617 research outputs found
Two particle entanglement and its geometric duals
We show that for a system of two entangled particles, there is a dual
description to the particle equations in terms of classical theory of
conformally stretched spacetime. We also connect these entangled particle
equations with Finsler geometry. We show that this duality translates strongly
coupled quantum equations in the pilot-wave limit to weakly coupled geometric
equations.Comment: 10pp, Typos corrected, Accepted versio
HybridMiner: Mining Maximal Frequent Itemsets Using Hybrid Database Representation Approach
In this paper we present a novel hybrid (arraybased layout and vertical
bitmap layout) database representation approach for mining complete Maximal
Frequent Itemset (MFI) on sparse and large datasets. Our work is novel in terms
of scalability, item search order and two horizontal and vertical projection
techniques. We also present a maximal algorithm using this hybrid database
representation approach. Different experimental results on real and sparse
benchmark datasets show that our approach is better than previous state of art
maximal algorithms.Comment: 8 Pages In the proceedings of 9th IEEE-INMIC 2005, Karachi, Pakistan,
200
Analysis and Simulation of Wireless Ad-Hoc Network Routing Protocols
An ad hoc network is a collection of wireless mobile nodes dynamically forming a
temporary network without the use of any existing network infrastructure or
centralized administration. Ad-hoc networks, characterized by dynamic topology.
Each host moves in an arbitrary manner and routes are subject to frequent
disconnection. During the period of route reconstruction, packets can be dropped. The
loss of packets will cause significant throughput degradation. A number of routing
protocols like Dynamic Source Routing (DSR), Ad Hoc On-Demand Distance Vector
Routing (AODV) and Destination-Sequenced Distance-Vector (DSDV. have been
implemented. In this project an attempt has been made using network simulator (NS)
to compare the performance of two on-demand reactive routing protocols for mobile
ad hoc networks: DSR and AODV, along with the traditional proactive DSDV
protocol, using more stressful parameters, such as a very high mobility, large number
of nodes and with a very heavy traffic loads.The simulation results show that at a
small to medium field area with a considerably large number of nodes, the tabledriven
DSDV protocol performs better than the On-demand protocols, AODV and
DSR at low mobility.While On-demand protocols, AODV perform very well at all
network conditions. While at large field area all the routing protocols performed
poorly due to large number of hops that needed for one node to communicate with
another and link breakage are likely to happens. Although DSR and AODV share
similar on-demand behavior, the differences in the protocol mechanics can lead to
significant performance differentials. The performance differentials are analyzed
using varying network load, mobility, and network size. The simulation results show
that On-demand routing protocol AODV and Table-driven routing protocol DSDV
can be used for most of ad-hoc applications delivering about 95% of data packets to
the destination nodes. These simulations are carried out based on the Rice Monarch
Project that has made substantial extensions to the NS-2 network simulator to run ad
hoc simulations
The Causality between Indonesian Sharia Stock Index and Market Capitalization: Evidence from Indonesia
This study investigates the relationship between the sharia stock index and market capitalization in Indonesia for the period 2011-2019. This study uses secondary data, it is monthly time series data with 97 months observation period from May 2011 until March 2019. The analysis technique of this study is the granger causality test that is complemented by the impulse response and variance decomposition test. the findings of the study indicated that there was only a one-way causality relationship between the sharia stock index variable and market capitalization, which only the changes of market capitalization in the past affected the changes of the sharia stock trading value in the present but not vice versa. The effect of market capitalization changes will be responded strongly by sharia stock in the second and third month, and then return to a new stable condition. Furthermore, the changes in the value of market capitalization provide a sizable and continuous contribution to the changes of sharia stock trading valu
FastLMFI: An Efficient Approach for Local Maximal Patterns Propagation and Maximal Patterns Superset Checking
Maximal frequent patterns superset checking plays an important role in the
efficient mining of complete Maximal Frequent Itemsets (MFI) and maximal search
space pruning. In this paper we present a new indexing approach, FastLMFI for
local maximal frequent patterns (itemset) propagation and maximal patterns
superset checking. Experimental results on different sparse and dense datasets
show that our work is better than the previous well known progressive focusing
technique. We have also integrated our superset checking approach with an
existing state of the art maximal itemsets algorithm Mafia, and compare our
results with current best maximal itemsets algorithms afopt-max and FP
(zhu)-max. Our results outperform afopt-max and FP (zhu)-max on dense (chess
and mushroom) datasets on almost all support thresholds, which shows the
effectiveness of our approach.Comment: 8 Pages, In the proceedings of 4th ACS/IEEE International Conference
on Computer Systems and Applications 2006, March 8, 2006, Dubai/Sharjah, UAE,
2006, Page(s) 452-45
The reasons behind the absence of a comprehensive Shariah Governance Framework of Islamic banks in Bangladesh
Purpose: The main objective of the study is to examine the reasons behind the absence of a comprehensive Shariah Governance Framework (SGF) of Islamic banks in Bangladesh. Design/Methodology/Approach: The study has covered 17 respondents through semistructured interviews from the Islamic banks and the Central Bank of Bangladesh with a combination of Shariah supervisory board members, Shariah department executives, Central Bank executives, and banking experts. Findings: Based on findings, this study outlines that the knowledge gap of management, unqualified Shariah supervisory boards members, executives in Central Bank and Islamic banks, and intention of the regulators, policymakers, Shariah experts, government executives, Islamic bankers, Board of directors, stakeholders and civil societies are responsible for the absence of a comprehensive SGF. Practical Implications: The study has significantly contributed to the national regulators, government, and the Central Bank of Bangladesh on the subject for developing a comprehensive Shariah Governance Framework. Originality/Value: The study highlights the reasons for the absence of a comprehensive Shariah Governance Framework which was unexplored for more than 30 years.peer-reviewe
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