1,833,759 research outputs found
Automatic Lesser Kestrel’s Gender Identification using Video Processing
Traditionally, animal surveillance is a common task for biologists. However, this task is often accompanied
by the inspection of huge amounts of video. In this sense, this paper proposes an automatic video processing
algorithm to identify the gender of a kestrel species. It is based on optical flow and texture analysis. This
algorithm makes it possible to identify the important information and therefore, minimizing the analysis time
for biologists. Finally, to validate this algorithm, it has been tested against a set of videos, getting good
classification results.Junta de AndalucĂa P10-TIC-570
Automatic Software Repair: a Bibliography
This article presents a survey on automatic software repair. Automatic
software repair consists of automatically finding a solution to software bugs
without human intervention. This article considers all kinds of repairs. First,
it discusses behavioral repair where test suites, contracts, models, and
crashing inputs are taken as oracle. Second, it discusses state repair, also
known as runtime repair or runtime recovery, with techniques such as checkpoint
and restart, reconfiguration, and invariant restoration. The uniqueness of this
article is that it spans the research communities that contribute to this body
of knowledge: software engineering, dependability, operating systems,
programming languages, and security. It provides a novel and structured
overview of the diversity of bug oracles and repair operators used in the
literature
Isomorphisms of scattered automatic linear orders
We prove that the isomorphism of scattered tree automatic linear orders as
well as the existence of automorphisms of scattered word automatic linear
orders are undecidable. For the existence of automatic automorphisms of word
automatic linear orders, we determine the exact level of undecidability in the
arithmetical hierarchy
Improving Sweden's Automatic Pension Adjustment Mechanism
The public pension world has seen two innovations in recent years. One is the emergence of notional defined contribution (NDC) plans. The other is the introduction of automatic adjustment mechanisms to help keep pension systems solvent when the economy weakens. This brief looks at the Swedish system to demonstrate how NDCs work and evaluates the workÂings of the automatic adjustment mechanism in the wake of the 2008 financial crisis. Sweden passed reform legislation in 1994 that inÂtroduced a partially-funded NDC plan.1 The arrangeÂment is conceptually similar to a defined contribution plan in that contributions are accumulated in indiÂvidual accounts, but different in that the accounts are not fully funded and may be financed entirely on a pay-as-you-go basis. In this setting, the rate of return credited on the account assets is based on a rule rathÂer than on actual returns. The Swedish system uses a notional interest rate equal to the rate of growth of average earnings. However, if a calculation suggests a potential deficit, the notional interest rate is autoÂmatically reduced through a “brake” mechanism. The recent financial crisis has highlighted ways in which the brake mechanism could be improved. This brief proceeds as follows. The first section describes Sweden’s NDC plan. The second describes the Swedish brake mechanism. The third describes two problems with the current adjustment procedure: 1) it creates the likelihood of large shocks for retirÂees; and 2) while disadvantaging retirees, it tends to advantage workers. The fourth section presents posÂsible fixes for the current problems. The final section concludes that the Swedish NDC plan could function more effectively with modest changes to the brake mechanism.
Automatic Hermiticity
We study a diagonalizable Hamiltonian that is not at first hermitian.
Requirement that a measurement shall not change one Hamiltonian eigenstate into
another one with a different eigenvalue imposes that an inner product must be
defined so as to make the Hamiltonian normal with regard to it. After a long
time development with the non-hermitian Hamiltonian, only a subspace of
possible states will effectively survive. On this subspace the effect of the
anti-hermitian part of the Hamiltonian is suppressed, and the Hamiltonian
becomes hermitian. Thus hermiticity emerges automatically, and we have no
reason to maintain that at the fundamental level the Hamiltonian should be
hermitian. If the Hamiltonian is given in a local form, a conserved probability
current density can be constructed with two kinds of wave functions. We also
point out a possible misestimation of a past state by extrapolating back in
time with the hermitian Hamiltonian. It is a seeming past state, not a true
one.Comment: 8 pages, references added, typos etc. corrected, the final version to
appear in Prog.Theor.Phy
A Critical Review of "Automatic Patch Generation Learned from Human-Written Patches": Essay on the Problem Statement and the Evaluation of Automatic Software Repair
At ICSE'2013, there was the first session ever dedicated to automatic program
repair. In this session, Kim et al. presented PAR, a novel template-based
approach for fixing Java bugs. We strongly disagree with key points of this
paper. Our critical review has two goals. First, we aim at explaining why we
disagree with Kim and colleagues and why the reasons behind this disagreement
are important for research on automatic software repair in general. Second, we
aim at contributing to the field with a clarification of the essential ideas
behind automatic software repair. In particular we discuss the main evaluation
criteria of automatic software repair: understandability, correctness and
completeness. We show that depending on how one sets up the repair scenario,
the evaluation goals may be contradictory. Eventually, we discuss the nature of
fix acceptability and its relation to the notion of software correctness.Comment: ICSE 2014, India (2014
Automatic transponder
A method and apparatus for the automatic, remote measurement of the internal delay time of a transponder at the time of operation is provided. A small portion of the transmitted signal of the transponder is converted to the receive signal frequency of the transponder and supplied to the input of the transponder. The elapsed time between the receive signal locally generated and the receive signal causing the transmission of the transmitted signal is measured, said time being representative of or equal to the internal delay time of the transponder at the time of operation
Time course analyses confirm independence of automatic imitation and spatial compatibility effects
Automatic imitation has been used as a behavioural index of the functioning of the human mirror system (e.g. Brass, Bekkering, Wohlschlager, & Prinz, 2000; Heyes, Bird, Johnson, & Haggard, 2005; Kilner, Paulignan, & Blakemore, 2003). However, several papers have criticised the assumption that automatic imitation is mediated by the mirror system on the grounds that automatic imitation has been confounded with simple spatial compatibility (Aicken, Wilson, Williams, & Mon-Williams, 2007; Bertenthal, Longo, and Kosobud, 2006; Jansson, Wilson, Williams, & Mon-Williams, 2007). Two experiments are reported in which, in contrast with previous studies, automatic imitation was measured on both spatially compatible and spatially incompatible trials, and automatic imitation was shown to be present regardless of spatial compatibility. Additional features of the two experiments allowed measurement of the time courses of the automatic imitation and spatial compatibility effects both within and across trials. It was found that automatic imitation effects follow a different time course from spatial compatibility effects, providing further evidence for their independence and supporting the use of automatic imitation as a behavioural marker of mirror system functioning
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