Phasor Measurement Units (PMUs) are in growing attention in recent power systems because of their paramount abilities in state estimation. PMUs are placed in existing power systems where there are already installed conventional measurements, which can be helpful if they are considered in PMU optimal placement. In this paper, a method is proposed for optimal placement of PMUs incorporating conve...

AbstractCombinatorial designs provide an interesting source of optimization problems. Among them, permutation codes are particularly given their applications in powerline communications, flash memories, and block ciphers. This paper addresses the design by evolutionary algorithms (EA) developing iterative approach. Starting from a single random permutation, new permutations satisfying minimum d...

The existence of lunar influence on the frequency of suicide is tested by means of a permutation test. A total of 897 suicide deaths reported by the Anatomical Forensic Institute of Madrid were analyzed by a permutation test, a direct application of Fisher's ideas. Noteworthy in this study are the testing method used and the accuracy of timing of the deaths. Both factors provide firm ground for...

Permutation is widely used in cryptographic algorithms. However, it is not well-supported in existing instruction sets. In this paper, two instructions, PPERM3R and GRP, are proposed for efficient software implementation of arbitrary permutations. The PPERM3R instruction can be used for dynamically specified permutations; the GRP instruction can be used to do arbitrary n-bit permutations with u...

A novel chaotic, permutation-substitution architecture based, grayscale images’ encryption algorithm is introduced in this paper. To reduce the redundancies of Fridrich’s structure based image encryption scheme, a novel inter-intra bit-level permutation based confusion strategy is appealed. The confusion stage is developed with the aid of KenKen puzzles. Theoretical analysis and simulation resu...

SPNs (Substitution Permutation Networks) are one of the important architectures used for designing block ciphers. In our study, we applied differential cryptanalysis method for a 3-round SPN. We have used a 16-bit input as plaintext and 16-bit output as ciphertext and chosen the first row of the third S-box of DES (Data Encryption Standard) for the necessary S-box and ShiftRows transformation w...

Although the video surveillance system plays an important role in intelligent transportation, limited camera views make it difficult to observe many traffic events. In this paper, we collect and combine flow variables from multi-source sensors, propose a PITED method based on Random Forest (RF) Permutation importance (PI) for event detection. This model selects suitable by means of permutation ...