Ngày tải lên: 27/06/2014, 17:20
... measured with an infrared gas analysis system (Uras 3 G; Hartmann & Braun AG, Frank- furt am Main, Germany). A whole-rosette cuvette design was used as described in [31]. Gas exchange was ... acclimation in A. thaliana FEBS Journal 278 (2011) 506518 ê 2010 The Authors Journal compilation ê 2010 FEBS 509 A systems biology approach for the analysis of carbohydrate dynamics during acclimation ... Whereas many tropical and subtropical species have only limited capacities to cope with low temperature, plants from temperate climates, such as Arabidopsis thaliana, grow at low temperature and can...
Ngày tải lên: 14/02/2014, 22:20
Báo cáo khoa học: "Analysis and Synthesis of the Distribution of Consonants over Languages: A Complex Network Approach" pptx
... preferential attachment can be interpreted as the tendency of a language to choose a consonant that has been already chosen by a large number of other languages. We posit that it is this preferential ... preferential at- tachment, 3 Mean error is defined as the average difference between the ordinate pairs where the abscissas are equal. ã Provide a simplied mathematical model to support our analytical ... 727–730. L. A. Adamic and B. A. Huberman. 2000. The na- ture of markets in the World Wide Web. Quarterly Journal of Electronic Commerce 1, 512. R. Albert and A L. Barab ´ asi. 2002. Statistical me- chanics...
Ngày tải lên: 08/03/2014, 02:21
Báo cáo khoa học: "A GENERATIVE GRAMMAR APPROACH FOR THE MORPHOLOGIC AND MORPHOSYNTACTIC ANALYSIS OF ITALIAN" ppt
... The form is passive, as "chiamare" (to call) is a transitive verb (the auxiliary verb for the active form is to have). In 36 this case morphosyntactic analysis has solved an ambiguity: ... dv2. andarâ v.intran.simple I The other sets of data are contained in the Prolog workspace and are structured as tables of a relational data base. The set of the classes of endings is a table ... successfully applied the morphologic categories of the verbs are changed and the attribute 'active'/'passive' can bc specified correctly. For example, after the morphosyntactic analysis. ...
Ngày tải lên: 24/03/2014, 05:21
A logic-programming approach to network security analysis potx
... trace Interaction rules Analysis database Logic Engine Figure 2.1: Analysis framework 2.2 Analysis framework The MulVAL core analysis fra mework is shown in Figure 2.1. An analysis database is a collection ... constants In Datalog, a term is either a constant or a variable. Datalog is an untyped language, so a predicate can be applied to arbitrary terms. However, to make a Datalog sentence meaningful, ... vulnerability that matches the pattern. An underscore-led variable such as AttackSrc is an anonymous variable in Datalog — one that appears only once in a clause, and thus whose value do es not matter....
Ngày tải lên: 05/03/2014, 21:20
Báo cáo khoa học: "A Bio-inspired Approach for Multi-Word Expression Extraction" doc
... natural language are also observed. For example, we improve MWE min- ing result by EBP detection. Comparisons with variant n-gram approaches, which are the leading approaches, are performed for ... extraction, LCS approach is applied with great efficiency and per- formance guarantee. Experimental results show that LCS-based approach achieves better results than n-gram. 1 Introduction Language ... extraction of MWE plays an important role in several areas, such as machine translation (Pas- cale,1997), information extraction (Kalliopi,2000) etc. On the other hand, there is also a need for...
Ngày tải lên: 08/03/2014, 02:21
Which interest rate scenario is the worst one for a bank? Evidence from a tracking bank approach for German savings and cooperative banks potx
... cross-checking Volker Wieland 21 2007 Corporate marginal tax rate, tax loss carryforwards and investment functions – empirical analysis using a large German panel data set Fred Ramb x t,i,j j ... marketability of bank assets and managerial Falko Fecht rents: implications for financial stability Wolf Wagner 31 07 2008 Which interest rate scenario is the worst one for a bank? ... visiting researchers have access to a wide range of data in the Bundesbank. They include micro data on firms and banks not available in the public. Visitors should prepare a research project...
Ngày tải lên: 22/03/2014, 23:20
Báo cáo khoa học: "A Hybrid Relational Approach for WSD – First Results" ppt
... give-cake big-cake … Figure 1. Attribute-value vector for syntactic relations Given that some types of information are not avail- able for certain instances, many attributes will have null values. ... a few are designed for specific applica- tions, such as MT. Existing multilingual approaches can be classified as (a) knowledge-based ap- proaches, which make use of linguistic knowledge manually ... only classified a few ex- amples (form 1 to 6). In Table 2 we show the accuracy of the theory learned for each verb, as well as accuracy achieved by two propositional machine learning algorithms...
Ngày tải lên: 23/03/2014, 18:20
Making sense of a complex world Accounting for royalty arrangements – issues for media companies pptx
... payable – Advance payments 20 Accounting for royalties payable – Recognition and valuation of assets and liabilities 23 Accounting for royalties payable – Stepped royalties 24 Accounting for royalties ... that are currently streaming a webcast. For this reason the royalties payable for webcasting are typically calculated per listener hour. However, there are a wide variety of royalty arrangements ... (IPR) Advance payment may be received from licensee Is the obligation a financial / monetary liability? Advance payment may be made to licensor Is the asset a financial/monetary asset? Is the value...
Ngày tải lên: 29/03/2014, 20:20
báo cáo hóa học: " A utility-based approach for secondary spectrum sharing" pot
... we focus on the case in which there is at least one channel available for each node. We shall also assume that each node can transmit on one channel at a time. For each node i ẻ V and channel c ∈ C we ... transmitters and receivers. This results in the operational constraint that two such sessions cannot actively use a narrowband channel at the same instant. Dashouk and Alanyali EURASIP Journal ... Leith-Clifford’s performance deteriorates for decreasing channel availability compared with the gradient ascent-based methods which again display close performance b etween each other. Gibbs algorithm underperforms...
Ngày tải lên: 21/06/2014, 02:20
Báo cáo hóa học: " Research Article A Machine Learning Approach for Locating Acoustic Emission" pdf
... performance. We note that the SVMs trained with 256- dimensional raw AE data had quite poor performance, where the AUC was 0.39 and 0.31 for datasets SR1 and SR2. We also examined the performance ... crucial patterns from the total AE data, as well as particular P-wave arrivals, may provide clues for distinguishing between real events and extraneous signals, thus improving the spatial accuracy ... that the damage can be inferred through analysis of the signals obtained from inspection. Acoustic emission (AE) events can serve as a source of information for locating the damage, particularly...
Ngày tải lên: 21/06/2014, 08:20
Báo cáo hóa học: "Research Article A Rules-Based Approach for Configuring Chains of Classifiers in Real-Time Stream Mining Systems Brian Foo and Mihaela van der Schaar" pot
... time intervals, a larger state space can even EURASIP Journal on Advances in Signal Processing 3 stream dynamics. Stream dynamics a ect the APP of positive data arriving at each classifier, which ... Consequently, every parameter in (5) can be easily estimated based on some locally observable data. By exchanging these locally obtained parameters and configurations across all classifiers, each classifier can then ... costs. 3. Background on Binary Classifier Chains 3.1. Characterizing Binary Classifiers and Classifier Chains. A binary classifier partitions input data objects into two classes, a “yes” class H and a “no”...
Ngày tải lên: 21/06/2014, 19:20
Báo cáo hóa học: " Research Article A Fault Diagnosis Approach for Gears Based on IMF AR Model and SVM" pot
... such way that the margin is maximized, namely, the distance between the boundary and the nearest data point in each class is maximal. The nearest data points are used to define the margin and are ... artificially created defects. In this paper, targeting the nonstationary characteristics of gear vibration signal and disadvantage of AR model, a fault feature extraction method in which IMF and ... number and have better generalization than ANNs and guarantee that the extremum and global optimal solution are exactly the same. Meantime, SVMs can solve the learning problem of a smaller number...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: " Research Article A Cross-Layer Approach for Maximizing Visual Entropy Using Closed-Loop Downlink MIMO" docx
... multiple antennas can be classified and ordered based on the metric of the channel gain. To perform this antenna selection at any instantaneous channel realization, we mea- sure the channel for each antenna ... antenna using a channel estimation. More specifically, the antenna with the best channel gain is labeled as the 4th antenna, and the antenna with the second best antenna as the 3rd antenna, and ... quality criterion exists as an alternative. Therefore, the current technical limitation lies in the lack of quality criteria for evaluating the performance gain attained by the cross-layer approach. In...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: "Research Article A Geometrical-Based Model for Cochannel Interference Analysis and Capacity Estimation of CDMA Cellular Systems" pot
... Relative gain versus P (outage) for flat-top beamformers of various beamwidths. The case of an omni-directional antenna is also considered. flattop beamformers with beamwidths equal to 120, 65, and 10 ... in cellular communications is the circular-cell approximation. In this paper, an alternative analysis based on the hexagonal shape of the cells is presented. A geometrical-based stochastic model ... cells sectorization and BS antenna radiation pattern has also been studied. Cells sectorization and use of narrow beam BS antennas increase Hindawi Publishing Corporation EURASIP Journal on Wireless...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " Research Article A Statistical Multiresolution Approach for Face Recognition Using Structural Hidden Markov Models" pptx
... statistical measures to be calculated as a re- sult. DWT has also been used for feature extraction in PCA- based approaches [26, 27]. The Gabor wavelet in particular has been used extensively for ... is for this reason that the recognition rates for wavelet/HMM are rather low for this database, ranging from 35.8% when Haar was used to 42.9% for Gabor. The recognition rates increase dramati- cally ... t a l . 9 (a) (b) Figure 8: Samples of faces from (a) the AT&T Database of Faces [17] and (b) the Essex Faces95 database [35]. The images contain variation in pose, expression, scale, and...
Ngày tải lên: 22/06/2014, 06:20
A Balanced Scorecard Approach for Strategy- and Quality-driven pptx
Ngày tải lên: 07/08/2014, 02:20