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Building robust and generic object detection frameworks requires scaling to larger label spaces and bigger training datasets. However, it is prohibitively costly to acquire annotations for thousands of categories at a large scale. We…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Shiyu Zhao , Zhixing Zhang , Samuel Schulter , Long Zhao , Vijay Kumar B. G , Anastasis Stathopoulos , Manmohan Chandraker , Dimitris Metaxas

We give a characterization of the sets of objects of the derived category of a block of a finite group algebra (or other symmetric algebra) that occur as the set of images of simple modules under an equivalence of derived categories. We…

Representation Theory · Mathematics 2007-05-23 Jeremy Rickard

Symmetries are key properties of physical models and of experimental designs, but any proposed symmetry may or may not be realized in nature. In this paper, we introduce a practical and general method to test such suspected symmetries in…

High Energy Physics - Phenomenology · Physics 2022-08-25 Rupert Tombs , Christopher G. Lester

This paper provides a framework to hash images containing instances of unknown object classes. In many object recognition problems, we might have access to huge amount of data. It may so happen that even this huge data doesn't cover the…

Computer Vision and Pattern Recognition · Computer Science 2016-10-11 Shubham Pachori , Shanmuganathan Raman

This paper explores the size-invariance of evaluation metrics in Salient Object Detection (SOD), especially when multiple targets of diverse sizes co-exist in the same image. We observe that current metrics are size-sensitive, where larger…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Feiran Li , Qianqian Xu , Shilong Bao , Zhiyong Yang , Runmin Cong , Xiaochun Cao , Qingming Huang

In this paper, we study the problem of unsupervised object segmentation from single images. We do not introduce a new algorithm, but systematically investigate the effectiveness of existing unsupervised models on challenging real-world…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Yafei Yang , Bo Yang

We tackle the problem of one-shot segmentation: finding and segmenting a previously unseen object in a cluttered scene based on a single instruction example. We propose a novel dataset, which we call $\textit{cluttered Omniglot}$. Using a…

Computer Vision and Pattern Recognition · Computer Science 2018-06-14 Claudio Michaelis , Matthias Bethge , Alexander S. Ecker

Unsupervised object discovery aims to localize objects in images, while removing the dependence on annotations required by most deep learning-based methods. To address this problem, we propose a fully unsupervised, bottom-up approach, for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Sandra Kara , Hejer Ammar , Florian Chabot , Quoc-Cuong Pham

A fundamental task in detecting foreground objects in both static and dynamic scenes is to take the best choice of color system representation and the efficient technique for background modeling. We propose in this paper a non-parametric…

Computer Vision and Pattern Recognition · Computer Science 2009-12-14 Ali Douik , Mourad Moussa Jlassi

We introduce a novel framework to build a model that can learn how to segment objects from a collection of images without any human annotation. Our method builds on the observation that the location of object segments can be perturbed…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Adam Bielski , Paolo Favaro

A systematic procedure is developed for constructing fermion systems in discrete space-time which have a given outer symmetry. The construction is illustrated by simple examples. For the symmetric group, we derive constraints for the number…

Mathematical Physics · Physics 2014-01-28 Felix Finster

Unambiguous measurements play an important role in quantum information, with applications ranging from quantum key distribution to quantum state reconstruction. Recently, such measurements have also been used in quantum algorithms based on…

Quantum Physics · Physics 2025-11-05 Quentin Buzet , André Chailloux

Distribution testing deals with what information can be deduced about an unknown distribution over $\{1,\ldots,n\}$, where the algorithm is only allowed to obtain a relatively small number of independent samples from the distribution. In…

Computational Complexity · Computer Science 2016-09-23 Eldar Fischer , Oded Lachish , Yadu Vasudev

Elegant Objects (EO) is a programming language based on ideas of pure objects and the Decorator pattern. Bugayenko has suggested it as an intermediate representation for object-oriented programs. This paper presents a version of dynamic…

Programming Languages · Computer Science 2022-10-17 Vitaliy Korbashov , Nikolai Kudasov , Mikhail Olokin , Violetta Sim

An applied problem facing all areas of data science is harmonizing data sources. Joining data from multiple origins with unmapped and only partially overlapping features is a prerequisite to developing and testing robust, generalizable…

Interpreting camera data is key for autonomously acting systems, such as autonomous vehicles. Vision systems that operate in real-world environments must be able to understand their surroundings and need the ability to deal with novel…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Matteo Sodano , Federico Magistri , Lucas Nunes , Jens Behley , Cyrill Stachniss

We study a class of realistic computer vision settings wherein one can influence the design of the objects being recognized. We develop a framework that leverages this capability to significantly improve vision models' performance and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-23 Hadi Salman , Andrew Ilyas , Logan Engstrom , Sai Vemprala , Aleksander Madry , Ashish Kapoor

Dependent symmetries, symmetries that depend on the situation of the subsystem in a larger closed system, are explored by looking at simple examples. This is a new kind of symmetry in the open quantum dynamics of a subsystem Each symmetry…

Quantum Physics · Physics 2016-11-11 Thomas F. Jordan , San Ha Seo

We consider 1D quantum scattering problem for a Hamiltonian with symmetries. We show that the proper treatment of symmetries in the spirit of homological algebra leads to new objects, generalizing the well known T- and K-matrices.…

Mathematical Physics · Physics 2023-04-12 Andrey S. Losev , Tim V. Sulimov

We say a structure $M$ in a first-order language is indivisible if for every coloring of its universe in two colors, there is a monochromatic substructure $M'$ of $M$ such that $M'$ is isomorphic to $M$. Additionally, we say that $M$ is…

Logic · Mathematics 2019-09-04 Nadav Meir
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