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Traditional neural topic models are typically optimized by reconstructing the document's Bag-of-Words (BoW) representations, overlooking contextual information and struggling with data sparsity. In this work, we propose a novel approach to…

Computation and Language · Computer Science 2026-02-23 Raymond Li , Amirhossein Abaskohi , Chuyuan Li , Gabriel Murray , Giuseppe Carenini

In recent years, several studies on neural machine translation (NMT) have attempted to use document-level context by using a multi-encoder and two attention mechanisms to read the current and previous sentences to incorporate the context of…

Computation and Language · Computer Science 2019-09-04 Hayahide Yamagishi , Mamoru Komachi

Semantic segmentation is one of the core tasks in the field of computer vision, and its goal is to accurately classify each pixel in an image. The traditional Unet model achieves efficient feature extraction and fusion through an…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Xuan Li , Quanchao Lu , Yankaiqi Li , Muqing Li , Yijiashun Qi

We investigate different strategies for automatic offensive language classification on German Twitter data. For this, we employ a sequentially combined BiLSTM-CNN neural network. Based on this model, three transfer learning tasks to improve…

Computation and Language · Computer Science 2018-11-08 Gregor Wiedemann , Eugen Ruppert , Raghav Jindal , Chris Biemann

Self-attention mechanisms have achieved great success on a variety of NLP tasks due to its flexibility of capturing dependency between arbitrary positions in a sequence. For problems such as query-based summarization (Qsumm) and knowledge…

Computation and Language · Computer Science 2020-02-19 Yujia Xie , Tianyi Zhou , Yi Mao , Weizhu Chen

Attention mechanisms have improved the performance of NLP tasks while allowing models to remain explainable. Self-attention is currently widely used, however interpretability is difficult due to the numerous attention distributions. Recent…

Computation and Language · Computer Science 2020-10-30 Khalil Mrini , Franck Dernoncourt , Quan Tran , Trung Bui , Walter Chang , Ndapa Nakashole

Lawyers and judges spend a large amount of time researching the proper legal authority to cite while drafting decisions. In this paper, we develop a citation recommendation tool that can help improve efficiency in the process of opinion…

Information Retrieval · Computer Science 2021-06-22 Zihan Huang , Charles Low , Mengqiu Teng , Hongyi Zhang , Daniel E. Ho , Mark S. Krass , Matthias Grabmair

Recent advancements in long-context modeling have enhanced language models (LMs) for complex tasks across multiple NLP applications. Despite this progress, we find that these models struggle with multi-hop reasoning and exhibit decreased…

Computation and Language · Computer Science 2024-08-07 Yanyang Li , Shuo Liang , Michael R. Lyu , Liwei Wang

Semantic segmentation is a vital problem in computer vision. Recently, a common solution to semantic segmentation is the end-to-end convolution neural network, which is much more accurate than traditional methods.Recently, the decoders…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Hao Guo , Hongbiao Si , Guilin Jiang , Wei Zhang , Zhiyan Liu , Xuanyi Zhu , Xulong Zhang , Yang Liu

There is a growing interest in expanding the input capacity of language models (LMs) across various domains. However, simply increasing the context window does not guarantee robust performance across diverse long-input processing tasks,…

Computation and Language · Computer Science 2024-10-10 Wei Shi , Shuang Li , Kerun Yu , Jinglei Chen , Zujie Liang , Xinhui Wu , Yuxi Qian , Feng Wei , Bo Zheng , Jiaqing Liang , Jiangjie Chen , Yanghua Xiao

Modern neural speech models benefit from having longer context, and many approaches have been proposed to increase the maximum context a model can use. However, few have attempted to measure how much context these models actually use, i.e.,…

Sound · Computer Science 2025-05-29 Yen Meng , Sharon Goldwater , Hao Tang

For large-scale IT corpora with hundreds of classes organized in a hierarchy, the task of accurate classification of classes at the higher level in the hierarchies is crucial to avoid errors propagating to the lower levels. In the business…

Computation and Language · Computer Science 2023-08-25 Yasmen Wahba , Nazim Madhavji , John Steinbacher

There is currently a significant gap between the performance of fine-tuned models and prompting approaches using Large Language Models (LLMs) on the challenging task of text-to-SQL, as evaluated on datasets such as Spider. To improve the…

Computation and Language · Computer Science 2023-11-06 Mohammadreza Pourreza , Davood Rafiei

Background samples provide key contextual information for segmenting regions of interest (ROIs). However, they always cover a diverse set of structures, causing difficulties for the segmentation model to learn good decision boundaries with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Zeju Li , Konstantinos Kamnitsas , Cheng Ouyang , Chen Chen , Ben Glocker

In natural language processing (NLP), the context of a word or sentence plays an essential role. Contextual information such as the semantic representation of a passage or historical dialogue forms an essential part of a conversation and a…

Computation and Language · Computer Science 2022-11-08 Rui Yu , Yifeng Li , Wenpeng Lu , Longbing Cao

In-context learning (ICL) enables efficient few-shot learning in large language models (LLMs) without training, but suffers from the quadratic input complexity of transformers, limiting the maximum number of exemplars. While various…

Computation and Language · Computer Science 2025-10-10 Shaoyi Zheng , Canyu Zhang , Tianyi Zhou , Shengjie Wang

We present an unsupervised word segmentation model, in which the learning objective is to maximize the generation probability of a sentence given its all possible segmentation. Such generation probability can be factorized into the…

Computation and Language · Computer Science 2021-03-03 Lihao Wang , Zongyi Li , Xiaoqing Zheng

Feature disentanglement of the foreground target objects and the background surrounding context has not been yet fully accomplished. The lack of network interpretability prevents advancing for feature disentanglement and better…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Mahdi Biparva , John Tsotsos

Neural processes (NPs) aim to stochastically complete unseen data points based on a given context dataset. NPs essentially leverage a given dataset as a context representation to derive a suitable identifier for a novel task. To improve the…

Machine Learning · Computer Science 2022-04-13 Mingyu Kim , Kyeongryeol Go , Se-Young Yun

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…

Computation and Language · Computer Science 2019-02-18 Baosong Yang , Jian Li , Derek Wong , Lidia S. Chao , Xing Wang , Zhaopeng Tu