ID |
原文 |
译文 |
24815 |
实验结果表明,该模型在 MS-COCO 数据集取得不错效果,将 Karpathy 分割测试中的 CIDEr 值从 120.1 提高到124.3。 |
The experimental results show that the model can get good results in MS-COCO data set and improve the CIDEr value of Karpathy segmentation test from 120.1 to 124.3. |
24816 |
针对现有的轨迹隐私保护模型大多难以抵御复杂背景知识攻击的问题,本文提出了一种基于差分隐私的轨迹隐私保护方法。 |
Aiming at the problem that most of the existing trajectory privacy protection models are difficult to withstand complex background knowledge attacks, this paper proposes a trajectory privacy protection method based on differential privacy. |
24817 |
首先结合地理不可区分机制对原始轨迹数据添加半径受限的拉普拉斯噪音; |
Firstly, the Laplacian noise with limited radius is added to the original trajectory data by combining the mechanism of geographic indistinguishability. |
24818 |
其次构造数据映射模型将原始数据和噪音数据映射到新的发布位置,使攻击者无法获取真实轨迹数据; |
Secondly, a data mapping model is constructed to map the original data and noise data to the new publishing location, so that the attacker cannot obtain the real trajectory data. |
24819 |
接着应用最优数据映射函数发布最优的轨迹位置以提高发布数据的可用性; |
Then the optimal data mapping function is applied to publish the optimal trajectory position to improve the availability of published data. |
24820 |
最后利用差分隐私抵御非敏感信息推理攻击,进一步保护用户隐私。 |
Finally, differential privacy is used to defend against non-sensitive information inference attack to further protect user privacy. |
24821 |
实验结果表明,本文算法既能有效保护轨迹数据中用户的隐私,也能保证数据的可用性。 |
The experimental results show that the algorithm in this paper can not only effectively protect the privacy of users in the trajectory data, but also ensure the availability of the data. |
24822 |
现有的 WEBee 系统可通过模拟接收器的标准时域波形在物理层面实现 WiFi 到 ZigBee 的跨网通信,但该系统存在单次传输帧接收率不高,符号错误率较大等局限。 |
Recently, the WEBee system achieved the one-way communication from WiFi to ZigBee on the physical level by emulating the time-domain signal of receiver. However, there are some shortcomings in WEBee such as short FRR (Frame Receive Rate) of single transmission frames and a large SER (Symbol Error Ratio). |
24823 |
针对该局限,本文提出了一种基于循环前缀前的编码拆分优化方案,主要思想是对 ZigBee 前导码中的同步码序列进行编码拆分,可有效降低循环前缀操作时出现的错误,提高帧接收率。 |
In view of the above-mentioned facts, this paper proposes an optimization scheme via split coding before cyclic prefix (CP). The main idea is splitting and coding the synchronization word sequences in ZigBee's preamble. It can reduce the error occurred in the CP operation effectively and improve the FRR. |
24824 |
结果表明该方案优化系统单次传输的帧接收率可达 65.2%,相比原系统提高了 8.1%,且单次传输的符号错误率从2.7%降低至1.8%。 |
The results show that the maximum FRR can reach 65.2%, which is 8.1% higher than theoriginal system. Furthermore, the SER is reduced from 2.7% to 1.8%. |