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相关论文: An Empirical Study On Contrastive Search And Contr…

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Contrastive learning has become a popular approach in natural language processing, particularly for the learning of sentence embeddings. However, the discrete nature of natural language makes it difficult to ensure the quality of positive…

计算与语言 · 计算机科学 2023-05-23 Qinyuan Cheng , Xiaogui Yang , Tianxiang Sun , Linyang Li , Xipeng Qiu

Dense retrieval (DR) has shown promising results in information retrieval. In essence, DR requires high-quality text representations to support effective search in the representation space. Recent studies have shown that pre-trained…

信息检索 · 计算机科学 2022-08-23 Xinyu Ma , Ruqing Zhang , Jiafeng Guo , Yixing Fan , Xueqi Cheng

Recent advances in neural-based generative modeling have reignited the hopes of having computer systems capable of conversing with humans and able to understand natural language. The employment of deep neural architectures has been largely…

计算与语言 · 计算机科学 2022-11-16 Haoqin Tu , Yitong Li

Despite their outstanding capabilities, large language models (LLMs) are prone to hallucination and producing factually incorrect information. This challenge has spurred efforts in attributed text generation, which prompts LLMs to generate…

计算与语言 · 计算机科学 2025-06-23 Junyi Li , Hwee Tou Ng

Transformers have profoundly influenced AI research, but explaining their decisions remains challenging -- even for relatively simpler tasks such as classification -- which hinders trust and safe deployment in real-world applications.…

计算与语言 · 计算机科学 2025-07-30 Sungmin Han , Jeonghyun Lee , Sangkyun Lee

Contrastive Decoding (CD) enhances the generation quality of large language models (LLMs) but incurs significant additional computational overhead due to the need for an auxiliary model. Existing internal self-contrastive decoding methods,…

计算与语言 · 计算机科学 2026-01-30 Hong-Kai Zheng , Piji Li

Recent work learns contextual representations of source code by reconstructing tokens from their context. For downstream semantic understanding tasks like summarizing code in English, these representations should ideally capture program…

机器学习 · 计算机科学 2022-01-10 Paras Jain , Ajay Jain , Tianjun Zhang , Pieter Abbeel , Joseph E. Gonzalez , Ion Stoica

Quality Estimation (QE) models evaluate the quality of machine translations without reference translations, serving as the reward models for the translation task. Due to the data scarcity, synthetic data generation has emerged as a…

计算与语言 · 计算机科学 2025-06-19 Xiang Geng , Zhejian Lai , Jiajun Chen , Hao Yang , Shujian Huang

Large audio-language models (LALMs) generalize across speech, sound, and music, but unified decoders can exhibit a \emph{temporal smoothing bias}: transient acoustic cues may be underutilized in favor of temporally smooth context that is…

声音 · 计算机科学 2026-04-20 Yanda Li , Yuhan Liu , Zirui Song , Yunchao Wei , Martin Takáč , Salem Lahlou

Feature extraction is crucial for human activity recognition (HAR) using body-worn movement sensors. Recently, learned representations have been used successfully, offering promising alternatives to manually engineered features. Our work…

机器学习 · 计算机科学 2020-12-11 Harish Haresamudram , Irfan Essa , Thomas Ploetz

In this paper, we first extend the recent Masked Auto-Encoder (MAE) model from a single modality to audio-visual multi-modalities. Subsequently, we propose the Contrastive Audio-Visual Masked Auto-Encoder (CAV-MAE) by combining contrastive…

Designers may often ask themselves how to adjust their design concepts to achieve demanding functional goals. To answer such questions, designers must often consider counterfactuals, weighing design alternatives and their projected…

人工智能 · 计算机科学 2024-06-04 Lyle Regenwetter , Yazan Abu Obaideh , Faez Ahmed

Standard language models generate text by selecting tokens from a fixed, finite, and standalone vocabulary. We introduce a novel method that selects context-aware phrases from a collection of supporting documents. One of the most…

计算与语言 · 计算机科学 2024-03-19 Bowen Cao , Deng Cai , Leyang Cui , Xuxin Cheng , Wei Bi , Yuexian Zou , Shuming Shi

Self-supervised learning (SSL) has recently emerged as a powerful approach to learning representations from large-scale unlabeled data, showing promising results in time series analysis. The self-supervised representation learning can be…

机器学习 · 计算机科学 2024-03-18 Ziyu Liu , Azadeh Alavi , Minyi Li , Xiang Zhang

In recent years, with the development of deep learning, text generation technology has undergone great changes and provided many kinds of services for human beings, such as restaurant reservation and daily communication. The automatically…

计算与语言 · 计算机科学 2020-12-25 Bin Guo , Hao Wang , Yasan Ding , Wei Wu , Shaoyang Hao , Yueqi Sun , Zhiwen Yu

Contrastive representation learning has proven to be an effective self-supervised learning method. Most successful approaches are based on Noise Contrastive Estimation (NCE) and use different views of an instance as positives that should be…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Julien Denize , Jaonary Rabarisoa , Astrid Orcesi , Romain Hérault , Stéphane Canu

Recently, the cross-modal pre-training task has been a hotspot because of its wide application in various down-streaming researches including retrieval, captioning, question answering and so on. However, exiting methods adopt a one-stream…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Keyu Wen , Zhenshan Tan , Qingrong Cheng , Cheng Chen , Xiaodong Gu

In this paper, we present a deep generative model based method to generate diverse human motion interpolation results. We resort to the Conditional Variational Auto-Encoder (CVAE) to learn human motion conditioned on a pair of given start…

计算机视觉与模式识别 · 计算机科学 2021-11-15 Chunzhi Gu , Shuofeng Zhao , Chao Zhang

Recent works of music representation learning mainly focus on learning acoustic music representations with unlabeled audios or further attempt to acquire multi-modal music representations with scarce annotated audio-text pairs. They either…

声音 · 计算机科学 2025-05-30 Xiaofeng Pan , Jing Chen , Haitong Zhang , Menglin Xing , Jiayi Wei , Xuefeng Mu , Zhongqian Xie

Although the Conditional Variational AutoEncoder (CVAE) model can generate more diversified responses than the traditional Seq2Seq model, the responses often have low relevance with the input words or are illogical with the question. A…

计算与语言 · 计算机科学 2022-10-12 Jiayi Liu , Wei Wei , Zhixuan Chu , Xing Gao , Ji Zhang , Tan Yan , Yulin Kang