Evaluation and selectivity estimation of XML queries

... methods and the best possible execution plans for complex XML queries respectively In this thesis, we examine the problem of query evaluation and selectivity estimations of XML queries, and we ... amount of XML data and the number of XML applications, there is a great demand for efficient XML data management systems for managing complex queries over large volu...

Ngày tải lên: 12/09/2015, 10:58

... COD and Alkalinity A composite wastewater sample was subjected to treatability study by means of coagulation-flocculation with alum and chemical oxidation with bleaching powder [Ca(OCl)2] separately ... discharge standard for inland water body Materials and methods 2.1 Manufacturing process of the textile dyeing unit The textile dyeing unit under the present study...

Ngày tải lên: 05/09/2013, 17:03

... likelihood P(y) and conditional likelihood P(y|x) of the ATIS1 training trees, and the marginal likelihood P(x) of the ATIS1 training strings, as well as the labelled precision and recall of the ATIS2 ... tiny training and test corpus In order to avoid the computational difficulty of conditional estimation, we compared closely related (but not identical) HMM tagging and...

Ngày tải lên: 08/03/2014, 05:20

... evaluate the test performance for real-time reverse-transcriptase (RT2-) PCR, EM, and EIA for norovirus using both LCM and CRS; and (ii) to evaluate the implications of these characteristics for outbreak ... a traditional "gold standard" for the evaluation of test characteristics in the identification of NVG outbreaks does not preclude rational eval...

Ngày tải lên: 18/06/2014, 15:20

... rank K, and hence, R is of rank K and can be used to estimate the DOA and the polarization parameters of the coherent sources In realistic cases where only a finite number of snapshots are available, ... estimate the DOA and polarization of coherent sources without eigen-decomposition into signal/noise subspaces Compared with the existing estimate algorithms,...

Ngày tải lên: 21/06/2014, 05:20

... 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 LFM signal, the CLEAN ... detection of the “autoterms.” Remark The phase information of the LFM signal is neglected in this paper, because in most situations, the char...

Ngày tải lên: 21/06/2014, 22:20

... sectorization and BS antenna radiation pattern has also been studied Cells sectorization and use of narrow beam BS antennas increase Konstantinos B Baltzis significantly the capacity of a cellular ... Mediterranean Microwave Symposium, pp 1–5, Budapest, Hungary, July 2007 [20] I A Aldmour, K Al-Begain, and A I Zreikat, “Uplink capacity/ coverage analysis of WCDMA with...

Ngày tải lên: 21/06/2014, 23:20

... vehicle CAN bus As the first tests performed by the industrial car part supplier FAURECIA demonstrated that a static tuning is ineffective against road image variability, an automatic and adaptive tuning ... illustrate our approach for IPC tuning on a road image processing chain This application will also help us to introduce practical details of the methodology Natura...

Ngày tải lên: 22/06/2014, 23:20

... distribution and linkage between a major gene and polygenes, on the power of detecting a major gene and on parameter estimation Behavior of the mixed model of segregation analysis (Morton and MacLean, ... 0.5) Parameter estimation Mean estimates of parameters, with their empirical standard deviations based on 50 replicates, and true values are given in tabl...

Ngày tải lên: 09/08/2014, 18:22

... count estimation In this thesis we study the problem of inferring topological features of biological networks from their noisy observed subnetworks, which may contain spurious and missing links ... of the protein-protein interaction and gene regulatory networks uncovered in our study are consistent with our biological intuition about the complexity of living or...

Ngày tải lên: 10/09/2015, 09:06

... distance-independent indices for predicting the diameter growth of boreal trees It performed similar to the competitor basal area index for predicting aspen growth, but had consistently higher R2 and ... of competition indices for predicting diameter growth in mixed- species forests, we found that the flexible, distance-dependent crowding index was superio...

Ngày tải lên: 07/08/2014, 16:21

... Beer and others to the outskirts of Tokyo Another major factor was the reduction of water use in the factory through the utilization of WWR and water conservation efforts mainly due to their cost ... rice and the washings would later be used for watering plants to utilize the remaining nutrients Likewise, making the most of rainwater by RWH should be t...

Ngày tải lên: 05/09/2013, 10:17

... Limited, 1980 [17] Joshi M., Sawhney R.L., Buddhi D Estimation of luminous efficacy of daylight and exterior illuminance for composite climate of Indore city in Mid Western India Renewable Energy, ... diffuse illuminance for horizontal and four vertical surfaces in January Average global and diffuse illuminance For determination of maximum illuminance leve...

Ngày tải lên: 05/09/2013, 16:10

... VIETNAM NATIONAL UNIVERSITY - HANOI COLLEGE OF FOREIGN LANGUAGES POST-GRADUATE DEPARTMENT DƯƠNG THỊ HỒNG AN AN EVALUATION AND APPLICATION OF SOME MULTIMEDIA PRESENTATION SOFTWARE IN DESIGNING ENGLISH ... ENGLISH LECTURES AT FIT - TNU ( Đánh giá ứng dụng số phần mềm trình chiếu đa phương tiện thiết kế giảng môn tiếng Anh Khoa Công nghệ thông tin - Đại học Th...

Ngày tải lên: 07/09/2013, 13:08

... related sources of risk when estimating the required rate of return 3.3 The level of the required rate of return Table investigates the required rate of return or weighted average cost of capital ... 17 and 22 INVESTMENT EVALUATION METHODS AND TABLE The investment projects’ required rate of return The respondents were asked to provide a method...

Ngày tải lên: 17/12/2013, 15:08