Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Convolutional Recurrent Reconstructive Network for Spatiotemporal
  Anomaly Detection in Solder Paste Inspection   Surface mount technology (SMT) is a process for producing printed circuit
boards. Solder paste printer (SPP), package mounter, and solder reflow oven are
used for SMT. The board on which the solder paste is deposited from the SPP is
monitored by solder paste inspector (SPI). If SPP malfunctions due to the
printer defects, the SPP produces defective products, and then abnormal
patterns are detected by SPI. In this paper, we propose a convolutional
recurrent reconstructive network (CRRN), which decomposes the anomaly patterns
generated by the printer defects, from SPI data. CRRN learns only normal data
and detects anomaly pattern through reconstruction error. CRRN consists of a
spatial encoder (S-Encoder), a spatiotemporal encoder and decoder
(ST-Encoder-Decoder), and a spatial decoder (S-Decoder). The ST-Encoder-Decoder
consists of multiple convolutional spatiotemporal memories (CSTMs) with
ST-Attention mechanism. CSTM is developed to extract spatiotemporal patterns
efficiently. Additionally, a spatiotemporal attention (ST-Attention) mechanism
is designed to facilitate transmitting information from the ST-Encoder to the
ST-Decoder, which can solve the long-term dependency problem. We demonstrate
the proposed CRRN outperforms the other conventional models in anomaly
detection. Moreover, we show the discriminative power of the anomaly map
decomposed by the proposed CRRN through the printer defect classification.

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The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph