Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complex Events Recognition under Uncertainty in a Sensor Network   Automated extraction of semantic information from a network of sensors for
cognitive analysis and human-like reasoning is a desired capability in future
ground surveillance systems. We tackle the problem of complex decision making
under uncertainty in network information environment, where lack of effective
visual processing tools, incomplete domain knowledge frequently cause
uncertainty in the visual primitives, leading to sub-optimal decisions. While
state-of-the-art vision techniques exist in detecting visual entities (humans,
vehicles and scene elements) in an image, a missing functionality is the
ability to merge the information to reveal meaningful information for high
level inference. In this work, we develop a probabilistic first order predicate
logic(FOPL) based reasoning system for recognizing complex events in
synchronized stream of videos, acquired from sensors with non-overlapping
fields of view. We adopt Markov Logic Network(MLN) as a tool to model
uncertainty in observations, and fuse information extracted from heterogeneous
data in a probabilistically consistent way. MLN overcomes strong dependence on
pure empirical learning by incorporating domain knowledge, in the form of
user-defined rules and confidences associated with them. This work demonstrates
that the MLN based decision control system can be made scalable to model
statistical relations between a variety of entities and over long video
sequences. Experiments with real-world data, under a variety of settings,
illustrate the mathematical soundness and wide-ranging applicability of our
approach.

17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess