SDCI Data New: Trust Management for Open Collaborative Information Repositories: The CalSWIM Cyberinfrastructure

SDCI 数据新内容：开放式协作信息存储库的信任管理：CalSWIM 网络基础设施

• 批准号: 0724806
• 负责人: Cristina Lopes
• 金额: --
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0724806&HistoricalAwards=false
• 关键词: SDCI; Data; New; Trust; Management

SDCI Data New: Trust Management for Open Collaborative Information Repositories: The CalSWIM CyberinfrastructureCristina Videira Lopes (PI), Michael Goodrich (co-PI), and Stanley Grant (co-PI) of University of California, Irvine, with Roberto Tamassia (subcontractor) of Brown UniversityThe California Sustainable Watershed Information Manager (CalSWIM: http://calswim.org) is a cyberinfrastructure supporting the dissemination and analysis of watershed information in Southern California. CalSWIM provides watershed stakeholders ? scientists, regulators, and the general public ? access to stream monitoring data and relevant GIS geospatial data, and the ability to analyze data with modeling tools of varying sophistication. Like so many other scientific cyberinfrastructures, the CalSWIM web site has been a closed infrastructure, i.e. its update has been controlled by a small number of individuals, and any changes to it require the intervention of web-knowledgeable professionals. This model does not scale to the ambition of the CalSWIM project. In order to make this cyberinfrastructure sustainable, expandable, outreaching, and continually up-to-date, we are currently transforming CalSWIM into an Open Collaborative Information Repository, in the form of a wiki with advanced content management features, including databases, GIS layers, and other forms of digital data. By opening CalSWIM in a wiki manner, we empower the domain experts to update the site directly, without requiring them to have web programming knowledge. We also provide a framework for engaging the general public in the process, therefore benefiting from the public's critical supervision of the content, and from valuable volunteer contributions that cannot occur in a closed infrastructure. The current work aims at creating a publicly updatable encyclopedia of ?all things watershed? that includes all watersheds in California. Open information infrastructures such as the one we are developing are sometimes met with skepticism from their users. The chaotic nature of Wikipedia ? one the most visible collaborative information repositories ? will not be appropriate for open cyberinfrastructures supporting collaboration over scientific and regulatory information. The CalSWIM wiki will only succeed if issues of trust are taken into consideration in its design. Trust is a complex concept based on personal and social factors, that includes assurances about data security, knowledge about data provenance, knowledge about authors' reputations, and assurances about author attribution (citations and quotations) in uncontrolled contexts. This project will design, develop, and deploy a trust layer on top of open information repositories, such as the CalSWIM wiki, that will minimize the existence of poor-quality information and also minimize the effect of malicious information manipulation. Our approach is based on a mixture of access control systems, reputation management systems, and data integrity algorithms. More specifically, the outputs of this project will be: (1) A new trust management model specifically designed to address the needs of collaborative scientific and regulatory information repositories, where the addition of data and the creation of data analyses is open to scientists, regulatory agencies, interest groups, and the general public. This trust model will be implemented as a software package, and it will be made publicly available as open source. (2) A new method and visualization system for ensuring the integrity of data used (i.e., ?quoted?) in uncontrolled contexts based on cryptographic hash functions and prooflets. (3) A concrete deployment of the previous two items in one specific cyberinfrastructure, CalSWIM, along with an assessment of how effective they are in managing trust.Although the CalSWIM wiki is the concrete cyberinfrastructure on which this trust management component will be deployed, the trust management component developed in this project can be applied to a variety of Collaborative Information Repositories that share the properties of CalSWIM ? namely, data-based collaboration between scientists, regulatory agencies, and the general public. We will disseminate the results of this project and make it widely available to other groups by using the open source model and by making an outreach effort to those organizations that could benefit from adopting this model.

SDCI 数据新内容：开放式协作信息存储库的信任管理：CalSWIM 网络基础设施加州大学欧文分校的 Cristina Videira Lopes (PI)、Michael Goodrich（联合 PI）和 Stanley Grant（联合 PI）以及 Roberto Tamassia（分包商）布朗大学的加州可持续流域信息管理器（CalSWIM：http://calswim.org）是一个网络基础设施，支持南加州流域信息的传播和分析。 CalSWIM 为利益相关者提供了分水岭？科学家、监管者和公众？访问流监测数据和相关 GIS 地理空间数据，以及使用不同复杂程度的建模工具分析数据的能力。与许多其他科学网络基础设施一样，CalSWIM 网站是一个封闭的基础设施，即其更新由少数人控制，任何更改都需要精通网络的专业人员的干预。该模型无法满足 CalSWIM 项目的雄心壮志。为了使这一网络基础设施可持续、可扩展、外展并不断更新，我们目前正在将 CalSWIM 转变为一个开放式协作信息存储库，采用具有高级内容管理功能的 wiki 形式，包括数据库、GIS 层、以及其他形式的数字数据。通过以 wiki 方式打开 CalSWIM，我们使领域专家能够直接更新网站，而无需他们具备网络编程知识。我们还提供了一个让公众参与这一过程的框架，从而受益于公众对内容的严格监督，以及在封闭的基础设施中无法实现的有价值的志愿者贡献。目前的工作旨在创建一个可公开更新的“所有事物分水岭”的百科全书。其中包括加利福尼亚州的所有流域。像我们正在开发的开放信息基础设施有时会遭到用户的怀疑。维基百科的混乱本质？最明显的协作信息存储库之一？不适用于支持科学和监管信息协作的开放网络基础设施。只有在设计中考虑到信任问题，CalSWIM wiki 才会成功。信任是一个基于个人和社会因素的复杂概念，包括对数据安全的保证、对数据来源​​的了解、对作者声誉的了解，以及在不受控制的情况下对作者归属（引用和引用）的保证。该项目将在开放信息存储库（例如 CalSWIM wiki）之上设计、开发和部署信任层，这将最大限度地减少低质量信息的存在，并最大限度地减少恶意信息操纵的影响。我们的方法基于访问控制系统、声誉管理系统和数据完整性算法的混合。更具体地说，该项目的成果将是：（1）专门为满足协作科学和监管信息存储库的需求而设计的新信任管理模型，其中数据的添加和数据分析的创建对科学家、监管机构开放机构、利益集团和公众。该信任模型将作为软件包实施，并将作为开源公开发布。 (2) 一种新的方法和可视化系统，用于基于加密散列函数和prooflet，确保在不受控制的上下文中使用的数据（即“引用”）的完整性。 (3) 在一个特定的网络基础设施 CalSWIM 中具体部署前两项，并评估它们在管理信任方面的有效性。虽然 CalSWIM wiki 是部署此信任管理组件的具体网络基础设施，但该项目中开发的信任管理组件可以应用于共享 CalSWIM 属性的各种协作信息存储库？即科学家、监管机构和公众之间基于数据的合作。 我们将传播该项目的成果，并通过使用开源模型以及向那些可以从采用该模型中受益的组织进行推广工作，将其广泛提供给其他团体。