In the common theory of Universe, redshift light wavelength from distant stars indicates speed star. this study, model Universe is surface volume four-dimensional sphere, and shape results in most wavelength. Therefore, there no dark energy accelerating Universe. The sphere a volume, good for has been explained by cube, within which forming can be easily shown. cube containing six side cubes in...

Storing vast number of aggregate tables (materialized views) of the base data collected from its various independent data sources is one way warehousing systems provide fast access to data requested by complex warehouse queries. A data warehouse collects, stores and integrates large amounts of data from various function oriented databases over a long period of time which is used for online anal...

The purpose of this document is to create a data model and its serialization for expressing generic time series data. Already existing IVOA data models are reused as much as possible. The model is also made as generic as possible to be open to new extensions but at the same time closed for modifications. This enables maintaining interoperability throughout different versions of the data model. ...

Current methods for monitoring deforestation from satellite data at sub-annual scales require pixel time series to have many historical observations in the reference period to model normal forest dynamics before detecting deforestation. However, in some areas, pixel time series often do not have many historical observations. Detecting deforestation at a pixel with scarce historical observations...

A fundamental process in data mining is to approximate the joint distribution of a multivari-ate data set. A typical approach is to use histograms. However, conventional histograms (with dimension-normal data partitions) create an exponential number of partitions as the number of dimensions increases. In previous work, we presented the DataSphere method for data space partitioning and used it f...

Services monitoring freight vehicle on route have been responding an increasing number of demands of goods owners. This chapter proposes a visualization-based tracking system using mobile device to enable users to keep track of the status of their freights ubiquitously in real time by viewing comprehensive graphs on mobile devices. The system comprises a moving device implemented on vehicle, a ...

Recent work introduced the cube-and-conquer technique to solve hard SAT instances. It partitions the search space into cubes using a lookahead solver. Each cube is tackled by a conflict-driven clause learning (CDCL) solver. Crucial for strong performance is the cutoff heuristic that decides when to switch from lookahead to CDCL. Yet, this offline heuristic is far from ideal. In this paper, we p...

Data Cubes are used in large data warehouses as a tool for online aggregation of information. Typically , online aggregation is supported by specifying a range query over a multidimensional data cube. As the number of dimensions increases, supporting eecient range queries as well as updates to the data cube becomes diicult. Another problem that arises with increased dimensionality is the sparse...

Informally, a set of abstractions of a state space S is additive if the distance between any two states in S is always greater than or equal to the sum of the corresponding distances in the abstract spaces. The first known additive abstractions, called disjoint pattern databases, were experimentally demonstrated to produce state of the art performance on certain state spaces. However, previous ...

A theorem of V. L. Klee, Jr. [9] asserts that any homeomorphism between two compact sets in a separable, infinite-dimensional Hilbert space can be extended to a homeomorphism of the entire space onto itself. Since it has recently been shown ( [ l ] , [5] and [6]) that all separable, infinite-dimensional Frechet spaces are homeomorphic (a Frechet space being a metrizable, complete, locally conve...