Discriminative Latent Model(DLM) is proposed for Multiword Expressions(MWEs) extraction in Chinese text to improve the performance of Machine Translation(MT) system such as Template Based MT(TBMT).For MT systems to be...Discriminative Latent Model(DLM) is proposed for Multiword Expressions(MWEs) extraction in Chinese text to improve the performance of Machine Translation(MT) system such as Template Based MT(TBMT).For MT systems to become of further practical use,they need to be enhanced with MWEs processing capability.As our study towards this goal,we propose DLM,which is developed for sequence labeling task including hidden structures,to extract MWEs for MT systems.DLM combines the advantages of existing discriminative models,which can learn hidden structures in sequence labeling task.In our evaluations,DLM achieves precisions ranging up to 90.73% for some type of MWEs,which is higher than state-of-the-art discriminative models.Such results demonstrate that it is feasible to automatically identify many Chinese MWEs using our DLM tool.With MWEs processing model,BLEU score of MT system has also been increased by up to 0.3 in close test.展开更多
Preliminary basic research and clinical findings have demonstrated that electroacupuncture ther- apy exhibits positive effects in ameliorating depression. However, most studies of the underlying mechanism are at the s...Preliminary basic research and clinical findings have demonstrated that electroacupuncture ther- apy exhibits positive effects in ameliorating depression. However, most studies of the underlying mechanism are at the single gene level; there are few reports regarding the mechanism at the whole-genome level. Using a rat genomic gene-chip, we profiled hippocampal gene expression changes in rats after electroacupuncture therapy. Electroacupuncture therapy alleviated depres- sion-related manifestations in the model rats. Using gene-chip analysis, we demonstrated that electroacupuncture at Baihui （DU20） and Yintang （EX-HN3） regulates the expression of 21 genes. Real-time PCR showed that the genes Vgf, lgf2, Trnp32, Loc500373, Hifla, Folrl, Nrnb, and Rtn were upregulated or downregulated in depression and that their expression tended to nor- malize after electroacupuncture therapy. These results indicate that electroacupuncture at Baihui and Yintang modulates depression by regulating the expression of particular genes.展开更多
Most of the robots are nowadays evolving and imitating human social skills to achieve sociable interaction with humans.Socially interactive robots require different characteristics than conventional robots.Likewise hu...Most of the robots are nowadays evolving and imitating human social skills to achieve sociable interaction with humans.Socially interactive robots require different characteristics than conventional robots.Likewise human-human interaction,human-robot interaction is also accompanied with emotional interaction.Therefore,the robot’s emotional expression is very important for human,especially facial expressions play an important role among the whole part of the human body.In this paper,we introduce a facial robot expression simulator FRESi.展开更多
【目的】克隆小黑杨(Populus×xiaohei T.S.Hwang et Liang)RAV1和RAV2基因,分析这2个基因在非生物胁迫下的表达模式,为进一步研究小黑杨基因功能提供理论依据。【方法】以抗逆性强的小黑杨根为试材,克隆2个RAV家族成员。利用生物...【目的】克隆小黑杨(Populus×xiaohei T.S.Hwang et Liang)RAV1和RAV2基因,分析这2个基因在非生物胁迫下的表达模式,为进一步研究小黑杨基因功能提供理论依据。【方法】以抗逆性强的小黑杨根为试材,克隆2个RAV家族成员。利用生物信息学方法对小黑杨2个RAV基因的理化性质、保守基序、保守结构域、系统进化进行分析,并采用半定量RT-PCR方法探讨这2个基因在小黑杨顶芽、叶、木质部、韧皮部、根、第1~14片叶、第1~11茎节中的表达情况,以及在CdCl2、NaCl、NaHCO3、PEG和ABA胁迫下的表达特性。【结果】从小黑杨中克隆出2个RAV基因,命名为PsnRAV1和PsnRAV2。PsnRAV1编码405个氨基酸,预测分子质量约为99.46 ku,等电点5.06,不存在信号肽;PsnRAV2编码407个氨基酸,预测分子质量约为99.33 ku,等电点5.06,存在信号肽;2个基因均位于细胞核上。保守结构域和保守基序分析结果表明,小黑杨RAV蛋白具有RAV家族特有的AP2和B3这2个保守蛋白结构域,基序1、2、3是构成2个结构域的主要基序。系统进化分析表明,20种植物的RAV蛋白分为3组,其中PsnRAV1和PsnRAV2与毛果杨(Populus trichocarpa)RAV同源性很高。半定量RT-PCR分析结果显示,2个PsnRAVs基因在小黑杨的顶芽、叶、木质部、韧皮部和根中均有表达;且随着叶和茎的发育,2个基因的表达量均呈现升高的趋势。在CdCl2、NaCl、NaHCO3模拟的重金属及盐胁迫下,2个基因的表达模式虽不相同,但在根部均受到诱导;在PEG模拟的干旱胁迫下,PsnRAV1和PsnRAV2在叶片和根部均有响应,其中在根部受到的诱导更为明显,尤以PsnRAV2的表达更为显著;此外,PsnRAV1和PsnRAV2也受到ABA的诱导,其在叶中的表达量在初期表现为上升,而后期下降。【结论】2个PsnRAVs基因与小黑杨的抗逆性密切相关,可能参与了小黑杨的非生物胁迫应答,其中PsnRAV2在胁迫下的作用更为显著。展开更多
Facial and vocal expressions are essential modalities mediating the perception of emotion and social communication. Nonetheless, currently little is known about how emotion perception and its neural substrates differ ...Facial and vocal expressions are essential modalities mediating the perception of emotion and social communication. Nonetheless, currently little is known about how emotion perception and its neural substrates differ across facial expression and vocal prosody. To clarify this issue, functional MRI scans were acquired in Study 1, in which participants were asked to discriminate the valence of emotional expression （angry, happy or neutral） from facial, vocal, or bimodal stimuli. In Study 2, we used an affective priming task （unimodal materials as primers and bimodal materials as target） and participants were asked to rate the intensity, valence, and arousal of the targets. Study 1 showed higher accuracy and shorter response latencies in the facial than in the vocal modality for a happy expression. Whole-brain analysis showed enhanced activation during facial compared to vocal emotions in the inferior temporal-occipital regions. Region of interest analysis showed a higher percentage signal change for facial than for vocal anger in the superior temporal sulcus. Study 2 showed that facial relative to vocal priming of anger had a greater influence on perceived emotion for bimodal targets, irrespective of the target valence. These findings suggest that facial expression is associated with enhanced emotion perception compared to equivalent vocal prosodies.展开更多
A permanent lymphocyte cell line of a heterozygote with Yunnanese (Aγδβ)0-thalassemia deletion, associated with an increased production of Cry globin in adult, was founded using Epstein-Barr virus transformation. T...A permanent lymphocyte cell line of a heterozygote with Yunnanese (Aγδβ)0-thalassemia deletion, associated with an increased production of Cry globin in adult, was founded using Epstein-Barr virus transformation. The hybrids of the lymphocyte cell and mouse erythroleukemia cell (MEL) were achieved and the hybrids containing human chromosome 11 were selected with the monoclonal antibody 53/6. The subclones containing only either the normal or the abnormal human chromosome 11 were separated and the expression of the human globin genes was studied. Expression of the β-globin gene, but not the Cγ and Aγ, was observed in the hybrids containing only the normal human chromosome 11, while active expression of the Cγ globin gene was observed in the hybrids containing only the abnormal human chromosome 11. These results have confirmed that the DNA deletion in the β-globin gene cluster is the cause of persistent active expression of the Cγ globin gene in the Yunnanese mutant.展开更多
基金supported by Liaoning Province Doctor Startup Fund under Grant No.20101021the Fund of the State Ethic Affairs Commissions under Grant No.10DL08AnHui Provincie Key Laboratory of Affective Computing and Advanced Intelligent Machine
文摘Discriminative Latent Model(DLM) is proposed for Multiword Expressions(MWEs) extraction in Chinese text to improve the performance of Machine Translation(MT) system such as Template Based MT(TBMT).For MT systems to become of further practical use,they need to be enhanced with MWEs processing capability.As our study towards this goal,we propose DLM,which is developed for sequence labeling task including hidden structures,to extract MWEs for MT systems.DLM combines the advantages of existing discriminative models,which can learn hidden structures in sequence labeling task.In our evaluations,DLM achieves precisions ranging up to 90.73% for some type of MWEs,which is higher than state-of-the-art discriminative models.Such results demonstrate that it is feasible to automatically identify many Chinese MWEs using our DLM tool.With MWEs processing model,BLEU score of MT system has also been increased by up to 0.3 in close test.
基金supported by the National Natural Science Foundation of China,No.81273847
文摘Preliminary basic research and clinical findings have demonstrated that electroacupuncture ther- apy exhibits positive effects in ameliorating depression. However, most studies of the underlying mechanism are at the single gene level; there are few reports regarding the mechanism at the whole-genome level. Using a rat genomic gene-chip, we profiled hippocampal gene expression changes in rats after electroacupuncture therapy. Electroacupuncture therapy alleviated depres- sion-related manifestations in the model rats. Using gene-chip analysis, we demonstrated that electroacupuncture at Baihui （DU20） and Yintang （EX-HN3） regulates the expression of 21 genes. Real-time PCR showed that the genes Vgf, lgf2, Trnp32, Loc500373, Hifla, Folrl, Nrnb, and Rtn were upregulated or downregulated in depression and that their expression tended to nor- malize after electroacupuncture therapy. These results indicate that electroacupuncture at Baihui and Yintang modulates depression by regulating the expression of particular genes.
基金supported by the MKE(The Ministry of Knowledge Economy,Korea)the ITRC(Information Technology Research Center)support program(ⅡTA-2008-C1090-0803-0006)
文摘Most of the robots are nowadays evolving and imitating human social skills to achieve sociable interaction with humans.Socially interactive robots require different characteristics than conventional robots.Likewise human-human interaction,human-robot interaction is also accompanied with emotional interaction.Therefore,the robot’s emotional expression is very important for human,especially facial expressions play an important role among the whole part of the human body.In this paper,we introduce a facial robot expression simulator FRESi.
基金supported by the National Natural Science Foundation of China(31371042 and 31671164)
文摘Facial and vocal expressions are essential modalities mediating the perception of emotion and social communication. Nonetheless, currently little is known about how emotion perception and its neural substrates differ across facial expression and vocal prosody. To clarify this issue, functional MRI scans were acquired in Study 1, in which participants were asked to discriminate the valence of emotional expression （angry, happy or neutral） from facial, vocal, or bimodal stimuli. In Study 2, we used an affective priming task （unimodal materials as primers and bimodal materials as target） and participants were asked to rate the intensity, valence, and arousal of the targets. Study 1 showed higher accuracy and shorter response latencies in the facial than in the vocal modality for a happy expression. Whole-brain analysis showed enhanced activation during facial compared to vocal emotions in the inferior temporal-occipital regions. Region of interest analysis showed a higher percentage signal change for facial than for vocal anger in the superior temporal sulcus. Study 2 showed that facial relative to vocal priming of anger had a greater influence on perceived emotion for bimodal targets, irrespective of the target valence. These findings suggest that facial expression is associated with enhanced emotion perception compared to equivalent vocal prosodies.
基金Project supported by the National Natural Science Foundation of China.
文摘A permanent lymphocyte cell line of a heterozygote with Yunnanese (Aγδβ)0-thalassemia deletion, associated with an increased production of Cry globin in adult, was founded using Epstein-Barr virus transformation. The hybrids of the lymphocyte cell and mouse erythroleukemia cell (MEL) were achieved and the hybrids containing human chromosome 11 were selected with the monoclonal antibody 53/6. The subclones containing only either the normal or the abnormal human chromosome 11 were separated and the expression of the human globin genes was studied. Expression of the β-globin gene, but not the Cγ and Aγ, was observed in the hybrids containing only the normal human chromosome 11, while active expression of the Cγ globin gene was observed in the hybrids containing only the abnormal human chromosome 11. These results have confirmed that the DNA deletion in the β-globin gene cluster is the cause of persistent active expression of the Cγ globin gene in the Yunnanese mutant.
