Jiahui Li

Mr. Jiahui Li


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 October 2023 in Applied Sciences
Verified
Journal Article
Open access
PDF file
HWHuixin Wu
Huixin Wu
JLJiahui Li
Jiahui Li
舒李舒晴 李
舒晴 李
LHLi hanbing
Li hanbing
JMJiangtao Ma
Jiangtao Ma
YQYaqiong Qiao
Yaqiong Qiao
Location information on Twitter plays a critical role in emergency detection, event recommendation, and disaster warning. However, only a limited amount of Twitter data are geotagged. Previous research has presented various models for inferring location based on text, social relations, and contextual data, yielding highly promising results. Nonetheless, these existing methods have certain limitations that need to be addressed. Firstly, most of the existing methods overlook the role of local celebrities (well-known users in the local community) as indicators of location within the social network. Secondly, they fail to consider the associations between words in tweets, resulting in insufficiently rich features extracted from the tweets. We propose a multi-view-based location inference model called MVGeo to overcome these limitations. In the network view, our approach employs the Gaussian Mixture Model (GMM) to identify and retain local celebrities, thereby strengthening user location associations. In the tweet view, we construct a heterogeneous graph based on the co-occurrence relationship between words in tweets and the user’s mentioned relationship with the words. This allows us to fully leverage the local correlation between words and the global correlation to extract tweet features more comprehensively. Finally, we employ a modified multi-layer graph convolutional network, called Gate-GCN, to fuse the network and tweet information. This expansion of the feature space enables us to extract sample features from multiple perspectives. To demonstrate the effectiveness of MVGeo, we conduct exhaustive experimental evaluations on a publicly available dataset and compare its performance against several state-of-the-art benchmark models. The results confirm the superior performance of the proposed model.

5 December 2023
Verified
Book Chapter
Closed access
PDF file
HWHuixin Wu
Huixin Wu
JLJiahui Li
Jiahui Li
FWFupeng Wei
Fupeng Wei
MYMengfan Yang
Mengfan Yang
YWYi Wang
Yi Wang
YWYu Wang
Yu Wang