A large number of researchers, academia, government sectors, and business enterprises
are adopting the cloud environment due to the least upfront capital investment, maximum …

摘要大数据(Big Data) 已成为学术界和产业界的研究热点, 正影响着人们日常生活,
工作习惯及思考方式. 但是目前大数据在收集, 存储和使用过程中面临着诸多安全风险 …

Nowadays, big data has become ubiquitous. Big data contains great value and chance.
However, big data also brings many security risks and privacy-preserving problems. Security …

We study the following problem: A data distributor has given sensitive data to a set of
supposedly trusted agents (third parties). Some of the data are leaked and found in an …

In this paper, we present a technique for fingerprinting relational data by extending Agrawal
et al.'s watermarking scheme. The primary new capability provided by our scheme is that …

Proving ownership rights on outsourced relational databases is a crucial issue in today's
internet-based application environments and in many content distribution applications. In …

The demand for the secondary use of medical data is increasing steadily to allow for the
provision of better quality health care. Two important issues pertaining to this sharing of data …

Data mining over multiple data sources has emerged as an important practical problem with
applications in different areas such as data streams, data-warehouses, and bioinformatics …

Over the last 25 years, there has been much work on multimedia digital watermarking. In this
domain, the primary limitation to watermark strength has been in its visibility. For multimedia …

Nowadays information is crucial in many fields such as medicine, science and business,
where databases are used effectively for information sharing. However, the databases face …