Enhancing privacy and trust in electronic communities

A major impediment to using recommendation systems and collective knowledge for electronic commerce is the reluctance of individuals to reveal preferences in order to nd groups of people that share them. An equally important barrier to uid electronic commerce is the lack of agreed upon trusted third parties. We propose new non-third party mechanisms to overcome these barriers. Our solutions facilitate nding shared preferences, discovering communities with shared values, removing disincentives posed by liabilities, and negotiating on behalf of a group. We adapt known techniques from the cryptographic literature to enable these new capabilities.

• Type: Conference
• Year: 1999
• Where: SIGECOM
• Authors: Bernardo A. Huberman, Matthew K. Franklin, Tad Hogg
• Keywords: ECommerce, Electronic Commerce, Major Impediment, Non-third Party Mechanisms, SIGECOM 1999