«optimistic efficiency»
۱۰۹۸ نتیجهEfficient validation of mobile transactions in wireless environments
In broadcast environments, the limited bandwidth of the upstream communication channel from the mobile clients to the server bars the application of conventional concurrency control protocols. In this paper, we propose a new variant of the optimistic concurrency control (OCC) pro
An Efficient and Fault-Tolerant Update Commitment Protocol for Weakly Connected Replicas
Mobile and other loosely-coupled environments call for decentralized optimistic replication protocols that provide highly available access to shared objects, while ensuring eventual convergence towards a strongly consistent state. In this paper we propose a novel epidemic weighte
Measuring robust overall profit efficiency with uncertainty in input and output price vectors
The classic overall profit needs precise information of inputs, outputs, inputs and outputs price vectors. In real word, all data are not certain. Therefore, in this case, stochastic and fuzzy methods use for measuring overall profit efficiency. These methods require more informa
Robust efficiency in data envelopment analysis with VRS technology
One of the fundamental problems in the classic DEA is lack of ability to distinguish unit's performance scores that is considered as a disadvantage. Recently, Parkan et al. [9] tried to address this problem. They proposed to assess each unit both optimistic and pessimistic views
Efficient Machine Learning Using Random Projections
As an alternative to cumbersome nonlinear schemes for dimensionality reduction, the technique of random linear projection has recently emerged as a viable alternative for storage and rudimentary processing of high-dimensional data. We invoke new theory to motivate the following c
A Note On Dual Models Of Interval DEA and Its Extension To Interval Data
In this article, we investigate the measurement of performance in DMUs in which input and/or output values are given as imprecise data. By imprecise data, we mean that in some cases, we only know that the actual values are inside certain intervals, and in other cases, data are sp
Efficient Detection of Errors in Java Components Using Random Environment and Restarts
Software model checkers are being used mostly to discover specific types of errors in the code, since exhaustive verification of complex programs is not possible due to state explosion. Moreover, typical model checkers cannot be directly applied to isolated components such as lib
Data Structures for Efficient String Algorithms
This thesis deals with data structures that are mostly useful in the area of string matching and string mining. Our main result is an O(n)-time preprocessing scheme for an array of n numbers such that subsequent queries asking for the position of a minimum element in a specified
On Optimistic versus Randomized Exploration in Reinforcement Learning
We discuss the relative merits of optimistic and randomized approaches to exploration in reinforcement learning. Optimistic approaches presented in the literature apply an optimistic boost to the value estimate at each state-action pair and select actions that are greedy with res
Efficient Optimistic Fair Exchange Secure in the Multi-user Setting and Chosen-Key Model without Random Oracles
Optimistic fair exchange is a kind of protocols to solve the problem of fair exchange between two parties. Almost all the previous work on this topic are provably secure only in the random oracle model. In PKC 2007, Dodis et al. considered optimistic fair exchange in a multiuser