Recent research in finding the optimal path by ant colony optimization

The computation of the optimal path is one of the critical problems in graph theory. It has been utilized in various practical ranges of real world applications including image processing, file carving and classification problem. Numerous techniques have been proposed in finding optimal path solutions including using ant colony optimization (ACO). This is a nature-inspired metaheuristic algorithm, which is inspired by the foraging behavior of ants in nature. Thus, this paper study the improvement made by many researchers on ACO in finding optimal path solution. Finally, this paper also identifies the recent trends and explores potential future research directions in file carving.

Analisis Perbandingan File Carving Dengan Metode Nist

Pemulihan data adalah bagian terpenting dari Digital Forensic. Bagi penyidik ??negara untuk menghasilkan bukti yang sah di pengadilan sangat penting dan wajib. Memori Flash, Hard Disk Drive (HDD) dan Solid State Drive (SDD) adalah beberapa Media Penyimpanan yang digunakan sebagai tempat untuk meletakkan semua jenis data dan informasi dalam berbagai format file digital. Karena bentuk digitalnya sehingga memungkinkan berbagai format file digital disembunyikan, dihapus, dan bahkan diformat di media penyimpanan, sedangkan semua data dan informasi harus ditemukan oleh penyelidik negara. Prinsip dasar data atau informasi digital jika telah disalin pada Memori Flash, Hard Disk Drive (HDD) dan Solid State Drive (SDD) tidak akan pernah hilang secara permanen dan bahkan data atau informasi digital hilang karena dihapus, diformat dengan cepat atau sistem macet. Jadi, mengembalikan data sangat mungkin. Dalam penelitian ini, tes dilakukan menggunakan Foremost, FTK Imager, dan Scalpel, yang merupakan Alat OpenSource yang dapat digunakan pada sistem operasi Propietary dan OpenSource. Metode yang digunakan adalah Institut Teknologi Standar Nasional (NIST). NIST memiliki panduan kerja yang sangat baik tentang kebijakan dan standar untuk memastikan setiap Penguji mengikuti alur kerja yang sama, sehingga pekerjaan mereka didokumentasikan dan hasilnya dapat ditinjau dan dapat dipertahankan saat pelaporan sebelum dijadikan sebagai bukti yang valid. Hasil penelitian ini membuktikan bahwa Foremost, FTK Imager, dan Scalpel dapat mengembalikan data yang dihapus, disembunyikan, dan diformat.

File Carving Survey on Techniques, Tools and Areas of Use

In digital and computer forensics, file carving is a very hot research topic. That is the main reason why the research is needed to be focused on improving file carving techniques, so that digital investigation can obtain important data and evidence from damaged or corrupted storage media. In the digital forensic investigation, analyzing the unallocated space of storage media is necessary to extract the deleted or pre-written files when the file system metadata is missing or corrupted. Data carving can be defined as a method to recover the file from unallocated space based on different factors such as file type, information of the file (Header/Footer), or the contents of the file. Research in this area focuses on technological improvements in terms of tools and techniques over the past years. The studies examine different techniques of data carving, especially multimedia files (eg. images and videos). The work file carving is classified into three categories classic carving techniques, intelligent carving techniques and smart carving techniques. Moreover, there are seven popular multimedia carving tools that are mostly used and experimentally evaluated are presented. We conclude that proposing new advanced method for carving multimedia files still open and new direction for future research. This is because the fragmentations and compression are very commons used and useful for these kind of files.