Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Progressively Guide to Attend: An Iterative Alignment Framework for
  Temporal Sentence Grounding   A key solution to temporal sentence grounding (TSG) exists in how to learn
effective alignment between vision and language features extracted from an
untrimmed video and a sentence description. Existing methods mainly leverage
vanilla soft attention to perform the alignment in a single-step process.
However, such single-step attention is insufficient in practice, since
complicated relations between inter- and intra-modality are usually obtained
through multi-step reasoning. In this paper, we propose an Iterative Alignment
Network (IA-Net) for TSG task, which iteratively interacts inter- and
intra-modal features within multiple steps for more accurate grounding.
Specifically, during the iterative reasoning process, we pad multi-modal
features with learnable parameters to alleviate the nowhere-to-attend problem
of non-matched frame-word pairs, and enhance the basic co-attention mechanism
in a parallel manner. To further calibrate the misaligned attention caused by
each reasoning step, we also devise a calibration module following each
attention module to refine the alignment knowledge. With such iterative
alignment scheme, our IA-Net can robustly capture the fine-grained relations
between vision and language domains step-by-step for progressively reasoning
the temporal boundaries. Extensive experiments conducted on three challenging
benchmarks demonstrate that our proposed model performs better than the
state-of-the-arts.

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The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: econ
6
The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas