Camouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Aiming at the electroacoustic disguised voice, we get fundamental frequ...Camouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Aiming at the electroacoustic disguised voice, we get fundamental frequency variation rule before and after voice change of multiple corpuses by analyzing map and data. The results show that the fundamental frequency before and after voice change exists a linearity relationship, we can realize speaker identification in electroacoustic disguised speech field through comparing Chinese pitch pattern.展开更多
CHINA＇S economy grew at a rate of 7.4 percent in 2014 amidst painstaking efforts to carry out structural reform, eliminate outdated production capacity and promote innovation. ＂China has surmounted tremendous press...CHINA＇S economy grew at a rate of 7.4 percent in 2014 amidst painstaking efforts to carry out structural reform, eliminate outdated production capacity and promote innovation. ＂China has surmounted tremendous pressures and challenges to realize its goal of maintaining a growth rate around 7.5 percent,＂ said Ma Jiantang, Commissioner of the National Bureau of Statistics （NBS）. noting that the growth rate was hard-won against the nation＇s massive economic aggregate output of 63.6 trillion yuan （S10.4 trillion）.展开更多
To explore the mechanism of entry to the self-employed sector in urban China,this study tested two hypotheses:the entrepreneurship hypothesis and the disguised unemployment hypothesis,investigating the impact of mass ...To explore the mechanism of entry to the self-employed sector in urban China,this study tested two hypotheses:the entrepreneurship hypothesis and the disguised unemployment hypothesis,investigating the impact of mass entrepreneurship and innovation policies on business start-ups.Three main findings emerged.First,the entrepreneurship hypothesis was rejected for both local urban residents and migrants in 2013 but was supported for both groups in 2018.Second,the causality relationship between mass entrepreneurship and innovation policies and business starts-ups was not significant.Third,the results differed by group.The entrepreneurship hypothesis was supported for the younger generation of migrants in 2018 but was clearly rejected for the less educated,both in the local urban resident and migrant groups in 2013 and 2018.Robustness checks confirmed these conclusions.展开更多
Japan, which is increasingly frustrated that it has not been granted a permanent seat on the UN Security Council, has found a new outlet of displeasure against the world body. On March 10, Japan proposed to the UN Gen...Japan, which is increasingly frustrated that it has not been granted a permanent seat on the UN Security Council, has found a new outlet of displeasure against the world body. On March 10, Japan proposed to the UN General Assembly budget committee,展开更多
China’s driverless intelligent automobile technology is now world class Driverless vehicles may seem like an outlandish concept to most people, more like something from the movie
U.S. President Barack Obama’s recent meeting with the Dalai Lama has sparked strong reactions in China. Xinhua News Agency released an article titled "Foreign Backing Gives Dalai Lama No Room But Doom" to r...U.S. President Barack Obama’s recent meeting with the Dalai Lama has sparked strong reactions in China. Xinhua News Agency released an article titled "Foreign Backing Gives Dalai Lama No Room But Doom" to reveal the illegitimate nature of the Dalai Lama’s "Tibetan Government-in-exile." The article, bylined Yiduo, also attacked the monk’s "Tibet independence." Excerpts of the article follow展开更多
IT is said that: because men took the dominant position in most areas and ages during the developing process of human kind, it is tolerable to men if women dress in men's clothes. Men
The backhanded compliment is a special language phenomenon. A backhanded compliment is a compliment on its appearance, but its implication meaning may be an insult. The reason why speakers do not adopt direct insult i...The backhanded compliment is a special language phenomenon. A backhanded compliment is a compliment on its appearance, but its implication meaning may be an insult. The reason why speakers do not adopt direct insult instead of using this kind of ambiguous expression is that backhanded compliments can serve two main social functions such as: being humor and acting as a face-saving strategy to mute the meaning of insult.展开更多
The disguised covert detection method that imitates whale calls has received great attention in recent years because it can solve the traditional problem of the trade-off between long-range detection and covert detect...The disguised covert detection method that imitates whale calls has received great attention in recent years because it can solve the traditional problem of the trade-off between long-range detection and covert detection.However,under strong reverberation conditions,traditional echo signal processing methods based on matched filtering will be greatly disturbed.Based on this,a disguised sonar signal waveform design is proposed based on imitating whale calls and computationally efficient anti-reverberation echo signal processing method.Firstly,this article proposed a disguised sonar signal waveform design method based on imitating whale calls.This method uses linear frequency modulation(LFM)signals to replace LFM-like segments in real whale calls,and extracts the envelope of the real whale call’s LFM-like segment to modify the LFM signal.Secondly,this article proposed an echo signal processing method of fractional Fourier transform(FrFT)based on target echo locating of synchronization signals.This method uses the synchronization signal to locate the target echo,and determines the step-size interval of the FrFT based on the information carried by the synchronization signal.Compared with the traditional FrFT,this method effectively reduces the amount of calculation and also improves the anti-reverberation ability.Finally,the excellent performance of the proposed method is verified by simulation results.展开更多
In the sense of destitution, human wretchedness, and powerlessness, poverty is a permanent feature of medieval society, inescapable for many men and women. Some virtuous, self-denying people voluntarily chose a life o...In the sense of destitution, human wretchedness, and powerlessness, poverty is a permanent feature of medieval society, inescapable for many men and women. Some virtuous, self-denying people voluntarily chose a life of poverty, usually with a sense of advancing in Christian spirituality. Often associated in moral writing with covetousness, poverty figures among the vices to avoid. In literary works, some instances of poverty and its victims have acquired exemplary value, as is the case of Yvain＇s encounter with three hundred women silk workers in Chr6tien de Troyes＇s 12th-century romance Le Chevalier au lion and its socio-economic implications. Two particular literary contexts are studied here： firstly, where poverty is a temporary condition, susceptible to change, that is improvement, by virtue of courtly-chivalrous action; and secondly, where poverty provides an effective means of disguise, despite possible dangers. While serving the narrative purpose, an ever-present aspect of reality was thus impressed on the audience展开更多
It is said that there is no hero in The Merchant of Venice, but a heroine, who is Portia, an independent, intelligent and beautiful Renaissance lady, who makes great efforts to grasp and defend her happiness. Her exce...It is said that there is no hero in The Merchant of Venice, but a heroine, who is Portia, an independent, intelligent and beautiful Renaissance lady, who makes great efforts to grasp and defend her happiness. Her excellent performance in Shylock's suit also exhibits her extraordinary splendor as the focus of the whole play. However, she has to accept the conventional orientation for a woman's fate, obedient to her father and her husband, and yet she cannot participate in the social career unless in disguise.展开更多
The problem of disguised voice recognition based on deep belief networks is studied. A hybrid feature extraction algorithm based on formants, Gammatone frequency cepstrum coefficients(GFCC) and their different coeffic...The problem of disguised voice recognition based on deep belief networks is studied. A hybrid feature extraction algorithm based on formants, Gammatone frequency cepstrum coefficients(GFCC) and their different coefficients is proposed to extract more discriminative speaker features from the original voice data. Using mixed features as the input of the model, a masquerade voice library is constructed. A masquerade voice recognition model based on a depth belief network is proposed. A dropout strategy is introduced to prevent overfitting, which effectively solves the problems of traditional Gaussian mixture models, such as insufficient modeling ability and low discrimination. Experimental results show that the proposed disguised voice recognition method can better fit the feature distribution, and significantly improve the classification effect and recognition rate.展开更多
文摘Camouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Aiming at the electroacoustic disguised voice, we get fundamental frequency variation rule before and after voice change of multiple corpuses by analyzing map and data. The results show that the fundamental frequency before and after voice change exists a linearity relationship, we can realize speaker identification in electroacoustic disguised speech field through comparing Chinese pitch pattern.
文摘CHINA＇S economy grew at a rate of 7.4 percent in 2014 amidst painstaking efforts to carry out structural reform, eliminate outdated production capacity and promote innovation. ＂China has surmounted tremendous pressures and challenges to realize its goal of maintaining a growth rate around 7.5 percent,＂ said Ma Jiantang, Commissioner of the National Bureau of Statistics （NBS）. noting that the growth rate was hard-won against the nation＇s massive economic aggregate output of 63.6 trillion yuan （S10.4 trillion）.
基金supported financially by the Japan Society for the Promotion of Science from the Ministry of Education,Culture,Sports,Sciences and Technology of Japan(KAKENHI:Nos.20H01512,20H01489).
文摘To explore the mechanism of entry to the self-employed sector in urban China,this study tested two hypotheses:the entrepreneurship hypothesis and the disguised unemployment hypothesis,investigating the impact of mass entrepreneurship and innovation policies on business start-ups.Three main findings emerged.First,the entrepreneurship hypothesis was rejected for both local urban residents and migrants in 2013 but was supported for both groups in 2018.Second,the causality relationship between mass entrepreneurship and innovation policies and business starts-ups was not significant.Third,the results differed by group.The entrepreneurship hypothesis was supported for the younger generation of migrants in 2018 but was clearly rejected for the less educated,both in the local urban resident and migrant groups in 2013 and 2018.Robustness checks confirmed these conclusions.
文摘Japan, which is increasingly frustrated that it has not been granted a permanent seat on the UN Security Council, has found a new outlet of displeasure against the world body. On March 10, Japan proposed to the UN General Assembly budget committee,
文摘China’s driverless intelligent automobile technology is now world class Driverless vehicles may seem like an outlandish concept to most people, more like something from the movie
文摘U.S. President Barack Obama’s recent meeting with the Dalai Lama has sparked strong reactions in China. Xinhua News Agency released an article titled "Foreign Backing Gives Dalai Lama No Room But Doom" to reveal the illegitimate nature of the Dalai Lama’s "Tibetan Government-in-exile." The article, bylined Yiduo, also attacked the monk’s "Tibet independence." Excerpts of the article follow
文摘IT is said that: because men took the dominant position in most areas and ages during the developing process of human kind, it is tolerable to men if women dress in men's clothes. Men
文摘The backhanded compliment is a special language phenomenon. A backhanded compliment is a compliment on its appearance, but its implication meaning may be an insult. The reason why speakers do not adopt direct insult instead of using this kind of ambiguous expression is that backhanded compliments can serve two main social functions such as: being humor and acting as a face-saving strategy to mute the meaning of insult.
基金National Natural Science Foundations of China under Grant(Nos.61971307,61905175,51775377)National Key Research and Development Plan Project(No.2020YFB2010800)+5 种基金Fok Ying Tung Education Foundation(No.171055)China Postdoctoral Science Foundation(No.2020M680878)Guangdong Province Key Research and Development Plan Project(No.2020B0404030001)Tianjin Science and Technology Plan Project(No.20YDTPJC01660)Foreign Affairs Committee of China Aviation Development Sichuan Gas Turbine Research Institute(Nos.GJCZ-2020-0040,GJCZ-2020-0041)Science and Technology on Underwater Information and Control Laboratory under Grant(No.6142218081811)。
文摘The disguised covert detection method that imitates whale calls has received great attention in recent years because it can solve the traditional problem of the trade-off between long-range detection and covert detection.However,under strong reverberation conditions,traditional echo signal processing methods based on matched filtering will be greatly disturbed.Based on this,a disguised sonar signal waveform design is proposed based on imitating whale calls and computationally efficient anti-reverberation echo signal processing method.Firstly,this article proposed a disguised sonar signal waveform design method based on imitating whale calls.This method uses linear frequency modulation(LFM)signals to replace LFM-like segments in real whale calls,and extracts the envelope of the real whale call’s LFM-like segment to modify the LFM signal.Secondly,this article proposed an echo signal processing method of fractional Fourier transform(FrFT)based on target echo locating of synchronization signals.This method uses the synchronization signal to locate the target echo,and determines the step-size interval of the FrFT based on the information carried by the synchronization signal.Compared with the traditional FrFT,this method effectively reduces the amount of calculation and also improves the anti-reverberation ability.Finally,the excellent performance of the proposed method is verified by simulation results.
文摘In the sense of destitution, human wretchedness, and powerlessness, poverty is a permanent feature of medieval society, inescapable for many men and women. Some virtuous, self-denying people voluntarily chose a life of poverty, usually with a sense of advancing in Christian spirituality. Often associated in moral writing with covetousness, poverty figures among the vices to avoid. In literary works, some instances of poverty and its victims have acquired exemplary value, as is the case of Yvain＇s encounter with three hundred women silk workers in Chr6tien de Troyes＇s 12th-century romance Le Chevalier au lion and its socio-economic implications. Two particular literary contexts are studied here： firstly, where poverty is a temporary condition, susceptible to change, that is improvement, by virtue of courtly-chivalrous action; and secondly, where poverty provides an effective means of disguise, despite possible dangers. While serving the narrative purpose, an ever-present aspect of reality was thus impressed on the audience
文摘It is said that there is no hero in The Merchant of Venice, but a heroine, who is Portia, an independent, intelligent and beautiful Renaissance lady, who makes great efforts to grasp and defend her happiness. Her excellent performance in Shylock's suit also exhibits her extraordinary splendor as the focus of the whole play. However, she has to accept the conventional orientation for a woman's fate, obedient to her father and her husband, and yet she cannot participate in the social career unless in disguise.
基金supported by Natural Science Foundation of Liaoning Province (Nos. 2019-ZD-0168 and 2020-KF-12-11)Major Training Program of Criminal Investigation Police University of China (No. 3242019010)+1 种基金Key Research and Development Projects of Ministry of Science and Technology (No. 2017YFC0821005)Second Batch of New Engineering Research and Practice Projects(No. E-AQGABQ20202710)。
文摘The problem of disguised voice recognition based on deep belief networks is studied. A hybrid feature extraction algorithm based on formants, Gammatone frequency cepstrum coefficients(GFCC) and their different coefficients is proposed to extract more discriminative speaker features from the original voice data. Using mixed features as the input of the model, a masquerade voice library is constructed. A masquerade voice recognition model based on a depth belief network is proposed. A dropout strategy is introduced to prevent overfitting, which effectively solves the problems of traditional Gaussian mixture models, such as insufficient modeling ability and low discrimination. Experimental results show that the proposed disguised voice recognition method can better fit the feature distribution, and significantly improve the classification effect and recognition rate.
