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- W3105673753 abstract "Similarity search queries in high-dimensional spaces are an important type of queries in many domains such as image processing, machine learning, etc. %Since exact similarity search indexing techniques suffer from the well-knowncurse of dimensionality in high-dimensional spaces, approximate search techniques are often utilized instead. Locality Sensitive Hashing (LSH) has been shown to be an effective approximate search method for solving similarity search queries in high-dimensional spaces. Often, queries in real-world settings arrive as part of a query workload. LSH and its variants are particularly designed to solve single queries effectively. They suffer from one major drawback while executing query workloads: they do not take into consideration important data characteristics for effective cache utilization while designing the index structures. In this paper, we presentqwLSH, an index structure %for efficiently processing similarity search query workloads in high-dimensional spaces. We that intelligently divides a given cache during processing of a query workload by using novel cost models. Experimental results show that, given a query workload,qwLSH is able to perform faster than existing techniques due to its unique cost models and strategies to reduce cache misses. %We further present different caching strategies for efficiently processing similarity search query workloads. We evaluate our proposed unique design and cost models ofqwLSH on real datasets against state-of-the-art LSH-based techniques." @default.
- W3105673753 created "2020-11-23" @default.
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- W3105673753 date "2019-06-05" @default.
- W3105673753 modified "2023-09-25" @default.
- W3105673753 title "qwLSH" @default.
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- W3105673753 doi "https://doi.org/10.1145/3323873.3325048" @default.
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