activity
20202026
most citedAnalyzing COVID-19 on Online Social Media: Trends, Sentiments and Emotions

34 citations · 152 across the 20 of their papers we have counts for

collaborators

20 papers

cs.AI2026

GrandCode: Achieving Grandmaster Level in Competitive Programming via Agentic Reinforcement Learning

Ornith Team, Xiaoya Li, Guoyin Wang +3

Competitive programming remains one of the last few human strongholds in coding against AI. The best AI system to date still underperforms the best humans competitive programming:…

cs.CV2026

LongCat-Next: Lexicalizing Modalities as Discrete Tokens

Meituan LongCat Team, Bin Xiao, Chao Wang +86

The prevailing Next-Token Prediction (NTP) paradigm has driven the success of large language models through discrete autoregressive modeling. However, contemporary multimodal syste…

cs.LG2025

CUDA-L2: Surpassing cuBLAS Performance for Matrix Multiplication through Reinforcement Learning

Songqiao Su, Xiaoya Li, Albert Wang +3

In this paper, we propose CUDA-L2, a system that combines large language models (LLMs) and reinforcement learning (RL) to automatically optimize Half-precision General Matrix Multi…

cs.LG2025

CRINN: Contrastive Reinforcement Learning for Approximate Nearest Neighbor Search

Xiaoya Li, Albert Wang, Guoyin Wang +2

Approximate nearest-neighbor search (ANNS) algorithms have become increasingly critical for recent AI applications, particularly in retrieval-augmented generation (RAG) and agent-b…

cs.AI2025★ 1 cited

CUDA-L1: Improving CUDA Optimization via Contrastive Reinforcement Learning

Xiaoya Li, Albert Wang, Guoyin Wang +2

The exponential growth in demand for GPU computing resources has created an urgent need for automated CUDA optimization strategies. While recent advances in LLMs show promise for c…

cs.CV2025

FaceID-6M: A Large-Scale, Open-Source FaceID Customization Dataset

Shuhe Wang, Xiaoya Li, Jiwei Li +8

Due to the data-driven nature of current face identity (FaceID) customization methods, all state-of-the-art models rely on large-scale datasets containing millions of high-quality…

cs.CV2025

Turn That Frown Upside Down: FaceID Customization via Cross-Training Data

Shuhe Wang, Xiaoya Li, Xiaofei Sun +4

Existing face identity (FaceID) customization methods perform well but are limited to generating identical faces as the input, while in real-world applications, users often desire…

cs.CL2024★ 7 cited

Reinforcement Learning Enhanced LLMs: A Survey

Shuhe Wang, Shengyu Zhang, Jie Zhang +7

Reinforcement learning (RL) enhanced large language models (LLMs), particularly exemplified by DeepSeek-R1, have exhibited outstanding performance. Despite the effectiveness in imp…

cs.CL2023★ 1 cited

Sim-GPT: Text Similarity via GPT Annotated Data

Shuhe Wang, Beiming Cao, Shengyu Zhang +5

Due to the lack of a large collection of high-quality labeled sentence pairs with textual similarity scores, existing approaches for Semantic Textual Similarity (STS) mostly rely o…

cs.CL2023★ 12 cited

Sentiment Analysis through LLM Negotiations

Xiaofei Sun, Xiaoya Li, Shengyu Zhang +5

A standard paradigm for sentiment analysis is to rely on a singular LLM and makes the decision in a single round under the framework of in-context learning. This framework suffers…

cs.CL2021★ 9 cited

Faster Nearest Neighbor Machine Translation

Shuhe Wang, Jiwei Li, Yuxian Meng +5

NN based neural machine translation (NN-MT) has achieved state-of-the-art results in a variety of MT tasks. One significant shortcoming of NN-MT lies in its inefficiency i…

cs.CL2021★ 6 cited

Triggerless Backdoor Attack for NLP Tasks with Clean Labels

Leilei Gan, Jiwei Li, Tianwei Zhang +6

Backdoor attacks pose a new threat to NLP models. A standard strategy to construct poisoned data in backdoor attacks is to insert triggers (e.g., rare words) into selected sentence…

cs.CL2021★ 25 cited

Interpreting Deep Learning Models in Natural Language Processing: A Review

Xiaofei Sun, Diyi Yang, Xiaoya Li +6

Neural network models have achieved state-of-the-art performances in a wide range of natural language processing (NLP) tasks. However, a long-standing criticism against neural netw…

cs.CL2021★ 18 cited

GNN-LM: Language Modeling based on Global Contexts via GNN

Yuxian Meng, Shi Zong, Xiaoya Li +4

Inspired by the notion that ``{\it to copy is easier than to memorize}``, in this work, we introduce GNN-LM, which extends the vanilla neural language model (LM) by allowing to ref…

cs.CL2021★ 5 cited

OpenViDial 2.0: A Larger-Scale, Open-Domain Dialogue Generation Dataset with Visual Contexts

Shuhe Wang, Yuxian Meng, Xiaoya Li +3

In order to better simulate the real human conversation process, models need to generate dialogue utterances based on not only preceding textual contexts but also visual contexts.…

cs.CL2021★ 5 cited

Folden: -Fold Ensemble for Out-Of-Distribution Detection

Xiaoya Li, Jiwei Li, Xiaofei Sun +5

Out-of-Distribution (OOD) detection is an important problem in natural language processing (NLP). In this work, we propose a simple yet effective framework Folden, which mimics…

cs.CL2021★ 10 cited

Defending Against Backdoor Attacks in Natural Language Generation

Xiaofei Sun, Xiaoya Li, Yuxian Meng +4

The frustratingly fragile nature of neural network models make current natural language generation (NLG) systems prone to backdoor attacks and generate malicious sequences that cou…

cs.CL2021★ 14 cited

Fast Nearest Neighbor Machine Translation

Yuxian Meng, Xiaoya Li, Xiayu Zheng +4

Though nearest neighbor Machine Translation (NN-MT) \citep{khandelwal2020nearest} has proved to introduce significant performance boosts over standard neural MT systems, it is p…

cs.CL2020★ 5 cited

Improving Robustness and Generality of NLP Models Using Disentangled Representations

Jiawei Wu, Xiaoya Li, Xiang Ao +3

Supervised neural networks, which first map an input to a single representation , and then map to the output label , have achieved remarkable success in a wide range…

cs.SI2020★ 34 cited

Analyzing COVID-19 on Online Social Media: Trends, Sentiments and Emotions

Xiaoya Li, Mingxin Zhou, Jiawei Wu +3

At the time of writing, the ongoing pandemic of coronavirus disease (COVID-19) has caused severe impacts on society, economy and people's daily lives. People constantly express the…