在经典理论框架下,相干探测性能受限于散粒噪声对应的标准量子极限,而量子增强接收技术通过引入位移算子,采用关联的方式将经典的平衡零拍/零差探测转化为光子数态的测量,理论上可以突破标准量子极限并不断逼近Helstrom极限。无歧义量...在经典理论框架下,相干探测性能受限于散粒噪声对应的标准量子极限,而量子增强接收技术通过引入位移算子,采用关联的方式将经典的平衡零拍/零差探测转化为光子数态的测量,理论上可以突破标准量子极限并不断逼近Helstrom极限。无歧义量子态识别(Unambiguous State Discrimination,USD)是量子增强接收常用的识别判决策略之一。然而,由于微弱光信号的能量有限,传统的USD量子增强接收方法的适用微弱信号范围较小,微弱信号识别的错误率较高。提出了一种QPSK调制量子增强接收的混合测量优化方案,该方案首先通过二态零差测量将QPSK相干态的区分转化为BPSK相干态的区分,然后通过BPSK量子增强接收测量实现相干态的无歧义识别。仿真表明,混合测量方案在平均光子数在3.2~11.3之间优于经典的外差测量方案,而且比传统QPSK量子增强接收方案具有更大的适用信号范围。展开更多
Predicate-Argument （PA） structure anal- ysis is often divided into three subtasks： predicate sense disambiguation, argument identification and argument classification mostly been modeled in To date, they have isol...Predicate-Argument （PA） structure anal- ysis is often divided into three subtasks： predicate sense disambiguation, argument identification and argument classification mostly been modeled in To date, they have isolation. However, this approach neglects logical constraints between them. We therefore exploite integrating predicate sense disambiguation with the latter two subtasks respectively, which verifies that the automatic predicate sense disambiguation could help the se- mantic role labeling task. In addition, a dual de- composition algorithm is used to alleviate the er- ror propagation between argument identification subtask and argument classification subtask by benefitting the argument identification subtask greatly. Experiment results show that our ap- proach leads to a better performance with PA a- nalysis than other pipeline approaches.展开更多
Bringing the aspect of ＂gender＂ into translation studies, feminism gave fresh impetus to the ＂Cultural Turn＂ for translation studies in 1990s. Feminist translation theory puts forward its viewpoints on the role of...Bringing the aspect of ＂gender＂ into translation studies, feminism gave fresh impetus to the ＂Cultural Turn＂ for translation studies in 1990s. Feminist translation theory puts forward its viewpoints on the role of gender and approves of translators＇ gender role in the interpretation of the original text. It seems that gender is of no more importance than other factors, such as nationality, class, and ideology of translators. Translation and women have been long associated with each other for they both occupy peripheral positions. The conventional view holding sway is that a translation is considered a secondary work dependent on, and subservient to, the original text, just as women are assigned dependent functions under patriarchal power. Unsatisfied with the notion that translator, translation and women are all relegated to the inferior class, feminist translators do their utmost to cast away the conventional sexism ideas in translation studies and social ideology. The core of feminist translation theory is： ＂identify and critique the tangle of concepts which relegates both women and translation to the bottom of the social and literary ladder＂ （Simon 1996：1）. In order to realize the dream to overthrow patriarchal domination and make themselves visible, feminist translators seek to emphasize their identity and ideological stance in the translation project. Feminist translators are no longer invisible. They have the right to revise, manipulate and occupy the source text. Feminist translation is nothing but the translators＇ creative treason from the perspective of feminism. The thesis first systematically summarizes the present feminist translation theories, followed by a detailed analysis of some gender-related translation issues, especially the relationship between language and gender. After the analysis of some cases from the feminist translators, different translation approaches adopted are explored to show the peculiar characteristics of feminist translation.展开更多
文摘在经典理论框架下,相干探测性能受限于散粒噪声对应的标准量子极限,而量子增强接收技术通过引入位移算子,采用关联的方式将经典的平衡零拍/零差探测转化为光子数态的测量,理论上可以突破标准量子极限并不断逼近Helstrom极限。无歧义量子态识别(Unambiguous State Discrimination,USD)是量子增强接收常用的识别判决策略之一。然而,由于微弱光信号的能量有限,传统的USD量子增强接收方法的适用微弱信号范围较小,微弱信号识别的错误率较高。提出了一种QPSK调制量子增强接收的混合测量优化方案,该方案首先通过二态零差测量将QPSK相干态的区分转化为BPSK相干态的区分,然后通过BPSK量子增强接收测量实现相干态的无歧义识别。仿真表明,混合测量方案在平均光子数在3.2~11.3之间优于经典的外差测量方案,而且比传统QPSK量子增强接收方案具有更大的适用信号范围。
文摘Predicate-Argument （PA） structure anal- ysis is often divided into three subtasks： predicate sense disambiguation, argument identification and argument classification mostly been modeled in To date, they have isolation. However, this approach neglects logical constraints between them. We therefore exploite integrating predicate sense disambiguation with the latter two subtasks respectively, which verifies that the automatic predicate sense disambiguation could help the se- mantic role labeling task. In addition, a dual de- composition algorithm is used to alleviate the er- ror propagation between argument identification subtask and argument classification subtask by benefitting the argument identification subtask greatly. Experiment results show that our ap- proach leads to a better performance with PA a- nalysis than other pipeline approaches.
文摘Bringing the aspect of ＂gender＂ into translation studies, feminism gave fresh impetus to the ＂Cultural Turn＂ for translation studies in 1990s. Feminist translation theory puts forward its viewpoints on the role of gender and approves of translators＇ gender role in the interpretation of the original text. It seems that gender is of no more importance than other factors, such as nationality, class, and ideology of translators. Translation and women have been long associated with each other for they both occupy peripheral positions. The conventional view holding sway is that a translation is considered a secondary work dependent on, and subservient to, the original text, just as women are assigned dependent functions under patriarchal power. Unsatisfied with the notion that translator, translation and women are all relegated to the inferior class, feminist translators do their utmost to cast away the conventional sexism ideas in translation studies and social ideology. The core of feminist translation theory is： ＂identify and critique the tangle of concepts which relegates both women and translation to the bottom of the social and literary ladder＂ （Simon 1996：1）. In order to realize the dream to overthrow patriarchal domination and make themselves visible, feminist translators seek to emphasize their identity and ideological stance in the translation project. Feminist translators are no longer invisible. They have the right to revise, manipulate and occupy the source text. Feminist translation is nothing but the translators＇ creative treason from the perspective of feminism. The thesis first systematically summarizes the present feminist translation theories, followed by a detailed analysis of some gender-related translation issues, especially the relationship between language and gender. After the analysis of some cases from the feminist translators, different translation approaches adopted are explored to show the peculiar characteristics of feminist translation.
