As a critical enzyme in secondary metabolism of plant,Phenylanlanine ammonialyase(PAL) has significant meaning to its development and strong tolerance ability against hard.A full-length cDNA of PAL gene was isolated f...As a critical enzyme in secondary metabolism of plant,Phenylanlanine ammonialyase(PAL) has significant meaning to its development and strong tolerance ability against hard.A full-length cDNA of PAL gene was isolated from Phyllostachys edulis through RT-PCR and RACE methods,and named as PePAL1(GenBank accession number:FJ195650).PePAL1 is 2 436 bp,which contains an open reading frame encoding 701 amino acids.The results of amino acid sequence analysis showed that PePAL1 had high identities with other gramineous PAL in Oryza sativa,Zea mays,Saccharum officinarum,Bambusa ventricosa,Bambusa oldhamii and Triticum aestivum,especially with PAL from O.sativa up to 93.0%.Phylogenetic analysis showed that PePAL1 and LLB1 were on different branch sites.Tissue specific expression showed that PePAL1 expressed in leaf,sheath,stem and root,much higher in stem.展开更多
隐喻是人类语言中经常出现的一种特殊现象,隐喻识别对于自然语言处理各项任务来说具有十分基础和重要的意义。针对中文领域的隐喻识别任务,该文提出了一种基于句法感知图卷积神经网络和ELECTRA的隐喻识别模型(S yntax-a ware G CN with ...隐喻是人类语言中经常出现的一种特殊现象,隐喻识别对于自然语言处理各项任务来说具有十分基础和重要的意义。针对中文领域的隐喻识别任务,该文提出了一种基于句法感知图卷积神经网络和ELECTRA的隐喻识别模型(S yntax-a ware G CN with E LECTRA,SaGE)。该模型从语言学出发,使用ELECTRA和Transformer编码器抽取句子的语义特征,将句子按照依存关系组织成一张图并使用图卷积神经网络抽取其句法特征,在此基础上对两类特征进行融合以进行隐喻识别。该模型在CCL 2018中文隐喻识别评测数据集上以85.22%的宏平均F 1值超越了此前的最佳成绩,验证了融合语义信息和句法信息对于隐喻识别任务具有重要作用。展开更多
文摘As a critical enzyme in secondary metabolism of plant,Phenylanlanine ammonialyase(PAL) has significant meaning to its development and strong tolerance ability against hard.A full-length cDNA of PAL gene was isolated from Phyllostachys edulis through RT-PCR and RACE methods,and named as PePAL1(GenBank accession number:FJ195650).PePAL1 is 2 436 bp,which contains an open reading frame encoding 701 amino acids.The results of amino acid sequence analysis showed that PePAL1 had high identities with other gramineous PAL in Oryza sativa,Zea mays,Saccharum officinarum,Bambusa ventricosa,Bambusa oldhamii and Triticum aestivum,especially with PAL from O.sativa up to 93.0%.Phylogenetic analysis showed that PePAL1 and LLB1 were on different branch sites.Tissue specific expression showed that PePAL1 expressed in leaf,sheath,stem and root,much higher in stem.
文摘隐喻是人类语言中经常出现的一种特殊现象,隐喻识别对于自然语言处理各项任务来说具有十分基础和重要的意义。针对中文领域的隐喻识别任务,该文提出了一种基于句法感知图卷积神经网络和ELECTRA的隐喻识别模型(S yntax-a ware G CN with E LECTRA,SaGE)。该模型从语言学出发,使用ELECTRA和Transformer编码器抽取句子的语义特征,将句子按照依存关系组织成一张图并使用图卷积神经网络抽取其句法特征,在此基础上对两类特征进行融合以进行隐喻识别。该模型在CCL 2018中文隐喻识别评测数据集上以85.22%的宏平均F 1值超越了此前的最佳成绩,验证了融合语义信息和句法信息对于隐喻识别任务具有重要作用。
