Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial Memory for Context Reasoning in Object Detection   Modeling instance-level context and object-object relationships is extremely
challenging. It requires reasoning about bounding boxes of different classes,
locations \etc. Above all, instance-level spatial reasoning inherently requires
modeling conditional distributions on previous detections. Unfortunately, our
current object detection systems do not have any {\bf memory} to remember what
to condition on! The state-of-the-art object detectors still detect all object
in parallel followed by non-maximal suppression (NMS). While memory has been
used for tasks such as captioning, they mostly use image-level memory cells
without capturing the spatial layout. On the other hand, modeling object-object
relationships requires {\bf spatial} reasoning -- not only do we need a memory
to store the spatial layout, but also a effective reasoning module to extract
spatial patterns. This paper presents a conceptually simple yet powerful
solution -- Spatial Memory Network (SMN), to model the instance-level context
efficiently and effectively. Our spatial memory essentially assembles object
instances back into a pseudo "image" representation that is easy to be fed into
another ConvNet for object-object context reasoning. This leads to a new
sequential reasoning architecture where image and memory are processed in
parallel to obtain detections which update the memory again. We show our SMN
direction is promising as it provides 2.2\% improvement over baseline Faster
RCNN on the COCO dataset so far.

8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph