Keyphrases
- database
- hash table
- sparse representation
- information retrieval
- sparse data
- high dimensional
- content based retrieval
- compressive sensing
- automatic indexing
- sparse matrix
- indexing methods
- object retrieval
- multimedia databases
- random projections
- genetic algorithm
- indexing scheme
- indexing method
- index terms
- semantic indexing
- multidimensional arrays
- access methods
- dictionary learning
- indexing techniques
- text retrieval
- databases
- data sets