Search Results for author: Liming Zhu

Found 43 papers, 9 papers with code

Prompt Perturbation in Retrieval-Augmented Generation based Large Language Models

no code implementations11 Feb 2024 Zhibo Hu, Chen Wang, Yanfeng Shu, Helen, Paik, Liming Zhu

In this work, we find that the insertion of even a short prefix to the prompt leads to the generation of outputs far away from factually correct answers.

Retrieval Text Generation

HCVP: Leveraging Hierarchical Contrastive Visual Prompt for Domain Generalization

no code implementations18 Jan 2024 Guanglin Zhou, Zhongyi Han, Shiming Chen, Biwei Huang, Liming Zhu, Tongliang Liu, Lina Yao, Kun Zhang

Domain Generalization (DG) endeavors to create machine learning models that excel in unseen scenarios by learning invariant features.

Contrastive Learning Domain Generalization

Navigating Privacy and Copyright Challenges Across the Data Lifecycle of Generative AI

no code implementations30 Nov 2023 Dawen Zhang, Boming Xia, Yue Liu, Xiwei Xu, Thong Hoang, Zhenchang Xing, Mark Staples, Qinghua Lu, Liming Zhu

The advent of Generative AI has marked a significant milestone in artificial intelligence, demonstrating remarkable capabilities in generating realistic images, texts, and data patterns.

Data Poisoning Machine Unlearning

Towards Responsible Generative AI: A Reference Architecture for Designing Foundation Model based Agents

no code implementations22 Nov 2023 Qinghua Lu, Liming Zhu, Xiwei Xu, Zhenchang Xing, Stefan Harrer, Jon Whittle

Foundation models, such as large language models (LLMs), have been widely recognised as transformative AI technologies due to their capabilities to understand and generate content, including plans with reasoning capabilities.

Language Modelling Large Language Model

Local Differential Privacy for Smart Meter Data Sharing

no code implementations8 Nov 2023 Yashothara Shanmugarasa, M. A. P. Chamikara, Hye-Young Paik, Salil S. Kanhere, Liming Zhu

In this paper, we propose a novel LDP approach (named LDP-SmartEnergy) that utilizes randomized response techniques with sliding windows to facilitate the sharing of appliance-level energy consumption data over time while not revealing individual users' appliance usage patterns.

energy management Management

Pop Quiz! Do Pre-trained Code Models Possess Knowledge of Correct API Names?

no code implementations14 Sep 2023 Terry Yue Zhuo, Xiaoning Du, Zhenchang Xing, Jiamou Sun, Haowei Quan, Li Li, Liming Zhu

The correctness and unambiguity of API usage among these code models are crucial for achieving desirable program functionalities, requiring them to learn various API fully qualified names structurally and semantically.

Code Generation Knowledge Probing

Decentralised Governance-Driven Architecture for Designing Foundation Model based Systems: Exploring the Role of Blockchain in Responsible AI

no code implementations11 Aug 2023 Yue Liu, Qinghua Lu, Liming Zhu, Hye-Young Paik

Foundation models including large language models (LLMs) are increasingly attracting interest worldwide for their distinguished capabilities and potential to perform a wide variety of tasks.

Distributed Trust Through the Lens of Software Architecture

no code implementations25 May 2023 Sin Kit Lo, Yue Liu, Guangsheng Yu, Qinghua Lu, Xiwei Xu, Liming Zhu

Distributed trust is a nebulous concept that has evolved from different perspectives in recent years.

Attribute Federated Learning

A Taxonomy of Foundation Model based Systems through the Lens of Software Architecture

no code implementations9 May 2023 Qinghua Lu, Liming Zhu, Xiwei Xu, Yue Liu, Zhenchang Xing, Jon Whittle

The recent release of large language model (LLM) based chatbots, such as ChatGPT, has attracted huge interest in foundation models.

Language Modelling Large Language Model

Blockchain-Empowered Trustworthy Data Sharing: Fundamentals, Applications, and Challenges

no code implementations12 Mar 2023 Linh T. Nguyen, Lam Duc Nguyen, Thong Hoang, Dilum Bandara, Qin Wang, Qinghua Lu, Xiwei Xu, Liming Zhu, Petar Popovski, Shiping Chen

Second, we focus on the convergence of blockchain and data sharing to give a clear picture of this landscape and propose a reference architecture for blockchain-based data sharing.

Emerging Synergies in Causality and Deep Generative Models: A Survey

no code implementations29 Jan 2023 Guanglin Zhou, Shaoan Xie, GuangYuan Hao, Shiming Chen, Biwei Huang, Xiwei Xu, Chen Wang, Liming Zhu, Lina Yao, Kun Zhang

In the field of artificial intelligence (AI), the quest to understand and model data-generating processes (DGPs) is of paramount importance.

Causal Identification Fairness +1

Developing Responsible Chatbots for Financial Services: A Pattern-Oriented Responsible AI Engineering Approach

no code implementations3 Jan 2023 Qinghua Lu, Yuxiu Luo, Liming Zhu, Mingjian Tang, Xiwei Xu, Jon Whittle

In this article, we first summarise the major challenges in operationalising responsible AI at scale and introduce how we use the Responsible AI Pattern Catalogue to address those challenges.

Chatbot Fairness

Responsible AI Pattern Catalogue: A Collection of Best Practices for AI Governance and Engineering

no code implementations12 Sep 2022 Qinghua Lu, Liming Zhu, Xiwei Xu, Jon Whittle, Didar Zowghi, Aurelie Jacquet

Rather than staying at the principle or algorithm level, we focus on patterns that AI system stakeholders can undertake in practice to ensure that the developed AI systems are responsible throughout the entire governance and engineering lifecycle.

Ethics Fairness

Contrastive Counterfactual Learning for Causality-aware Interpretable Recommender Systems

no code implementations13 Aug 2022 Guanglin Zhou, Chengkai Huang, Xiaocong Chen, Xiwei Xu, Chen Wang, Liming Zhu, Lina Yao

Recognizing that confounders may be elusive, we propose a contrastive self-supervised learning to minimize exposure bias, employing inverse propensity scores and expanding the positive sample set.

Causal Inference counterfactual +2

Learning to Infer Counterfactuals: Meta-Learning for Estimating Multiple Imbalanced Treatment Effects

no code implementations13 Aug 2022 Guanglin Zhou, Lina Yao, Xiwei Xu, Chen Wang, Liming Zhu

We regularly consider answering counterfactual questions in practice, such as "Would people with diabetes take a turn for the better had they choose another medication?".

counterfactual Counterfactual Inference +3

Psychologically-Inspired, Unsupervised Inference of Perceptual Groups of GUI Widgets from GUI Images

1 code implementation15 Jun 2022 Mulong Xie, Zhenchang Xing, Sidong Feng, Chunyang Chen, Liming Zhu, Xiwei Xu

These principles are domain-independent and have been widely adopted by practitioners to structure content on GUIs to improve aesthetic pleasant and usability.

Decision Models for Selecting Federated Learning Architecture Patterns

no code implementations28 Apr 2022 Sin Kit Lo, Qinghua Lu, Hye-Young Paik, Liming Zhu

Federated machine learning is growing fast in academia and industries as a solution to solve data hungriness and privacy issues in machine learning.

Federated Learning Management

Towards a Roadmap on Software Engineering for Responsible AI

no code implementations9 Mar 2022 Qinghua Lu, Liming Zhu, Xiwei Xu, Jon Whittle, Zhenchang Xing

Although AI is transforming the world, there are serious concerns about its ability to behave and make decisions responsibly.

Responsible-AI-by-Design: a Pattern Collection for Designing Responsible AI Systems

no code implementations2 Mar 2022 Qinghua Lu, Liming Zhu, Xiwei Xu, Jon Whittle

In the meantime much effort has been put into responsible AI from the algorithm perspective, but they are limited to a small subset of ethical principles amenable to mathematical analysis.

CO-PILOT: COllaborative Planning and reInforcement Learning On sub-Task curriculum

1 code implementation NeurIPS 2021 Shuang Ao, Tianyi Zhou, Guodong Long, Qinghua Lu, Liming Zhu, Jing Jiang

Next, a bottom-up traversal of the tree trains the RL agent from easier sub-tasks with denser rewards on bottom layers to harder ones on top layers and collects its cost on each sub-task train the planner in the next episode.

Continuous Control reinforcement-learning +1

Software Engineering for Responsible AI: An Empirical Study and Operationalised Patterns

no code implementations18 Nov 2021 Qinghua Lu, Liming Zhu, Xiwei Xu, Jon Whittle, David Douglas, Conrad Sanderson

These patterns provide concrete, operationalised guidance that facilitate the development of responsible AI systems.

Ethics

Cycle-Balanced Representation Learning For Counterfactual Inference

1 code implementation29 Oct 2021 Guanglin Zhou, Lina Yao, Xiwei Xu, Chen Wang, Liming Zhu

With the widespread accumulation of observational data, researchers obtain a new direction to learn counterfactual effects in many domains (e. g., health care and computational advertising) without Randomized Controlled Trials(RCTs).

counterfactual Counterfactual Inference +2

Vote for Nearest Neighbors Meta-Pruning of Self-Supervised Networks

no code implementations29 Sep 2021 Haiyan Zhao, Tianyi Zhou, Guodong Long, Jing Jiang, Liming Zhu, Chengqi Zhang

Can we find a better initialization for a new task, e. g., a much smaller network closer to the final pruned model, by exploiting its similar tasks?

Blockchain-based Trustworthy Federated Learning Architecture

no code implementations16 Aug 2021 Sin Kit Lo, Yue Liu, Qinghua Lu, Chen Wang, Xiwei Xu, Hye-Young Paik, Liming Zhu

To enhance the accountability and fairness of federated learning systems, we present a blockchain-based trustworthy federated learning architecture.

Fairness Federated Learning +1

FLRA: A Reference Architecture for Federated Learning Systems

no code implementations22 Jun 2021 Sin Kit Lo, Qinghua Lu, Hye-Young Paik, Liming Zhu

The proposed FLRA reference architecture is based on an extensive review of existing patterns of federated learning systems found in the literature and existing industrial implementation.

BIG-bench Machine Learning Federated Learning

AI and Ethics -- Operationalising Responsible AI

no code implementations19 May 2021 Liming Zhu, Xiwei Xu, Qinghua Lu, Guido Governatori, Jon Whittle

In the last few years, AI continues demonstrating its positive impact on society while sometimes with ethically questionable consequences.

Ethics

Architectural Patterns for the Design of Federated Learning Systems

no code implementations7 Jan 2021 Sin Kit Lo, Qinghua Lu, Liming Zhu, Hye-Young Paik, Xiwei Xu, Chen Wang

Therefore, in this paper, we present a collection of architectural patterns to deal with the design challenges of federated learning systems.

BIG-bench Machine Learning Federated Learning +1

Generating Informative CVE Description From ExploitDB Posts by Extractive Summarization

no code implementations5 Jan 2021 Jiamou Sun, Zhenchang Xing, Hao Guo, Deheng Ye, Xiaohong Li, Xiwei Xu, Liming Zhu

The extracted aspects from an ExploitDB post are then composed into a CVE description according to the suggested CVE description templates, which is must-provided information for requesting new CVEs.

Extractive Summarization Text Summarization

Meta Gradient Boosting Neural Networks

no code implementations1 Jan 2021 Manqing Dong, Lina Yao, Xianzhi Wang, Xiwei Xu, Liming Zhu

A key challenge for meta-optimization based approaches is to determine whether an initialization condition can be generalized to tasks with diverse distributions to accelerate learning.

Meta-Learning regression

Attn-HybridNet: Improving Discriminability of Hybrid Features with Attention Fusion

2 code implementations13 Oct 2020 Sunny Verma, Chen Wang, Liming Zhu, Wei Liu

The principal component analysis network (PCANet) is an unsupervised parsimonious deep network, utilizing principal components as filters in its convolution layers.

Blockchain-based Federated Learning for Failure Detection in Industrial IoT

no code implementations6 Sep 2020 Weishan Zhang, Qinghua Lu, Qiuyu Yu, Zhaotong Li, Yue Liu, Sin Kit Lo, Shiping Chen, Xiwei Xu, Liming Zhu

Therefore, in this paper, we present a platform architecture of blockchain-based federated learning systems for failure detection in IIoT.

Federated Learning Privacy Preserving

Object Detection for Graphical User Interface: Old Fashioned or Deep Learning or a Combination?

2 code implementations12 Aug 2020 Jieshan Chen, Mulong Xie, Zhenchang Xing, Chunyang Chen, Xiwei Xu, Liming Zhu, Guoqiang Li

We conduct the first large-scale empirical study of seven representative GUI element detection methods on over 50k GUI images to understand the capabilities, limitations and effective designs of these methods.

Code Generation object-detection +1

A Systematic Literature Review on Federated Machine Learning: From A Software Engineering Perspective

no code implementations22 Jul 2020 Sin Kit Lo, Qinghua Lu, Chen Wang, Hye-Young Paik, Liming Zhu

Federated learning is an emerging machine learning paradigm where clients train models locally and formulate a global model based on the local model updates.

BIG-bench Machine Learning Federated Learning

MAMO: Memory-Augmented Meta-Optimization for Cold-start Recommendation

1 code implementation7 Jul 2020 Manqing Dong, Feng Yuan, Lina Yao, Xiwei Xu, Liming Zhu

However, most meta-learning based recommendation approaches adopt model-agnostic meta-learning for parameter initialization, where the global sharing parameter may lead the model into local optima for some users.

Meta-Learning Recommendation Systems

Survey for Trust-aware Recommender Systems: A Deep Learning Perspective

no code implementations8 Apr 2020 Manqing Dong, Feng Yuan, Lina Yao, Xianzhi Wang, Xiwei Xu, Liming Zhu

A significant remaining challenge for existing recommender systems is that users may not trust the recommender systems for either lack of explanation or inaccurate recommendation results.

Recommendation Systems

Unblind Your Apps: Predicting Natural-Language Labels for Mobile GUI Components by Deep Learning

1 code implementation1 Mar 2020 Jieshan Chen, Chunyang Chen, Zhenchang Xing, Xiwei Xu, Liming Zhu, Guoqiang Li, Jinshui Wang

However, the prerequisite of using screen readers is that developers have to add natural-language labels to the image-based components when they are developing the app.

Missing Labels

Adversarial Examples on Graph Data: Deep Insights into Attack and Defense

2 code implementations5 Mar 2019 Huijun Wu, Chen Wang, Yuriy Tyshetskiy, Andrew Docherty, Kai Lu, Liming Zhu

Based on this observation, we propose a defense approach which inspects the graph and recovers the potential adversarial perturbations.

Adversarial Attack Adversarial Defense

Metric Factorization: Recommendation beyond Matrix Factorization

2 code implementations13 Feb 2018 Shuai Zhang, Lina Yao, Yi Tay, Xiwei Xu, Xiang Zhang, Liming Zhu

In the past decade, matrix factorization has been extensively researched and has become one of the most popular techniques for personalized recommendations.

Interpreting Shared Deep Learning Models via Explicable Boundary Trees

no code implementations12 Sep 2017 Huijun Wu, Chen Wang, Jie Yin, Kai Lu, Liming Zhu

In this paper, we propose a method to disclose a small set of training data that is just sufficient for users to get the insight of a complicated model.

Decision Making

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