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Large language model (LLM) based listwise reranking has emerged as the dominant paradigm for achieving state-of-the-art ranking effectiveness in information retrieval. However, its reliance on feeding full passage texts into the LLM…

信息检索 · 计算机科学 2026-04-27 Xiaojie Ke , Shuai Zhang , Liansheng Sun , Yongjin Wang , Hengjun Jiang , Xiangkun Liu , Cunxin Gu , Jian Xu , Guanjun Jiang

Recently, there has been an increasing interest in unsupervised parsers that optimize semantically oriented objectives, typically using reinforcement learning. Unfortunately, the learned trees often do not match actual syntax trees well.…

计算与语言 · 计算机科学 2019-06-07 Bowen Li , Lili Mou , Frank Keller

Stack Overflow is one of the most popular Programming Community-based Question Answering (PCQA) websites that has attracted more and more users in recent years. When users raise or inquire questions in Stack Overflow, providing related…

计算与语言 · 计算机科学 2021-04-06 Jiayan Pei , Yimin Wu , Zishan Qin , Yao Cong , Jingtao Guan

The recent tremendous success of unsupervised word embeddings in a multitude of applications raises the obvious question if similar methods could be derived to improve embeddings (i.e. semantic representations) of word sequences as well. We…

计算与语言 · 计算机科学 2018-12-31 Matteo Pagliardini , Prakhar Gupta , Martin Jaggi

In recent years, multimodal multidomain fake news detection has garnered increasing attention. Nevertheless, this direction presents two significant challenges: (1) Failure to Capture Cross-Instance Narrative Consistency: existing models…

计算与语言 · 计算机科学 2026-04-30 Yiheng Li , Weihai Lu , Hanyi Yu , Yue Wang

Unsupervised image captioning with no annotations is an emerging challenge in computer vision, where the existing arts usually adopt GAN (Generative Adversarial Networks) models. In this paper, we propose a novel memory-based network rather…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Dan Guo , Yang Wang , Peipei Song , Meng Wang

Recent development in fully convolutional neural network enables efficient end-to-end learning of semantic segmentation. Traditionally, the convolutional classifiers are taught to learn the representative semantic features of labeled…

计算机视觉与模式识别 · 计算机科学 2017-07-21 Qin Huang , Chunyang Xia , Chihao Wu , Siyang Li , Ye Wang , Yuhang Song , C. -C. Jay Kuo

Learning vector representation for words is an important research field which may benefit many natural language processing tasks. Two limitations exist in nearly all available models, which are the bias caused by the context definition and…

计算与语言 · 计算机科学 2015-06-01 Xuefeng Yang , Kezhi Mao

Built upon the existing analysis of retrieval heads in large language models, we propose an alternative reranking framework that trains models to estimate passage-query relevance using the attention scores of selected heads. This approach…

计算与语言 · 计算机科学 2026-03-11 Yuqing Li , Jiangnan Li , Mo Yu , Guoxuan Ding , Zheng Lin , Weiping Wang , Jie Zhou

We propose the Neural Vector Space Model (NVSM), a method that learns representations of documents in an unsupervised manner for news article retrieval. In the NVSM paradigm, we learn low-dimensional representations of words and documents…

信息检索 · 计算机科学 2018-08-21 Christophe Van Gysel , Maarten de Rijke , Evangelos Kanoulas

We introduce a framework for unsupervised learning of structured predictors with overlapping, global features. Each input's latent representation is predicted conditional on the observable data using a feature-rich conditional random field.…

机器学习 · 计算机科学 2014-11-11 Waleed Ammar , Chris Dyer , Noah A. Smith

The joint understanding of vision and language has been recently gaining a lot of attention in both the Computer Vision and Natural Language Processing communities, with the emergence of tasks such as image captioning, image-text matching,…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Matteo Stefanini , Marcella Cornia , Lorenzo Baraldi , Rita Cucchiara

Frequently asked question (FAQ) retrieval, with the purpose of providing information on frequent questions or concerns, has far-reaching applications in many areas, where a collection of question-answer (Q-A) pairs compiled a priori can be…

人工智能 · 计算机科学 2020-10-28 Wen-Ting Tseng , Tien-Hong Lo , Yung-Chang Hsu , Berlin Chen

Sequence models lie at the heart of modern deep learning. However, rapid advancements have produced a diversity of seemingly unrelated architectures, such as Transformers and recurrent alternatives. In this paper, we introduce a unifying…

机器学习 · 计算机科学 2025-05-05 Ke Alexander Wang , Jiaxin Shi , Emily B. Fox

This paper presents a new semi-supervised framework with convolutional neural networks (CNNs) for text categorization. Unlike the previous approaches that rely on word embeddings, our method learns embeddings of small text regions from…

机器学习 · 统计学 2015-11-03 Rie Johnson , Tong Zhang

In this paper, we propose a new differentiable neural network alignment mechanism for text-dependent speaker verification which uses alignment models to produce a supervector representation of an utterance. Unlike previous works with…

声音 · 计算机科学 2018-12-27 Victoria Mingote , Antonio Miguel , Alfonso Ortega , Eduardo Lleida

We present a novel method for computing correspondences across 3D shapes using unsupervised learning. Our method computes a non-linear transformation of given descriptor functions, while optimizing for global structural properties of the…

图形学 · 计算机科学 2019-08-23 Jean-Michel Roufosse , Abhishek Sharma , Maks Ovsjanikov

Many of the current state-of-the-art Large Vocabulary Continuous Speech Recognition Systems (LVCSR) are hybrids of neural networks and Hidden Markov Models (HMMs). Most of these systems contain separate components that deal with the…

计算与语言 · 计算机科学 2016-03-16 Dzmitry Bahdanau , Jan Chorowski , Dmitriy Serdyuk , Philemon Brakel , Yoshua Bengio

One of the main challenges in ranking is embedding the query and document pairs into a joint feature space, which can then be fed to a learning-to-rank algorithm. To achieve this representation, the conventional state of the art approaches…

计算与语言 · 计算机科学 2018-08-09 Dana Sagi , Tzoof Avny , Kira Radinsky , Eugene Agichtein

Natural language sentence matching is the task of comparing two sentences and identifying the relationship between them.It has a wide range of applications in natural language processing tasks such as reading comprehension, question and…

计算与语言 · 计算机科学 2022-03-22 Kexin Jiang , Yahui Zhao , Rongyi Cui , Zhenguo Zhang