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Conversational question answering (CQA) is a novel QA task that requires understanding of dialogue context. Different from traditional single-turn machine reading comprehension (MRC) tasks, CQA includes passage comprehension, coreference…

计算与语言 · 计算机科学 2019-01-04 Chenguang Zhu , Michael Zeng , Xuedong Huang

Accurate spatial-temporal (ST) prediction for dynamic systems, such as urban mobility and weather patterns, is crucial but hindered by complex ST correlations and the challenge of concurrently modeling long-term trends with short-term…

机器学习 · 计算机科学 2025-07-15 Sina Ehsani , Fenglian Pan , Qingpei Hu , Jian Liu

Modern large language models increasingly require long contexts for reasoning and multi-document tasks, but attention's quadratic complexity creates a severe computational bottleneck. We present Block-Sparse FlashAttention (BSFA), a drop-in…

机器学习 · 计算机科学 2025-12-09 Daniel Ohayon , Itay Lamprecht , Itay Hubara , Israel Cohen , Daniel Soudry , Noam Elata

We present CIFLEX (Contextual Instruction Flow for Sub-task Execution), which is a novel execution system for efficient sub-task handling in multi-turn interactions with a single on-device large language model (LLM). As LLMs become…

计算与语言 · 计算机科学 2025-10-03 Juntae Lee , Jihwan Bang , Seunghan Yang , Simyung Chang

Transformers have advanced the field of natural language processing (NLP) on a variety of important tasks. At the cornerstone of the Transformer architecture is the multi-head attention (MHA) mechanism which models pairwise interactions…

计算与语言 · 计算机科学 2021-06-01 Lin Zheng , Zhiyong Wu , Lingpeng Kong

Multi-choice machine reading comprehension (MRC) requires models to choose the correct answer from candidate options given a passage and a question. Our research focuses dialogue-based MRC, where the passages are multi-turn dialogues. It…

计算与语言 · 计算机科学 2020-09-11 Junlong Li , Zhuosheng Zhang , Hai Zhao

The standard content-based attention mechanism typically used in sequence-to-sequence models is computationally expensive as it requires the comparison of large encoder and decoder states at each time step. In this work, we propose an…

计算与语言 · 计算机科学 2017-07-04 Denny Britz , Melody Y. Guan , Minh-Thang Luong

Self-attention model have shown its flexibility in parallel computation and the effectiveness on modeling both long- and short-term dependencies. However, it calculates the dependencies between representations without considering the…

计算与语言 · 计算机科学 2019-02-18 Baosong Yang , Jian Li , Derek Wong , Lidia S. Chao , Xing Wang , Zhaopeng Tu

Multimodal emotion and intent recognition is essential for automated human-computer interaction, It aims to analyze users' speech, text, and visual information to predict their emotions or intent. One of the significant challenges is that…

人工智能 · 计算机科学 2025-07-09 Wei Zhang , Juan Chen , Yanbo J. Wang , En Zhu , Xuan Yang , Yiduo Wang

Existing two-stream models, such as CLIP, encode images and text through independent representations, showing good performance while ensuring retrieval speed, have attracted attention from industry and academia. However, the single…

计算机视觉与模式识别 · 计算机科学 2025-02-20 Wanqing Cui , Rui Cheng , Jiafeng Guo , Xueqi Cheng

Existing machine reading comprehension (MRC) models do not scale effectively to real-world applications like web-level information retrieval and question answering (QA). We argue that this stems from the nature of MRC datasets: most of…

计算与语言 · 计算机科学 2020-04-17 Xingdi Yuan , Jie Fu , Marc-Alexandre Cote , Yi Tay , Christopher Pal , Adam Trischler

Most existing multi-document machine reading comprehension models mainly focus on understanding the interactions between the input question and documents, but ignore following two kinds of understandings. First, to understand the semantic…

计算与语言 · 计算机科学 2022-04-08 Feiliang Ren , Yongkang Liu , Bochao Li , Zhibo Wang , Yu Guo , Shilei Liu , Huimin Wu , Jiaqi Wang , Chunchao Liu , Bingchao Wang

Long-form speech recognition is an application area of increasing research focus. ASR models based on multi-head attention (MHA) are ill-suited to long-form ASR because of their quadratic complexity in sequence length. We build on recent…

计算与语言 · 计算机科学 2025-06-25 Martin Ratajczak , Jean-Philippe Robichaud , Jennifer Drexler Fox

This paper introduces Generalized Attention Flow (GAF), a novel feature attribution method for Transformer-based models to address the limitations of current approaches. By extending Attention Flow and replacing attention weights with the…

机器学习 · 计算机科学 2025-02-25 Behrooz Azarkhalili , Maxwell Libbrecht

In-context learning based on attention models is examined for data with categorical outcomes, with inference in such models viewed from the perspective of functional gradient descent (GD). We develop a network composed of attention blocks,…

机器学习 · 统计学 2025-05-08 Aaron T. Wang , William Convertino , Xiang Cheng , Ricardo Henao , Lawrence Carin

Despite advancements in multimodal large language models (MLLMs), current approaches struggle in medium-to-long video understanding due to frame and context length limitations. As a result, these models often depend on frame sampling, which…

计算机视觉与模式识别 · 计算机科学 2025-04-25 Shehreen Azad , Vibhav Vineet , Yogesh Singh Rawat

In this paper, we demonstrate that an inherent waveform pattern in the attention allocation of large language models (LLMs) significantly affects their performance in tasks demanding a high degree of context awareness, such as utilizing…

计算与语言 · 计算机科学 2024-06-05 Yuhan Chen , Ang Lv , Ting-En Lin , Changyu Chen , Yuchuan Wu , Fei Huang , Yongbin Li , Rui Yan

We propose a new attention mechanism for neural based question answering, which depends on varying granularities of the input. Previous work focused on augmenting recurrent neural networks with simple attention mechanisms which are a…

计算与语言 · 计算机科学 2017-09-21 Yoram Bachrach , Andrej Zukov-Gregoric , Sam Coope , Ed Tovell , Bogdan Maksak , Jose Rodriguez , Conan McMurtie

Reading comprehension (RC) is a challenging task that requires synthesis of information across sentences and multiple turns of reasoning. Using a state-of-the-art RC model, we empirically investigate the performance of single-turn and…

计算与语言 · 计算机科学 2017-11-10 Yelong Shen , Xiaodong Liu , Kevin Duh , Jianfeng Gao

Text classification assigns text to predefined categories. Traditional methods struggle with complex structures and long-range dependencies. Deep learning with recurrent neural networks and Transformer models has improved feature extraction…

计算与语言 · 计算机科学 2025-06-24 Dong Xu , Mengyao Liao , Zhenglin Lai , Xueliang Li , Junkai Ji