Conference Presentations by Ramani Kasarapu
IEEE 6th International Advanced Computing Conference , 2016
The increased on-line applications are leading to exponential growth of the web content. Most of ... more The increased on-line applications are leading to exponential growth of the web content. Most of the business organizations are interested to know the web user behavior to enhance their business. In this context, users navigation in static and dynamic web applications plays an important role in understanding user's interests. The static mining techniques may not be suitable as it is for dynamic web log files and decision making. Traditional web log preprocessing approaches and weblog usage patterns have limitations to analyze the content relationship with the browsing history This paper, focuses on various static web log preprocessing and mining techniques and their applicable limitations for dynamic web mining.
ICT, 2010
This paper introduces a multi resolution cascaded transform domain method for copyright protectio... more This paper introduces a multi resolution cascaded transform domain method for copyright protection of digital images. An algorithm is developed that embeds the watermark information, with out much distortion to the cover image, while allows us to extract the watermark by use of correlation. The efficiency of an image watermarking technique depends on the preservation of visually significant information. This is achieved by Dual Tree Complex Wavelet Transform (DTCWT), which is modeled to show directional selectivity and as a result consistent with the Human Visual System (HVS). The Discrete Cosine Transform (DCT) is resistant to several attacks. In this paper combined DTCWT-DCT technique is proposed, which uses a unique method for spreading, embedding and extracting the watermark. This paper compares various watermarking algorithms like DCT, Discrete Wavelet Transform (DWT), DTCWT, DCT-DWT with DTCWT-DCT method. This hybrid DTCWT-DCT shows superior performance in the presence of geometric and signal processing operations.
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Conference Presentations by Ramani Kasarapu