Concatenated Vector Representation with the Asymmetric GloVe Model

Article Concatenated Vector Representation with the Asymmetric GloVe Model Junfeng Shi *, and Jihong Li School of Modern Educational Technology, Shanxi University, Taiyuan 030006, China * Correspondence: [email protected] Received: 7 November 2023 Accepted: 31 December 2023 Published: 25 March 2025 Abstract: The GloVe model is a widely used model for word vector representation learning. The word vector trained by the model can encode some semantic and syntactic information, and the conventional GloVe model trains the word vector representation by collecting the context word within a symmetric window for a given target word. Obviously, such collection does not obtain the left/right side information between the context word and the target word, which is linguistically critical information for learning a word representation of syntactic information. Therefore, the word vector trained by the GloVe model performs poorly in syntax-based tasks such as the part-of-speech tagging task (abbreviated as the POS task) and the chunking task. In order to solve this problem, a concatenated vector representation is proposed with the asymmetric GloVe model, which distinguishes left contexts from right contexts of the target word and exhibits more syntactic similarity than the original GloVe vector representation in looking for the target word’s neighbor words. By using the syntactic test set, the concatenated vector representation performs well for the word analogy task, and the syntax-based tasks such as the POS task and the chunking task. At the same time, the dimension of the concatenated vector representation is the half dimension of the original GloVe vector representation, reducing the running time greatly.