时间序列分析
时间序列分析 (Time Series Analysis) 包括异常检测、时间序列聚类、时间序列预测等，在日常生活中有着广泛的应用，如欺诈检测、股票预测等。
Paper List:
1. Learning Representations for Incomplete Time Series Clustering
Qianli Ma, Chuxin Chen, Sen Li, Garrison Cottrell.
AAAI Conference on Artificial Intelligence (AAAI), 2021
[Paper]
2. Joint-Label Learning by Dual Augmentation for Time Series Classification
Qianli Ma, Zhenjing Zheng, Jiawei Zheng, et al.
AAAI Conference on Artificial Intelligence (AAAI), 2021
[Paper]
3. Time Series Anomaly Detection with Multiresolution Ensemble Decoding
Lifeng Shen, Zhongzhong Yu, Qianli Ma, James T. Kwok.
AAAI Conference on Artificial Intelligence (AAAI), 2021
[Paper]
自然语言处理
自然语言处理 (NLP, Natural Language Processing) 包括隐喻检测、机器翻译、情感溯源等，在日常生活中有着广泛的应用，如聊天机器人、在线翻译、故事生成等。
Paper List:
1. Hierarchy-aware Label Semantics Matching Network for Hierarchical Text Classification.
Haibin Chen, Qianli Ma, Zhenxi Lin and Jiangyue Yan.
Annual Meeting of the Association for Computational Linguistics (ACL), 2021
[Paper]
2. A Span-based Dynamic Local Attention Model for Sequential Sentence Classification.
Xichen Shang, Qianli Ma, Zhenxi Lin, et al.
Annual Meeting of the Association for Computational Linguistics (ACL), 2021
[Paper]
3. Deformable Self-Attention for Text Classification
Qianli Ma, Jiangyue Yan, et al.
IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP), 2021
[Paper]
推荐系统
推荐系统利用网站向客户提供商品信息和建议，帮助用户决定应该购买什么产品，模拟销售人员帮助客户完成购买过程，目前已大量落地于实际应用中，如淘宝、抖音、微信视频号等。
Paper List:
1. Multi-view Denoising Graph Auto-Encoders on HeterogeneousInformation Networks for Cold-start Recommendation
Jiawei Zheng, Qianli Ma, Hao Gu, and Zhenjing Zheng
ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), 2021[Paper]
2. Embedding based Product Retrieval in Taobao Search
Sen Li, Fuyu Lv, Taiwei Jin, Guli Lin, Keping Yang, Xiaoyi Zeng, Xiaoming Wu, and Qianli Ma.
ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), 2021
[Paper]
强化学习
强化学习不同于监督学习和非监督学习，不要求预先给定任何数据，而是通过接收环境对动作的奖励（反馈）获得学习信息并更新模型参数。强化学习已在游戏、金融、电力、自动驾驶等领域落地。
量化交易系统
