| ID | 原文 | 译文 |
| 21405 | 然后利用Paragraph2vec算法中PV-DM模型抽取轨迹序列中位置访问顺序特征，得到用户轨迹的向量表示。 | The PV-DM model is trained by different types of training samples, and the vector representation of the user trajectories is obtained. |
| 21406 | 最后通过用户轨迹向量判定轨迹是否匹配。 | Finally, the matching of the trajectory is determined by the user trajectory vector. |
| 21407 | 在社交网络BrightKite上的实验结果表明，与基于位置访问频率或者基于轨迹间距离的方法相比，F值提高了2%～4%个百分点，所提算法能够有效地抽取出用户轨迹中的位置访问顺序特征，更加准确地实现了基于用户轨迹的跨社交网络用户身份识别。 | Experimental results on BrightKite shows that the F-measure is improved by 2%～4% compared with the existing frequency based and distance based algorithm. The proposed algorithm can effectively extract the orde rfeature of location sequence, and realize the trajectory based user identification across social networks. |
| 21408 | 该文设计了一种新颖的宽带圆极化单极子天线，该天线采用微带馈电模式。 | A novel broadband circularly polarized monopole antenna is proposed by microstrip feed line. |
| 21409 | 天线由C型贴片和改进的地板组成，整个天线尺寸仅为25×25×1 mm3。通过在C型贴片上切角和在地板上增加三角形微扰结构，可以有效增加天线的阻抗带宽和轴比带宽。 | The antenna is composed of C-shaped patch and an improved ground plane with the overall size of 25×25×1 mm3. The impedance bandwidth and axial ratio bandwidth of the antenna can be effectively widened by cutting the corner on the C-shaped patch and adding triangular stubs on the ground plane. |
| 21410 | 该文给出了天线的设计流程，从表面电流分布分析了圆极化天线的工作机理。 | The design procedure of the antenna is given, and the working mechanism of the circularly polarized antenna is analyzed from the surface current distributions. |
| 21411 | 加工了天线实物，并对其进行了测量。 | Besides, the antenna is fabricated and measured. |
| 21412 | 仿真和实测结果表明天线具有超宽的阻抗带宽和轴比带宽。 | Simulated and measured results show that the antenna has ultra wide impedance bandwidth and axial ratio bandwidth. |
| 21413 | 天线的工作频带为4.35～12 GHz(相对带宽为93.6%)，3 dB轴比带宽为4.15～11.8 GHz(相对带宽为95.9%)。 | The operating bandwidth of the antenna is 4.35～12 GHz (relative bandwidth 93.6%), and the 3 dB axial ratio bandwidth is 4.15～11.8GHz (relative bandwidth 95.9%). |
| 21414 | 测量了天线的辐射性能和增益特性，实测结果与仿真结果吻合较好，证明了该天线的有效性。 | At the same time, the radiation performance and gain characteristics of the antenna are measured and the measured results are in good agreement with the simulated results, which proves the effectiveness of the antenna. |