20 results for “Hash indexes”
CS papers onlyHybrid search: Keyword + semantic, ranked by combined score.ⓘ
Want pure semantic search? Try claim verification →
Bing Wu, Xueliang Wei, Shiyi Song, Yibo Liu +5 more
The paper introduces PATH, an in-situ indexing architecture for Processing-in-Memory systems that achieves higher throughput, lower tail latency, and fewer memory accesses than state-of-the-art scheme…
Clark Hash is a stateless, deterministic quantization method that significantly reduces the storage size of neural embeddings while maintaining high accuracy for cosine similarity search.
This paper proposes a non-greedy insertion strategy for linear probing hash tables, improving worst-case expected insertion time from Θ(x^2) to O(x log x).
This paper presents an index for the maximum segment sum problem with query offset and range, using O(log^2 n) query time and O(n log n) space.
This paper presents a lock-free linear-probing hash table with wait-free lookups, using a small amount of metadata and maintaining space efficiency.
This paper introduces a new way to represent finite posets as subwords of finite words in categories, and characterizes the monic categories that admit this representation.
This paper presents a cryptanalytic attack demonstrating that a specific code-based Private Information Retrieval (PIR) scheme can be broken, allowing the server to efficiently determine the requested…
This paper proposes Yi, a system for efficient and effective in-place updates in large-scale vector indexing, achieving higher update and search throughput than state-of-the-art methods.
This paper introduces MultiHashFormer, a framework for hash-based autoregression in language models, which allows for parameter efficiency while avoiding many-to-one collisions.
ACRONYM is a novel algorithm-hardware co-designed platform that enables high-recall, continuous approximate nearest neighbor search in memory for dynamic vector databases, achieving massive throughput…
This paper proposes Stringology-Based Cryptology (SBC), a novel approach that analyzes the structural properties of cryptographic outputs by treating them as symbolic sequences, offering complementary…
Hyesung Ji, Hyunah Yu, Jongmin Kim, Wonseok Choi +2 more
GPIR is a GPU-accelerated Private Information Retrieval (PIR) system that significantly boosts throughput by introducing a stage-aware hybrid execution model and optimizing data layouts for modern GPU…
This paper improves the time complexity of exact algorithms for converting a connected graph into a cactus by reducing it from O*(3^n) to O*(2^n) for unweighted graphs, and provides faster algorithms…
This paper proposes a splay-like rotation design for concurrent binary search trees to preserve the main benefit of splaying on skewed workloads while reducing contention near the root.
The paper systematically evaluates static and dynamic adversarial attacks on the ALEX learned index, finding that while static poisoning has minimal impact, dynamic attacks can cause significant slowd…
Yu Liu, Kun Peng, Wenxiao Zhang, Fangfang Yuan +3 more
Trans-RAG introduces a novel query-centric vector transformation technique to enable secure, efficient, and accurate cross-organizational retrieval in RAG systems without plaintext decryption.
This paper introduces DiStash, a disaggregated transactional key-value store that enables an application to use a single transaction to manage key-value pairs across different pools of stashes, preven…
This paper presents methods for ranking and unranking permutations avoiding a pattern of length three in lexicographic or colexicographic order.