GraphSE2^2: An Encrypted Graph Database for Privacy-Preserving Social Search

In this paper, we propose GraphSE$^2$, an encrypted graph database for online social network services to address massive data breaches. GraphSE$^2$ preserves the functionality of social search, a key enabler for quality social network services, where social search queries are conducted on a large-scale social graph and meanwhile perform set and computational operations on user-generated contents. To enable efficient privacy-preserving social search, GraphSE$^2$ provides an encrypted structural data model to facilitate parallel and encrypted graph data access. It is also designed to decompose complex social search queries into atomic operations and realise them via interchangeable protocols in a fast and scalable manner. We build GraphSE$^2$ with various queries supported in the Facebook graph search engine and implement a full-fledged prototype. Extensive evaluations on Azure Cloud demonstrate that GraphSE$^2$ is practical for querying a social graph with a million of users.Comment: This is the full version of our AsiaCCS paper "GraphSE$^2$: An Encrypted Graph Database for Privacy-Preserving Social Search". It includes the security proof of the proposed scheme. If you want to cite our work, please cite the conference version of i

ARMANDO, a SPH code for CERN

The Smoothed Particle Hydrodynamics methodologies may be a useful numerical tool for the simulation of particle beam interaction with liquid targets and obstacles. ARMANDO code is a state of the art SPH code interfaced with FLUKA and capable to solve these problems. This report presents the basic theoretical elements behind the method, describes the most important aspects of the implementation and shows some simple examples

ARMANDO, a SPH code for CERN Some theory, a short tutorial, the code description and some examples

The Smoothed Particle Hydrodynamics methodologies may be a useful numerical tool for the simulation of particle beam interaction with liquid targets and obstacles. ARMANDO code is a state of the art SPH code interfaced with FLUKA and capable to solve these problems. This report presents the basic theoretical elements behind the method, describes the most important aspects of the implementation and shows some simple examples

Special Libraries, April 1962

Volume 53, Issue 4https://scholarworks.sjsu.edu/sla_sl_1962/1003/thumbnail.jp

Gathering as onthological practice among Evenki of Eastern Siberia

Through visual analysis presented in 15 tables the authors looked at the complexity of gathering as practice that not only plays a role in subsistence, but also creates meaning and frames an engagement with the environment. Gathering is studied as consisting of several processes: the searching; cleaning and sorting things, to lay out and to dry things; and transportation, consumption and packing. Objects that are gathered are shown to play important roles of mediums for people and their environment. Cases of berries, firewood, jade stones and ice are presented as illustrations of this argument. In the final part of the article gathering is studied as a metaphysical phenomenon: a process of switching from disorder to order and back. Gathering poses many metaphysical questions in a practical form, and the authors propose to look at how people deal with these questions. How does the world change for those who gather things? How do they experience this transformation? Does the human attempt to collect things become an attempt to order the chaotic environment, classify it, and contain chaos into small volumes of their bags and buckets? This study is based on social anthropological fieldwork conducted among Evenki people of East Buryatia

Reaching around barriers: the performance of the great apes and 3–5-year-old children

Inhibitory control has been suggested as a key predictive measure of problem-solving skills in human and nonhuman animals. However, there has yet to be a direct comparison of the inhibitory skills of the nonhuman apes and their development in human children. We compared the inhibitory skills of all great ape species, including 3–5-year-old children in a detour-reaching task, which required subjects to avoid reaching directly for food and instead use an indirect reaching method to successfully obtain the food. We tested 22 chimpanzees, 18 bonobos, 18 orangutans, 6 gorillas and 42 children. Our sample included chimpanzees, bonobos and orangutans housed in zoos (N = 27) and others housed in sanctuaries in their native habitats (N = 37). Overall, orangutans were the most skilful apes, including human children. As expected older children outperformed younger children. Sanctuary chimpanzees and bonobos outperformed their zoo counterparts whereas there was no difference between the two orangutan samples. Most zoo chimpanzees and bonobos failed to solve the original task, but improved their performance with additional training, although the training method determined to a considerable extent the level of success that the apes achieved in a transfer phase. In general, the performance of the older children was far from perfect and comparable to some of the nonhuman apes tested

(I)MAGESOUND(S): Expanded audiovisual practice

(I)MAGESOUND(S) is a collaborative audiovisual project led by artist Jim Hobbs and composer Andrew Hill. It seeks to bring together the practices of experimental film and electroacoustic music to create live, expanded audiovisual performances. The goals of the project are to combine, share and reflect upon creative practice through the creation of expanded cinema events exploring the materiality of sound and light. To this end, here we describe two works developed as part of this project: Vientos Fuertes by Jim Hobbs and Projections by Andrew Hill