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For decades, the Bj{\o}ntegaard Delta (BD) has been the metric for evaluating codec Rate-Distortion (R-D) performance. Yet, in most studies, BD is determined using just 4-5 R-D data points, could this be sufficient? As codecs and quality…

多媒体 · 计算机科学 2024-10-17 Xinyu Hang , Shenpeng Song , Zhimeng Huang , Chuanmin Jia , Siwei Ma , Wen Gao

Data selection has proven its merit for improving Neural Machine Translation (NMT), when applied to authentic data. But the benefit of using synthetic data in NMT training, produced by the popular back-translation technique, raises the…

计算与语言 · 计算机科学 2019-06-20 Alberto Poncelas , Gideon Maillette de Buy Wenniger , Andy Way

In this paper, we demonstrate that non-generative, small-sized models such as FinBERT and FinDRoBERTa, when fine-tuned, can outperform GPT-3.5 and GPT-4 models in zero-shot learning settings in sentiment analysis for financial news. These…

计算与语言 · 计算机科学 2024-09-19 Baptiste Lefort , Eric Benhamou , Jean-Jacques Ohana , David Saltiel , Beatrice Guez

The performance of learning models heavily relies on the availability and adequacy of training data. To address the dataset adequacy issue, researchers have extensively explored data augmentation (DA) as a promising approach. DA generates…

计算与语言 · 计算机科学 2023-08-22 Dania Refai , Saleh Abo-Soud , Mohammad Abdel-Rahman

This study evaluates the performance of TF-IDF weighting, averaged Word2Vec embeddings, and BERT embeddings for document similarity scoring across two contrasting textual domains. By analysing cosine similarity scores, the methods'…

计算与语言 · 计算机科学 2024-12-24 Klara Kramer

Bug reports are an essential aspect of software development, and it is crucial to identify and resolve them quickly to ensure the consistent functioning of software systems. Retrieving similar bug reports from an existing database can help…

软件工程 · 计算机科学 2023-12-04 Avinash Patil , Kihwan Han , Aryan Jadon

Time series classification holds broad application value in communications, information countermeasures, finance, and medicine. However, state-of-the-art (SOTA) methods-including HIVE-COTE, Proximity Forest, and TS-CHIEF-exhibit high…

机器学习 · 计算机科学 2025-11-04 Wang Hao , Kuang Zhang , Hou Chengyu , Yuan Zhonghao , Tan Chenxing , Fu Weifeng , Zhu Yangying

Deep metric learning applied to various applications has shown promising results in identification, retrieval and recognition. Existing methods often do not consider different granularity in visual similarity. However, in many domain…

计算机视觉与模式识别 · 计算机科学 2021-05-17 Dipu Manandhar , Muhammet Bastan , Kim-Hui Yap

Numerous pre-training techniques for visual document understanding (VDU) have recently shown substantial improvements in performance across a wide range of document tasks. However, these pre-trained VDU models cannot guarantee continued…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Jiabang He , Yi Hu , Lei Wang , Xing Xu , Ning Liu , Hui Liu , Heng Tao Shen

The lack of reliable sources of detailed information on the vulnerabilities of open-source software (OSS) components is a major obstacle to maintaining a secure software supply chain and an effective vulnerability management process.…

密码学与安全 · 计算机科学 2025-03-18 Antonino Sabetta , Michele Bezzi

This study evaluates advanced natural language processing (NLP) techniques to enhance crash data quality by mining crash narratives, using secondary crash identification in Kentucky as a case study. Drawing from 16,656 manually reviewed…

计算与语言 · 计算机科学 2025-08-07 Xu Zhang , Mei Chen

The synthesis of inductive loop invariants is a critical bottleneck in automated program verification. While Large Language Models (LLMs) show promise in mitigating this issue, they often fail on hard instances, generating invariants that…

机器学习 · 计算机科学 2026-03-17 Ido Pinto , Yizhak Yisrael Elboher , Haoze Wu , Nina Narodytska , Guy Katz

The purpose of the study is to investigate the relative effectiveness of four different sentiment analysis techniques: (1) unsupervised lexicon-based model using Sent WordNet; (2) traditional supervised machine learning model using logistic…

计算与语言 · 计算机科学 2020-07-03 Shivaji Alaparthi , Manit Mishra

Cutting-edge abstractive summarisers generate fluent summaries, but the factuality of the generated text is not guaranteed. Early summary factuality evaluation metrics are usually based on n-gram overlap and embedding similarity, but are…

计算与语言 · 计算机科学 2024-09-24 Yuxuan Ye , Edwin Simpson , Raul Santos Rodriguez

Robotics datasets for imitation learning typically consist of long-horizon trajectories of different lengths over states, actions, and high-dimensional observations (e.g., RGB video), making it non-trivial to quantify diversity in a way…

机器人学 · 计算机科学 2026-03-13 Sreevardhan Sirigiri , Nathan Samuel de Lara , Christopher Agia , Florian Shkurti , Fabio Ramos

The automation of document processing is gaining recent attention due to the great potential to reduce manual work through improved methods and hardware. Neural networks have been successfully applied before - even though they have been…

计算与语言 · 计算机科学 2021-06-15 Martin Holeček

Deep neural networks (DNNs) have shown to perform very well on large scale object recognition problems and lead to widespread use for real-world applications, including situations where DNN are implemented as "black boxes". A promising…

计算机视觉与模式识别 · 计算机科学 2021-11-01 Federica Granese , Marco Romanelli , Daniele Gorla , Catuscia Palamidessi , Pablo Piantanida

Data selection techniques applied to neural machine translation (NMT) aim to increase the performance of a model by retrieving a subset of sentences for use as training data. One of the possible data selection techniques are transductive…

计算与语言 · 计算机科学 2018-11-08 Alberto Poncelas , Gideon Maillette de Buy Wenniger , Andy Way

Molecular docking is a crucial step in drug development, which enables the virtual screening of compound libraries to identify potential ligands that target proteins of interest. However, the computational complexity of traditional docking…

机器学习 · 计算机科学 2024-12-06 Zhangfan Yang , Junkai Ji , Shan He , Jianqiang Li , Tiantian He , Ruibin Bai , Zexuan Zhu , Yew Soon Ong

We present a full reference, perceptual image metric based on VGG-16, an artificial neural network trained on object classification. We fit the metric to a new database based on 140k unique images annotated with ground truth by human raters…