Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Smartphone picture organization: A hierarchical approach   We live in a society where the large majority of the population has a
camera-equipped smartphone. In addition, hard drives and cloud storage are
getting cheaper and cheaper, leading to a tremendous growth in stored personal
photos. Unlike photo collections captured by a digital camera, which typically
are pre-processed by the user who organizes them into event-related folders,
smartphone pictures are automatically stored in the cloud. As a consequence,
photo collections captured by a smartphone are highly unstructured and because
smartphones are ubiquitous, they present a larger variability compared to
pictures captured by a digital camera. To solve the need of organizing large
smartphone photo collections automatically, we propose here a new methodology
for hierarchical photo organization into topics and topic-related categories.
Our approach successfully estimates latent topics in the pictures by applying
probabilistic Latent Semantic Analysis, and automatically assigns a name to
each topic by relying on a lexical database. Topic-related categories are then
estimated by using a set of topic-specific Convolutional Neuronal Networks. To
validate our approach, we ensemble and make public a large dataset of more than
8,000 smartphone pictures from 10 persons. Experimental results demonstrate
better user satisfaction with respect to state of the art solutions in terms of
organization.

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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: math