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Given a set $P$ of $n$ points and a set $S$ of $m$ disks in the plane, the disk coverage problem asks for a smallest subset of disks that together cover all points of $P$. The problem is NP-hard. In this paper, we consider a line-separable…

Computational Geometry · Computer Science 2024-02-06 Gang Liu , Haitao Wang

We propose a dynamic computational time model to accelerate the average processing time for recurrent visual attention (RAM). Rather than attention with a fixed number of steps for each input image, the model learns to decide when to stop…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Zhichao Li , Yi Yang , Xiao Liu , Feng Zhou , Shilei Wen , Wei Xu

One of the key factors influencing the reasoning capabilities of LLM-based agents is their ability to leverage long-term memory. Integrating long-term memory mechanisms allows agents to make informed decisions grounded in historical…

Computation and Language · Computer Science 2025-10-14 Haoran Sun , Zekun Zhang , Shaoning Zeng

Template-matching methods for visual tracking have gained popularity recently due to their good performance and fast speed. However, they lack effective ways to adapt to changes in the target object's appearance, making their tracking…

Computer Vision and Pattern Recognition · Computer Science 2019-12-02 Tianyu Yang , Antoni B. Chan

Over the last decade, there have been several data structures that, given a planar subdivision and a probability distribution over the plane, provide a way for answering point location queries that is fine-tuned for the distribution. All…

Computational Geometry · Computer Science 2012-11-01 John Iacono , Wolfgang Mulzer

Much sequential data exhibits highly non-uniform information distribution. This cannot be correctly modeled by traditional Long Short-Term Memory (LSTM). To address that, recent works have extended LSTM by adding more activations between…

Neural and Evolutionary Computing · Computer Science 2019-03-07 Yifeng Zhang , Ka-Ho Chow , S. -H. Gary Chan

Parallelization and External Memory (PEM) techniques have significantly enhanced the capabilities of search algorithms when solving large-scale problems. Previous research on PEM has primarily centered on unidirectional algorithms, with…

Artificial Intelligence · Computer Science 2025-01-06 Lior Siag , Shahaf S. Shperberg , Ariel Felner , Nathan R. Sturtevant

In this paper we introduce the first efficient external-memory algorithm to compute the bisimilarity equivalence classes of a directed acyclic graph (DAG). DAGs are commonly used to model data in a wide variety of practical applications,…

Data Structures and Algorithms · Computer Science 2018-03-05 Jelle Hellings , George H. L. Fletcher , Herman Haverkort

Attention mechanisms, especially self-attention, have played an increasingly important role in deep feature representation for visual tasks. Self-attention updates the feature at each position by computing a weighted sum of features using…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Meng-Hao Guo , Zheng-Ning Liu , Tai-Jiang Mu , Shi-Min Hu

Efficiently computing attention maps for videos is challenging due to the motion of objects between frames. While a standard non-local search is high-quality for a window surrounding each query point, the window's small size cannot…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Kent Gauen , Stanley Chan

Given a source image and a driving video depicting the same object type, the motion transfer task aims to generate a video by learning the motion from the driving video while preserving the appearance from the source image. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Jiale Tao , Biao Wang , Borun Xu , Tiezheng Ge , Yuning Jiang , Wen Li , Lixin Duan

We give new upper and lower bounds for the {\em dynamic} set cover problem. First, we give a $(1+\epsilon) f$-approximation for fully dynamic set cover in $O(f^2\log n /\epsilon^5)$ (amortized) update time, for any $\epsilon > 0$, where $f$…

Data Structures and Algorithms · Computer Science 2019-05-16 Amir Abboud , Raghavendra Addanki , Fabrizio Grandoni , Debmalya Panigrahi , Barna Saha

In this paper, we address the dynamic Emergency Medical Service (EMS) systems. A dynamic location model is presented that tries to locate and relocate the ambulances. The proposed model controls the movements and locations of ambulances in…

Artificial Intelligence · Computer Science 2014-04-15 Mahdi Moeini , Zied Jemai , Evren Sahin

Rearranging objects in cluttered tabletop environments remains a long-standing challenge in robotics. Classical planners often generate inefficient, high-cost plans by shuffling objects individually and using fixed buffers--temporary spaces…

Robotics · Computer Science 2025-09-30 Arman Barghi , Hamed Hosseini , Seraj Ghasemi , Mehdi Tale Masouleh , Ahmad Kalhor

Simultaneous Localization and Mapping (SLAM) has wide robotic applications such as autonomous driving and unmanned aerial vehicles. Both computational efficiency and localization accuracy are of great importance towards a good SLAM system.…

Robotics · Computer Science 2022-01-10 Han Wang , Chen Wang , Chun-Lin Chen , Lihua Xie

In this paper, we revisit the question of how the dynamic optimality of search trees should be defined in external memory. A defining characteristic of external-memory data structures is that there is a stark asymmetry between queries and…

Data Structures and Algorithms · Computer Science 2022-04-22 Michael A. Bender , Martín Farach-Colton , William Kuszmaul

Byte-addressable persistent memory (PM) brings hash tables the potential of low latency, cheap persistence and instant recovery. The recent advent of Intel Optane DC Persistent Memory Modules (DCPMM) further accelerates this trend. Many new…

Databases · Computer Science 2020-10-30 Baotong Lu , Xiangpeng Hao , Tianzheng Wang , Eric Lo

Efficient search is a core issue in Neural Architecture Search (NAS). It is difficult for conventional NAS algorithms to directly search the architectures on large-scale tasks like ImageNet. In general, the cost of GPU hours for NAS grows…

Computer Vision and Pattern Recognition · Computer Science 2020-03-30 Xiyang Dai , Dongdong Chen , Mengchen Liu , Yinpeng Chen , Lu Yuan

This paper considers enumerating answers to similarity-join queries under dynamic updates: Given two sets of $n$ points $A,B$ in $\mathbb{R}^d$, a metric $\phi(\cdot)$, and a distance threshold $r > 0$, report all pairs of points $(a, b)…

Data Structures and Algorithms · Computer Science 2021-05-06 Pankaj K. Agarwal , Xiao Hu , Stavros Sintos , Jun Yang

Template-matching methods for visual tracking have gained popularity recently due to their comparable performance and fast speed. However, they lack effective ways to adapt to changes in the target object's appearance, making their tracking…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Tianyu Yang , Antoni B. Chan