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Semantically coherent out-of-distribution (SCOOD) detection aims to discern outliers from the intended data distribution with access to unlabeled extra set. The coexistence of in-distribution and out-of-distribution samples will exacerbate…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Fan Lu , Kai Zhu , Wei Zhai , Kecheng Zheng , Yang Cao

Due to their ease of use and high accuracy, Word2Vec (W2V) word embeddings enjoy great success in the semantic representation of words, sentences, and whole documents as well as for semantic similarity estimation. However, they have the…

计算与语言 · 计算机科学 2024-01-10 Tim vor der Brück , Marc Pouly

Label hierarchies widely exist in many vision-related problems, ranging from explicit label hierarchies existed in image classification to latent label hierarchies existed in semantic segmentation. Nevertheless, state-of-the-art methods…

计算机视觉与模式识别 · 计算机科学 2019-11-19 Hao-Yun Chen , Li-Huang Tsai , Shih-Chieh Chang , Jia-Yu Pan , Yu-Ting Chen , Wei Wei , Da-Cheng Juan

We introduce a Recursive INsertion-based Encoder (RINE), a novel approach for semantic parsing in task-oriented dialog. Our model consists of an encoder network that incrementally builds the semantic parse tree by predicting the…

计算与语言 · 计算机科学 2022-03-22 Elman Mansimov , Yi Zhang

Autonomous driving requires self awareness of its perception functions. Technically spoken, this can be realized by observers, which monitor the performance indicators of various perception modules. In this work we choose, exemplarily, a…

计算机视觉与模式识别 · 计算机科学 2020-06-17 Jonas Löhdefink , Justin Fehrling , Marvin Klingner , Fabian Hüger , Peter Schlicht , Nico M. Schmidt , Tim Fingscheidt

In deep neural networks, better results can often be obtained by increasing the complexity of previously developed basic models. However, it is unclear whether there is a way to boost performance by decreasing the complexity of such models.…

机器学习 · 计算机科学 2021-09-07 Junran Wu , Jianhao Li , Yicheng Pan , Ke Xu

Word and graph embeddings are widely used in deep learning applications. We present a data structure that captures inherent hierarchical properties from an unordered flat embedding space, particularly a sense of direction between pairs of…

计算与语言 · 计算机科学 2024-11-12 Xingzhi Guo , Steven Skiena

Learning discriminative representations is a central goal of supervised deep learning. While cross-entropy (CE) remains the dominant objective for classification, it does not explicitly enforce desirable geometric properties in the…

机器学习 · 计算机科学 2026-04-13 Matheus Vinícius Todescato , Joel Luís Carbonera

Concept Bottleneck Models (CBMs) try to make the decision-making process transparent by exploring an intermediate concept space between the input image and the output prediction. Existing CBMs just learn coarse-grained relations between the…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Yan Xie , Zequn Zeng , Hao Zhang , Yucheng Ding , Yi Wang , Zhengjue Wang , Bo Chen , Hongwei Liu

Recently, substantial research efforts in Deep Metric Learning (DML) focused on designing complex pairwise-distance losses, which require convoluted schemes to ease optimization, such as sample mining or pair weighting. The standard…

In this paper, we develop an approach that enables autonomous robots to build and compress semantic environment representations from point-cloud data. Our approach builds a three-dimensional, semantic tree representation of the environment…

机器人学 · 计算机科学 2022-09-22 Daniel T. Larsson , Arash Asgharivaskasi , Jaein Lim , Nikolay Atanasov , Panagiotis Tsiotras

The cross entropy loss is widely used due to its effectiveness and solid theoretical grounding. However, as training progresses, the loss tends to focus on hard to classify samples, which may prevent the network from obtaining gains in…

机器学习 · 计算机科学 2021-09-14 Barak Battash , Lior Wolf , Tamir Hazan

Safety-critical applications such as autonomous driving require robust 3D environment perception algorithms capable of handling diverse and ambiguous surroundings. The predictive performance of classification models is heavily influenced by…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Mariella Dreissig , Simon Ruehle , Florian Piewak , Joschka Boedecker

The matching principles behind optimal transport (OT) play an increasingly important role in machine learning, a trend which can be observed when OT is used to disambiguate datasets in applications (e.g. single-cell genomics) or used to…

机器学习 · 统计学 2022-09-16 Meyer Scetbon , Marco Cuturi

This paper investigates the deep learning optimization problem with softmax cross-entropy loss. We propose a layer separation strategy to alleviate the strong nonconvexity encountered during training deep networks. For cross-entropy models…

机器学习 · 计算机科学 2026-04-28 Yaru Liu , Michael K. Ng , Yiqi Gu

Many neural networks deployed in the real world scenarios are trained using cross entropy based loss functions. From the optimization perspective, it is known that the behavior of first order methods such as gradient descent crucially…

机器学习 · 计算机科学 2023-10-09 Zhu Wang , Praveen Raj Veluswami , Harsh Mishra , Sathya N. Ravi

Neural language models are probabilistic models of human text. They are predominantly trained using maximum likelihood estimation (MLE), which is equivalent to minimizing the forward cross-entropy between the empirical data distribution and…

计算与语言 · 计算机科学 2024-02-07 Siyu Ren , Zhiyong Wu , Kenny Q. Zhu

Denoising autoencoders (DAEs) are powerful deep learning models used for feature extraction, data generation and network pre-training. DAEs consist of an encoder and decoder which may be trained simultaneously to minimise a loss (function)…

计算机视觉与模式识别 · 计算机科学 2017-10-10 Antonia Creswell , Kai Arulkumaran , Anil A. Bharath

Hierarchical multi-label classification (HMLC) is essential for modeling structured label dependencies in remote sensing. Yet existing approaches struggle in multi-path settings, where images may activate multiple taxonomic branches,…

计算机视觉与模式识别 · 计算机科学 2026-04-01 Boshko Koloski , Marjan Stoimchev , Jurica Levatić , Dragi Kocev , Sašo Džeroski

Semantic communication initiates a new direction for future communication. In this paper, we aim to establish a systematic framework of semantic information theory (SIT). First, we propose a semantic communication model and define the…

信息论 · 计算机科学 2024-01-26 Kai Niu , Ping Zhang