A Channel Coding Perspective of Collaborative Filtering

We consider the problem of collaborative filtering from a channel coding perspective. We model the underlying rating matrix as a finite alphabet matrix with block constant structure. The observations are obtained from this underlying matrix through a discrete memoryless channel with a noisy part representing noisy user behavior and an erasure part representing missing data. Moreover, the clusters over which the underlying matrix is constant are {\it unknown}. We establish a sharp threshold result for this model: if the largest cluster size is smaller than $C_1 \log(mn)$ (where the rating matrix is of size $m \times n$), then the underlying matrix cannot be recovered with any estimator, but if the smallest cluster size is larger than $C_2 \log(mn)$, then we show a polynomial time estimator with diminishing probability of error. In the case of uniform cluster size, not only the order of the threshold, but also the constant is identified.Comment: 32 pages, 1 figure, Submitted to IEEE Transactions on Information Theor

His Bundle Recordings

When we record atrial activity on the His bundle electrogram we are recording from the area of the atrium which is around the tricuspid valve, that is, the lower part of the right atrium. The normal range of conduction time from the region of the sinus node to the low right atrium is about 25 to 45 milliseconds

Use of ICT in Health Care for Rural India: The scenario with Software & Embedded system: the eMedicine way

Health Care sector in India has witnessed significant growth during the last few years, both in quality and capacity. In spite of such developments, heath care facilities in the country remain inadequate to meet the needs of the citizens, particularly in rural areas, where approximately 70% of the people live. To address this problem, the government has launched major national initiatives such as National Rural Health Mission, establishment of six new AIIMS like institutions, up gradation of existing public hospitals and labs, etc. As the health sector is poised for major growth in next decade, the sheer size of healthcare sector in the country will necessitate extensive use of information and communication technology (ICT) infrastructure, services and databases for policy planning and implementation. Such a framework would require services based on inter-operable and sharable technology, connecting various institutions and service providers. This paper states our vision & proposed solution for rural populace of India

Running Big Data Privacy Preservation in the Hybrid Cloud Platform

Now a day’s cloud computing has been used all over the industry, due to rapid growth in information technology and mobile device technology. It is more important task, user’s data privacy preservation in the cloud environment. Big data platform is collection of sensitive and non-sensitive data. To provide solution of big data security in the cloud environment, organization comes with hybrid cloud approach. There are many small scale industries arising and making business with other organization. Any organization data owner or customers never want to scan or expose their private data by the cloud service provider. To improve security performance, cloud uses data encryption technique on original data in public cloud. Proposed system work is carried out how to improve image data privacy preserving in hybrid cloud. For that we are implementing image encryption algorithm based on Rubik’s cube principle improves the image cryptography for the public cloud data securit

Simplified Production of Large Prototypes using Visible Slicing

Rapid Prototyping (RP) is a totally automatic generative manufacturing technique based on a “divide-and-conquer” strategy called ‘slicing’. Simple slicing used on 2.5-axis kinematics of the existing RP machines is responsible for the staircase error. Although thinner slices will have less error, the slice thickness has practical limits. Visible Slicing overcomes these limitations. A few visible slices exactly represent the object. Each visible slice can be realized using a 3- axis kinematics machine from two opposite directions. Visible slicing is implemented on Segmented Object Manufacturing (SOM) machine under development. SOM can produce soft large prototypes faster and cheaper with accuracy comparable to that of CNC machining.Mechanical Engineerin

Case Study Analysis of Stock Market Using Algorithms

Data Science consists of data cleaning, arranging it in the proper manner, and then analyzing it to get the desired output. It is an interdisciplinary field of study that uses data for various research and reporting purposes to derive insights and meaning out of that data. In today’s economy, it is very important to predict the stock prices and their ups and downs. As we are seeing a lot of people are getting closure towards the stock or the bitcoin-like crypto’s. So there are techniques so that one can predict the appropriate result. There are many algorithms that are available to trace the movement of the market. Big data, Data mining, Data visualization all help to analyze the data and predict the outcome

Study of clinical profile and outcome of patients with acute non-traumatic paraparesis

Background: The following study is about the clinical profile and outcome of patients with acute non traumatic paraparesis. It includes the aetiology, clinical presentation and the outcome of various cases of acute non traumatic paraparesis. Paraplegia or paraparesis could be defined as loss of function of both legs as a result of disease or injury of the spinal cord, spinal roots, peripheral nerves or myopathies. Acute non-traumatic paraparesis is a neurological emergency. Reversible causes of acute paraplegia can be treated successfully if diagnosed early.Methods: The observational study was done in the department of general medicine at D. Y. Patil Hospital, Navi Mumbai with sample size of 75 patients over 1 year.Results: With early diagnosis prognosis of acute non traumatic paraparesis can be improved which was evaluated over period of 3 months.Conclusions: Acute non-traumatic paraparesis is a neurological emergency. Reversible causes of acute paraplegia can be treated successfully if diagnosed early. It is important to diagnose and classify all cases into compressive and non-compressive lesions based on presenting symptoms because the management of the two differs

Role of conventional oral antidiabetic drugs in management of type 2 diabetes mellitus

Type 2 diabetes mellitus (T2DM) is caused by insulin resistance and characterized by progressive pancreatic β-cell dysfunction. Recent innovative treatment approaches target the multiple pathophysiological defects present in type 2 diabetes. The targets for glycemic control as set by the American Diabetes Association (HbA1C<7%) and the American Association of Clinical Endocrinologists (HbA1C<6.5%) sometimes appear daunting and unattainable. It is therefore of the utmost importance to have an excellent understanding of the mechanism of action of these drugs in order to optimize patient therapy. Here, we present a corresponding discussion of all the available oral antidiabetic drugs according to the different classes, their mechanisms of action and pharmacological profiles