Saif Ahmed

  • Citations Per Year
Learn More
Degenerative and traumatic articular cartilage defects are common, difficult to treat, and progressive lesions that cause significant morbidity in the general population. There have been multiple approaches to treat such lesions, including arthroscopic debridement, microfracture, multiple drilling, osteochondral transplantation and autologous chondrocyte(More)
With the increasing demand on knowledge sharing and problem solving, there is a growing participation on online Question & Answer (Q&A) forums in the recent past. We classify the online community participation on Stack Exchange into two different genres, one is technical and another is non-technical. Though several studies have measured community(More)
Using Social Network Sites (SNS) as an information source has drawn the attention of the researchers for a while now. There have been many works that analyzed the types and topics of questions people ask in these networks and why. Topics like what motivate people to answer such queries, how to integrate the traditional search engines and SNS together are(More)
Network intrusion detection has remained a field of rigorous research over the past few years. Advances in computing performance, in terms of processing power and storage, have allowed the use of resource-intensive intelligent algorithms, to detect intrusive activities, in a timely manner. Genetic Algorithms have emerged as a powerful domain-independent(More)
Evolutionary algorithms often suffer from premature convergence when dealing with complex multi-modal function optimization problems as the fitness landscape may contain numerous local optima. To avoid premature convergence, sufficient amount of genetic diversity within the evolving population needs to be preserved. In this paper we investigate the impact(More)
BACKGROUND Patient compliance to physiotherapy after surgical intervention is key to optimal functional outcome. This has been recognised by published literature over a number of decades. Improving and monitoring patient compliance remains a challenge. This paper explores the use of a website linked iPhone application that may be used to address this issue.(More)
In order to achieve a satisfactory optimization performance by evolutionary programming (EP), it is necessary to ensure proper balance between exploration and exploitation. It is obvious that one single mutation operator is not the answer. Moreover, early loss of genetic diversity causes premature trapping around locally optimal points of the fitness(More)
Using Social Network Sites (SNS) as an information source has drawn the attention of the researchers for a while now. There has been many works that analyzed the types and topics of questions people ask in these networks and why. Topics like what motivate people to answer such queries, how to integrate the traditional search engines and SNS together are(More)
Actinomycosis is one of the rarest pathologies causing intra-abdominal lump in the normal population. Diagnosis is often difficult because of the least suspicion and failure in the pre-operative diagnosis even by taking the aid of modern imaging techniques like Ultrasonogram, CT scan or MRI. Even FNAC may be misleading because of the technical problems and(More)