查询词典 based on...

A new sequential pattern algorithm based on depth-first search strategy is introduced and the mining mechanism based on lexicographic tree is presented in this paper.The data structure of bitmap is used in order to save and calculate the support of sequences fast.

提出了基于位图深度优先挖掘算法，采用基于字典树数据结构的深度优先策略，同时采用位图保存和计算各序列的支持度，能够较迅速地挖掘出频繁序列。

Theretrieving result of ARS shape descriptor is far better than DART which is based on regional shape too.· Adopting pre-deal technique by using global value limen based on lumen to segment images before retrieving images object shape descriptor.

提出了一种ARS形状描述符提取方法，与同样基于区域的形状的DART形状描述符提取方法相比取得了更好的检索效果。

In order to realize precise compression of scattered data and predigest the establishing process of geometry topology relation, scattered data is converted into scan line data, the point cloud is disposed by the method of direct slicing, the algorithm of intersection between line and surface based on a pair of the least distance relation points and the algorithm of track based on eight directions coding of the section contour data are carried out and the method feasibility is proved by the example.

为了实现数据的精确压缩，简化点与点之间拓扑结构的建立，把散乱数据转化为扫描线数据，对点云数据进行了直接分层处理，采用了基于最小距离关联点对的线面截交算法和截面轮廓数据的八方向编码追踪算法，并用实例验证了方法的可行性。

The characteristics of bicycle flow are analyzed based on observational data. The results show that the density of the queued bikes decreases lineally as does the width of the bike lanes. The relationship is based on scientific methodology applicable for calculating bicycle traffic capacity at signaled intersections.

为科学合理地解决城市道路信号控制交叉口自行车交通流通行能力的计算问题，在分析大量实测数据的基础上，对信号控制交叉口自行车交通流的运行特征进行了分析，得出自行车停车排队密度随交叉口自行车道宽度增加而线性递减的关系。

The characteristics of bicycle flow are analyzed based on observational data. The results show that the density of the queued bikes decreases lineally as does the width of the bike lanes. The relationship is based on scientific methodology applicable for calculating bicycle traffic capacity at signa LED intersections.

为科学合理地解决城市道路信号控制交叉口自行车交通流通行能力的计算问题，在分析大量实测数据的基础上，对信号控制交叉口自行车交通流的运行特征进行了分析，得出自行车停车排队密度随交叉口自行车道宽度增加而线性递减的关系。

To develop Linear Fractional Transformation model based on quasi-linear model for ground-to-air missile, state transformation method was used to establish quasi-Linear Parameter Varying model for missile longitudinal short-period dynamics by changing missile states along with an equilibrium trajectory decided by time-varying parameters. Based on the obtained quasi-LPV model, the LFT model of the missile was developed by use of MATLAB functions, and the missile dynamics were explicitly separated into certainty part and time-varying parameter part.

为了建立基于准线性化模型的地空导弹线性分式变换模型，采用状态替换方法将导弹的状态沿着一条由时变参数决定的平衡点轨迹进行变换，建立了纵向短周期动力学的准线性参数时变模型；基于所建立的准LPV模型，采用MATLAB函数建立了导弹的LFT模型，将导弹动力学明确描述为确定性部分和时变参数部分。

Based on a profound study of the variation law of phase difference between two periodic signals and the ordinary frequency measurement method, this paper presents a new method for comparing frequency standards, which is based on the Lissajous figure.

用传统的李沙育图形法是不能完成对高精度频标比对的，但将等效鉴相频率这一新概念引进，可以使得本来不能完成的高精度频率标准的比对变为可能。

Based on survey of existing methods, in this dissertation: aimed to the reliability of stereo image matching in digital photogrammetric, a new matching strategy utilized local continuity constraints encoded by triangulation of the well-defined points is proposed; concerned with the inherent efficient, accuracy and size constraint problems of existing topographic structure extraction approach, an efficient, accurate and large scale data adapted approach based on the combination of vector and raster processes are proposed.

在对国内外这方面工作进行总结分析的基础上，针对数字摄影测量立体像对影像匹配的可靠性问题，首次提出了基于良好匹配点三角形约束下影像匹配传播方法；为了解决以往基于邻域操作的地形结构线提取算法效率低下、结果准确性差和处理数据规模限制等问题，提出了适用于大规模规则格网DEM数据的基于矢量、栅格操作相结合的地形结构线快速提取算法。

Existing particle swarm algorithm and its variations converge slowly and get into local extremum easily. Due to this, based on the characteristics of current conceptual designing, an improved particle swarm optimizational model based on dynamic niche is proposed in this paper.

现有的微粒群算法及其变种都有着收敛速度慢、容易陷入局部极值问题，再针对目前创新概念设计的特点，本文提出一种改进的基于动态小生境的微粒群优化模型。

It can draw a conclusion that 1-bit algorithm is feasible and valid method for signal time delay estimation replacing with cross-correlation principle The paper gives an overview about the localization principle with temperature sensors arrays based on the far-field algorithm and the near-field algorithm, and discusses the performance of fire source localization principle based on combination of the two algorithms.

本文介绍了将热气流温度波前视为平面波的远场算法和将热气流温度波前视为圆形波的近场算法，讨论了远、近场算法相结合的火灾定位性能。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。