Privacy-Preserving Data Mining: Models and Algorithms proposes a number. can be used on all reading devices; Immediate eBook download after download. Privacy-Preserving Data Mining: Models and Algorithms proposes a number. DRM-free; Included format: PDF; ebooks can be used on all reading devices. rockghotreamenla.tk: Privacy-Preserving Data Mining: Models and Algorithms ( Advances in Database Systems) (): Charu C. Aggarwal, Philip S. Yu.
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Privacy-Preserving Data Mining: Models and Algorithms proposes a number of techniques to perform the data mining tasks in a. PRIVACY-PRESERVING DATA MINING: MODELS AND ALGORITHMS. Edited by. CHARU C. AGGARWAL. IBM T. J. Watson Research Center, Hawthorne, NY. The field of privacy has seen rapid advances in recent years because of the increases in the ability to store data. In particular, recent advances in the data mining.
The idea deriving the emergence of PerDM is twofold: maximizing the benefits gained from personal data to create well-managed healthy lifestyles while preserving privacy and security [ 4 ].
On the one hand, a rapid growth can be observed in the development of data mining technologies and algorithms, as evidenced by quantified-self movement by Kevin Kelly and personal analytics by Stephen Wolfram [ 5 ]. On the other, the publicness of the users' personal data in ubiquitous and pervasive environments has raised strong concerns over privacy-preservation and security [ 4 ]. At present, computational power and memory volume continues to be expanding, suggesting that PerDM would become more feasible in the near future and attract more research attention [ 6 ].
Computational, communicational, and storage resources that are available in a user's vicinity form a new ecosystem called a personal ecosystem PE. In connection with PEs, not only are PSDs being made resourceful but also providing numerous APIs to maximize the benefits from on-board sensors and device-resident data [ 1 ]. Despite the immense growth in micro- and nanotechnologies, PSDs are still restricted in terms of computational power, energy consumptions, on-board memory, and small screen real-estate [ 7 ].
Moreover, limited storage capacities and bandwidth are major constraints of PSDs. Nonetheless; PSDs present advantages in terms of mobility, in-hand real-time data processing, and continuous monitoring of user activities.
Despite these constraints and limitations, PSDs are being considered as a strong candidate for future data processing systems. Thus, it could be perceived that PSDs can play significant role in PEs to uncover hidden knowledge patterns from daily lifestyle activities and user-specific information [ 8 ].
A primary motivation of this study is finding opportunities to maximize benefits from PEs. A number of terms are used in this paper introduced or imported and are summarized in Table 1. A more detailed definition is given when each concept is first used in the text.
Table 1. Analysis of this data can enable new pathways to discovery and can improve the understanding, prevention and treatment of complex disorders such as cancer, diabetes, depression, etc.
Indeed, the Precision Medicine Initiative crucially depends on data-driven science and research. However, unfettered use of data poses significant concerns regarding patient privacy and the abuse of access to sensitive data. Indeed, the digitization of health information, without appropriate controls, magnifies the risk to privacy, due to the ease of retrieval, analysis, and linkage.
Privacy and confidentiality are critical to healthcare.
Improving privacy protection encourages people and organizations to share data and realize hidden insights. For example, orphan diseases can be treated more effectively when more observations from different regions in the world are shared and aggregated. Similarly, personalized medicine can be targeted to individuals more accurately if more patients similar to the person of interest are observed and analyzed.
Preserving privacy is a non-trivial task because any protection scheme essentially involves a tradeoff with data utility. Simple strategies may lead to private but uninformative data disclosure, and vice versa. This is especially challenging if the data required for a study resides at several different institutions. Note that in the early stages of any study, the researcher needs to explore the data to understand its utility for the study purpose.
Often, the researcher needs to iteratively access the data across the different sources. Even though data exploration may not require fine grained access to all of the data, researchers have to spend an inordinate amount of time trying to get access to relevant data.
In many cases, they may not even know whether the data would actually help their particular analysis. To do this, the research requires access to linked cancer registry data from the Surveillance, Epidemiology, and End Results SEER Program 1 to get information about the cancer site, stage, grade, etc.
Note that, at this stage, it is sufficient for the researcher to get this confirmation from an approximate analysis without extensive data integration for each different source, and to then retrieve only the relevant data. Our goal is to precisely enable such exploratory analysis by providing an assessment of the data with respect to utility while preserving its privacy.
Towards this, we develop a technique to generate sample datasets that preserve the structure and semantics of the original data, but not exact values, thus preserving its privacy.
We evaluate the proposed approach with several different biomedical datasets in the context of classification and regression and demonstrate its effectiveness. While our approach for generating synthetic data does not directly provide a measure quantifying the utility of the dataset for a specific type of analysis e. Thus, a researcher can get a first-order approximation of the overall usefulness of the real data.
For example, suppose that a researcher is interested in exploring the relationship between Vitamin D levels and Cancer diagnosis, and is interested in looking at three different datasets which have been collected at institutions in different geographic regions in the country.
Using the corresponding synthetic data, the researcher might be able to get an estimate of where such a relationship might exist, or whether the strength of this relationship is more significant in a particular region of the country, or whether the combined data shows the same relationship or not.
As opposed to typical decision tree learning, the trees built in RDTs are completely random in structure - i. However, the statistics recorded for each node are computed based on the training data.
It is assumed that the number of attributes is known based on the training dataset. The depth of each tree is decided based on a heuristic - Fan et al.
The process for generating a tree is as follows. First, we start with a list of features attributes from the dataset.