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This paper argues that generating output tokens is more effective than using pooled representations for prediction tasks because token-level generation retains more mutual information. Since LLMs are trained on massive text corpora using…

We propose a method to optimize the representation and distinguishability of samples from two probability distributions, by maximizing the estimated power of a statistical test based on the maximum mean discrepancy (MMD). This optimized MMD…

Generative Adversarial Networks (GANs) are a widely-used tool for generative modeling of complex data. Despite their empirical success, the training of GANs is not fully understood due to the min-max optimization of the generator and…

机器学习 · 计算机科学 2022-08-23 Evan Becker , Parthe Pandit , Sundeep Rangan , Alyson K. Fletcher

Generative adversarial networks are a novel method for statistical inference that have achieved much empirical success; however, the factors contributing to this success remain ill-understood. In this work, we attempt to analyze generative…

机器学习 · 计算机科学 2018-09-13 Shuang Liu , Kamalika Chaudhuri

We propose a deep generative approach to sampling from a conditional distribution based on a unified formulation of conditional distribution and generalized nonparametric regression function using the noise-outsourcing lemma. The proposed…

统计理论 · 数学 2021-10-22 Xingyu Zhou , Yuling Jiao , Jin Liu , Jian Huang

Verifiers or reward models are often used to enhance the reasoning performance of large language models (LLMs). A common approach is the Best-of-N method, where N candidate solutions generated by the LLM are ranked by a verifier, and the…

机器学习 · 计算机科学 2025-02-25 Lunjun Zhang , Arian Hosseini , Hritik Bansal , Mehran Kazemi , Aviral Kumar , Rishabh Agarwal

The promising zero-shot generalization of vision-language models such as CLIP has led to their adoption using prompt learning for numerous downstream tasks. Previous works have shown test-time prompt tuning using entropy minimization to…

计算机视觉与模式识别 · 计算机科学 2024-01-12 Jameel Hassan , Hanan Gani , Noor Hussein , Muhammad Uzair Khattak , Muzammal Naseer , Fahad Shahbaz Khan , Salman Khan

Generalized Zero-Shot Learning (GZSL) aims to train a classifier that can generalize to unseen classes, using a set of attributes as auxiliary information, and the visual features extracted from a pre-trained convolutional neural network.…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Paola Cascante-Bonilla , Leonid Karlinsky , James Seale Smith , Yanjun Qi , Vicente Ordonez

Zero-shot Learners are models capable of predicting unseen classes. In this work, we propose a Zero-shot Learning approach for text categorization. Our method involves training model on a large corpus of sentences to learn the relationship…

计算与语言 · 计算机科学 2017-12-27 Pushpankar Kumar Pushp , Muktabh Mayank Srivastava

Generalized Zero-Shot Learning (GZSL) is a challenging topic that has promising prospects in many realistic scenarios. Using a gating mechanism that discriminates the unseen samples from the seen samples can decompose the GZSL problem to a…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Xingyu Chen , Xuguang Lan , Fuchun Sun , Nanning Zheng

Large pretrained Transformer language models have been shown to exhibit zero-shot generalization, i.e. they can perform a wide variety of tasks that they were not explicitly trained on. However, the architectures and pretraining objectives…

计算与语言 · 计算机科学 2022-04-13 Thomas Wang , Adam Roberts , Daniel Hesslow , Teven Le Scao , Hyung Won Chung , Iz Beltagy , Julien Launay , Colin Raffel

Recent generative adversarial networks (GANs) are able to generate impressive photo-realistic images. However, controllable generation with GANs remains a challenging research problem. Achieving controllable generation requires semantically…

机器学习 · 计算机科学 2021-05-04 Grigorios G Chrysos , Jean Kossaifi , Zhiding Yu , Anima Anandkumar

Generative classifiers offer potential advantages over their discriminative counterparts, namely in the areas of data efficiency, robustness to data shift and adversarial examples, and zero-shot learning (Ng and Jordan,2002; Yogatama et…

计算与语言 · 计算机科学 2019-10-02 Xiaoan Ding , Kevin Gimpel

This paper explores zero-label learning in Natural Language Processing (NLP), whereby no human-annotated data is used anywhere during training and models are trained purely on synthetic data. At the core of our framework is a novel approach…

计算与语言 · 计算机科学 2021-09-21 Zirui Wang , Adams Wei Yu , Orhan Firat , Yuan Cao

Recent works show that image and video generators exhibit zero-shot visual understanding behaviors, in a way reminiscent of how LLMs develop emergent capabilities of language understanding and reasoning from generative pretraining. While it…

Training of generative models especially Generative Adversarial Networks can easily diverge in low-data setting. To mitigate this issue, we propose a novel implicit data augmentation approach which facilitates stable training and synthesize…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Mengyu Dai , Haibin Hang , Xiaoyang Guo

World models for environments with many objects face a combinatorial explosion of states: as the number of objects increases, the number of possible arrangements grows exponentially. In this paper, we learn to generalize over robotic…

机器人学 · 计算机科学 2022-02-14 Ondrej Biza , Thomas Kipf , David Klee , Robert Platt , Jan-Willem van de Meent , Lawson L. S. Wong

Zero-shot Relation Triplet Extraction (ZeroRTE) aims to extract relation triplets from texts containing unseen relation types. This capability benefits various downstream information retrieval (IR) tasks. The primary challenge lies in…

计算与语言 · 计算机科学 2025-04-29 Wanli Li , Tieyun Qian , Yi Song , Zeyu Zhang , Jiawei Li , Zhuang Chen , Lixin Zou

Generative Adversarial Networks (GANs) have proven to be a powerful framework for learning to draw samples from complex distributions. However, GANs are also notoriously difficult to train, with mode collapse and oscillations a common…

机器学习 · 统计学 2018-11-28 Kevin J Liang , Chunyuan Li , Guoyin Wang , Lawrence Carin

Abnormal crowd behaviour detection attracts a large interest due to its importance in video surveillance scenarios. However, the ambiguity and the lack of sufficient abnormal ground truth data makes end-to-end training of large deep…

计算机视觉与模式识别 · 计算机科学 2018-11-28 Mahdyar Ravanbakhsh , Enver Sangineto , Moin Nabi , Nicu Sebe