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Diffusion models (DMs) are powerful generative models capable of producing high-fidelity images but are constrained by high computational costs due to iterative multi-step inference. While Neural Architecture Search (NAS) can optimize DMs,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Hongtao Huang , Xiaojun Chang , Lina Yao

Ubiquitous artificial intelligence (AI) is considered one of the key services in 6G systems. AI services typically rely on deep neural network (DNN) requiring heavy computation. Hence, in order to support ubiquitous AI, it is crucial to…

Networking and Internet Architecture · Computer Science 2022-07-27 Sehun Jung , Hyang-Won Lee

Vector approximate nearest neighbor search (ANNS) underpins search engines, recommendation systems, and advertising services. Recent advances in ANNS indexes make CPU a cost-effective choice for serving million-scale, in-memory vector…

Information Retrieval · Computer Science 2026-05-12 Yuchen Huang , Baiteng Ma , Yiping Sun , Yang Shi , Xiao Chen , Xiaocheng Zhong , Zhiyong Wang , Yao Hu , Chuliang Weng

Recent advances in Neural Architecture Search (NAS) such as one-shot NAS offer the ability to extract specialized hardware-aware sub-network configurations from a task-specific super-network. While considerable effort has been employed…

Machine Learning · Computer Science 2022-05-24 Daniel Cummings , Anthony Sarah , Sharath Nittur Sridhar , Maciej Szankin , Juan Pablo Munoz , Sairam Sundaresan

Approximate nearest neighbor (ANN) search is a fundamental problem in computer science for which in-memory graph-based methods, such as Hierarchical Navigable Small World (HNSW), perform exceptionally well. To scale beyond billions of…

Databases · Computer Science 2025-07-24 Manuel Widmoser , Daniel Kocher , Nikolaus Augsten

In Smart Grid applications, as the number of deployed electric smart meters increases, massive amounts of valuable meter data is generated and collected every day. To enable reliable data collection and make business decisions fast, high…

Databases · Computer Science 2014-07-10 Yue Liu , Songlin Hu , Tilmann Rabl , Wantao Liu , Hans-Arno Jacobsen , Kaifeng Wu , Jian Chen , Jintao Li

Range-filtered approximate nearest neighbor search (RFANNS) is increasingly critical for modern vector databases. However, existing solutions suffer from severe index inflation and construction overhead. Furthermore, they rely exclusively…

Databases · Computer Science 2026-04-28 Zhonggen Li , Haoran Yu , Zixuan Xu , Yifan Zhu , Yunjun Gao

Filtered ANN search is an increasingly important problem in vector retrieval, yet systems face a difficult trade-off due to the execution order: Pre-filtering (filtering first, then ANN over the passing subset) requires expensive…

Databases · Computer Science 2026-02-23 Zhuocheng Gan , Yifan Wang

Approximate Nearest Neighbor Search (ANNS) is a fundamental operation in vector databases, enabling efficient similarity search in high-dimensional spaces. While dense ANNS has been optimized using specialized hardware accelerators, sparse…

Databases · Computer Science 2026-01-07 Tianqi Zhang , Flavio Ponzina , Tajana Rosing

We present a novel search optimization solution for approximate nearest neighbor (ANN) search on resource-constrained edge devices. Traditional ANN approaches fall short in meeting the specific demands of real-world scenarios, e.g., skewed…

Information Retrieval · Computer Science 2023-12-13 Jianwei Zhang , Helian Feng , Xin He , Grant P. Strimel , Farhad Ghassemi , Ali Kebarighotbi

Approximate nearest neighbor (ANN) search in high dimensions is an integral part of several computer vision systems and gains importance in deep learning with explicit memory representations. Since PQT, FAISS, and SONG started to leverage…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Fabian Groh , Lukas Ruppert , Patrick Wieschollek , Hendrik P. A. Lensch

Spiking Neural Networks (SNNs) have gained huge attention as a potential energy-efficient alternative to conventional Artificial Neural Networks (ANNs) due to their inherent high-sparsity activation. However, most prior SNN methods use…

Neural and Evolutionary Computing · Computer Science 2022-07-22 Youngeun Kim , Yuhang Li , Hyoungseob Park , Yeshwanth Venkatesha , Priyadarshini Panda

Interprocedural data-flow analyses form an expressive and useful paradigm of numerous static analysis applications, such as live variables analysis, alias analysis and null pointers analysis. The most widely-used framework for…

Data Structures and Algorithms · Computer Science 2020-04-16 Krishnendu Chatterjee , Amir Kafshdar Goharshady , Rasmus Ibsen-Jensen , Andreas Pavlogiannis

Graph-based approximate nearest neighbor search (ANNS) methods (e.g., HNSW) have become the de facto state of the art for their high precision and low latency. To scale beyond main memory, recent out-of-memory ANNS systems leverage SSDs to…

Databases · Computer Science 2026-02-27 Weichen Zhao , Yuncheng Lu , Yao Tian , Hao Zhang , Jiehui Li , Minghao Zhao , Yakun Li , Weining Qian

In the field of complex action recognition in videos, the quality of the designed model plays a crucial role in the final performance. However, artificially designed network structures often rely heavily on the researchers' knowledge and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Pengzhen Ren , Gang Xiao , Xiaojun Chang , Yun Xiao , Zhihui Li , Xiaojiang Chen

Frequent Subgraph Mining (FSM) is the key task in many graph mining and machine learning applications. Numerous systems have been proposed for FSM in the past decade. Although these systems show good performance for small patterns (with no…

Databases · Computer Science 2021-02-09 Peng Jiang , Rujia Wang , Bo Wu

The increasing pervasiveness of intelligent mobile applications requires to exploit the full range of resources offered by the mobile-edge-cloud network for the execution of inference tasks. However, due to the heterogeneity of such…

Networking and Internet Architecture · Computer Science 2024-04-15 Chetna Singhal , Yashuo Wu , Francesco Malandrino , Marco Levorato , Carla Fabiana Chiasserini

Depth First Search (DFS) tree is a fundamental data structure for solving graph problems. The DFS tree of a graph $G$ with $n$ vertices and $m$ edges can be built in $O(m+n)$ time. Till date, only a few algorithms have been designed for…

Data Structures and Algorithms · Computer Science 2017-05-09 Surender Baswana , Ayush Goel , Shahbaz Khan

Modern retrieval systems increasingly require integrating approximate nearest neighbor search (ANNS) with complex attribute filtering to handle hybrid queries in applications such as recommendation systems and retrieval-augmented generation…

Information Retrieval · Computer Science 2026-05-11 Junjie Song , Yu Liu , Guoyu Hu , Zhongle Xie , Ming Yang , Beng Chin Ooi , Ke Zhou

Benefiting from the search efficiency, differentiable neural architecture search (NAS) has evolved as the most dominant alternative to automatically design competitive deep neural networks (DNNs). We note that DNNs must be executed under…

Machine Learning · Computer Science 2022-09-01 Xiangzhong Luo , Di Liu , Hao Kong , Shuo Huai , Hui Chen , Weichen Liu