1,079 research outputs found

    A method for calculating the strength of evidence associated with an earwitness’s claimed recognition of a familiar speaker

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    The present paper proposes and demonstrates a method for assessing strength of evidence when an earwitness claims to recognize the voice of a speaker who is familiar to them. The method calculates a Bayes factor that answers the question: What is the probability that the earwitness would claim to recognize the offender as the suspect if the offender was the suspect versus what is the probability that the earwitness would claim to recognize the offender as the suspect if the offender was not the suspect but some other speaker from the relevant population? By “claim” we mean a claim made by a cooperative earwitness not a claim made by an earwitness who is intentionally deceptive. Relevant data are derived from naïve listeners' responses to recordings of familiar speakers presented in a speaker lineup. The method is demonstrated under recording conditions that broadly reflect those of a real case

    Haptic foot pedal : influence of shoe type, age, and gender on subjective pulse perception

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    This study investigates the influence of shoe type (sneakers and safety boots), age, and gender on the perception of haptic pulse feedback provided by a prototype accelerator pedal in a running stationary vehicle. Haptic feedback can be a less distracting alternative to traditionally visual and auditory in-vehicle feedback. However, to be effective, the device delivering the haptic feedback needs to be in contact with the person. Factors such as shoe type vary naturally over the season and could render feedback that is perceived well in one situation, unnoticeable in another. In this study, we evaluate factors that can influence the subjective perception of haptic feedback in a stationary but running car: shoe type, age, and gender. Thirty-six drivers within three age groups (≤39, 40-59, and ≥60) took part. For each haptic feedback, participants rated intensity, urgency, and comfort via a questionnaire. The perception of the haptic feedback is significantly influenced by the interaction between the pulse's duration and force amplitude and the participant's age and gender but not shoe type. The results indicate that it is important to consider different age groups and gender in the evaluation of haptic feedback. Future research might also look into approaches to adapt haptic feedback to the individual driver's preferences. Findings from this study can be applied to the design of an accelerator pedal in a car, for example, for a nonvisual in-vehicle warning, but also to plan user studies with a haptic pedal in general

    The DNA Paternity Test: Legislating the Future Paternity Action

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    Individuals brought action under the Federal Tort Claims Act (FTCA), asserting that two of them had been switched at birth in 1946 and sent home with the wrong mothers due to the negligence of the United States

    The DNA Paternity Test: Legislating the Future Paternity Action

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    Background:Investors brought Securities Act suits against corporation, individual directors, controlling shareholder, and investment bankers, alleging false registration statement

    The DNA Paternity Test: Legislating the Future Paternity Action

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    This Article will first briefly examine the historical development of the paternity suit in the beginning of Part II. Part II will then focus upon the standards of proof, presumptions and affirmative defenses concomitant to the traditional paternity action. Part III will examine the concepts and legal applications behind blood group / genetic marker testing and the probability formulas derived from these tests used to exclude or include a putative father. Part IV will examine the technology behind DNA paternity testing and its current evidentiary admissibility. Part V will discuss some of the substantive and public policy issues relating to paternity determinations. Finally, in Part VI, we offer our version of a possible model uniform paternity statute which would create either a rebuttable or a conclusive presumption when the paternity test results achieve a certain level indicating paternity
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