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The goal of text-to-image synthesis is to generate a visually realistic image that matches a given text description. In practice, the captions annotated by humans for the same image have large variance in terms of contents and the choice of…

Machine Learning · Computer Science 2021-11-30 Hui Ye , Xiulong Yang , Martin Takac , Rajshekhar Sunderraman , Shihao Ji

Causal discovery aims to identify causal relationships between variables and is a fundamental problem across the sciences. Traditional statistical causal discovery (SCD) methods rely solely on observational data and ignore the contextual…

Artificial Intelligence · Computer Science 2026-05-27 Hao Duong Le , Xin Xia , Haijie Xu , Chen Zhang

Although the vision-and-language pretraining (VLP) equipped cross-modal image-text retrieval (ITR) has achieved remarkable progress in the past two years, it suffers from a major drawback: the ever-increasing size of VLP models restricts…

Multimedia · Computer Science 2022-07-05 Jun Rao , Liang Ding , Shuhan Qi , Meng Fang , Yang Liu , Li Shen , Dacheng Tao

Applying language models to natural language processing tasks typically relies on the representations in the final model layer, as intermediate hidden layer representations are presumed to be less informative. In this work, we argue that…

Computation and Language · Computer Science 2023-05-03 Ariel Gera , Roni Friedman , Ofir Arviv , Chulaka Gunasekara , Benjamin Sznajder , Noam Slonim , Eyal Shnarch

Multi-document question generation focuses on generating a question that covers the common aspect of multiple documents. Such a model is useful in generating clarifying options. However, a naive model trained only using the targeted…

Computation and Language · Computer Science 2021-05-19 Woon Sang Cho , Yizhe Zhang , Sudha Rao , Asli Celikyilmaz , Chenyan Xiong , Jianfeng Gao , Mengdi Wang , Bill Dolan

Large-scale text-to-image generative models have shown remarkable ability to synthesize diverse and high-quality images. However, it is still challenging to directly apply these models for editing real images for two reasons. First, it is…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Syed Muhmmad Israr , Feng Zhao

Multi-aspect controllable text generation aims to generate fluent sentences that possess multiple desired attributes simultaneously. Traditional methods either combine many operators in the decoding stage, often with costly iteration or…

Computation and Language · Computer Science 2023-10-18 Hanxing Ding , Liang Pang , Zihao Wei , Huawei Shen , Xueqi Cheng , Tat-Seng Chua

In this paper, we study the problem of Generalized Category Discovery (GCD), which aims to cluster unlabeled data from both known and unknown categories using the knowledge of labeled data from known categories. Current GCD methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Haiyang Zheng , Nan Pu , Wenjing Li , Nicu Sebe , Zhun Zhong

Cross-modal retrieval (CMR) has been extensively applied in various domains, such as multimedia search engines and recommendation systems. Most existing CMR methods focus on image-to-text retrieval, whereas audio-to-text retrieval, a less…

Sound · Computer Science 2023-09-19 Kaiyi Luo , Xulong Zhang , Jianzong Wang , Huaxiong Li , Ning Cheng , Jing Xiao

Canonical Correlation Analysis (CCA) is a statistical technique used to extract common information from multiple data sources or views. It has been used in various representation learning problems, such as dimensionality reduction, word…

Machine Learning · Computer Science 2020-06-18 Benjamin Dutton

Generalized Category Discovery (GCD) aims to classify inputs into both known and novel categories, a task crucial for open-world scientific discoveries. However, current GCD methods are limited to unimodal data, overlooking the inherently…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Yuchang Su , Renping Zhou , Siyu Huang , Xingjian Li , Tianyang Wang , Ziyue Wang , Min Xu

The deployment of large language models (LLMs) faces considerable challenges concerning resource constraints and inference efficiency. Recent research has increasingly focused on smaller, task-specific models enhanced by distilling…

Computation and Language · Computer Science 2024-09-20 Wei Wang , Zhaowei Li , Qi Xu , Yiqing Cai , Hang Song , Qi Qi , Ran Zhou , Zhida Huang , Tao Wang , Li Xiao

It is common to reject undesired outputs of Large Language Models (LLMs); however, current methods to do so require an excessive amount of computation to re-sample after a rejection, or distort the distribution of outputs by constraining…

Computation and Language · Computer Science 2025-10-09 Daniel Melcer , Sujan Gonugondla , Pramuditha Perera , Haifeng Qian , Wen-Hao Chiang , Yanjun Wang , Nihal Jain , Pranav Garg , Xiaofei Ma , Anoop Deoras

Target speech extraction has attracted widespread attention. When microphone arrays are available, the additional spatial information can be helpful in extracting the target speech. We have recently proposed a channel decorrelation (CD)…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-08 Jiangyu Han , Wei Rao , Yannan Wang , Yanhua Long

Contrastive Divergence (CD) and Persistent Contrastive Divergence (PCD) are popular methods for training the weights of Restricted Boltzmann Machines. However, both methods use an approximate method for sampling from the model distribution.…

Neural and Evolutionary Computing · Computer Science 2014-02-17 Mathias Berglund , Tapani Raiko

Existing text recognition methods usually need large-scale training data. Most of them rely on synthetic training data due to the lack of annotated real images. However, there is a domain gap between the synthetic data and real data, which…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Mingkun Yang , Minghui Liao , Pu Lu , Jing Wang , Shenggao Zhu , Hualin Luo , Qi Tian , Xiang Bai

Text-to-image diffusion models have achieved remarkable performance in image synthesis, while the text interface does not always provide fine-grained control over certain image factors. For instance, changing a single token in the text can…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Chen Wu , Fernando De la Torre

Recently, contrastive learning attracts increasing interests in neural text generation as a new solution to alleviate the exposure bias problem. It introduces a sequence-level training signal which is crucial to generation tasks that always…

Computation and Language · Computer Science 2023-02-06 Chenxin An , Jiangtao Feng , Kai Lv , Lingpeng Kong , Xipeng Qiu , Xuanjing Huang

Controllable code generation, the ability to synthesize code that follows a specified style while maintaining functionality, remains a challenging task. We propose a two-stage training framework combining contrastive learning and…

Artificial Intelligence · Computer Science 2026-01-27 Dutao Zhang , Nicolas Rafael Arroyo Arias , YuLong He , Sergey Kovalchuk

Change detection (CD) identifies scene changes from multi-temporal observations and is widely used in urban development and environmental monitoring. Most existing CD methods rely on supervised learning, making performance strongly…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Ziqiang Zhu , Bowei Yang