With rapidly decreasing storage costs temporal document databases is now a viable solution in many contexts. However, storing an ever growing database can still be too costly, and as a consequence it is desirable to be able to physically delete old versions. Traditionally, this has been performed by an operation called vacuuming, where the oldest versions are physically deleted (or migrated fro...

Medical record abstraction, a primary mode of data collection in secondary data use, is associated with high error rates. Cognitive factors have not been studied as a possible explanation for medical record abstraction errors. We employed the theory of distributed representation and representational analysis to systematically evaluate cognitive demands in medical record abstraction and the exte...

A page-oriented, angle-multiplexed volume holographic optical-memory recording system has been constructed. This memory is addressed by the use of an acousto-optic deflector with a random-access time of 16 µs per page. This enables data transfer rates of 5.28 Gbits/s when pages of binary data are being stored. The reconstruction quality of images stored as memory pages is assessed with the qual...

Mining frequent itemsets from transactional data streams is challenging due to the nature of the exponential explosion of itemsets and the limit memory space required for mining frequent itemsets. Given a domain of I unique items, the possible number of itemsets can be up to 2 1. When the length of data streams approaches to a very large number N, the possibility of an itemset to be frequent be...

Memory Spot is a microchip developed by HP Labs at Bristol. Compared to Radio Frequency Identification (RFID) devices, Smart Cards and other Near-Field Communication (NFC) devices, this chip provides much larger storage capacity, faster data transfer rate, and smaller physical dimensions. The chip is normally passive and is energized by an external reader/writer over the Radio Frequency (RF) ch...

Relations between memory and the self are framed from a number of perspectives-developmental aspects, forms of memory, interrelations between memory and the brain, and interactions between the environment and memory. The self is seen as dividable into more rudimentary and more advanced aspects. Special emphasis is laid on memory systems and within them on episodic autobiographical memory which ...

Capturing, encoding, storing and retrieving relevant historical knowledge and data for use in decision situations is a difficult problem [e.g., 2, 17]. This project contributes to the understanding of organizational memory information systems through the development of a conceptual model for a task-oriented organizational memory system. In particular, this study builds on the notion of addressi...

In this paper, we propose a scheme for reducing the power consumption of memory components by conforming memory contents to a precharging value. The scheme is oriented to application to single bitline structure of memory. It selectively stores normal or inverted data to reduce the number of bit accesses that have different values from the precharging value, which reduces overall bitline togglin...

Main-memory column-stores are called to efficiently use modern non-uniform memory access (NUMA) architectures to service concurrent clients on big data. The efficient usage of NUMA architectures depends on the data placement and scheduling strategy of the column-store. Most column-stores choose a static strategy that involves partitioning all data across the NUMA architecture, and employing a s...