no code implementations • ECCV 2020 • Jian Gao, Yang Hua, Guosheng Hu, Chi Wang, Neil M. Robertson
Distributional uncertainty exists broadly in many real-world applications, one of which in the form of domain discrepancy.
no code implementations • 19 Feb 2025 • Michael Luo, Xiaoxiang Shi, Colin Cai, Tianjun Zhang, Justin Wong, Yichuan Wang, Chi Wang, Yanping Huang, Zhifeng Chen, Joseph E. Gonzalez, Ion Stoica
Large language model (LLM) applications are evolving beyond simple chatbots into dynamic, general-purpose agentic programs, which scale LLM calls and output tokens to help AI agents reason, explore, and solve complex tasks.
1 code implementation • 18 Feb 2025 • Tvrtko Sternak, Davor Runje, Dorian Granoša, Chi Wang
We define prompt leakage as a critical threat to secure LLM deployment and introduce a framework for testing the robustness of LLMs using agentic teams.
no code implementations • 10 Feb 2025 • Shuli Wang, Xue Wei, Senjie Kou, Chi Wang, Wenshuai Chen, Qi Tang, Yinhua Zhu, Xiong Xiao, Xingxing Wang
To address these issues, we propose a utilizing Neighbor Lists model for Generative Reranking (NLGR), which aims to improve the performance of the generator in the combinatorial space.
no code implementations • 23 Dec 2024 • Jiamin Xu, Yuxin Zheng, Zelong Li, Chi Wang, Renshu Gu, Weiwei Xu, Gang Xu
The cross-dataset evaluation further demonstrates that our method generalizes effectively to unseen data, enhancing the applicability of shadow removal methods.
no code implementations • 16 Nov 2024 • Guojun Lei, Chi Wang, Hong Li, Rong Zhang, Yikai Wang, Weiwei Xu
We present a unified controllable video generation approach AnimateAnything that facilitates precise and consistent video manipulation across various conditions, including camera trajectories, text prompts, and user motion annotations.
no code implementations • 3 Nov 2024 • Shaokun Zhang, Jieyu Zhang, Dujian Ding, Mirian Hipolito Garcia, Ankur Mallick, Daniel Madrigal, Menglin Xia, Victor Rühle, Qingyun Wu, Chi Wang
Recent advancements have enabled Large Language Models (LLMs) to function as agents that can perform actions using external tools.
1 code implementation • 4 Oct 2024 • Yongchao Chen, Harsh Jhamtani, Srinagesh Sharma, Chuchu Fan, Chi Wang
Textual reasoning has inherent limitations in solving tasks with challenges in math, logics, optimization, and searching, which is unlikely to be solved by simply scaling up the model and data size.
no code implementations • 30 Sep 2024 • Wenyue Hua, Mengting Wan, Shashank Vadrevu, Ryan Nadel, Yongfeng Zhang, Chi Wang
Agents, as user-centric tools, are increasingly deployed for human task delegation, assisting with a broad spectrum of requests by generating thoughts, engaging with user proxies, and producing action plans.
1 code implementation • 9 Aug 2024 • Victor Dibia, Jingya Chen, Gagan Bansal, Suff Syed, Adam Fourney, Erkang Zhu, Chi Wang, Saleema Amershi
Multi-agent systems, where multiple agents (generative AI models + tools) collaborate, are emerging as an effective pattern for solving long-running, complex tasks in numerous domains.
1 code implementation • 29 May 2024 • Linxin Song, Jiale Liu, Jieyu Zhang, Shaokun Zhang, Ao Luo, Shijian Wang, Qingyun Wu, Chi Wang
Leveraging multiple large language model (LLM) agents has shown to be a promising approach for tackling complex tasks, while the effective design of multiple agents for a particular application remains an art.
no code implementations • 3 May 2024 • Negar Arabzadeh, Siqing Huo, Nikhil Mehta, Qinqyun Wu, Chi Wang, Ahmed Awadallah, Charles L. A. Clarke, Julia Kiseleva
The rapid development of Large Language Models (LLMs) has led to a surge in applications that facilitate collaboration among multiple agents, assisting humans in their daily tasks.
no code implementations • 22 Apr 2024 • Dujian Ding, Ankur Mallick, Chi Wang, Robert Sim, Subhabrata Mukherjee, Victor Ruhle, Laks V. S. Lakshmanan, Ahmed Hassan Awadallah
Large language models (LLMs) excel in most NLP tasks but also require expensive cloud servers for deployment due to their size, while smaller models that can be deployed on lower cost (e. g., edge) devices, tend to lag behind in terms of response quality.
no code implementations • 15 Apr 2024 • Chi Wang, Junming Huang, Rong Zhang, Qi Wang, Haotian Yang, Haibin Huang, Chongyang Ma, Weiwei Xu
SDS boosts GANs with more generative modes, while GANs promote more efficient optimization of SDS.
no code implementations • 29 Mar 2024 • Wentao Wu, Chi Wang
We further extend our study from tuning a single query to tuning a workload with multiple queries, and we call this generalized problem budget-aware workload tuning (WT), which aims for minimizing the execution time of the entire workload.
1 code implementation • 20 Mar 2024 • Zhengqing Yuan, Yixin Liu, Yihan Cao, Weixiang Sun, Haolong Jia, Ruoxi Chen, Zhaoxu Li, Bin Lin, Li Yuan, Lifang He, Chi Wang, Yanfang Ye, Lichao Sun
Existing open-source methods struggle to achieve comparable performance, often hindered by ineffective agent collaboration and inadequate training data quality.
3 code implementations • 17 Mar 2024 • Yiran Wu, Tianwei Yue, Shaokun Zhang, Chi Wang, Qingyun Wu
In StateFlow, we distinguish between "process grounding" (via state and state transitions) and "sub-task solving" (through actions within a state), enhancing control and interpretability of the task-solving procedure.
1 code implementation • 17 Feb 2024 • Shaokun Zhang, Jieyu Zhang, Jiale Liu, Linxin Song, Chi Wang, Ranjay Krishna, Qingyun Wu
Researchers and practitioners have recently reframed powerful Large Language Models (LLMs) as agents, enabling them to automate complex tasks largely via the use of specialized functions.
no code implementations • 14 Feb 2024 • Negar Arabzadeh, Julia Kiseleva, Qingyun Wu, Chi Wang, Ahmed Awadallah, Victor Dibia, Adam Fourney, Charles Clarke
The rapid development in the field of Large Language Models (LLMs) has led to a surge in applications that facilitate collaboration among multiple agents to assist humans in their daily tasks.
2 code implementations • ICCV 2023 • Guanxiong Sun, Chi Wang, Zhaoyu Zhang, Jiankang Deng, Stefanos Zafeiriou, Yang Hua
Then, these video prompts are prepended to the patch embeddings of the current frame as the updated input for video feature extraction.
1 code implementation • 3 Oct 2023 • Jieyu Zhang, Ranjay Krishna, Ahmed H. Awadallah, Chi Wang
Today, users ask Large language models (LLMs) as assistants to answer queries that require external knowledge; they ask about the weather in a specific city, about stock prices, and even about where specific locations are within their neighborhood.
1 code implementation • 16 Aug 2023 • Qingyun Wu, Gagan Bansal, Jieyu Zhang, Yiran Wu, Beibin Li, Erkang Zhu, Li Jiang, Xiaoyun Zhang, Shaokun Zhang, Jiale Liu, Ahmed Hassan Awadallah, Ryen W White, Doug Burger, Chi Wang
AutoGen is an open-source framework that allows developers to build LLM applications via multiple agents that can converse with each other to accomplish tasks.
no code implementations • 12 Jul 2023 • Yihan Cao, Yanbin Kang, Chi Wang, Lichao Sun
Large language models (LLMs) are initially pretrained for broad capabilities and then finetuned with instruction-following datasets to improve their performance in interacting with humans.
2 code implementations • 2 Jun 2023 • Yiran Wu, Feiran Jia, Shaokun Zhang, Hangyu Li, Erkang Zhu, Yue Wang, Yin Tat Lee, Richard Peng, Qingyun Wu, Chi Wang
Employing Large Language Models (LLMs) to address mathematical problems is an intriguing research endeavor, considering the abundance of math problems expressed in natural language across numerous science and engineering fields.
no code implementations • 28 May 2023 • Shaokun Zhang, Yiran Wu, Zhonghua Zheng, Qingyun Wu, Chi Wang
In this work, we propose a hyperparameter optimization method named \emph{HyperTime} to find hyperparameters robust to potential temporal distribution shifts in the unseen test data.
1 code implementation • CVPR 2023 • Chi Wang, Min Zhou, Tiezheng Ge, Yuning Jiang, Hujun Bao, Weiwei Xu
Content and style disentanglement is an effective way to achieve few-shot font generation.
3 code implementations • 8 Mar 2023 • Chi Wang, Susan Xueqing Liu, Ahmed H. Awadallah
Large Language Models (LLMs) have sparked significant interest in their generative capabilities, leading to the development of various commercial applications.
no code implementations • 4 Aug 2022 • Yi-Wei Chen, Chi Wang, Amin Saied, Rui Zhuang
Deploying machine learning models requires high model quality and needs to comply with application constraints.
no code implementations • 20 Feb 2022 • Moe Kayali, Chi Wang
Automatic machine learning (AutoML) is a key enabler of the mass deployment of the next generation of machine learning systems.
no code implementations • 29 Nov 2021 • Benjamin Spector, Andreas Kipf, Kapil Vaidya, Chi Wang, Umar Farooq Minhas, Tim Kraska
RSS achieves this by using the minimal string prefix to sufficiently distinguish the data unlike most learned approaches which index the entire string.
no code implementations • 11 Nov 2021 • Qingyun Wu, Chi Wang
In this work, we propose an Automated Machine Learning (AutoML) system to search for models not only with good prediction accuracy but also fair.
1 code implementation • 1 Oct 2021 • Chi Wang, Yulin Shen, Luping Ji
In recent years, transformer structures have been widely applied in image captioning with impressive performance.
1 code implementation • ACL 2021 • Xueqing Liu, Chi Wang
We find that using the same time budget, HPO often fails to outperform grid search due to two reasons: insufficient time budget and overfitting.
1 code implementation • 9 Jun 2021 • Qingyun Wu, Chi Wang, John Langford, Paul Mineiro, Marco Rossi
We propose the ChaCha (Champion-Challengers) algorithm for making an online choice of hyperparameters in online learning settings.
1 code implementation • 24 May 2021 • Yunke Zhang, Chi Wang, Miaomiao Cui, Peiran Ren, Xuansong Xie, Xian-Sheng Hua, Hujun Bao, QiXing Huang, Weiwei Xu
Experimental results show that our method can generate high-quality alpha mattes for various videos featuring appearance change, occlusion, and fast motion.
1 code implementation • 4 Feb 2021 • Chi Wang, Yunke Zhang, Miaomiao Cui, Peiran Ren, Yin Yang, Xuansong Xie, Xiansheng Hua, Hujun Bao, Weiwei Xu
This paper proposes a novel active boundary loss for semantic segmentation.
no code implementations • ICLR 2021 • Minjia Zhang, Menghao Li, Chi Wang, Mingqin Li
Recently, the DL compiler, together with Learning to Compile has proven to be a powerful technique for optimizing deep learning models.
no code implementations • ICLR 2021 • Chi Wang, Qingyun Wu, Silu Huang, Amin Saied
We study the problem of using low cost to search for hyperparameter configurations in a large search space with heterogeneous evaluation cost and model quality.
no code implementations • NeurIPS 2020 • Menghao Li, Minjia Zhang, Chi Wang, Mingqin Li
Deep learning models are computationally intense, and implementations often have to be highly optimized by experts or hardware vendors to be usable in practice.
no code implementations • NeurIPS 2020 • Jiezhong Qiu, Chi Wang, Ben Liao, Richard Peng, Jie Tang
Our result gives the first bound on the convergence rate of the co-occurrence matrix and the first sample complexity analysis in graph representation learning.
1 code implementation • ICML 2020 • Matthew Fahrbach, Gramoz Goranci, Richard Peng, Sushant Sachdeva, Chi Wang
As computing Schur complements is expensive, we give a nearly-linear time algorithm that generates a coarsened graph on the relevant vertices that provably matches the Schur complement in expectation in each iteration.
1 code implementation • 4 May 2020 • Qingyun Wu, Chi Wang, Silu Huang
To address this problem, we develop a new cost-frugal HPO solution.
no code implementations • 22 Apr 2020 • Zongheng Yang, Badrish Chandramouli, Chi Wang, Johannes Gehrke, Yi-Nan Li, Umar Farooq Minhas, Per-Åke Larson, Donald Kossmann, Rajeev Acharya
For a given workload, however, such techniques are unable to optimize for the important metric of the number of blocks accessed by a query.
no code implementations • 3 Apr 2020 • Lu Chen, Boer Lv, Chi Wang, Su Zhu, Bowen Tan, Kai Yu
For multi-domain DST, the data sparsity problem is also a major obstacle due to the increased number of state candidates.
Ranked #12 on
Multi-domain Dialogue State Tracking
on MULTIWOZ 2.1
3 code implementations • 26 Jan 2020 • Jiaming Shen, Zhihong Shen, Chenyan Xiong, Chi Wang, Kuansan Wang, Jiawei Han
Taxonomies consist of machine-interpretable semantics and provide valuable knowledge for many web applications.
2 code implementations • 12 Nov 2019 • Chi Wang, Qingyun Wu, Markus Weimer, Erkang Zhu
We study the problem of using low computational cost to automate the choices of learners and hyperparameters for an ad-hoc training dataset and error metric, by conducting trials of different configurations on the given training data.
1 code implementation • 26 Jun 2019 • Jiezhong Qiu, Yuxiao Dong, Hao Ma, Jian Li, Chi Wang, Kuansan Wang, Jie Tang
Previous research shows that 1) popular network embedding benchmarks, such as DeepWalk, are in essence implicitly factorizing a matrix with a closed form, and 2)the explicit factorization of such matrix generates more powerful embeddings than existing methods.
no code implementations • 21 May 2019 • Jialin Ding, Umar Farooq Minhas, JIA YU, Chi Wang, Jaeyoung Do, Yi-Nan Li, Hantian Zhang, Badrish Chandramouli, Johannes Gehrke, Donald Kossmann, David Lomet, Tim Kraska
The original work by Kraska et al. shows that a learned index beats a B+Tree by a factor of up to three in search time and by an order of magnitude in memory footprint.
no code implementations • Proceedings of the VLDB Endowment 2019 • Anshuman Dutt, Chi Wang, Azade Nazi, Srikanth Kandula, Vivek Narasayya, Surajit Chaudhuri
Query optimizers depend on selectivity estimates of query predicates to produce a good execution plan.
no code implementations • 8 Nov 2018 • Silu Huang, Chi Wang, Bolin Ding, Surajit Chaudhuri
A machine learning configuration refers to a combination of preprocessor, learner, and hyperparameters.
no code implementations • NeurIPS 2017 • Honglei Zhuang, Chi Wang, Yifan Wang
Outlier detection is a powerful method to narrow down the attention to a few objects after the data for them are collected.
no code implementations • EMNLP 2017 • Honglei Zhuang, Chi Wang, Fangbo Tao, Lance Kaplan, Jiawei Han
A document outlier is a document that substantially deviates in semantics from the majority ones in a corpus.
no code implementations • 24 Jun 2014 • Ahmed El-Kishky, Yanglei Song, Chi Wang, Clare Voss, Jiawei Han
Our solution combines a novel phrase mining framework to segment a document into single and multi-word phrases, and a new topic model that operates on the induced document partition.
no code implementations • 13 Mar 2014 • Chi Wang, Xueqing Liu, Yanglei Song, Jiawei Han
Automated generation of high-quality topical hierarchies for a text collection is a dream problem in knowledge engineering with many valuable applications.
no code implementations • 3 Jun 2013 • Marina Danilevsky, Chi Wang, Nihit Desai, Jingyi Guo, Jiawei Han
We introduce KERT (Keyphrase Extraction and Ranking by Topic), a framework for topical keyphrase generation and ranking.