Children's Inferencing Behavior

1986 ◽  
Vol 17 (5) ◽  
pp. 369-381 ◽  
Author(s):  
Merlyn J. Behr ◽  
Helen Adi Khoury
Keyword(s):  
Task Difficulty ◽  
Fifth Graders ◽  
Third Graders ◽  
Performance Criteria ◽  
Graphic Mode ◽  
The Third ◽  
Mode Of Presentation ◽  
The Face ◽  
Disconfirming Evidence ◽  
Better Than

Third and fifth graders were given a sequence of number pairs and asked ro discover the function rule relating them, test the hypothesis, and generalize it to other instances. The fifth graders were better than the third graders on all performance criteria. Task difficulty depended on the funcuon. Some functions were easier when presented in a graphic mode, others in a symbolic mode. Whether inferences made use of abscissa-ordinate pairs, in contrast to a sequence of ordinate values, appeared to depend on both function and mode of presentation. Unlike adults, the children seemed ready to relinquish a hypothesis in the face of disconfirming evidence.

Research Report: Improving Multiplication Skills

1985 ◽  
Vol 32 (7) ◽  
pp. 52
Author(s):  
Marilyn N. Suydam
Keyword(s):  
Fourth Graders ◽  
Third Graders ◽  
Mathematics Assessment ◽  
Bad News ◽  
Good News ◽  
Research Report ◽  
The Third ◽  
Percentage Points ◽  
Basic Facts ◽  
Better Than

Did you hear that students' knowledge of multiplication basic facts improved decidedly between the second national mathematics assessment in 1978 and the third assessment in 1982 (NAEP 1983)? Average scores of nine-year-olds rose from 60 percent to 66 percent, ranging from 70–85 percent on easier facts to 50–60 percent on harder facts. Fourth graders performed about forty percentage points better than third graders. By age thirteen. scores were 90 percent or above on both assessments. That's the good news. The bad news is that results were not as good for conceptual, computational. or problem-solving items.

The Cognitive Reality of Hierarchic Structure in Music

1989 ◽  
Vol 6 (4) ◽  
pp. 397-430 ◽  
Author(s):  
Mary Louise Serafine ◽  
Noah Glassman ◽  
Cornell Overbeeke
Keyword(s):  
Similarity Judgment ◽  
Judgment Task ◽  
The Third ◽  
Hierarchic Structure ◽  
The Face ◽  
Similarity Judgments ◽  
Type 3 ◽  
Better Than

Six experiments examined the cognitive reality of hierarchic structure in music. The first experiment showed that subjects were only moderately able to match a performed rendition of a hierarchic structure to the piece of music from which it was derived, with performance slightly better than chance. Metric accent emerged as a significant predictor of the tones perceived by subjects as structurally important. The second experiment showed that subjects' correct matchings were unlikely to be based on aesthetic preference, because performed renditions of (rule-governed) structures were not regarded as aesthetically preferable to nonstructures. The third experiment attempted to increase subjects' matching of structures and their original pieces through various task modifications, but these modifications did not increase performance over the success rate achieved in Experiment 1. Three additional experiments determined whether evidence of the distinction between structureand surface could be obtained in various similarity judgment tasks. Pairs of musical fragments were composed so that the members of each pair embodied (1) the same structure and same surface harmony, or (2) the same structure but different surface harmony, or (3) a different structure but same surface harmony. The rating task used in Experiments 4 and 5 showed that the members of Type-2 pairs of fragments were perceived to be just as similar as the members of Type-1 pairs, but Type-3 pairs were rated significantly lower in similarity. Thus, similarity judgments were based on underlying hierarchic structure, even in the face of radical harmony differences on the surface. This effect increased in strength with repeated hearing. The results support the cognitive reality of hierarchic structure, but are influenced by the type of perception used in a particular similarity judgment task and by the experience of repeated hearings.

A Developmental Study of Intonation Recognition

1968 ◽  
Vol 11 (4) ◽  
pp. 825-832 ◽  
Author(s):  
Marilyn M. Corlew
Keyword(s):  
Significant Interaction ◽  
Multiple Choice ◽  
Semantic Content ◽  
First Grade ◽  
Choice Test ◽  
Developmental Study ◽  
Multiple Choice Test ◽  
The Third ◽  
Matching Test ◽  
Better Than

Two experiments investigated the information conveyed by intonation from speaker to listener. A multiple-choice test was devised to test the ability of 48 adults to recognize and label intonation when it was separated from all other meaning. Nine intonation contours whose labels were most agreed upon by adults were each matched with two English sentences (one with appropriate and one with inappropriate intonation and semantic content) to make a matching-test for children. The matching-test was tape-recorded and given to children in the first, third, and fifth grades (32 subjects in each grade). The first-grade children matched the intonations with significantly greater agreement than chance; but they agreed upon significantly fewer sentences than either the third or fifth graders. Some intonation contours were matched with significantly greater frequency than others. The performance of the girls was better than that of the boys on an impatient question and a simple command which indicates that there was a significant interaction between sex and intonation.

Using Connectionist Modules for Decision Support

1990 ◽  
Vol 29 (03) ◽  
pp. 167-181 ◽  
Author(s):  
G. Hripcsak
Keyword(s):  
Decision Support ◽  
Standard Deviation ◽  
Confidence Interval ◽  
Posterior Probability ◽  
Back Propagation ◽  
Connectionist Model ◽  
Test Set ◽  
The Third ◽  
Independent Test ◽  
Better Than

AbstractA connectionist model for decision support was constructed out of several back-propagation modules. Manifestations serve as input to the model; they may be real-valued, and the confidence in their measurement may be specified. The model produces as its output the posterior probability of disease. The model was trained on 1,000 cases taken from a simulated underlying population with three conditionally independent manifestations. The first manifestation had a linear relationship between value and posterior probability of disease, the second had a stepped relationship, and the third was normally distributed. An independent test set of 30,000 cases showed that the model was better able to estimate the posterior probability of disease (the standard deviation of residuals was 0.046, with a 95% confidence interval of 0.046-0.047) than a model constructed using logistic regression (with a standard deviation of residuals of 0.062, with a 95% confidence interval of 0.062-0.063). The model fitted the normal and stepped manifestations better than the linear one. It accommodated intermediate levels of confidence well.

The Alternatives to War

2018 ◽  
Author(s):  
James Pattison
Keyword(s):  
Just War ◽  
Just War Theory ◽  
Economic Sanctions ◽  
Responsibility To Protect ◽  
Military Action ◽  
Comprehensive Account ◽  
The Face ◽  
Normative Issues ◽  
Better Than

If states are not to go to war, what should they do instead? In The Alternatives to War: From Sanctions to Non-violence, James Pattison considers the case for the alternatives to military action to address mass atrocities and aggression. He covers the normative issues raised by measures ranging from comprehensive economic sanctions, diplomacy, and positive incentives, to criminal prosecutions, non-violent resistance, accepting refugees, and arming rebels. For instance, given the indiscriminateness of many sanctions regimes, are sanctions any better than war? Should states avoid ‘megaphone diplomacy’ and adopt more subtle measures? What, if anything, can non-violent methods such as civilian defence and civilian peacekeeping do in the face of a ruthless opponent? Is it a serious concern that positive incentives can appear to reward aggressors? Overall, Pattison provides a comprehensive account of the ethics of the alternatives to war. In doing so, he argues that the case for war is weaker and the case for many of the alternatives is stronger than commonly thought. The upshot is that, when reacting to mass atrocities and aggression, states are generally required to pursue the alternatives to war rather than military action. Pattison concludes that this has significant implications for pacifism, Just War Theory, and the responsibility to protect doctrine.

scholarly journals Deep learning for intelligent diagnosis in thyroid scintigraphy

2021 ◽  
Vol 49 (1) ◽  
pp. 030006052098284
Author(s):  
Tingting Qiao ◽  
Simin Liu ◽  
Zhijun Cui ◽  
Xiaqing Yu ◽  
Haidong Cai ◽  
...  
Keyword(s):  
Deep Learning ◽  
Disease Diagnosis ◽  
Kappa Coefficient ◽  
Diagnostic Assessment ◽  
First Year ◽  
Thyroid Scintigraphy ◽  
Diagnostic Ability ◽  
The Third ◽  
Classification Time ◽  
Better Than

Objective To construct deep learning (DL) models to improve the accuracy and efficiency of thyroid disease diagnosis by thyroid scintigraphy. Methods We constructed DL models with AlexNet, VGGNet, and ResNet. The models were trained separately with transfer learning. We measured each model’s performance with six indicators: recall, precision, negative predictive value (NPV), specificity, accuracy, and F1-score. We also compared the diagnostic performances of first- and third-year nuclear medicine (NM) residents with assistance from the best-performing DL-based model. The Kappa coefficient and average classification time of each model were compared with those of two NM residents. Results The recall, precision, NPV, specificity, accuracy, and F1-score of the three models ranged from 73.33% to 97.00%. The Kappa coefficient of all three models was >0.710. All models performed better than the first-year NM resident but not as well as the third-year NM resident in terms of diagnostic ability. However, the ResNet model provided “diagnostic assistance” to the NM residents. The models provided results at speeds 400 to 600 times faster than the NM residents. Conclusion DL-based models perform well in diagnostic assessment by thyroid scintigraphy. These models may serve as tools for NM residents in the diagnosis of Graves’ disease and subacute thyroiditis.

Epistemic self-esteem of philosophers in the face of philosophical disagreement

Human Affairs ◽  
2020 ◽  
Vol 30 (3) ◽  
pp. 328-342
Author(s):  
László Bernáth ◽  
János Tőzsér
Keyword(s):  
Self Esteem ◽  
Moderate Level ◽  
Significant Extent ◽  
Fourth Section ◽  
Philosophical Beliefs ◽  
Low Level ◽  
The Third ◽  
Epistemic Peers ◽  
The Face ◽  
And Performance

AbstractOur paper consists of four parts. In the first part, we describe the challenge of the pervasive and permanent philosophical disagreement over philosophers’ epistemic self-esteem. In the second part, we investigate the attitude of philosophers who have high epistemic self-esteem even in the face of philosophical disagreement and who believe they have well-grounded philosophical knowledge. In the third section, we focus on the attitude of philosophers who maintain a moderate level of epistemic self-esteem because they do not attribute substantive philosophical knowledge to themselves but still believe that they have epistemic right to defend substantive philosophical beliefs. In the fourth section, we analyse the attitude of philosophers who have a low level of epistemic self-esteem in relation to substantive philosophical beliefs and make no attempt to defend those beliefs. We argue that when faced with philosophical disagreement philosophers either have to deny that the dissenting philosophers are their epistemic peers or have to admit that doing philosophy is less meaningful than it seemed before. In this second case, philosophical activity and performance should not contribute to the philosophers’ overall epistemic self-esteem to any significant extent.

scholarly journals Contactless Video-Based Heart Rate Monitoring of a Resting and an Anesthetized Pig

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 442
Author(s):  
Meiqing Wang ◽  
Ali Youssef ◽  
Mona Larsen ◽  
Jean-Loup Rault ◽  
Daniel Berckmans ◽  
...  
Keyword(s):  
Heart Rate ◽  
Estimation Error ◽  
Well Being ◽  
Absolute Error ◽  
Mean Value ◽  
Video Data ◽  
Window Functions ◽  
The Face ◽  
Short Time ◽  
Better Than

Heart rate (HR) is a vital bio-signal that is relatively easy to monitor with contact sensors and is related to a living organism’s state of health, stress and well-being. The objective of this study was to develop an algorithm to extract HR (in beats per minute) of an anesthetized and a resting pig from raw video data as a first step towards continuous monitoring of health and welfare of pigs. Data were obtained from two experiments, wherein the pigs were video recorded whilst wearing an electrocardiography (ECG) monitoring system as gold standard (GS). In order to develop the algorithm, this study used a bandpass filter to remove noise. Then, a short-time Fourier transform (STFT) method was tested by evaluating different window sizes and window functions to accurately identify the HR. The resulting algorithm was first tested on videos of an anesthetized pig that maintained a relatively constant HR. The GS HR measurements for the anesthetized pig had a mean value of 71.76 bpm and standard deviation (SD) of 3.57 bpm. The developed algorithm had 2.33 bpm in mean absolute error (MAE), 3.09 bpm in root mean square error (RMSE) and 67% in HR estimation error below 3.5 bpm (PE3.5). The sensitivity of the algorithm was then tested on the video of a non-anaesthetized resting pig, as an animal in this state has more fluctuations in HR than an anaesthetized pig, while motion artefacts are still minimized due to resting. The GS HR measurements for the resting pig had a mean value of 161.43 bpm and SD of 10.11 bpm. The video-extracted HR showed a performance of 4.69 bpm in MAE, 6.43 bpm in RMSE and 57% in PE3.5. The results showed that HR monitoring using only the green channel of the video signal was better than using three color channels, which reduces computing complexity. By comparing different regions of interest (ROI), the region around the abdomen was found physiologically better than the face and front leg parts. In summary, the developed algorithm based on video data has potential to be used for contactless HR measurement and may be applied on resting pigs for real-time monitoring of their health and welfare status, which is of significant interest for veterinarians and farmers.

Neanderthal and the fossilization of the Third World

2020 ◽  
pp. 030631272098346
Author(s):  
Ryan Higgitt1
Keyword(s):  
South Asia ◽  
Structural Adjustment ◽  
Third World ◽  
Caste System ◽  
Late Nineteenth Century ◽  
Investment Bankers ◽  
The Third ◽  
The Face ◽  
Late Nineteenth ◽  
The Third World

Neanderthal is the quintessential scientific Other. In the late nineteenth century gentlemen-scientists, including business magnates, investment bankers and lawmakers with interest in questions of human and human societal development, framed Europe’s Neanderthal and South Asia’s indigenous Negritos as close evolutionary kin. Simultaneously, they explained Neanderthal’s extinction as the consequence of an inherent backwardness in the face of fair-skinned, steadily-progressing newcomers to ancient Europe who behaved in ways associated with capitalism. This racialization and economization of Neanderthal helped bring meaning and actual legal reality to Negritos via the British Raj’s official ‘schedules of backward castes and tribes’. It also helped justify the Raj’s initiation of market-oriented reforms in order to break a developmental equilibrium deemed created when fair-skinned newcomers to ancient South Asia enslaved Negritos in an enduring caste system. Neanderthal was integral to the scientism behind the British construction of caste, and contributed to India’s becoming a principal ‘Third World’ target of Western structural adjustment policies as continuation of South Asia’s ‘evolution assistance’.

Stereotypes in the face of reality: Intergroup contact inconsistent with group stereotypes changes attitudes more than stereotype-consistent contact

2020 ◽  
pp. 136843022094681
Author(s):  
Tibor Zingora ◽  
Loris Vezzali ◽  
Sylvie Graf
Keyword(s):  
Intergroup Contact ◽  
The Face ◽  
Positive Contact ◽  
Better Than

In a longitudinal two-wave study we examined the effects of positive and negative intergroup contact on outgroup attitudes in participants who perceived positive, negative, or ambivalent group stereotypes. We focused on stereotype-consistent contact, occurring when the valence of participants’ contact matches the valence of the perceived group stereotype (e.g., negative–negative), and on stereotype-inconsistent contact, occurring when the valence of contact contradicts the valence of the group stereotype (e.g., positive–negative). In relations of the Czech majority ( N = 890) with two distinctly stereotyped minorities, the Roma and the Vietnamese, stereotype-inconsistent contact predicted changes in attitudes better than stereotype-consistent contact. In the case of negatively stereotyped groups, positive intergroup contact is a viable way to improve attitudes. For positively stereotyped groups, negative contact can worsen attitudes, while positive contact does not have any attitude-improving effect. Interventions aimed at improving outgroup attitudes need to be applied with caution, considering the valence of group stereotypes.

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