Topic Sensitive Page Rank A Context Sensitive Ranking Algorithm for Web Search
The original PageRank algorithm for improving the ranking of search-query results computes a single vector, using the link structure of the Web, to capture the relative \importance” of Web pages, independent of any particular search query. To yield more accurate search results, we propose computing a set of PageRank vectors, biased using a set of […]
Low Power Ripple Free Chopper Amplifier with Correlated Double Sampling De Chopping
This paper presents a new solution to obtain a spursfree high precision amplifier. The method involves input chopping and correlated double sampling signal de-chopping. The offset is removed by using DC coupling. The proposed method, verified with transistor level simulations, is applied to a rail-to-rail input amplifier with 187 dB DC gain and 13.7 A […]
Low Power CMOS Chopper Amplifier for EEG Acquisition Systems
The demand for technologies that help neuroscientists and clinicians to ac- tively observe a large number of neurons in the brain has increased signif- icantly. Currently the biopotential acquisition systems are bulky and not portable that makes it dicult for the on-going diagnostics and causes dis- comfort to the patient. There is a need to […]