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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence

Efficient Querying from Weighted Binary Codes

February 1, 2023

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Authors

Zhenyu Weng

Peking University


Yuesheng Zhu

Peking University


DOI:

10.1609/aaai.v34i07.6919


Abstract:

Binary codes are widely used to represent the data due to their small storage and efficient computation. However, there exists an ambiguity problem that lots of binary codes share the same Hamming distance to a query. To alleviate the ambiguity problem, weighted binary codes assign different weights to each bit of binary codes and compare the binary codes by the weighted Hamming distance. Till now, performing the querying from the weighted binary codes efficiently is still an open issue. In this paper, we propose a new method to rank the weighted binary codes and return the nearest weighted binary codes of the query efficiently. In our method, based on the multi-index hash tables, two algorithms, the table bucket finding algorithm and the table merging algorithm, are proposed to select the nearest weighted binary codes of the query in a non-exhaustive and accurate way. The proposed algorithms are justified by proving their theoretic properties. The experiments on three large-scale datasets validate both the search efficiency and the search accuracy of our method. Especially for the number of weighted binary codes up to one billion, our method shows a great improvement of more than 1000 times faster than the linear scan.

Topics: AAAI

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HOW TO CITE:

Zhenyu Weng||Yuesheng Zhu Efficient Querying from Weighted Binary Codes Proceedings of the AAAI Conference on Artificial Intelligence (2020) 12346-12353.

Zhenyu Weng||Yuesheng Zhu Efficient Querying from Weighted Binary Codes AAAI 2020, 12346-12353.

Zhenyu Weng||Yuesheng Zhu (2020). Efficient Querying from Weighted Binary Codes. Proceedings of the AAAI Conference on Artificial Intelligence, 12346-12353.

Zhenyu Weng||Yuesheng Zhu. Efficient Querying from Weighted Binary Codes. Proceedings of the AAAI Conference on Artificial Intelligence 2020 p.12346-12353.

Zhenyu Weng||Yuesheng Zhu. 2020. Efficient Querying from Weighted Binary Codes. "Proceedings of the AAAI Conference on Artificial Intelligence". 12346-12353.

Zhenyu Weng||Yuesheng Zhu. (2020) "Efficient Querying from Weighted Binary Codes", Proceedings of the AAAI Conference on Artificial Intelligence, p.12346-12353

Zhenyu Weng||Yuesheng Zhu, "Efficient Querying from Weighted Binary Codes", AAAI, p.12346-12353, 2020.

Zhenyu Weng||Yuesheng Zhu. "Efficient Querying from Weighted Binary Codes". Proceedings of the AAAI Conference on Artificial Intelligence, 2020, p.12346-12353.

Zhenyu Weng||Yuesheng Zhu. "Efficient Querying from Weighted Binary Codes". Proceedings of the AAAI Conference on Artificial Intelligence, (2020): 12346-12353.

Zhenyu Weng||Yuesheng Zhu. Efficient Querying from Weighted Binary Codes. AAAI[Internet]. 2020[cited 2023]; 12346-12353.


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
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