Abstract This paper proposed a new robust watermarking scheme using scale-invariant feature transform (SIFT) for the discrete wavelet transform (DWT) domain. In the proposed scheme, some SIFT feature regions are first determined in the original image. Then, these SIFT feature regions are transformed by using DWT transformation to generate the DWT coefficients, which is used to carry the watermark. In the receiver side, the... This paper proposed a new robust watermarking scheme using scale-invariant feature transform (SIFT) for the discrete wavelet transform (DWT) domain. In the proposed scheme, some SIFT feature regions are first determined in the original image. Then, these SIFT feature regions are transformed by using DWT transformation to generate the DWT coefficients, which is used to carry the watermark. In the receiver side, the watermark can be extracted correctly from the watermarked image. Experimental results show that the proposed scheme is withdraw under various attacks. In addition, in comparison with some exiting schemes, our proposed scheme obtains the stronger robustness than these schemes in regards with robustness and the visual quality. Read More Read Less

Abstract This paper proposed a new robust watermarking scheme using scale-invariant feature transform (SIFT) for the discrete wavelet transform (DWT) domain. In the proposed scheme, some SIFT feature regions are first determined in the original image. Then, these SIFT feature regions are transformed by using DWT transformation to generate the DWT coefficients, which is used to carry the watermark. In the receiver side, the... This paper proposed a new robust watermarking scheme using scale-invariant feature transform (SIFT) for the discrete wavelet transform (DWT) domain. In the proposed scheme, some SIFT feature regions are first determined in the original image. Then, these SIFT feature regions are transformed by using DWT transformation to generate the DWT coefficients, which is used to carry the watermark. In the receiver side, the watermark can be extracted correctly from the watermarked image. Experimental results show that the proposed scheme is withdraw under various attacks. In addition, in comparison with some exiting schemes, our proposed scheme obtains the stronger robustness than these schemes in regards with robustness and the visual quality. Read More Read Less

Abstract Currently, it is crucial for researchers to know if others have similar research objective. Nevertheless, the identification of authors sharing the same motivations and interests may be complex, especially as the amount of research publications is growing rapidly. Furthermore, information about research paper is often fragmented and incomplete. The incomplete information, or metadata, in this paper refers to abstracts, keywords, journals, organizations and... Currently, it is crucial for researchers to know if others have similar research objective. Nevertheless, the identification of authors sharing the same motivations and interests may be complex, especially as the amount of research publications is growing rapidly. Furthermore, information about research paper is often fragmented and incomplete. The incomplete information, or metadata, in this paper refers to abstracts, keywords, journals, organizations and so on. Thus, this paper analyzes the metadata information relative to an author, in order to find out similar authors. Author Similarity Model, a novel language model which is evolved from Author Topic Model, has been developed in this paper. For author similarity modeling, a four-dimensional vector has been set up to describe every author. Therefore author’s neighbors (a group of people who have the same direction of research) can be found out by calculating similarity between vectors. Read More Read Less

Abstract Vehicular ad hoc networks (VANETs) are highly mobile wireless networks that are designed to support vehicular safety, traffic monitoring, and other commercial applications. The main benefit of VANET communication is seen in active safety systems that increase passenger safety by exchanging warning messages between vehicles in vanets where the topology change is very high a single protocol is not sufficient to show good... Vehicular ad hoc networks (VANETs) are highly mobile wireless networks that are designed to support vehicular safety, traffic monitoring, and other commercial applications. The main benefit of VANET communication is seen in active safety systems that increase passenger safety by exchanging warning messages between vehicles in vanets where the topology change is very high a single protocol is not sufficient to show good performance. Since all the nodes are mobile in nature and the mobility rate is high the links between the nodes gets broken easily. For this purpose already used EG-RAODV (evolving graph based reliable ad hoc on-demand distance vector) method. But it cannot provide better routing solution. To avoid this issue HDRP (hybrid dynamic routing protocol) and beacon message is proposed in this paper, which is use to find the reliable path to control the traffic and for the safety purpose. Read More Read Less

Abstract This paper proposed a new robust watermarking scheme using scale-invariant feature transform (SIFT) for the discrete wavelet transform (DWT) domain. In the proposed scheme, some SIFT feature regions are first determined in the original image. Then, these SIFT feature regions are transformed by using DWT transformation to generate the DWT coefficients, which is used to carry the watermark. In the... This paper proposed a new robust watermarking scheme using scale-invariant feature transform (SIFT) for the discrete wavelet transform (DWT) domain. In the proposed scheme, some SIFT feature regions are first determined in the original image. Then, these SIFT feature regions are transformed by using DWT transformation to generate the DWT coefficients, which is used to carry the watermark. In the receiver side, the watermark can be extracted correctly from the watermarked image. Experimental results show that the proposed scheme is withdraw under various attacks. In addition, in comparison with some exiting schemes, our proposed scheme obtains the stronger robustness than these schemes in regards with robustness and the visual quality. Read More Read Less

Abstract Currently, it is crucial for researchers to know if others have similar research objective. Nevertheless, the identification of authors sharing the same motivations and interests may be complex, especially as the amount of research publications is growing rapidly. Furthermore, information about research paper is often fragmented and incomplete. The incomplete information, or metadata, in this paper refers to abstracts,... Currently, it is crucial for researchers to know if others have similar research objective. Nevertheless, the identification of authors sharing the same motivations and interests may be complex, especially as the amount of research publications is growing rapidly. Furthermore, information about research paper is often fragmented and incomplete. The incomplete information, or metadata, in this paper refers to abstracts, keywords, journals, organizations and so on. Thus, this paper analyzes the metadata information relative to an author, in order to find out similar authors. Author Similarity Model, a novel language model which is evolved from Author Topic Model, has been developed in this paper. For author similarity modeling, a four-dimensional vector has been set up to describe every author. Therefore author’s neighbors (a group of people who have the same direction of research) can be found out by calculating similarity between vectors. Read More Read Less

Abstract Vehicular ad hoc networks (VANETs) are highly mobile wireless networks that are designed to support vehicular safety, traffic monitoring, and other commercial applications. The main benefit of VANET communication is seen in active safety systems that increase passenger safety by exchanging warning messages between vehicles in vanets where the topology change is very high a single protocol is not sufficient... Vehicular ad hoc networks (VANETs) are highly mobile wireless networks that are designed to support vehicular safety, traffic monitoring, and other commercial applications. The main benefit of VANET communication is seen in active safety systems that increase passenger safety by exchanging warning messages between vehicles in vanets where the topology change is very high a single protocol is not sufficient to show good performance. Since all the nodes are mobile in nature and the mobility rate is high the links between the nodes gets broken easily. For this purpose already used EG-RAODV (evolving graph based reliable ad hoc on-demand distance vector) method. But it cannot provide better routing solution. To avoid this issue HDRP (hybrid dynamic routing protocol) and beacon message is proposed in this paper, which is use to find the reliable path to control the traffic and for the safety purpose. Read More Read Less