Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: End-to-End Fine-Grained Action Segmentation and Recognition Using
  Conditional Random Field Models and Discriminative Sparse Coding   Fine-grained action segmentation and recognition is an important yet
challenging task. Given a long, untrimmed sequence of kinematic data, the task
is to classify the action at each time frame and segment the time series into
the correct sequence of actions. In this paper, we propose a novel framework
that combines a temporal Conditional Random Field (CRF) model with a powerful
frame-level representation based on discriminative sparse coding. We introduce
an end-to-end algorithm for jointly learning the weights of the CRF model,
which include action classification and action transition costs, as well as an
overcomplete dictionary of mid-level action primitives. This results in a CRF
model that is driven by sparse coding features obtained using a discriminative
dictionary that is shared among different actions and adapted to the task of
structured output learning. We evaluate our method on three surgical tasks
using kinematic data from the JIGSAWS dataset, as well as on a food preparation
task using accelerometer data from the 50 Salads dataset. Our results show that
the proposed method performs on par or better than state-of-the-art methods.

15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol