Results 11 to 20 of about 1,230,533 (309)
Estimation of Structural Diversity of Acer campestre Stands by using of Complexity Structural Diversity Index in Arasbaran Forest [PDF]
Measuring the forest structural diversity is a useful and important way to predict the growth and the future development activities of the forest stands.
Roya Abedi
doaj +1 more source
The structure of the Emotions Profile Index [PDF]
In order to evaluate the factor structure of the Emotions Profile Index (EPI) 217 first-year students accommodated in the school’s dormitory were examined.
Kurbalija Dragan
doaj +1 more source
Adaptive Index Structures [PDF]
Traditional indexes aim at optimizing the node accesses during query processing, which, however, does not necessarily minimize the total cost due to the possibly large number of random accesses. In this paper, we propose a general framework for adaptive indexes that improve overall query cost. The performance gain is achieved by allowing index nodes to
Yufei Tao 0001, Dimitris Papadias
openaire +1 more source
Supervised Machine Learning for Refractive Index Structure Parameter Modeling
The Hellenic Naval Academy (HNA) reports the latest results from a medium-range, near-maritime, free-space laser-communications-testing facility, between the lighthouse of Psitalia Island and the academy’s laboratory building. The FSO link is established
Antonios Lionis +5 more
doaj +1 more source
Factor Structure of the Neck Disability Index [PDF]
BACKGROUND CONTEXT: The Neck Disability Index frequently is used to measure outcomes of the neck. The statistical rigor of the Neck Disability Index has been assessed with conflicting outcomes.
Cuesta-Vargas, Antonio +10 more
core +1 more source
A blockchain index structure based on subchain query
Blockchain technology has the characteristics of decentralization and tamper resistance, which can store data safely and reduce the cost of trust effectively.
Xiaogang Xing +4 more
doaj +1 more source
Refractive index reconfigurable metamaterial structure at 28 GHz frequency range [PDF]
In this paper, a new refractive index reconfigurable metamaterial structure at millimeter wave (MMW) frequency range has been designed and simulated for beam switching in a future fifth-generation (5G) mobile network applications.
M. K. A. Rahim +15 more
core +1 more source
QML: a hybrid spatial index structure
In order to enrich the functionalities of existing learned multidimensional indexes and improve the efficiency, the dynamic data segmentation algorithm DDSA was proposed, which could preserve the data distribution characteristics.A hybrid spatial index ...
Dong CUI +3 more
doaj +2 more sources
In modern data warehousing, data skipping is essential for high query performance. While index structures such as B-trees or hash tables allow for precise pruning, their large storage requirements make them impractical for indexing secondary columns.
A. Kipf (Andreas) +4 more
openaire +3 more sources

