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  1. No Access

    Article

    Social bot detection on Twitter: robustness evaluation and improvement

    Online social networks are easily exploited by social bots. Although the current models for detecting social bots show promising results, they mainly rely on Graph Neural Networks (GNNs), which have been prove...

    Anan Liu, Yanwei **e, Lanjun Wang, Guoqing **, Junbo Guo, Jun Li in Multimedia Systems (2024)

  2. No Access

    Article

    Improving text-image cross-modal retrieval with contrastive loss

    Text-image retrieval task has attracted extensive attention nowadays. Due to the different feature distributions, the performance of this task suffers from the large modal discrepancy. Most retrieval methods m...

    Chumeng Zhang, Yue Yang, Junbo Guo, Guoqing **, Dan Song, An An Liu in Multimedia Systems (2023)

  3. No Access

    Article

    SMPC: boosting social media popularity prediction with caption

    Social media popularity prediction refers to using multi-modal content to predict the popularity of a post offered by an internet user. It is an effective way to explore advanced forecasting trends and make mo...

    An-An Liu, **aowen Wang, Ning Xu, **g Liu, Yuting Su, Quan Zhang… in Multimedia Systems (2023)

  4. No Access

    Article

    Closed-loop reasoning with graph-aware dense interaction for visual dialog

    Visual dialog is one attractive vision-language task to predict correct answer according to the given question, dialog history and image. Although researchers have offered diversified solutions to contact text...

    An-An Liu, Guokai Zhang, Ning Xu, Junbo Guo, Guoqing **, Xuanya Li in Multimedia Systems (2022)

  5. No Access

    Chapter

    Exploring the Role of Visual Content in Fake News Detection

    The increasing popularity of social media promotes the proliferation of fake news, which has caused significant negative societal effects. Therefore, fake news detection on social media has recently become an ...

    Juan Cao, Peng Qi, Qiang Sheng, Tianyun Yang… in Disinformation, Misinformation, and Fake N… (2020)

  6. No Access

    Chapter and Conference Paper

    Multi-classifier Combination for Translation Error Detection

    This paper proposes a multi-classifier combination strategy to improve translation error detection performance for statistical machine translation (SMT). Specifically, two different classifiers – Maximum Entro...

    **hua Du, Junbo Guo, Sha Wang, **yuan Zhang in Chinese Computational Linguistics and Natu… (2013)

  7. No Access

    Chapter and Conference Paper

    Stripe Model: An Efficient Method to Detect Multi-form Stripe Structures

    We present a general mathematical model for multiple forms of stripes. Based on the model, we propose a method to detect stripes built on scale-space. This method generates difference of Gaussian (DoG) maps by...

    Yi Liu, Dongming Zhang, Junbo Guo, Shouxun Lin in Advances in Multimedia Modeling (2013)

  8. No Access

    Chapter and Conference Paper

    Discriminative Latent Variable Based Classifier for Translation Error Detection

    This paper presents a discriminative latent variable model (DPLVM) based classifier for improving the translation error detection performance for statistical machine translation (SMT). It uses latent variables...

    **hua Du, Junbo Guo, Fei Zhao in Natural Language Processing and Chinese Computing (2013)

  9. No Access

    Chapter and Conference Paper

    VTrans: A Distributed Video Transcoding Platform

    This demo presents a distributed video transcoding platform named VTrans, which utilizes the technology of distributed video transcoding. It can realize the fast transcoding of videos. The fast video transcodi...

    Zhe Ouyang, Feng Dai, Junbo Guo, Yongdong Zhang in Advances in Multimedia Modeling (2013)

  10. No Access

    Chapter and Conference Paper

    Bag of Spatio-temporal Synonym Sets for Human Action Recognition

    Recently, bag of spatio-temporal local features based methods have received significant attention in human action recognition. However, it remains a big challenge to overcome intra-class variations in cases of...

    Lin Pang, Juan Cao, Junbo Guo, Shouxun Lin, Yan Song in Advances in Multimedia Modeling (2010)