中国科学院机构知识库网格系统: 检索

SKT-IDS: Unknown attack detection method based on Sigmoid Kernel Transformation and encoder-decoder architecture 期刊论文 OAI收割
COMPUTERS & SECURITY, 2024, 卷号: 146, 页码: 15
作者: Zha, Chao; Wang, Zhiyu; Fan, Yifei; Zhang, Xingming; Bai, Bing

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收藏 | 浏览/下载：4/0 | 提交时间：2024/12/06

Intrusion detection Sigmoid Kernel Transformation Pre-trained encoder Encoder-decoder Cosine similarity

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收藏 | 浏览/下载：16/0 | 提交时间：2023/08/02

Frozen soil Heat equation Model test Similar transformation method Similarity criterion

Identification of Enantiomeric Byproducts During Microalgae-Mediated Transformation of Metoprolol by MS/MS Spectrum Based Networking 期刊论文 OAI收割
FRONTIERS IN MICROBIOLOGY, 2018, 卷号: 9, 页码: 2115
作者: Lv, Min; Lo, Ching; Hsu, Cheng-Chih; Wang, Yuwen; Chiang, Yin-Ru

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收藏 | 浏览/下载：70/0 | 提交时间：2020/07/08

metoprolol (MPL) microalgae enantioselective biodegradation transformation products biodegradation pathway MS/MS spectral similarity networking

收藏 | 浏览/下载：49/0 | 提交时间：2015/03/18

Feature selection Locality and similarity preserving Sparse reconstruction Transformation matrix Discriminating information

A line mapping based automatic registration algorithm of infrared and visible images 会议论文 OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者: Ai R(艾锐); Shi ZL(史泽林); Xu DJ(徐德江); Zhang CS(张程硕)

收藏 | 浏览/下载：36/0 | 提交时间：2013/12/26

There exist complex gray mapping relationships among infrared and visible images because of the different imaging mechanisms. The difficulty of infrared and visible image registration is to find a reasonable similarity definition. In this paper, we develop a novel image similarity called implicit linesegment similarity(ILS) and a registration algorithm of infrared and visible images based on ILS. Essentially, the algorithm achieves image registration by aligning the corresponding line segment features in two images. First, we extract line segment features and record their coordinate positions in one of the images, and map these line segments into the second image based on the geometric transformation model. Then we iteratively maximize the degree of similarity between the line segment features and correspondence regions in the second image to obtain the model parameters. The advantage of doing this is no need directly measuring the gray similarity between the two images. We adopt a multi-resolution analysis method to calculate the model parameters from coarse to fine on Gaussian scale space. The geometric transformation parameters are finally obtained by the improved Powell algorithm. Comparative experiments demonstrate that the proposed algorithm can effectively achieve the automatic registration for infrared and visible images, and under considerable accuracy it makes a more significant improvement on computational efficiency and anti-noise ability than previously proposed algorithms.

收藏 | 浏览/下载：18/0 | 提交时间：2013/12/24

chemical engineering mathematics similarity solution dimensional analysis variable transformation mass transfer

Evaluation of spatial upscaling methods based on remote sensing data with multiple spatial resolutions (EI CONFERENCE) 会议论文 OAI收割
Satellite Data Compression, Communications, and Processing VIII, August 12, 2012 - August 13, 2012, San Diego, CA, United states
Ren R.; Gu L.; Cao J.; Chen H.; Sun J.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

In most applications of remote sensing data special spatial information is required from a finer to a coarser spatial resolution with appropriate upscaling methods. The purpose of this paper is to compare and evaluate current spatial upscaling methods using MODIS remote sensing data with multiple spatial resolutions. In the research Northeast China was selected as the study area. MODIS data with spatial resolutions of 250 m (2 bands) and 500 m (7 bands) were used as the test data. Through using the selected upscaling methods the Band 1 and Band 2 data of MODIS were scaled up from 250 m to 500 m spatial resolution. On the basis of land cover characteristics of Northeast China the MODIS data located in the study area was classified into the five land cover types including water grasslands forests farmlands and bare lands using maximum likelihood method. The land cover classification results were further compared with MODIS Land Cover Type product. Finally Structural Similarity (SSIM) was selected to evaluate the effects of these upscaling methods. The research can provide more useful information for spatial scaling transformation in remote sensing data applications. 2012 SPIE.

Rogon-like solutions excited in the two-dimensional nonlocal nonlinear Schrodinger equation 期刊论文 OAI收割
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2011, 卷号: 380, 期号: 2, 页码: 689-696
作者: Yan, Zhenya

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收藏 | 浏览/下载：10/0 | 提交时间：2018/07/30

Nonlocal NLS equation Similarity transformation Rational-like solutions Rogue waves Rogons

Exact analytical solutions for the generalized non-integrable nonlinear Schrodinger equation with varying coefficients 期刊论文 OAI收割
PHYSICS LETTERS A, 2010, 卷号: 374, 期号: 48, 页码: 4838-4843
作者: Yan, Zhenya

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收藏 | 浏览/下载：12/0 | 提交时间：2018/07/30

Generalized non integrable nonlinear Schrodinger equation with varying coefficients Similarity transformation The tri function method Analytical solutions

Nonautonomous "rogons" in the inhomogeneous nonlinear Schrodinger equation with variable coefficients 期刊论文 OAI收割
PHYSICS LETTERS A, 2010, 卷号: 374, 期号: 4, 页码: 672-679
作者: Yan, Zhenya

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收藏 | 浏览/下载：13/0 | 提交时间：2018/07/30

Inhomogeneous NLS equation with variable coefficients Similarity transformation Rational-like solutions Rogue waves Rogons