24,767 research outputs found
Machine Ruling
Emerging technologies, such as big data, Internet of things, cloud computing,
mobile Internet, and robotics, breed and expedite new applications and fields.
In the mean while, the long-term prosperity and happiness of human race demands
advanced technologies. In this paper, the aforementioned emerging technologies
are applied to management and governance for the long-term prosperity and
happiness of human race. The term "machine ruling" is coined, introduced, and
justified. Moreover, the framework and architecture of machine ruling are
proposed. Enabling technologies and challenges are discussed
On the inner products of some Deligne--Lusztig type representations
In this paper we introduce a family of Deligne--Lusztig type varieties
attached to connected reductive groups over quotients of discrete valuation
rings, naturally generalising the higher Deligne--Lusztig varieties and some
constructions related to the algebraisation problem raised by Lusztig. We
establish the inner product formula between the representations associated to
these varieties and the higher Deligne--Lusztig representations.Comment: 14 page
A note on cusp forms and representations of
Cusp forms are certain holomorphic functions defined on the upper half-plane,
and the space of cusp forms for the principal congruence subgroup ,
a prime, is acted by . Meanwhile, there is a
finite field incarnation of the upper half-plane, the Deligne--Lusztig (or
Drinfeld) curve, whose cohomology space is also acted by
. In this note we compute the relation between
these two spaces in the weight case.Comment: shortened to 6 pages, and Lem~2.2 is upgrade
On the Generative Power of Omega-Grammars and Omega-Automata
An \omega-grammar is a formal grammar used to generate \omega-words (i.e.
infinite length words), while an \omega-automaton is an automaton used to
recognize \omega-words. This paper gives clean and uniform definitions for
\omega-grammars and \omega-automata, provides a systematic study of the
generative power of \omega-grammars with respect to \omega-automata, and
presents a complete set of results for various types of \omega-grammars and
acceptance modes. We use the tuple (\sigma,\rho,\pi) to denote various
acceptance modes, where \sigma denotes that some designated elements should
appear at least once or infinitely often, \rho denotes some binary relation
between two sets, and \pi denotes normal or leftmost derivations. Technically,
we propose (\sigma,\rho,\pi)-accepting \omega-grammars, and systematically
study their relative generative power with respect to (\sigma,\rho)-accepting
\omega-automata. We show how to construct some special forms of
\omega-grammars, such as \epsilon-production-free \omega-grammars. We study the
equivalence or inclusion relations between \omega$-grammars and \omega-automata
by establishing the translation techniques. In particular, we show that, for
some acceptance modes, the generative power of \omega-CFG is strictly weaker
than \omega-PDA, and the generative power of \omega-CSG is equal to \omega-TM
(rather than linear-bounded \omega-automata-like devices). Furthermore, we
raise some remaining open problems for two of the acceptance modes
Characterization of Pentagons Determined by Two X-rays
This paper contains some results of pentagons which can be determined by two
X-rays. The results reveal this problem is more complicated.Comment: 4 pages, 2 figure
Anomaly Detection and Redundancy Elimination of Big Sensor Data in Internet of Things
In the era of big data and Internet of things, massive sensor data are
gathered with Internet of things. Quantity of data captured by sensor networks
are considered to contain highly useful and valuable information. However, for
a variety of reasons, received sensor data often appear abnormal. Therefore,
effective anomaly detection methods are required to guarantee the quality of
data collected by those sensor nodes. Since sensor data are usually correlated
in time and space, not all the gathered data are valuable for further data
processing and analysis. Preprocessing is necessary for eliminating the
redundancy in gathered massive sensor data. In this paper, the proposed work
defines a sensor data preprocessing framework. It is mainly composed of two
parts, i.e., sensor data anomaly detection and sensor data redundancy
elimination. In the first part, methods based on principal statistic analysis
and Bayesian network is proposed for sensor data anomaly detection. Then,
approaches based on static Bayesian network (SBN) and dynamic Bayesian networks
(DBNs) are proposed for sensor data redundancy elimination. Static sensor data
redundancy detection algorithm (SSDRDA) for eliminating redundant data in
static datasets and real-time sensor data redundancy detection algorithm
(RSDRDA) for eliminating redundant sensor data in real-time are proposed. The
efficiency and effectiveness of the proposed methods are validated using
real-world gathered sensor datasets
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Family income affects children's altruistic behavior in the dictator game.
This study aimed to examine how family income and social distance influence young rural Chinese children's altruistic behavior in the dictator game (DG). A total of 469 four-year-old children from eight rural areas in China, including many children left behind by parents who had migrated to urban areas for work, played the DG. Stickers comprised the resource, while recipients in the game were assumed to be either their friends or strangers, with the social distance (i.e., strangers compared to friends) as a between-subjects variable. Children donated significantly more stickers to their friends than to strangers. Moreover, children from lower income families donated more stickers than children from higher income families. However, no gender and parental migrant status differences in children's prosocial behaviors were evident in this sample. Findings of this study suggest that children's altruistic behaviours to peers are influenced by family characteristics since preschool age. The probable influence of local socialization practices on development and the possible adaptive significance were discussed
Pathwise stochastic integrals and It\^o formula for multidimensional Gaussian processes
In this article we study existence of pathwise stochastic integrals with
respect to a general class of -dimensional Gaussian processes and a wide
class of adapted integrands. More precisely, we study integrands which are
functions that are of locally bounded variation with respect to all variables.
Moreover, multidimensional It\^o formula is derived.Comment: This paper has been withdrawn by the author due to a false argument
in the proof of Theorem 3.
Reconstruction of Missing Big Sensor Data
With ubiquitous sensors continuously monitoring and collecting large amounts
of information, there is no doubt that this is an era of big data. One of the
important sources for scientific big data is the datasets collected by Internet
of things (IoT). It's considered that these datesets contain highly useful and
valuable information. For an IoT application to analyze big sensor data, it is
necessary that the data are clean and lossless. However, due to unreliable
wireless link or hardware failure in the nodes, data loss in IoT is very
common. To reconstruct the missing big sensor data, firstly, we propose an
algorithm based on matrix rank-minimization method. Then, we consider IoT with
multiple types of sensor in each node. Accounting for possible correlations
among multiple-attribute sensor data, we propose tensor-based methods to
estimate missing values. Moreover, effective solutions are proposed using the
alternating direction method of multipliers. Finally, we evaluate the
approaches using two real sensor datasets with two missing data-patterns, i.e.,
random missing pattern and consecutive missing pattern. The experiments with
real-world sensor data show the effectiveness of the proposed methods
Generic character sheaves on reductive groups over a finite ring
In this paper we propose a construction of generic character sheaves on
reductive groups over finite local rings at even levels, whose characteristic
functions are higher Deligne--Lusztig characters when the parameters are
generic. We formulate a conjecture on the simple perversity of these complexes,
and we prove it in the level two case (thus generalised a result of Lusztig
from the function field case). We then discuss the induction and restriction
functors, as well as the Frobenius reciprocity, based on the perversity.Comment: Add a new result and some minor correction
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