3d city models for urban gis

Ngày tải lên: 24/11/2014, 00:12

Ngày tải lên: 05/09/2013, 08:40

Ngày tải lên: 05/09/2013, 09:08

... environmental components as SPM concentration for the whole water layer. So the system of models should be based on the 3D thermo- hydrodynamical models for each particular environment that contains ... (2003). 3. Model for suspended particulate matter transport and bottom bathymetry evolution The model for SPM and bottom bathymetry evolution includes 2 sub -models: 3D SPM Model for water column ... Conclusion The preliminary results for the combined system of 2D, 3D hydrodynamic- environmental models for SPM and bottom layer change show the ability to forecast the fate and transport of...

Ngày tải lên: 13/02/2014, 12:20

... constant for component i in cavity m d density (eq. 4.29) or temperature-dependent diameter D Diffusion coefficient or dielectric constant E modulus of Elasticity f fugacity, bar f fugacity, bar F Force G ... n these models are used for design purposes, typically within a commercial simulation package. Applications in the oil and gas and chemical sectors are emphasized but models suitable for polymers ... Ltd Registered office John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom For details of our global editorial offices, for customer services and for...

Ngày tải lên: 18/02/2014, 15:20

... trip-ratio (excluding pedestrians) was 39 % for cars, 44 % for buses and 11 % for cyclists. This compares with 54 % for private cars and 27 % for buses in 1991 before the implementation of the OTS (cycling as ... removal of cars from the city centre to allow space for pedestrians and cyclists has improved the quality of life for everyone, for those living and working in the city, and for tourists. Kleber ... ‘Opportunities for regeneration’ Queen’s Square: before (left) and after (right) renovation Source: Wolverhampton City Council. WOLVERHAMPTON CITY CENTRE EUROPEAN COMMISSION Directorate-General for the...

Ngày tải lên: 19/02/2014, 04:20

... unseen for a given domain s, we are already performing an implicit form of smoothing (when computing the expected counts), since each docu- ment has a distribution over all topics, and therefore we ... opposite is true, with the LTM models achieving better per- formance. 6 On the NIST corpus, LTM-10 again achieves the best gain of approximately 1 BLEU and up to 3 TER. LTM performs on par with or better ... consistent within a document. Results Results for both settings are shown in Ta- ble 2. GTM models the latent topics at the document level, while LTM models each sentence as a separate document....

Ngày tải lên: 19/02/2014, 19:20

... Association for Computational Linguistics, pages 620–631, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Incremental Syntactic Language Models for Phrase-based ... syntactic language models score sen- tences in a similar left-to-right fashion, and are therefore a good mechanism for incorporat- ing syntax into phrase-based translation. We give a formal definition ... has effectively used n-gram word sequence models as language models. Modern phrase-based translation using large scale n-gram language models generally performs well in terms of lexical choice,...

Ngày tải lên: 20/02/2014, 04:20

... sentence-level prediction, using only labeled sentences for training. In a similar vein, Sauper et al. (2010) integrated gen- erative content structure models with discriminative models for multi-aspect sentiment summarization and ... using conditional models with shared parameters throughout allows for rich overlapping features, while maintaining simple and efficient in- ference and estimation. 3 Experiments For the following ... from http://www.sics.se/people/oscar/datasets. potentially improve the results of the interpolated model. For the same reason we allowed a maximum of 30 epochs, for all models, while T ă ackstr ă om and McDonald (2011) report a maximum...

Ngày tải lên: 20/02/2014, 05:20

... of person- alized models, we report the most significant fea- tures, sorted by Information Gain (IG), for three sample ASP Pers+Text models (Table 3). Interest- ingly, whereas for Pers 1 and Pers ... answer are significant, for Pers 3 non-textual features are most significant. We also report the top 10 features with the high- est information gain for the ASP and ASP Group models (Table 4). Interestingly, ... hour 0.08572 CA ratio ans ques Table 4: Top 10 features by information gain for ASP (trained for all askers) and ASP Group (trained for the group of askers with 20 to 29 questions) 4 Conclusions We...

Ngày tải lên: 20/02/2014, 09:20

... sentences t I 1 . Therefore, the same techniques (translation models, decoder al- gorithm, etc.) which have been developed for SMT can be used in CAT. Note that the statistical models are defined at word ... framework, real-time is re- quired. 4 Phrase-based models The usual statistical translation models can be classified as single-word based alignment models. Models of this kind assume that an input word ... Association for Computational Linguistics Statistical phrase-based models for interactive computer-assisted translation Jes ´ us Tom ´ as and Francisco Casacuberta Instituto Tecnol ´ ogico de Inform ´ atica Universidad...

Ngày tải lên: 20/02/2014, 12:20

... language. Those lexicon models lack from context infor- mation that can be extracted from the same paral- lel corpus. This additional information could be: Simple context information: information of the ... surrounding the word pair; Syntactic information: part-of-speech in- formation, syntactic constituent, sentence mood; Semantic information: disambiguation in- formation (e.g. from WordNet), cur- rent/previous ... fact that the algorithm for computing the -best lists is sub- optimal. Table 8: Preliminary translation results for the Verbmobil Test-147 for different contextual infor- mation and different...

Ngày tải lên: 20/02/2014, 18:20

... describe a technique for estimat- ing the parameters for this model using decision trees. The history-based grammar model provides a mechanism for taking advantage of contextual information from ... h Grammar and parse tree for aabb. dexed the non-terminal (NT) nodes of the tree with this leftmost order. We denote by ~- the sen- tential form obtained just before we expand node i. Hence, ... with information from dominat- ing constituents. All of these aspects of context are necessary for disambiguation, yet none is suf- ficient. We propose a probabilistic model of context for...

Ngày tải lên: 20/02/2014, 21:20

... Statistical Pattern Recognition. Doctoral dissertation. Stanford University, Stanford, Cali- fornia. 283 Statistical Decision-Tree Models for Parsing* David M. Magerman Bolt Beranek and Newman ... and in some cases long-distance structural information is also needed. Statistical models for 282 root - the node is the root of the tree. For an n word sentence, a parse tree has n leaf ... and 7 illustrate the performance of SPATTER as a function of sentence length. SPAT- TER's performance degrades slowly for sentences up to around 28 words, and performs more poorly and more...

Ngày tải lên: 20/02/2014, 22:20

... significant almost all training conditions for both languages; BLEU improvements are significant in all conditions for Finnish and for the two smallest training sets for German. The effect on the overall ... applied before training and after gener- ating the output in the target language. Normaliza- tion of English/German inflectional morphology to base forms for the purpose of word alignment is performed ... (Zitouni et al., 2003) for language modeling and by (Gildea, 2001) for semantic role labeling. (Resnik et al., 2001) used backoff trans- lation lexicons for cross-language information re- trieval....

Ngày tải lên: 22/02/2014, 02:20

... to improved performance for any method. One utterance of context is best for shift-reduce and start-join; three is best for the connection path method. The shift- reduce method performs the best. ... However, performance of all the methods for dialog act prediction is too low to be useful at the moment. In future work, we will ex- plore improved models for this task that make use of global information ... types of infor- mation provide rich clues for building dialog mod- els (Grosz and Sidner, 1986). Dialog models can be built ofine (for dialog mining and summariza- tion), or online (for dialog...

Ngày tải lên: 22/02/2014, 02:20

... rates were 17.0 for En- glish, 18.7 for Spanish, and 22.5 for French. For English, we also created web mixture mod- els with KN smoothing. The error rates were 16.5, 15.9 and 15.7 for the 20 MB, ... results for the different LMs are given in Table 2. The results are consistent in the sense that the web mixture models outperform the in-domain models, and augmentation helps more with larger models. ... contain the acoustic models, language model and lexicon, but the LM makes up for most of the size. The availability of data varies for the different languages, and therefore the FST sizes are...

Ngày tải lên: 22/02/2014, 02:20

Ngày tải lên: 06/03/2014, 21:20

Ngày tải lên: 07/03/2014, 18:20