clustering algorithms iii schemes based on function optimization

... same person This step is only applied to entities of PERSON category The identification of NE mentions, as well as cognate NE, is based on the use of the Levenshtein edit-distance function (LD) ... transform one string into another Transformations are the one-step operations of insertion, deletion and substitution The result is an integer value that is normalized by the length of the longest ... Feature Translation In this approach we emphasize the feature selection based on NEs identification and the grammatical category of the words The selection of features we applied is based on previous...

Ngày tải lên: 31/03/2014, 01:20

... consumption of MHR schemes to the maximum energy consumption of the lowest ETX scheme longer network lifetime than the link-quality -based scheme for any network conditions in the next section ... effect of these schemes on energy consumption and network lifetime by incorporating a link quality metric and the communication load distribution based on the empirical data in Section as well as ... trade-off among various localized tree construction schemes with different network parameters in the following section Analysis of Localized Tree Construction Schemes In the last section, we examined...

Ngày tải lên: 21/06/2014, 17:20

... delay In this section, we first find this efficient constraint based on the overall response analyses in the previous section Then we develop a new equalization algorithm based on the CMOV method ... that (41) has only one set of solutions θ and T(h ) Equation (41) is a set of linear equations with M +q + p(q +1) unknowns and M p equations when every component of γ is nonzero Considering T(h) ... conditions, we can have one and only one solution, that is, h = h So h is the only solution under our assumptions For colored input, if γ does not meet either of the above two conditions, the delay d...

Ngày tải lên: 21/06/2014, 22:20

... 425.2 nm by transmission electron microscope (TEM) and UV–Vis absorption spectrum, respectively In the second step, the silver colloidal TFH solution with a concentration of 6.34 10-4 M was obtain ... (2008) 3:82–86 research and application, and it is believed that assembling synthesis based on functional molecules represents a novel route to prepare functional inorganic hollow sphere, which ... transitions of Eu (III) ion, by excitation at 342.0 nm However, the emission strength of silver hollow sphere solution is slightly lower than that of pure Eu(TTA)3 Á 2H2O complexes solution These...

Ngày tải lên: 21/06/2014, 22:20

... has operations, operation 11 and operation 12 Web Service has operations, operation 21, operation 22 and operation 23 We match operation 11 to operation 21, operation 22 and operation 23 and pick ... description, operations along with parameters that these operations take Dong et al [10] built a web search engine called Woogle based on agglomerative clustering of WSDL descriptions, operations ... six measures are based on the information content of the lease common subsumer (LCS) of concepts Information content is a measure of the specificity of a concept, and the LCS of concepts A and B...

Ngày tải lên: 30/10/2014, 20:04

... 5.3 Simulation Results 65 5.3.1 Asynchronous Channel 65 5.3.2 Rayleigh Fading Channel 69 5.4 Concluding Remarks CHAPTER CONCLUSIONS AND FUTURE WORK 71 72 6.1 Conclusions and Contributions 72 6.2 ... information that is normally provided to the conventional detector and performs better than the conventional one Another one is an adaptive decision feedback PIC (ADFPIC), which applies a decision ... be discussed in next section 31 Chapter Overview of Multiuser Detection Schemes 3.4 PIC Scheme Based on the Linear Detector Based on the discussion of multiuser detection, subtractive interference...

Ngày tải lên: 28/11/2015, 13:26

... consider the second one This formulation of PCM [7] is based on a modification to the cost function of the HCM: the objective function contains two terms, the first one is the objective function ... to clustering based on the minimization of a Free Energy which has been demonstrated [9] equivalent to the FCM functional The main difference with the FCM concerns the updating of fuzziness control ... approach to hierarchical cluster based on the minimization of the objective function depending on the temperature Starting from a “high enough” value, the cost function is deterministically optimized...

Ngày tải lên: 16/01/2014, 16:33

... P K1 measure is based on (Mojena, 1977), which finds clustering solutions for all values of k from N , and then determines the mean and standard deviation of the criterion function Then, a score ... configurations of our clustering approach, in order to determine how consistent the selected value of k is in the face of changing feature sets and context representations The four configurations ... k by subtracting the mean from the criterion function, and dividing by the standard deviation We adapt this technique by using the H2 criterion function, and limit k from deltaK: PK1 vs k r r...

Ngày tải lên: 22/02/2014, 02:20

... PU CONSTRUCTION OF THE LINE s h o w s an action (CONSTRUCTION) which can be applied to the object LINE This definition of the context is original compared to the classical context definitions ... candidate term containing the current NP in head position For example, the candidate terms (NATIONAL NETWORK, REGIONAL NETWORK, DISPATCHING NETWORK) give the context (NATIONAL, REGIONAL, DISPATCHING)for ... to constitute synonym sets : the synonym terms are grouped, one of them is chosen as a concept label, and the others are kept as the values of a generic attribute labels of the considered concept...

Ngày tải lên: 22/02/2014, 03:20

... to which n and v belong In this paper, we refer to this model as the 'hard clustering model,' since it is based on a type of clustering in which each word can belong to only one class Fig shows ... correct disambiguation 'answers.' We performed clustering on the nouns on the left position and the nouns on the right position in the training data by using both our method ('2DClustering') and ... Figure 4: Compound noun disambiguation results We next conducted structural disambiguation on the test data, using the probabilities estimated based on 2D -Clustering and Brown We also tested...

Ngày tải lên: 17/03/2014, 07:20

... summarization approach based on event term clustering Section presents experiments and evaluations Finally, Section concludes the paper 2.1 Summarization Based on Event Term Clustering Event Term Graph it ... 0.12011 Table Evaluations of Clustering- based Summarization The experiments show that both assumptions are reasonable It is encouraging to find that our event term clustering- based approaches could ... algorithm on the event term graph connected by semantic relations derived from external linguistic resource The experiment results based on our two assumptions are encouraging Event term clustering- based...

Ngày tải lên: 23/03/2014, 18:20

... method 98.33% VI CONCLUSIONS The performance of orthogonal pseudo Zernike moment invariant (PZMI) and radial basis function neural network (RBFN) in the facial expression classification system was ... Company Hong-Bo Deng, Lian-Wen Jin, Li-Xin Zhen, Jian-Cheng Huang, “A New Facial Expression Recognition Method Based on Local Gabor Filter Bank and PCA plus LDA,”International Journal of Information ... number of nodes is equal to the dimension of input vector In the hidden layer, the input vector is transformed by radial basis function as activation function: where || || denotes a norm- (usually...

Ngày tải lên: 28/04/2014, 10:17

... doping GaAs system The reason is the same as that given earlier Conclusions In conclusion, this investigation shows that the conductivity behavior for heavy holes as a function of N2D or of the Fermi ... has been adopted [19] Results and discussion Figure 2a shows the conductivity for heavy holes (s as a function of the two-dimensional acceptor concentration, N2D, for unstrained GaAs/Al0.3Ga0.7As ... where there is no contribution from the first miniband or where the second band is partially occupied, but its contribution to the conductivity is very small In the group -III arsenides, the minigap...

Ngày tải lên: 21/06/2014, 05:20

... distribution function, ” IEEE Transactions on Signal Processing, vol 47, no 7, pp 2077–2080, 1999 [4] Y Sun and P Willett, “Hough transform for long chirp detection,” IEEE Transactions on Aerospace ... detection and parameters estimation of multicomponent LFM signal can be realized by the CPF The principle of detection and parameters estimation of single LFM signal is presented For multicomponent ... implementation of the Frft still requires 2D maximizations εβ = εα ≈ + MSE(b) Remark The efficiencies of the fractional Fourier transform (Frft) is [6] −20 −30 −40 SIMULATIONS In this section, the Monte...

Ngày tải lên: 21/06/2014, 22:20

... swarm optimization (PSO) algorithm -based PTS OFDM system is examined in Section The results of simulation are discussed in Section and some conclusions for the proposed scheme are drawn in Section ... monopole antenna using a particle swarm optimization approach,” IEEE Transactions on Antennas and Propagation, vol 53, no 10, pp 1–7, 2005 [24] J Robinson and Y Rahmat-Samii, “Particle swarm optimization ... swarm of bees to search the location with the most flowers in a field, the optimization procedure of PSO is based on a population of particles which fly in the solution space with velocity dynamically...

Ngày tải lên: 21/06/2014, 23:20

... “Probabilistic framework for gene expression clustering validation based on gene ontology and graph theory,” in Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing ... expression magnitude can be far apart Therefore, expression shape is a more important indication of similar gene functions than expression magnitude The same clustering methods mentioned above ... statistic, one using the clusters of transformed data and one using the corresponding clusters of raw data We used the built-in Silhouette function contained within MATLAB for our calculations To...

Ngày tải lên: 22/06/2014, 00:20

... algorithms use a nonconventional full encryption methodology, where the encryption is performed on the entire bitstream using a nonconventional encryption algorithm Most of these algorithms are ... of encryption algorithms for spatial-only video coding based on permutation transformations that have a correlationpreserving property Using these algorithms, one can perform encryption prior to ... extension; (vii) blk16+hh—block -based extension operating on 16 × 16 blocks with histogram-hiding extension; (viii) blk8+hh—block -based extension operating on × blocks with histogram-hiding extension;...

Ngày tải lên: 22/06/2014, 19:20

... demosaicking as an optimization problem in which a cost function is minimized The cost function is based on the observation that the chrominance varies slowly in an object region Unlike the one used by ... and horizontal colors is used to detect an edgy region (directional area), a small variation in colors can lead to a wrong decision, that is, nondirectional regions are likely to be considered ... components of the chrominance in the edgy regions To this, we propose to consider only pixel locations which belong to an edgy region (RE ) and minimize the following cost function which is based...

Ngày tải lên: 22/06/2014, 19:20

... antenna scenarios Section demonstrates the performance of our algorithms through a simulation study Section gives the conclusion on the results The following symbols and notations listed in Table ... value pmax In addition to RF propagation, energy may be also expended for transmission processing (on modulation, encoding, etc.) and reception processing (on demodulation, decoding, etc.) For ... optimized for single session operation are used for the multiple session operations The main contribution of this paper is that we present a group of distributed multicast algorithms for the network...

Ngày tải lên: 22/06/2014, 22:20

... construction algorithm and presents authentication based on multilayer clustering for ad hoc networks (AMCAN) An important contribution of our work is the evaluation of the CCH construction and ... authentication and nonrepudiation It consists of a preliminary certification process, a mandatory end-toend authentication stage, and an optional second stage that provides secure shortest paths The optional ... cluster -based networks are used A large communication area is divided into several section areas (clusters) Each section CH can participate in only one section and manages the communication units...

Ngày tải lên: 23/06/2014, 00:20