75 citations · 126 across the 8 of their papers we have counts for
4 papers · 1 filter
Greedy Column Subset Selection for Large-scale Data Sets
Ahmed K. Farahat, Ahmed Elgohary, Ali Ghodsi +1
In today's information systems, the availability of massive amounts of data necessitates the development of fast and accurate algorithms to summarize these data and represent them…
A Fast Greedy Algorithm for Generalized Column Subset Selection
Ahmed K. Farahat, Ali Ghodsi, Mohamed S. Kamel
This paper defines a generalized column subset selection problem which is concerned with the selection of a few columns from a source matrix A that best approximate the span of a t…
Discriminative Density-ratio Estimation
Yun-Qian Miao, Ahmed K. Farahat, Mohamed S. Kamel
The covariate shift is a challenging problem in supervised learning that results from the discrepancy between the training and test distributions. An effective approach which recen…
Embed and Conquer: Scalable Embeddings for Kernel k-Means on MapReduce
Ahmed Elgohary, Ahmed K. Farahat, Mohamed S. Kamel +1
The kernel -means is an effective method for data clustering which extends the commonly-used -means algorithm to work on a similarity matrix over complex data structures. The…