In this task, you are given a part of an article. Your task is to generate headline (title) for this text. Preferred headlines are under fifteen words.

[Q]: Reducing the amount of human supervision is a key problem in machine learning and a natural approach is that of exploiting the relations (structure) among different tasks. This is the idea at the core of multi-task learning. In this context a fundamental question is how to incorporate the tasks structure in the learning problem. We tackle this question by studying a general computational framework that allows to encode a-priori knowledge of the tasks structure in the form of a convex penalty; in this setting a variety of previously proposed methods can be recovered as special cases, including linear and non-linear approaches. Within this framework, we show that tasks and their structure can be efficiently learned considering a convex optimization problem that can be approached by means of block coordinate methods such as alternating minimization and for which we prove convergence to the global minimum.
[A]: Convex Learning of Multiple Tasks and their Structure

[Q]: The genetic selection of keywords set, the text frequencies of which are considered as attributes in text classification analysis, has been analyzed. The genetic optimization was performed on a set of words, which is the fraction of the frequency dictionary with given frequency limits. The frequency dictionary was formed on the basis of analyzed text array of texts of English fiction. As the fitness function which is minimized by the genetic algorithm, the error of nearest k neighbors classifier was used. The obtained results show high precision and recall of texts classification by authorship categories on the basis of attributes of keywords set which were selected by the genetic algorithm from the frequency dictionary.
[A]: Genetic Optimization of Keywords Subset in the Classification Analysis of Texts Authorship

[Q]: The sparse, hierarchical and modular processing of natural signals are characteristics that relate to the ability of humans to recognise objects with high accuracy. In this paper, we report a sparse feature processing and encoding method targeted at improving the recognition performance of automated object recognition system. Randomly distributed selection of localised gradient enhanced features followed by the application of aggregate functions represents a modular and hierarchical approach to detect the object features. These object features, in combination with minimum distance classifier, results in object recognition system accuracies of 93% using ALOI, 92% using COIL-100 databases and 69% using PASCAL visual object challenge 2007 database, respectively. Robustness of object recognition performance is tested for variations in noise, object scaling and object shifts. Finally, a comparison with 8 existing object recognition methods indicated an improvement in recognition accuracy of 10% in ALOI, 8% in case of COIL-100 databases and 10% in PASCAL visual object challenge 2007 database.
[A]:
Sparse distributed localised gradient fused features of objects