对话是一个交互的过程,回应选择旨在根据已有对话上文选择合适的回应,是自然语言处理领域的研究热点。已有研究取得了一定的成功,但仍存在两个突出的问题:一是历史信息与备选回应间的关联关系未得到充分利用;二是对话历史的潜在语义信...对话是一个交互的过程,回应选择旨在根据已有对话上文选择合适的回应,是自然语言处理领域的研究热点。已有研究取得了一定的成功,但仍存在两个突出的问题:一是历史信息与备选回应间的关联关系未得到充分利用;二是对话历史的潜在语义信息挖掘不够。针对问题一,该文同时考虑对话的历史信息与备选回应信息,借助交叉注意力机制实现两者的软对齐,从而对它们之间的关联关系进行有效捕捉;针对问题二,一方面借助多头自注意力机制从多个不同视角捕获对话历史的潜在语义信息,另一方面借助高速路神经网络实现多种信息的有效桥接,在深度挖掘语义信息的同时保证信息的完整。在Ubuntu Corpus V1数据集上的对比实验表明了该方法的有效性,模型取得了88.66%的R_(10)@1值,90.06%的R_(10)@2值和95.15%的R_(10)@5值。展开更多
The atom-atom-anion three-body recombination(TBR)and collision induced dissociation(CID)processes of the^(3)He-^(3)He-T^(-)system at ultracold temperatures are investigated by solving the Schr¨odinger equation in...The atom-atom-anion three-body recombination(TBR)and collision induced dissociation(CID)processes of the^(3)He-^(3)He-T^(-)system at ultracold temperatures are investigated by solving the Schr¨odinger equation in the adiabatic hyperspherical representation.The variations of the TBR and CID rates with the collision energies in the ultracold temperatures are obtained.It is found that the J~Π=1~-symmetry dominates the TBR and CID processes in most of the considered collision energy range.The rate of TBR(CID)into(from)the l=1 anion is larger than those for the l=0 and l=2 anions,with the l representing the rotational quantum number of~3HeT~-.This can be understood via the nonadiabatic couplings among the different channels.展开更多
文摘对话是一个交互的过程,回应选择旨在根据已有对话上文选择合适的回应,是自然语言处理领域的研究热点。已有研究取得了一定的成功,但仍存在两个突出的问题:一是历史信息与备选回应间的关联关系未得到充分利用;二是对话历史的潜在语义信息挖掘不够。针对问题一,该文同时考虑对话的历史信息与备选回应信息,借助交叉注意力机制实现两者的软对齐,从而对它们之间的关联关系进行有效捕捉;针对问题二,一方面借助多头自注意力机制从多个不同视角捕获对话历史的潜在语义信息,另一方面借助高速路神经网络实现多种信息的有效桥接,在深度挖掘语义信息的同时保证信息的完整。在Ubuntu Corpus V1数据集上的对比实验表明了该方法的有效性,模型取得了88.66%的R_(10)@1值,90.06%的R_(10)@2值和95.15%的R_(10)@5值。
基金supported by the National Key R&D Program of China(Grant No.2018YFA0306503)the National Natural Science Foundation of China(Grant Nos.21873016,12174044,and 22103063)+1 种基金the International Cooperation Fund Project of DBJI(Grant No.ICR2105)the Fundamental Research Funds for the Central Universities(Grant No.DUT21LK08)。
文摘The atom-atom-anion three-body recombination(TBR)and collision induced dissociation(CID)processes of the^(3)He-^(3)He-T^(-)system at ultracold temperatures are investigated by solving the Schr¨odinger equation in the adiabatic hyperspherical representation.The variations of the TBR and CID rates with the collision energies in the ultracold temperatures are obtained.It is found that the J~Π=1~-symmetry dominates the TBR and CID processes in most of the considered collision energy range.The rate of TBR(CID)into(from)the l=1 anion is larger than those for the l=0 and l=2 anions,with the l representing the rotational quantum number of~3HeT~-.This can be understood via the nonadiabatic couplings among the different channels.
