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Dense retrieval has become the new paradigm in passage retrieval. Despite its effectiveness on typo-free queries, it is not robust when dealing with queries that contain typos. Current works on improving the typo-robustness of dense…

信息检索 · 计算机科学 2024-03-19 Georgios Sidiropoulos , Evangelos Kanoulas

Although providing exceptional results for many computer vision tasks, state-of-the-art deep learning algorithms catastrophically struggle in low data scenarios. However, if data in additional modalities exist (e.g. text) this can…

计算机视觉与模式识别 · 计算机科学 2020-11-19 Frederik Pahde , Mihai Puscas , Tassilo Klein , Moin Nabi

Training large language models as retrieval-augmented reasoning agents typically combines reinforcement learning with an SFT cold start distilled from a stronger model. However, this paradigm overlooks two fundamental factors: the…

人工智能 · 计算机科学 2026-05-28 Zhipeng Qian , Zihan Liang , Yufei Ma , Ben Chen , Huangyu Dai , Jiayi Ji , Chenyi Lei , Wenwu Ou , Xiaoshuai Sun , Qibin Hou

Obtaining large annotated datasets is critical for training successful machine learning models and it is often a bottleneck in practice. Weak supervision offers a promising alternative for producing labeled datasets without ground truth…

机器学习 · 计算机科学 2021-01-27 Benedikt Boecking , Willie Neiswanger , Eric Xing , Artur Dubrawski

Multi-hop question answering (QA) is a challenging task requiring QA systems to perform complex reasoning over multiple documents and provide supporting facts together with the exact answer. Existing works tend to utilize graph-based…

计算与语言 · 计算机科学 2022-05-25 Xin-Yi Li , Wei-Jun Lei , Yu-Bin Yang

Vision-and-Language (V+L) pre-training models have achieved tremendous success in recent years on various multi-modal benchmarks. However, the majority of existing models require pre-training on a large set of parallel image-text data,…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Mingyang Zhou , Licheng Yu , Amanpreet Singh , Mengjiao Wang , Zhou Yu , Ning Zhang

Question Answering (QA) has shown great success thanks to the availability of large-scale datasets and the effectiveness of neural models. Recent research works have attempted to extend these successes to the settings with few or no labeled…

计算与语言 · 计算机科学 2020-05-07 Zhongli Li , Wenhui Wang , Li Dong , Furu Wei , Ke Xu

Generating vivid and emotional 3D co-speech gestures is crucial for virtual avatar animation in human-machine interaction applications. While the existing methods enable generating the gestures to follow a single emotion label, they…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Xingqun Qi , Jiahao Pan , Peng Li , Ruibin Yuan , Xiaowei Chi , Mengfei Li , Wenhan Luo , Wei Xue , Shanghang Zhang , Qifeng Liu , Yike Guo

KBQA is a task that requires to answer questions by using semantic structured information in knowledge base. Previous work in this area has been restricted due to the lack of large semantic parsing dataset and the exponential growth of…

计算与语言 · 计算机科学 2022-01-28 Meihao Fan , Lei Zhang , Siyao Xiao , Yuru Liang

We propose a novel algorithm for visual question answering based on a recurrent deep neural network, where every module in the network corresponds to a complete answering unit with attention mechanism by itself. The network is optimized by…

计算机视觉与模式识别 · 计算机科学 2016-10-03 Hyeonwoo Noh , Bohyung Han

Recent progress in speech recognition has relied on models trained on vast amounts of labeled data. However, classroom Automatic Speech Recognition (ASR) faces the real-world challenge of abundant weak transcripts paired with only a small…

音频与语音处理 · 电气工程与系统科学 2026-02-24 Ahmed Adel Attia , Dorottya Demszky , Jing Liu , Carol Espy-Wilson

The task of temporally grounding textual queries in videos is to localize one video segment that semantically corresponds to the given query. Most of the existing approaches rely on segment-sentence pairs (temporal annotations) for…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Yijun Song , Jingwen Wang , Lin Ma , Zhou Yu , Jun Yu

Retrieving information from correlative paragraphs or documents to answer open-domain multi-hop questions is very challenging. To deal with this challenge, most of the existing works consider paragraphs as nodes in a graph and propose…

计算与语言 · 计算机科学 2021-02-09 Nan Shao , Yiming Cui , Ting Liu , Shijin Wang , Guoping Hu

Solving different types of optimization models (including parameters fitting) for support vector machines on large-scale training data is often an expensive computational task. This paper proposes a multilevel algorithmic framework that…

机器学习 · 统计学 2014-10-14 Talayeh Razzaghi , Ilya Safro

How can "weak teacher models" such as average human annotators or existing AI systems, effectively supervise LLMs to improve performance on hard reasoning tasks, especially those that challenge and requires expertise or daily practice from…

机器学习 · 计算机科学 2025-02-26 Xuan He , Da Yin , Nanyun Peng

Most previous few-shot learning algorithms are based on meta-training with fake few-shot tasks as training samples, where large labeled base classes are required. The trained model is also limited by the type of tasks. In this paper we…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Jianyi Li , Guizhong Liu

Weakly-supervised text classification aims to train a classifier using only class descriptions and unlabeled data. Recent research shows that keyword-driven methods can achieve state-of-the-art performance on various tasks. However, these…

计算与语言 · 计算机科学 2022-12-16 Tingyu Xia , Yue Wang , Yuan Tian , Yi Chang

Negation is a common linguistic skill that allows human to express what we do NOT want. Naturally, one might expect video retrieval to support natural-language queries with negation, e.g., finding shots of kids sitting on the floor and not…

多媒体 · 计算机科学 2022-07-14 Ziyue Wang , Aozhu Chen , Fan Hu , Xirong Li

Recently, sequence-to-sequence models with attention have been successfully applied in Text-to-speech (TTS). These models can generate near-human speech with a large accurately-transcribed speech corpus. However, preparing such a large…

音频与语音处理 · 电气工程与系统科学 2020-08-12 Haitong Zhang , Yue Lin

Weak supervision has been applied to various Natural Language Understanding tasks in recent years. Due to technical challenges with scaling weak supervision to work on long-form documents, spanning up to hundreds of pages, applications in…

计算与语言 · 计算机科学 2022-08-18 Emad Elwany , Allison Hegel , Marina Shah , Brendan Roof , Genevieve Peaslee , Quentin Rivet
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