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Sun Yi, Ruoxuan Huang, Xinchun Yi, Zhou Wen et autres
cn (code pays fourni par la source)
The distribution of data has a significant impact on the results of classification. When the distribution of one class is insignificant compared to the distribution of another class, data imbalance occurs. This will result in rising outlier values and noise. Therefore, the …
cn (code pays fourni par la source)
Sun Yi, Xiaojun Jing, Songlin Sun, Hai Huang
This paper discusses squint synthetic aperture radar (SAR) imaging in the near space platform and proposes an improved Secondary Range Compression (SRC) Algorithm, Subaperture Secondary Range Compression (SSRC) Algorithm. The key step is to use the subaperture approach in the SRC algorithm. …
cn (code pays fourni par la source)
Sun Haibin, Sun Yi, Sun Songlin
In general, the conventional Range Alignment methods can provide the satisfactory alignment result in Inverse Synthetic Aperture Radar (ISAR) image. However, because of the airflow disturbance or echo vibration, the target altitude may change and some echoes that deteriorate the precision of …
cn (code pays fourni par la source)
In many fields the traditional ontology cannot represent and handle the inaccurate and uncertain information existing in the real world. The usual solution is introducing fuzzy logic into ontology to deal with such fuzzy information [1]. Currently, a large number of studies …
cn (code pays fourni par la source)
In ontology, domain knowledge is formally expressed by concepts that both human and machine can understand. These concepts include entity, attribute, relation and truth, etc. It is used as a standard knowledge representation for the Semantic Web. Nowadays, most of ontology is …
cn (code pays fourni par la source)
In traditional Chinese medicine (TCM) field, medical cases are viewed as semi-structured text, which is between free text and structured text. They lack of grammar, have no strict formats, and even don't have complete sentences. Most of them consist of phrases having …
cn (code pays fourni par la source)
Innovations in computational biology such as high throughput genomic technologies have resulted in numerous large databases containing genomic information which are being annotated with terms from the gene ontology to ensure consistency of the referenced biological concepts. These annotations are being used …
us (code pays fourni par la source)
by Yi Sun Today, with the increasing development of computational biology, various large databases are built to describe genomic information and the experimental data.To guarantee the consistency of biological concepts used in different databases, the Gene Ontology (GO) has been developed by …
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Weighting is a key problem in intelligence systems. In this paper, a new method of weighting attribute is proposed after analyzing some other popular weighting methods. This new method defines the attribute weight based on the similarity degree of trend association between …
cn (code pays fourni par la source)
Sun Yi, Sheng Zhou, Weiling Wu
Firstly, the paper describes two channel estimation methods adopted in the downlink and uplink channels of WCDMA systems: pilot channel and pilot symbol group. Then, the simulation models of the RAKE receiver's phase estimation are established and the multipath fading channel model …
cn (code pays fourni par la source)
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