Cyberbullying ends here: Towards robust detection of cyberbullying in social media

M Yao, C Chelmis, DS Zois - The World Wide Web Conference, 2019 - dl.acm.org
The potentially detrimental effects of cyberbullying have led to the development of numerous
automated, data-driven approaches, with emphasis on classification accuracy …

Stochastic expectation maximization with variance reduction

J Chen, J Zhu, YW Teh, T Zhang - Advances in Neural …, 2018 - proceedings.neurips.cc
Expectation-Maximization (EM) is a popular tool for learning latent variable models, but the
vanilla batch EM does not scale to large data sets because the whole data set is needed at …

Scalable inference for logistic-normal topic models

J Chen, J Zhu, Z Wang, X Zheng… - Advances in neural …, 2013 - proceedings.neurips.cc
Logistic-normal topic models can effectively discover correlation structures among latent
topics. However, their inference remains a challenge because of the non-conjugacy …

Integrating topic and latent factors for scalable personalized review-based rating prediction

W Zhang, J Wang - IEEE Transactions on Knowledge and Data …, 2016 - ieeexplore.ieee.org
Personalized review-based rating prediction, a newly emerged research problem, aims at
inferring users' ratings over their unrated items using existing reviews and corresponding …

Sparsemax and relaxed wasserstein for topic sparsity

T Lin, Z Hu, X Guo - Proceedings of the twelfth ACM international …, 2019 - dl.acm.org
Topic sparsity refers to the observation that individual documents usually focus on several
salient topics instead of covering a wide variety of topics, and a real topic adopts a narrow …

Dynamic, incremental, and continuous detection of cyberbullying in online social media

C Chelmis, DS Zois - ACM Transactions on the Web (TWEB), 2021 - dl.acm.org
The potentially detrimental effects of cyberbullying have led to the development of numerous
automated, data-driven approaches, with emphasis on classification accuracy …

Dynamic online HDP model for discovering evolutionary topics from Chinese social texts

X Fu, J Li, K Yang, L Cui, L Yang - Neurocomputing, 2016 - Elsevier
User-generated content such as online reviews in social media evolve rapidly over time. To
better understand the social media content, users not only want to examine what the topics …

[BOOK][B] Machine learning and knowledge discovery in databases

HBK Kersting, SNF Železný - 2013 - Springer
These are the proceedings of the 2013 edition of the European Conference on Machine
Learning and Principles and Practice of Knowledge Discovery in Databases, or ECML …

Elastic responding machine for dialog generation with dynamically mechanism selecting

G Zhou, P Luo, Y **ao, F Lin, B Chen… - Proceedings of the AAAI …, 2018 - ojs.aaai.org
Neural models aiming at generating meaningful and diverse response is attracting
increasing attention over recent years. For a given post, the conventional encoder-decoder …

Sparse multi-modal topical coding for image annotation

L Song, M Luo, J Liu, L Zhang, B Qian, MH Li, Q Zheng - Neurocomputing, 2016 - Elsevier
Image annotation plays a significant role in large scale image understanding, indexing and
retrieval. The Probability Topic Models (PTMs) attempt to address this issue by learning …