Statistical models for digital watermarking

... PDF models for LR detection in transform domain watermarking Although our numerical experiments are done for DWT and DFT domains, these models are also applicable in other transform domains, for ... literature, many digital watermarking algorithms have been developed and improved Some are already being used in the multimedia industry 1.1 Digital Watermarking In a digital...

Ngày tải lên: 14/09/2015, 12:45

... partial parsers Unsupervised Prepositional Phrase Attachment The exact task of our algorithm will be to construct a classifier cl which maps an instance of an ambiguous prepositional phrase (v, n, ... before the attachment is resolved In the unsupervised case discussed here, the extraction heuristic only finds what it thinks are unambiguous cases of prepositional phrase attach...

Ngày tải lên: 17/03/2014, 07:20

... 3.3 Alpha Stable models HVS models used in DBS are commonly derived from empirical approximations to the CSF That is the case in the N¨ as¨anen and the mixed Gaussian models described before ... to spatial stimuli) were found to have the analytical form of the characteristic function of alpha stable random variables.4 Thus, stable models fit well empirical measurements and at...

Ngày tải lên: 14/11/2015, 08:03

... Annual Conference of the European Association for Machine Translation), pages 30–40, Budapest, Hungary, May Phrase-based models have been used for interactive CAT in this work We show how SMT ... Equation summarizes the following three mat4 Phrase-based models ters to be solved: First, an output language model The usual statistical translation models can be is needed to distin...

Ngày tải lên: 20/02/2014, 12:20

... References Yaser Al-Onaizan, Jan Curin, Michael Jahr, Kevin Knight, John Lafferty, Dan Melamed, David Purdy, Franz J Och, Noah A Smith, and David Yarowsky 1999 Statistical machine translation, final report, ... to adaptive statistical language modeling Computer, Speech and Language, 10:187–228 Christoph Tillmann and Hermann Ney 2000 Word re-ordering and dp-based search in statistical...

Ngày tải lên: 20/02/2014, 18:20

... statistical pattern recognition gram models and decision-tree models is to make process A parse tree for a sentence is constructed clear that the power of decision-tree models is not by starting with ... AS(hlh2hs)P(flh3) where ~'~)q(hlh2h3) = for all histories hlhshs The optimal values for the A~ functions can be estimated using the forward-backward algorithm (Baum, 1972) A...

Ngày tải lên: 20/02/2014, 22:20

... Koehn 2004 Pharaoh: a Beam Search Decoder for Phrase-Based Statistical Machine Translation Models In Proceedings of the 6th Conference of the Association for Machine Translation in the Americas, pages ... June Association for Computational Linguistics Dekai Wu 1996 A Polynomial-Time Algorithm for Statistical Machine Translation In Proc of the 34th Annual Conf of the Associ...

Ngày tải lên: 08/03/2014, 02:21

... of what constitutes a natural clumping depends on the formal language For example, suppose the English sentence were: I want to fly to Memphis please If the formal language for this sentence were: ... However, in NLU there is a fundamental asymmetry between the natural language and the unambiguous formal language Most notably, one formal language word may frequently correspo...

Ngày tải lên: 08/03/2014, 21:20

... We have presented a Bayesian decision framework that performs automatic story segmentation based on statistical modeling of one or more lexical chain features, including lexical chain starts, ... Modeling of Lexical Chain Features Chain starts and ends We follow (Chan et al 2007) to model the lexical chain starts and ends at a story boundary with a s...

Ngày tải lên: 23/03/2014, 17:20

... mathematics of statistical machine translation Computational Linguistics, 19(2):263–311 E Charniak, K Knight, and K Yamada 2003 Syntax-based language models for machine translation In Machine Translation ... 2004 A smorgasbord of features for statistical machine translation In NAACL, pages 161–168 Franz-Joseph Och 2005 The Google statistical machine translation system...

Ngày tải lên: 31/03/2014, 01:20

... 1997 Three Generative Lexicalized Models for Statistical Parsing 35th ACL, Madrid, pp 1623 Michael Collins 1999 Head-Driven Statistical Models for Natural Language Parsing Ph.D thesis, University ... overall performance, nor does it alleviate the problem for sentences with missing lexical entries for seen words compute in the same way as Collins (1999), p 185 was only do...

Ngày tải lên: 31/03/2014, 06:20

... dependency-based parsing models in speech recognition, for example (Stolcke 96) It is interesting to note that Models 1, or could be used as language models The probability for any sentence can be ... pages 272-277 Conclusions D Magermaa 1995 Statistical Decision-Tree Models for Parsing Proceedings o/ the 33rd Annual This paper has proposed a generative, lexicalised, probab...

Ngày tải lên: 31/03/2014, 21:20

Ngày tải lên: 03/06/2014, 02:10

... (see Section 2.4 for the actual thresholds) All in all S40 exhibits superior overall performance Filters Ranking for DWT-Domain Robust Digital Watermarking Table 2: Detection rankings (multiplicative ... repairing and texturizing polygon models for VR applications He expects to finish his D.Phil before the end of 2004 Filters Ranking for DWT-Domain Robust Digital Wa...

Ngày tải lên: 23/06/2014, 01:20