Privacy-preserving aggregation in life cycle assessment
Privacy-preserving aggregation in life cycle assessment
复制标题
生命周期评估中的隐私保护聚合
DOI:
10.1007/s10669-016-9620-7
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发表时间:
2017
影响因子:
--
通讯作者:
El Abbadi, Amr
中科院分区:
文献类型:
--
作者:
Kuczenski, Brandon;Sahin, Cetin;El Abbadi, Amr
Life cycle assessment (LCA) is the standard technique used to make a quantitative evaluation about the ecological sustainability of a product or service. The life cycle inventory (LCI) data sets that provide input to LCA computations can express essential information about the operation of a process or production step. As a consequence, LCI data are often regarded as confidential and are typically concealed through aggregation with other data sets. Despite the importance of privacy protection in publishing LCA studies, the community lacks a formal framework for managing private data, and no techniques exist for performing aggregation of LCI data sets that preserve the privacy of input data. However, emerging computational techniques known as “secure multiparty computation” enable data contributors to jointly compute numerical results without enabling any party to determine another party’s private data. In the proposed approach, parties who agree on a shared computation model, but do not trust one another and also do not trust a common third party, can collaboratively compute a weighted average of an LCA metric without sharing their private data with any other party. First, we formulate the LCA aggregation problem as an inner product over a foreground inventory model. Then, we show how LCA aggregations can be computed as the ratio of two secure sums. The protocol is useful when preparing LCA studies involving mutually competitive firms.
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DOI:
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发表时间:
2011
期刊:
影响因子:
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作者:
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通讯作者:
O. Jolliet
DOI:
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发表时间:
2011
期刊:
International Conference on Interaction Sciences
影响因子:
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作者:
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通讯作者:
Thomas G. Koslowski
DOI:
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发表时间:
2017
期刊:
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通讯作者:
Y. Sheffi
DOI:
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发表时间:
2014
期刊:
The International Journal of Life Cycle Assessment
影响因子:
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作者:
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通讯作者:
L. Breuer
DOI:
--
发表时间:
2004
期刊:
影响因子:
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作者:
R. Frischknecht
通讯作者:
R. Frischknecht