DBM*-Tree: an efficient metric access method. - Alexander Ocsa; Ernesto Cuadros-Vargas (ACM Southeast Regional Conference, 2007)

DB-GNG: A constructive Self-Organizing Map based on densilty. - Alexander Ocsa; Carlos Bedregal 001; Ernesto Cuadros-Vargas (IJCNN, 2007)

A new approach for similarity queries using neighborhood graphs. - Alexander Ocsa; Carlos Bedregal 001; Ernesto Cuadros-Vargas (SBBD, 2007)

MOBHRG: Fast k-nearest-neighbor search by overlap reduction of hyperspherical regions. - Omar U. Florez; Xiaojun Qi; Alexander Ocsa (ICASSP, 2009)

Sublinear querying of realistic timeseries and its application to human motion. - Omar U. Florez; Alexander Ocsa; Curtis E. Dyreson (Multimedia Information Retrieval, 2010)

An Adaptive Multi-level Hashing Structure for Fast Approximate Similarity Search. - Alexander Ocsa; Elaine P. M. de Sousa (J. Inf. Data Manag., 2010)

Non-dermatoscopic Image Analysis for the Recognition of Malignant Skin Diseases with Convolutional Neural Network and Autoencoders. - Ricardo Coronado; Alexander Ocsa; Oscar Quispe (CIARP, 2017)

On Semantic Solutions for Efficient Approximate Similarity Search on Large-Scale Datasets. - Alexander Ocsa; Jose Luis Huillca; Cristian Lopez Del Alamo (CIARP, 2017)

Approximate nearest neighbors by deep hashing on large-scale search: Comparison of representations and retrieval performance. - Alexander Ocsa; Jose Luis Huillca; Ricardo Coronado; Oscar Quispe; Carlos Arbieto; Cristian Lopez (LA-CCI, 2017)

Latent semantic indexing and convolutional neural network for multi-label and multi-class text classification. - Oscar Quispe; Alexander Ocsa; Ricardo Coronado (LA-CCI, 2017)