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2013 a robust multiple watermarking scheme based on the DWT

2013  a robust multiple watermarking scheme based on the DWT x

2013 a robust multiple watermarking scheme based on the DWT x

... ad ditif : vers la se lection d’un es pace d’insertion optimal,” Coresa03, 2003. [9] S. Rastegar, F. Namazi, K. Yaghmaie and A. Aliabadian, “Hybrid watermarking algorithm based on singular value ... also that the HH sub-band robustness is enhanced with the proposed scheme. IV. CONCLUSION In this paper, we have made a contribution to a multiple non-blind watermarking scheme based on the DWT. ... decomposition, the two dimen sional DWT is applied to the LL sub-band. The detail images are called the vertical (LH), the horizontal (HL) and the diagon al (HH) sub- bands, they represent the mid and...
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2013  a robust multiple watermarking scheme based on the DWT

2013 a robust multiple watermarking scheme based on the DWT

... 61 A Robust Multiple Watermarking Scheme Based on the DWT Ouazzane Hana, Mahersia Hela, Hamrouni Kamel Université de Tunis El Manar, Ecole Nationale d'Ingénieurs de Tunis LR-SITI: Signal ... check the watermark presence in the attacked image. For objective examination, they calculate the similarity ratio (SR) between each extracted watermark and the original one and admit that the ... watermark in a cover image in such a way that the watermarked image remains accessible to everyone and the embedded watermark can be decoded after the watermarked image have undergone several...
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Báo cáo khoa học:

Báo cáo khoa học: "a Chat-oriented Dialogue System based on the Vector Space Model" ppt

... at each dialogue turn. On the other hand, context elements contain all the additional information (explanations and descriptions) appearing in the scripts. 39 The extracted dialogues are ... basic elements are extracted from the scripts: speakers, utterances and context. The speaker and utterance elements contain information about the characters who speak and what they said at ... Sys-tem), a chat-oriented dialogue system based on the vector space model framework. The system belongs to the class of example- based dialogue systems and builds its chat capabilities on a dual...
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Báo cáo

Báo cáo " A program anomaly intrusion detection scheme based on fuzzy inference " potx

... fuzzy -based detection scheme: (a) Training stage and (b) Testing stage. • Training stage: a normal database, an HMM model and fuzzy sets are built from training data. - Normal database: The ... to each other [1-3]. This leads to an increase in false alarms and a decrease in the detection rate. This paper proposes a fuzzy- based solution to reduce false alarms for program anomaly ... positive alarms than the normal database scheme [4], as shown in Table 1. For example, the false positive rate of the normal database scheme is 0.174%, as opposed to 0.085% of the proposed scheme, ...
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Reliability analysis of a power system based on the multi state system theory

Reliability analysis of a power system based on the multi state system theory

... system is reliable, though the capacity of a battery is lower than 5700 mAh. Suppose the capacity of the first branch is 5600 mAh and the capacity of other branches are all above 5800 mAh, the system ... studied. The relationship between the performance of the system and the performance of the batteries is analyzed. The results obtained by the traditional system reliability theory are compared with the ... that the results obtained by the traditional syste m reliability theory are always conservative. For example, when the required capacity is 23.4 Ah, the reliability of the system obtained by the...
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Tài liệu University Oars Being a Critical Enquiry Into the After Health of the Men Who Rowed in the Oxford and Cambridge Boat-Race, from the Year 1829 to 1869, Based on the Personal Experience of the Rowers Themselves pdf

Tài liệu University Oars Being a Critical Enquiry Into the After Health of the Men Who Rowed in the Oxford and Cambridge Boat-Race, from the Year 1829 to 1869, Based on the Personal Experience of the Rowers Themselves pdf

... calculated to awake the commiseration and the pity of his comrades, who affectionately style the damaged athlete, " the man with the heart." Now ithas always appeared to me that many of these ... serve as valuable nationalgymnasia; colleges for the training of the mind, andschools also for the development of physical vigour.This adaptation of one and the same Institution ... 7UNIVERSITY OARS. the casualties which have been ascribed to the Boat-Race, I have shewn that the disease popularly knownas decline or consumption has, in the opinion of many,exacted a heavy tribute...
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... that the features are conditionally in-dependent of each other given the index variable, the operator and previous instance. Each feature onlydepends on the operator and the corresponding fea-ture ... resolution and parsing.3 Observation Model The observation model that generates an observedstate is defined as Equation 5. To expand that equa-tion in detail, the observation state, the word, ... HMM, the hidden state correspondingto each observation state only involves one variable.An FHMM contains more than one hidden variablein the hidden state. These hidden substates are usu-ally...
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One dimensional organic nanostructures a novel approach based on the selective adsorption of organic molecules on silicon nanowires

One dimensional organic nanostructures a novel approach based on the selective adsorption of organic molecules on silicon nanowires

... between the molecules and the SiNWs. In addi-tion, the THAP adsorbed on the clean Ag areas are not orderedaccording to the same structure as that observed upon adsorption on a clean Ag(110) surface ... that the SiNWs present a metallic character. This supports the observation made by Leandri et al. based on a detailed analysis of the Si2p core levels and valence band of the surface [1].To address ... Surface Science LettersOne-dimensional organic nanostructures: A novel approach based on the selective adsorption of organic molecules on silicon nanowiresEric Salomon*, Antoine KahnDepartment...
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Báo cáo khoa học:

Báo cáo khoa học: "Introduction of a new paraphrase generation tool based on Monte-Carlo sampling" potx

... particular,it does not put constraint on the scoring function.We propose a variation of the UCT algorithm forparaphrase generation named MCPG for Monte-Carlo based Paraphrase Generation. The ... future research tracks to improve para-phrase generation tools.2 Statistical paraphrase generation usingtransformation rules The paraphrase generation problem can be seen asan exploration problem. ... that is based on transformation rule applicationin section 2. In section 3 we propose a paraphrasegeneration method for this paradigm based on analgorithm used in two-player games. Section...
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Báo cáo khoa học:

Báo cáo khoa học: "A Hierarchical Bayesian Language Model based on Pitman-Yor Processes" docx

... firstdetermined the parameters by conjugate gradientdescent in the cross-entropy on the validation set.At the optimal values, we folded the validationset into the training set to obtain the final n-gramprobability ... ofnatural languages. Bayesian probabilistic mod-els also have additional advantages—it is rela-tively straightforward to improve these models byincorporating additional knowledge sources andto ... gives us an alternative representation of the hierarchical Pitman-Yor language model thatis amenable to efficient inference using Markovchain Monte Carlo sampling and easy computa-tion of the predictive...
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