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93results about How to "Broad representation" patented technology

Method for full-automatic sample selection oriented to classification of remote-sensing images

The invention belongs to the technical field of computer-based remote-sensing image information processing and provides a method for full-automatic sample selection oriented to the supervised classification processes of remote-sensing images. The decision tree method is mainly applied to the method of the invention to achieve the integration of geosciences and expert knowledge and hereby carry out the automatic sample selection. The method comprises the following steps: firstly, establishing a standard decision tree according to various indexes, spectra and experiential knowledge; then, automatically pruning and forming a classification decision tree targeted on the current image; and further selecting a sample automatically by using the classification decision tree and introducing membership degree targeted on various requirements for classifiers or specific classification tasks at the same time to automatically adjust the distribution of samples to be selected. Accordingly, the method of the invention can improve the procedure of automatic classification and guarantee the accuracy of sample selection, thus achieving the good effect of classification in cooperation with supervised classification.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI

Method for controlling distributed average tracking of linear differential inclusion multi-agent systems

The invention relates to a method for controlling distributed average tracking of linear differential inclusion multi-agent systems, relating to multi-agent systems. The method comprises the following steps of: constructing a network structure topological graph of multiple agents to obtain an adjacent matrix, an associated matrix and a Laplacian matrix of the graph; setting an initial state and an initial reference signal of each node; constructing a linear differential inclusion system, and setting a system matrix to obtain a system parameter; setting a communication manner, such that each node is only communicated with a neighbour node, operating a distributed average tracking algorithm, and adjusting the state of each node; and designing a control law according to feedback information and the system parameter, adjusting the node state to achieve consistency, and tracking an average value of the reference signal. Requirements on the network structure are low; only when a network is connected, all node states tend to be uniform; furthermore, the average value of the reference signal is tracked; in the whole calculation process, each node only uses information of the neighbour node; the calculation amount is low; and the operation efficiency of the algorithm is increased.
Owner:XIAMEN UNIV

Method for detecting seepage performance of rock with filled connected fracture

The invention relates to a method for detecting the seepage performance of rock with filled connected fracture. The method includes steps of 1, taking samples from construction sites, preparing a plurality of standard test specimens, designing seepage orthogonal test schemes for the filled fracture and preparing study test specimens; 2, implementing the orthogonal test schemes, processing orthogonal test data by the aid of seepage coefficients which are used as detection indexes and finding factors with significant influence on seepage of the filled fracture; 3, designing multi-factor and multi-level comprehensive tests for the significant factors and measuring seepage coefficients in each test; 4, acquiring relations between each single factor and the seepage coefficients and relational functions of multi-factor coupling effects and the seepage coefficients by means of regression according to comprehensive test data. The method has the advantages that the method is scientific and rigorous, the various factors with influence on the seepage performance of the rock with the filled connected fracture can be comprehensively studied, and the method has a guiding significance on managing seepage during underground engineering and designing and implementing supports in seepage environments.
Owner:SHANDONG UNIV +1

Method for induction and diploidization of different-germplasm haploid of corn in northwest Guizhou

The invention relates to a method for induction and diploidization of different-germplasm haploids of corn in northwest Guizhou. The method comprises the following steps: respectively hybridizing an Agriculture university high-induction No.1 as a male parent with different systems so as to obtain haploid seeds of different systems, respectively multiplying by using a seed seeking method, a root seeking method and a bud seeking method, treating for different times at different temperatures, counting the diploidization success rates of different systems in different treatments so as to obtain an optimal multiplying method appropriate to main excellent corn systems in northwest Guizhou, performing seeding experiment, recording successful diploidization planting in field, analyzing different-germplasm inductivity and diploidization, wherein the percentage of the number of haploid seeds to the total number of the seeds is just the different-germplasm inductivity, performing field investigation to obtain the percentage of the number of diploid plants to the number of the haploid seeds, that is, the diploidization success rate, and establishing a corresponding DH system. By adopting the method, a haploid breeding technique system for the characteristic of the corn in northwest Guizhou is established, fine genes are combined together, and theoretic reference is provided for breeding of novel high-production and high-resistance varieties.
Owner:毕节市农业科学研究所
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