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Steven C.H. Hoi

16 accepted papers

2022

Align and Prompt: Video-and-Language Pre-Training With Entity Prompts

CVPR 2022poster

Video-and-language pre-training has shown promising improvements on various downstream tasks. Most previous methods capture cross-modal interactions with a transformer-based multimodal encoder, not fully addressing the misalignment between unimodal video and text features. Besides, learning fine-gra…

Cited by 235PDFcodeScholar
2022

Detect-Localize-Repair: A Unified Framework for Learning to Debug with CodeT5

EMNLP 2022finding

Automated software debugging is a crucial task for improving the productivity of software developers. Many neural-based techniques have been proven effective for debugging-related tasks such as bug localization and program repair (or bug fixing). However, these techniques often focus only on either…

2022

Learning Label Modular Prompts for Text Classification in the Wild

EMNLP 2022main

Machine learning models usually assume i.i.d data during training and testing, but data and tasks in real world often change over time. To emulate the transient nature of real world, we propose a challenging but practical task: text classification in-the-wild, which introduces different non-stationa…

2022

Plug-and-Play VQA: Zero-shot VQA by Conjoining Large Pretrained Models with Zero Training

EMNLP 2022finding

Visual question answering (VQA) is a hallmark of vision and language reasoningand a challenging task under the zero-shot setting.We propose Plug-and-Play VQA (PNP-VQA),a modular framework for zero-shot VQA.In contrast to most existing works, which require substantial adaptation of pretrained languag…

2022

Vector-Quantized Input-Contextualized Soft Prompts for Natural Language Understanding

EMNLP 2022main

Prompt Tuning has been largely successful as a parameter-efficient method of conditioning large-scale pre-trained language models to perform downstream tasks. Thus far, soft prompt tuning learns a fixed set of task-specific continuous vectors, i.e., soft tokens that remain static across the task sam…

2022

Weakly Supervised Neuro-Symbolic Module Networks for Numerical Reasoning over Text

AAAI 2022technical

Neural Module Networks (NMNs) have been quite successful in incorporating explicit reasoning as learnable modules in various question answering tasks, including the most generic form of numerical reasoning over text in Machine Reading Comprehension (MRC). However to achieve this, contemporary Neural…

2021

CodeT5: Identifier-aware Unified Pre-trained Encoder-Decoder Models for Code Understanding and Generation

EMNLP 2021main

Pre-trained models for Natural Languages (NL) like BERT and GPT have been recently shown to transfer well to Programming Languages (PL) and largely benefit a broad set of code-related tasks. Despite their success, most current methods either rely on an encoder-only (or decoder-only) pre-training tha…

2021

Relative and Absolute Location Embedding for Few-Shot Node Classification on Graph

AAAI 2021technical

Node classification is an important problem on graphs. While recent advances in graph neural networks achieve promising performance, they require abundant labeled nodes for training. However, in many practical scenarios, there often exist novel classes in which only one or a few labeled nodes are av…

Cited by 101SourcePDFScholar
2020

Adaptive Task Sampling for Meta-Learning

ECCV 2020poster

Meta-learning methods have been extensively studied and applied in computer vision, especially for few-shot classification tasks. The key idea of meta-learning for few-shot classification is to mimic the few-shot situations faced at test time by randomly sampling classes in meta-training data to con…

Cited by 73SourcePDFScholar
2018

Question-Guided Hybrid Convolution for Visual Question Answering

ECCV 2018poster

In this paper, we propose a novel Question-Guided Hybrid Convolution (QGHC) network for Visual Question Answering (VQA). Most state-of-the-art VQA methods fuse the high-level textual and visual features from the neural network and abandon the visual spatial information when learning multi-modal feat…

Cited by 93SourcePDFScholar
2015

Reliable Patch Trackers: Robust Visual Tracking by Exploiting Reliable Patches

CVPR 2015poster

Most modern trackers typically employ a bounding box given in the first frame to track visual objects, where their tracking results are often sensitive to the initialization. In this paper, we propose a new tracking method, Reliable Patch Trackers (RPT), which attempts to identify and exploit the re…

Cited by 440SourcePDFScholar