N. Bhatti

Adaptive Bug Localization Framework for Precision-Driven Bug Localization in Software Engineering

Waqas Ali, Saima Siraj, Shamshad Lakho, N. Bhatti et autres

Software development always looks for automated methods to improve productivity and accuracy in issue detection. The paper conducts a comparative examination of several machine-learning techniques to tackle the bug localization difficulty. Our study compared the performance of Logistic Regression (LR), Random Forest …

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Fingerprint liveness detection using dynamic local ternary pattern (DLTP)

Kamran A. Bhatti, Dr.Sajida Parveen, N. Bhatti, Kamran Ali Larik et autres

Nowadays, biometric confirmation systems are utilized for security applications such as verification and identification. There are various biometric modalities such as fingerprints, face recognition, and iris scans. Biometric systems are superior to PIN and password-based systems because the latter can be easily …

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Robust Hybrid Texture Descriptor (HTD) and a parallel score based fusion for face verification and liveness detection system

Dr.Sajida Parveen, Sharifah Mumtazah Syed Ahmad, N. Bhatti, Imtiaz Ali Halepoto et autres

Currently, most of the biometric recognition systems are based on face verification are susceptible to the spoof attacks. Video replays, printed photographs and 3D mask attacks provoke false acceptance lest some necessary counter-measures are employed. We focus on still face spoof attacks …

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A Home Décor expert in your camera

Joanna Marguier, N. Bhatti, H. Harlyn Baker, Sabine Süsstrunk

We present a method to give color advice for Home Décor using images of room finishes, such as paint, flooring, or textiles, taken with uncalibrated cameras. Due to variations in color rendering across devices, an object imaged with different cameras will have …

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Assessing human skin color from uncalibrated images

Joanna Marguier, N. Bhatti, H. Harlyn Baker, M. Harville et autres

Abstract Images of a scene captured with multiple cameras will have different color values because of variations in color rendering across devices. We present a method to accurately retrieve color information from uncalibrated images taken under uncontrolled lighting conditions with an unknown …

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Understanding the Impact of Diverse Streaming Workloads on End-User Quality of Service

Mirjana Spasojevic, N. Bhatti, Sumit Roy, Leonidas Kontothanassis

Streaming media has experienced explosive growth over the last few years and will continue to increase in popularity as individual users can easily produce digital images and video. Large scale streaming will require network operators to deploy and manage a larger number …

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Consistent image-based measurement and classification of skin color

M. Harville, H. Harlyn Baker, N. Bhatti, Sabine Süsstrunk

Little prior image processing work has addressed estimation and classification of skin color in a manner that is independent of camera and illuminant. To this end, we first present new methods for 1) fast, easy-to-use image color correction, with specialization toward skin …

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User-level qos-adaptive resource management in server end-systems

Tarek Abdelzaher, Kang G. Shin, N. Bhatti

Proliferation of QoS-sensitive client-server Internet applications such as high-quality audio, video-on-demand, e-commerce, and commercial Web hosting has generated an impetus to provide performance guarantees. These applications require a guaranteed minimum amount of resources to operate acceptably to the users, thus calling for …

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Web server QoS management by adaptive content delivery

Tarek Abdelzaher, N. Bhatti

The Internet is undergoing substantial changes from a communication and browsing infrastructure to a medium for conducting business and selling a myriad of emerging services. The World-Wide Web provides a uniform and widely-accepted application interface used by these services to reach multitudes …

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Performance guarantees for Web server end-systems: a control-theoretical approach

Tarek Abdelzaher, Kang G. Shin, N. Bhatti

The Internet is undergoing substantial changes from a communication and browsing infrastructure to a medium for conducting business and marketing a myriad of services. The World Wide Web provides a uniform and widely-accepted application interface used by these services to reach multitudes …

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CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems

G.L. Bayatyan, Н С Григорян, V. G. Khachatrian, A.T. Margarian et autres

CMS

Web server support for tiered services

N. Bhatti, Richard Friedrich

The evolving needs of conducting commerce using the Internet requires more than just network quality of service mechanisms for differentiated services. Empirical evidence suggests that overloaded servers can have significant impact on user perceived response times. Furthermore, FIFO scheduling done by servers …

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