1 code implementation • Findings (EMNLP) 2021 • Guoxin Yu, Jiwei Li, Ling Luo, Yuxian Meng, Xiang Ao, Qing He
In this paper, we investigate the unified ABSA task from the perspective of Machine Reading Comprehension (MRC) by observing that the aspect and the opinion terms can serve as the query and answer in MRC interchangeably.
Aspect-Based Sentiment Analysis
Aspect-Based Sentiment Analysis (ABSA)
+3
1 code implementation • IEEE International Conference on Data Mining (ICDM) 2023 • Zhao Yang, Junhong Lian, Xiang Ao
In this paper, we propose a framework Fact-Preserved Personalized News Headline Generation (short for FPG), to prompt a tradeoff between personalization and consistency.
1 code implementation • the ACM Web Conference 2025 • Junhong Lian, Xiang Ao, Xinyu Liu, Yang Liu, Qing He
Prevailing methods focus on user-oriented content preferences, but most of them overlook the fact that diverse stylistic preferences are integral to users' panoramic interests, leading to suboptimal personalization.
no code implementations • 10 Jan 2025 • Hanyu Zhang, Xiting Wang, Chengao Li, Xiang Ao, Qing He
During inference, GCAV steers the concept vector in LLMs, for example, by removing the toxicity concept vector from the activation layers.
no code implementations • 22 Nov 2024 • Yiran Qiao, Yateng Tang, Xiang Ao, Qi Yuan, Ziming Liu, Chen Shen, Xuehao Zheng
We evaluate LBSF on the financial risk assessment task using a large-scale real-world dataset.
1 code implementation • 29 Aug 2024 • Zhengqing Gao, Xiang Ao, Xu-Yao Zhang, Cheng-Lin Liu
Adapting pre-trained models to open classes is a challenging problem in machine learning.
1 code implementation • 26 Jun 2024 • Hao Shi, Weili Song, Xinting Zhang, Jiahe Shi, Cuicui Luo, Xiang Ao, Hamid Arian, Luis Seco
The complexity of financial data, characterized by its variability and low signal-to-noise ratio, necessitates advanced methods in quantitative investment that prioritize both performance and interpretability. Transitioning from early manual extraction to genetic programming, the most advanced approach in the alpha factor mining domain currently employs reinforcement learning to mine a set of combination factors with fixed weights.
1 code implementation • 22 May 2024 • Yiran Qiao, Xiang Ao, Yang Liu, Jiarong Xu, Xiaoqian Sun, Qing He
In this paper, we aim to streamline the GNN design process and leverage the advantages of Large Language Models (LLMs) to improve the performance of GNNs on downstream tasks.
1 code implementation • 8 Apr 2024 • Tianyu Chen, Yiming Zhang, Guoxin Yu, Dapeng Zhang, Li Zeng, Qing He, Xiang Ao
In this paper, we extend financial sentiment analysis~(FSA) to event-level since events usually serve as the subject of the sentiment in financial text.
1 code implementation • 25 May 2023 • Shuo Yu, Hongyan Xue, Xiang Ao, Feiyang Pan, Jia He, Dandan Tu, Qing He
In practice, a set of formulaic alphas is often used together for better modeling precision, so we need to find synergistic formulaic alpha sets that work well together.
1 code implementation • The 31st ACM International Conference on Information and Knowledge Management (CIKM) 2022 • Fuwei Zhang, Zhao Zhang, Xiang Ao, Fuzhen Zhuang, Yongjun Xu, Qing He.
In order to represent the facts happening in a specific time, temporal knowledge graph (TKG) embedding approaches are put forward.
Ranked #2 on
Link Prediction
on GDELT
1 code implementation • 30 Jun 2022 • Kuan Li, Yang Liu, Xiang Ao, Jianfeng Chi, Jinghua Feng, Hao Yang, Qing He
However, both strategies are faced with some immediate problems: raw features cannot represent various properties of nodes (e. g., structure information), and representations learned by supervised GNN may suffer from the poor performance of the classifier on the poisoned graph.
1 code implementation • 10 May 2022 • Yiqing Wu, Ruobing Xie, Yongchun Zhu, Fuzhen Zhuang, Xiang Ao, Xu Zhang, Leyu Lin, Qing He
In this work, we define the selective fairness task, where users can flexibly choose which sensitive attributes should the recommendation model be bias-free.
1 code implementation • 20 Apr 2022 • Shuokai Li, Ruobing Xie, Yongchun Zhu, Xiang Ao, Fuzhen Zhuang, Qing He
In this work, we highlight that the user's historical dialogue sessions and look-alike users are essential sources of user preferences besides the current dialogue session in CRS.
Ranked #3 on
Recommendation Systems
on ReDial
(Recall@50 metric)
1 code implementation • 20 Mar 2022 • Yiqing Wu, Ruobing Xie, Yongchun Zhu, Xiang Ao, Xin Chen, Xu Zhang, Fuzhen Zhuang, Leyu Lin, Qing He
We argue that MBR models should: (1) model the coarse-grained commonalities between different behaviors of a user, (2) consider both individual sequence view and global graph view in multi-behavior modeling, and (3) capture the fine-grained differences between multiple behaviors of a user.
no code implementations • 27 Dec 2021 • Fuwei Zhang, Zhao Zhang, Xiang Ao, Dehong Gao, Fuzhen Zhuang, Yi Wei, Qing He
The proposed model encodes the textual information in queries, documents and the KG with multilingual BERT, and incorporates the KG information in the query-document matching process with a hierarchical information fusion mechanism.
no code implementations • 29 Sep 2021 • Mengda Huang, Feiyang Pan, Jia He, Xiang Ao, Qing He
Constrained Reinforcement Learning (CRL) burgeons broad interest in recent years, which pursues both goals of maximizing long-term returns and constraining costs.
no code implementations • EMNLP 2021 • Yuxian Meng, Xiang Ao, Qing He, Xiaofei Sun, Qinghong Han, Fei Wu, Chun Fan, Jiwei Li
A long-standing issue with paraphrase generation is how to obtain reliable supervision signals.
no code implementations • EMNLP 2021 • Chun Fan, Jiwei Li, Xiang Ao, Fei Wu, Yuxian Meng, Xiaofei Sun
The proposed pruning strategy offers merits over weight-based pruning techniques: (1) it avoids irregular memory access since representations and matrices can be squeezed into their smaller but dense counterparts, leading to greater speedup; (2) in a manner of top-down pruning, the proposed method operates from a more global perspective based on training signals in the top layer, and prunes each layer by propagating the effect of global signals through layers, leading to better performances at the same sparsity level.
1 code implementation • 13 Aug 2021 • Haoming Li, Feiyang Pan, Xiang Ao, Zhao Yang, Min Lu, Junwei Pan, Dapeng Liu, Lei Xiao, Qing He
The delayed feedback problem is one of the imperative challenges in online advertising, which is caused by the highly diversified feedback delay of a conversion varying from a few minutes to several days.
1 code implementation • ACL 2021 • Xiang Ao, Xiting Wang, Ling Luo, Ying Qiao, Qing He, Xing Xie
To build up a benchmark for this problem, we publicize a large-scale dataset named PENS (PErsonalized News headlineS).
no code implementations • 18 Jul 2021 • Feiyang Pan, Haoming Li, Xiang Ao, Wei Wang, Yanrong Kang, Ao Tan, Qing He
The proposed method is efficient as it can make decisions on-the-fly by utilizing only one randomly chosen model, but is also effective as we show that it can be viewed as a non-Bayesian approximation of Thompson sampling.
3 code implementations • ACL 2021 • Zijun Sun, Xiaoya Li, Xiaofei Sun, Yuxian Meng, Xiang Ao, Qing He, Fei Wu, Jiwei Li
Recent pretraining models in Chinese neglect two important aspects specific to the Chinese language: glyph and pinyin, which carry significant syntax and semantic information for language understanding.
1 code implementation • 21 Jun 2021 • Binzong Geng, Min Yang, Fajie Yuan, Shupeng Wang, Xiang Ao, Ruifeng Xu
In this paper, we propose a novel iterative network pruning with uncertainty regularization method for lifelong sentiment classification (IPRLS), which leverages the principles of network pruning and weight regularization.
1 code implementation • 3 Jun 2021 • Xiaofei Sun, Xiaoya Li, Yuxian Meng, Xiang Ao, Lingjuan Lyu, Jiwei Li, Tianwei Zhang
The frustratingly fragile nature of neural network models make current natural language generation (NLG) systems prone to backdoor attacks and generate malicious sequences that could be sexist or offensive.
no code implementations • The Thirty-Fifth AAAI Conference on Artificial Intelligence 2021 • Chunpu Xu, Min Yang, Chengming Li, Ying Shen, Xiang Ao, and Ruifeng Xu
Finally, we integrate the imaginary concepts and relational knowledge to generate human-like story based on the original semantics of images.
Ranked #2 on
Visual Storytelling
on VIST
no code implementations • 17 May 2021 • Xiaofei Sun, Yuxian Meng, Xiang Ao, Fei Wu, Tianwei Zhang, Jiwei Li, Chun Fan
The proposed framework is based on the core idea that the meaning of a sentence should be defined by its contexts, and that sentence similarity can be measured by comparing the probabilities of generating two sentences given the same context.
1 code implementation • The Web Conference 2021 • Yang Liu1, Xiang Ao, Zidi Qin, Jianfeng Chi, Jinghua Feng, Hao Yang, Qing He
Graph-based fraud detection approaches have escalated lots of attention recently due to the abundant relational information of graph-structured data, which may be beneficial for the detection of fraudsters.
Ranked #5 on
Fraud Detection
on Amazon-Fraud
no code implementations • COLING 2020 • Chunpu Xu, Yu Li, Chengming Li, Xiang Ao, Min Yang, Jinwen Tian
In this paper, we propose an Interactive key-value Memory- augmented Attention model for image Paragraph captioning (IMAP) to keep track of the attention history (salient objects coverage information) along with the update-chain of the decoder state and therefore avoid generating repetitive or incomplete image descriptions.
no code implementations • COLING 2020 • Jianfeng Liu, Ling Luo, Xiang Ao, Yan Song, Haoran Xu, Jian Ye
Multi-source neural machine translation aims to translate from parallel sources of information (e. g. languages, images, etc.)
1 code implementation • Findings of the Association for Computational Linguistics 2020 • Yuyang Nie, Yuanhe Tian, Yan Song, Xiang Ao, Xiang Wan
Named entity recognition (NER) is highly sensitive to sentential syntactic and semantic properties where entities may be extracted according to how they are used and placed in the running text.
Ranked #3 on
Named Entity Recognition (NER)
on WNUT 2016
Chinese Named Entity Recognition
named-entity-recognition
+2
no code implementations • 21 Sep 2020 • Jiawei Wu, Xiaoya Li, Xiang Ao, Yuxian Meng, Fei Wu, Jiwei Li
We show that models trained with the proposed criteria provide better robustness and domain adaptation ability in a wide range of supervised learning tasks.
1 code implementation • ACL 2020 • Yuanhe Tian, Yan Song, Xiang Ao, Fei Xia, Xiaojun Quan, Tong Zhang, Yonggang Wang
Chinese word segmentation (CWS) and part-of-speech (POS) tagging are important fundamental tasks for Chinese language processing, where joint learning of them is an effective one-step solution for both tasks.
no code implementations • 23 Dec 2019 • Chi Xu, Hao Feng, Guoxin Yu, Min Yang, Xiting Wang, Xiang Ao
In this paper, we aim to improve ATSA by discovering the potential aspect terms of the predicted sentiment polarity when the aspect terms of a test sentence are unknown.
1 code implementation • IJCNLP 2019 • Qingnan Jiang, Lei Chen, Ruifeng Xu, Xiang Ao, Min Yang
Aspect-based sentiment analysis (ABSA) has attracted increasing attention recently due to its broad applications.
Ranked #4 on
Aspect-Based Sentiment Analysis (ABSA)
on MAMS
Aspect-Based Sentiment Analysis
Aspect-Based Sentiment Analysis (ABSA)
+1
1 code implementation • IJCNLP 2019 • Ling Luo, Xiang Ao, Yan Song, Feiyang Pan, Min Yang, Qing He
In this work, we re-examine the problem of extractive text summarization for long documents.
Ranked #8 on
Extractive Text Summarization
on CNN / Daily Mail
no code implementations • IJCAI 2019 • Ling Luo, Xiang Ao, Yan Song, Jinyao Li, Xiaopeng Yang, Qing He, Dong Yu
Aspect extraction relies on identifying aspects by discovering coherence among words, which is challenging when word meanings are diversified and processing on short texts.
Aspect Extraction
Aspect Term Extraction and Sentiment Classification
+1
no code implementations • 26 May 2019 • Feiyang Pan, Xiang Ao, Pingzhong Tang, Min Lu, Dapeng Liu, Lei Xiao, Qing He
It is often observed that the probabilistic predictions given by a machine learning model can disagree with averaged actual outcomes on specific subsets of data, which is also known as the issue of miscalibration.
1 code implementation • 25 Apr 2019 • Feiyang Pan, Shuokai Li, Xiang Ao, Pingzhong Tang, Qing He
We propose Meta-Embedding, a meta-learning-based approach that learns to generate desirable initial embeddings for new ad IDs.
no code implementations • 22 Aug 2018 • Ganbin Zhou, Rongyu Cao, Xiang Ao, Ping Luo, Fen Lin, Leyu Lin, Qing He
Additionally, a "low-level sharing, high-level splitting" structure of CNN is designed to handle the documents from different content domains.
no code implementations • 19 May 2018 • Xiang Ao, Yang Liu, Zhen Huang, Luo Zuo, Qing He
An effective technique for filtering free-rider episodes is using a partition model to divide an episode into two consecutive subepisodes and comparing the observed support of such episode with its expected support under the assumption that these two subepisodes occur independently.