAC. The study revealed that regardless of usersâ Information Technology (IT) backgrounds, their functionality expectations of OPACs are the same. However, based on usersâ previous experiences with OPACs, their requirements with respect to specific features may change. Users should be involved early in the OPAC development cycle process in order to ensure usable and functional interface
Security guidelines for field research in complex, remote and hazardous places
These guidelines assist researchers in conducting their field-based research or fieldwork in hazardous, remote or complex environments as safely and securely as possible. Fieldwork comes with risks, ranging from the mundane risks of car accidents to more exceptional risks of encountering violence. These risks may affect the security of the researcher and the research outcomes, as well as the security of the respondents, local assistants and interpreters, the home and host organizations, and research sponsors. Taking into account the risk environment should be
"5 Days in August" â How London Local Authorities used Twitter during the 2011 riots
© IFIP International Federation for Information Processing 2012This study examines effects of microblogging communications during emergency events based on the case of the summer 2011 riots in London. During five days in August 2011, parts of London and other major cities in England suffered from extensive public disorders, violence and even loss of human lives. We collected and analysed the tweets posted by the official accounts maintained by 28 London local government authorities. Those authorities used Twitter for a variety of purposes such as preventing rumours, providing official information, promoting legal actions against offenders and organising post-riot community engagement activities. The study shows how the immediacy and communicative power of microblogging can have a significant effect at the response and recovery stages of emergency events
Sentiment Analysis in Twitter for Spanish
The final publication is available at Springer via http://dx.doi.org/ 10.1007/978-3-319-07983-7_27This paper describes a SVM-approach for Sentiment Analysis
(SA) in Twitter for Spanish. This task was part of the TASS2013
workshop, which is a framework for SA that is focused on the Spanish
language. We describe the approach used, and we present an experimental
comparison of the approaches presented by the di erent teams
that took part in the competition. We also describe the improvements
that were added to our system after our participation in the competition.
With these improvements, we obtained an accuracy of 62.88% and
70.25% on the SA test set for 5-level and 3-level tasks respectively. To
our knowledge, these results are the best results published until now for
the SA tasks of the TASS2013 workshop.This work has been funded by the projects, DIANA (MEC TIN2012-38603-C02-01) and TĂmpano (MEC TIN2011-28169-C05-01).Pla SantamarĂa, F.; Hurtado Oliver, LF. (2014). Sentiment Analysis in Twitter for Spanish. En Natural Language Processing and Information Systems. Springer
Lecture Notes in Computer Science Volume 8455 2014. 208-213. https://doi.org/10.1007/978-3-319-07983-7_27S208213Barbosa, L., Feng, J.: Robust sentiment detection on Twitter from biased and noisy data. In: Proceedings of the 23rd International Conference on Computational Linguistics: Posters, Association for Computational Linguistics, pp. 36â44 (2010)Jansen, B.J., Zhang, M., Sobel, K., Chowdury, A.: Twitter power: Tweets as electronic word of mouth. Journal of the American Society for Information Science and Technology 60(11), 2169â2188 (2009)Liu, B., Hu, M., Cheng, J.: Opinion observer: Analyzing and comparing opinions on the web. In: Proceedings of the 14th International Conference on World Wide Web, WWW 2005, pp. 342â351. ACM, New York (2005)MartĂnez-CĂĄmara, E., MartĂn-Valdivia, M.T., Ureña-LĂłpez, L.A., Montejo-RaĂ©z, A.: Sentiment analysis in twitter. Natural Language Engineering 1(1), 1â28 (2012)OâConnor, B., Krieger, M., Ahn, D.: Tweetmotif: Exploratory search and topic summarization for twitter. In: Cohen, W.W., Gosling, S. (eds.) Proceedings of the Fourth International Conference on Weblogs and Social Media, ICWSM 2010, Washington, DC, USA, May 23-26, The AAAI Press (2010)PadrĂł, L., Stanilovsky, E.: Freeling 3.0: Towards wider multilinguality. In: Proceedings of the Language Resources and Evaluation Conference (LREC 2012). ELRA, Istanbul (2012)Pang, B., Lee, L., Vaithyanathan, S.: Thumbs up? sentiment classification using machine learning techniques. In: Proceedings of EMNLP, pp. 79â86 (2002)Perez-Rosas, V., Banea, C., Mihalcea, R.: Learning sentiment lexicons in spanish. In: Chair, N.C.C., Choukri, K., Declerck, T., Doǧan, M.U., Maegaard, B., Mariani, J., Odijk, J., Piperidis, S. (eds.) Proceedings of the Eight International Conference on Language Resources and Evaluation (LREC 2012). European Language Resources Association (ELRA), Istanbul (2012)Pla, F., Hurtado, L.F.: AnĂĄlisis de sentimientos en twitter. In: Proceedings of the TASS workshop at SEPLN 2013, IV Congreso Español de InformĂĄtica (2013)Saralegi, X., San Vicente, I.: Elhuyar at tass 2013. In: Proceedings of the TASS workshop at SEPLN 2013, IV Congreso Español de InformĂĄtica (2013)Schölkopf, B., Smola, A.J., Williamson, R.C., Bartlett, P.L.: New support vector algorithms. Neural Comput. 12(5), 1207â1245 (2000)Turney, P.D.: Thumbs up or thumbs down? semantic orientation applied to unsupervised classification of reviews. In: ACL, pp. 417â424 (2002)Villena-RomĂĄn, J., GarcĂa-Morera, J.: Workshop on sentiment analysis at sepln 2013: An over view. In: Proceedings of the TASS Workshop at SEPLN 2013, IV Congreso Español de InformĂĄtica (2013)Vinodhini, G., Chandrasekaran, R.: Sentiment analysis and opinion mining: A survey. International Journal 2(6) (2012)Wilson, T., Hoffmann, P., Somasundaran, S., Kessler, J., Wiebe, J., Choi, Y., Cardie, C., Riloff, E., Patwardhan, S.: Opinionfinder: A system for subjectivity analysis. In: Proceedings of HLT/EMNLP on Interactive Demonstrations, Association for Computational Linguistics, pp. 34â35 (2005)Wilson, T., Kozareva, Z., Nakov, P., Rosenthal, S., Stoyanov, V., Ritter, A.: Semeval-2013 task 2: Sentiment analysis in twitter. In: Proceedings of the International Workshop on Semantic Evaluation, SemEval, vol. 13 (2013
A log analysis study of 10 years of ebook consumption in academic library collections
Even though libraries have been offering eBooks for more than a decade, very little is known about eBook access and consumption in academic library collections. This paper addresses this gap with a log analysis study of eBook access at the library of the University of Waikato. This in-depth analysis covers a period spanning 10 years of eBook use at this university. We draw conclusions about the use of eBooks at this institution and compare the results with other published studies of eBook usage at tertiary institutes
A technique for thoracic duct-portal vein anastomosis in the dog
A technique for effecting a thoracic duct-portal vein anastomosis in dogs is
described.The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format
- âŠ