Extracting Semantic Orientations of Words using Spin Model

Extracting Semantic Orientations of Words using Spin Model
复制标题

DOI:
10.3115/1219840.1219857
复制
发表时间:
2005-06
期刊:
--
影响因子:
--
通讯作者:
Hiroya Takamura;Takashi Inui;M. Okumura
Hiroya Takamura;Takashi Inui;M. Okumura
中科院分区:
其他
文献类型:
--
作者:
Hiroya Takamura;Takashi Inui;M. Okumura

文献摘要

被引文献

相似文献

我们提出了一种提取词的语义方向的方法:可取的或不可取的。将语义取向视为电子的自旋,我们使用平均场近似来计算系统的近似概率函数,而不是难以处理的实际概率函数。我们还提出了一个基于磁化强度的参数选择准则。在少量种子词的情况下,该方法在英语词汇实验中提取语义方向的准确率较高。该结果可与有史以来报告的最佳价值相媲美。
We propose a method for extracting semantic orientations of words: desirable or undesirable. Regarding semantic orientations as spins of electrons, we use the mean field approximation to compute the approximate probability function of the system instead of the intractable actual probability function. We also propose a criterion for parameter selection on the basis of magnetization. Given only a small number of seed words, the proposed method extracts semantic orientations with high accuracy in the experiments on English lexicon. The result is comparable to the best value ever reported.