Feature selection and classification: A developmental study

Two hundred and thirteen children between the ages of 4 and 16 sorted 30 complex objects freely into groups. These were either schematic faces, schematic imaginary animals, or histoform patterns and were constructed from 9 independently and continuously varying features, each with 10 levels. The three sets were equivalent in terms of underlying numerical structure. A new method of analysis of the groups formed yielded the following direct measures of subjective organization in the sorting of each child: the number of features used in sorting, the accuracy of sorting, and the number of independent dimensions of classification. Both the material and the analysis of sorting were devised on the assumption that only some of the component features of complex objects are used for classification, while others are ignored. Sorting performance differed markedly both with age and with different types of material. The improvement in sorting ability with age, except for the youngest children, could be attributed to an increase in the number of features used rather than an improvement in the accuracy of use. In contrast, the poor sorting of histoform patterns as opposed to faces and animals was due to a low level of sorting accuracy. The basic results on the development of classification confirmed previous studies, and hence suggest that it is valid to consider feature selection as a basic component of classification.     

EXTINCTION,NATURAL EVIL,AND THE COSMIC CROSS

Did the God of the Bible create a Darwinian world in which violence and suffering (disvalue) are the means by which the good (value) is realized? This is Christopher Southgate's insightful and dramatic formulation of the theodicy problem. In addressing this problem, the Exeter theologian rightly invokes the Theology of the Cross in its second manifestation, that is, we learn from the cross of Jesus Christ that God is present to nonhuman as well as human victims of predation and extinction. God co‐suffers with creatures in their despair, abandonment, physical suffering, and death. What I will add with more force than Southgate is this: the Easter resurrection is a prolepsis of the eschatological new creation, and it is God's new creation which retroactively determines past creation. Although this does not eliminate the theodicy question, it lessens its moral sting.     

REDEEMING A CRUCIFORM NATURE

Christopher Southgate recognizes that the natural world is both ambiguous, mixing goods and bads, and simultaneously dramatically creative, such creativity resulting from just this ambiguous challenge of environmental conductance and resistance. Life is lived in green pastures and in the valley of the shadow of death. Perhaps this is the only way God could have created the values found on Earth, by means of such disvalues, as a Darwinian natural selection account suggests. Generating Earth's biodiversity requires struggle, success, and failure—and such an only way would constrain a powerful, loving God. But Southgate judges this too uncaring of suffering individuals, the products of evolution sacrificed to the systemic process. Perhaps God through Jesus redeems all the sacrificed individuals—pelicans in a pelican heaven—but redemption of all the bullfrogs and acorns becomes an incredible hope. Nature is a cruciform creation, where life persists in perpetual perishing. Life is forever conserved, regenerated, redeemed.     

Choice is Not True or False: The Domain of Rhetorical Argumentation

Leading contemporary argumentation theories such as those of Ralph Johnson, van Eemeren and Houtlosser, and Tindale, in their attempt to address rhetoric, tend to define rhetorical argumentation with reference to (a) the rhetorical arguer’s goal (to persuade effectively), and (b) the means he employs to do so. However, a central strand in the rhetorical tradition itself, led by Aristotle, and arguably the dominant view, sees rhetorical argumentation as defined with reference to the domain of issues discussed. On that view, the domain of rhetorical argumentation is centered on choice of action in the civic sphere, and the distinctive nature of issues in this domain is considered crucial. Hence, argumentation theories such as those discussed, insofar as they do not see rhetoric as defined by its distinctive domain, apply an understanding of rhetoric that is historically inadequate. It is further suggested that theories adopting this understanding of rhetoric risk ignoring important distinctive features of argumentation about action.

Hiring bias and the disabled interviewee: Effects of manipulating work history and disability information of the disabled job applicant

Ninety MBA students were randomly assigned to one of six experimental conditions in a 3(levels of disability) × 2(levels of employment history) design. Levels of disability (Physical, Psychiatric, and No Disability) and levels of employment history (Good and Poor) were manipulated by giving the subjects bogus information on a job application form prior to hearing a taped job interview. Subjects then rated the quality of the interview and stated the probability that they would hire the interviewee. Evaluations of the interview and hiring probabilities were different between the experimental groups. Implications and suggestions for future research are discussed.     

MODELING THE COSMOS: TRANSFORMATIVE PEDAGOGY IN SCIENCE AND RELIGION

This article reflects on the classroom pedagogy promoted by Christopher Southgate and its implications for the science–theology conversation. It highlights several important aspects of Southgate's pedagogy. The use of models of God, humanity, and cosmos emphasize relationality while encouraging the synthesizing of ideas. The promotion of holism in theological reflection is vital for nurturing students to become theologians themselves through the active reevaluation of key doctrines and ideas. An emphasis on ethical considerations reinforces synthesis between theology, science, and ethics, and is vital for perspective transformation. These aspects of Southgate's teaching should be recognized as vital for promoting intellectual independence, partnership, and theological transformation, all of which are essential to good science and theology pedagogy.     

Creation,Redemption and Theodicy in the Work of Christopher Southgate

This paper analyzes the work of Christopher Southgate with a view toward interpreting his insights into the integrity of creation, redemption and theodicy in light of Saint Augustine's theology. Drawing on various contributions that Southgate has made, this paper seeks to establish parallels, connections and some agreement between his work and the great African bishop without papering over the obvious disagreements over the Fall, Original Sin, the premises of salvation and biblical hermeneutics.     

CRITICAL AFTERWORD

This Afterword looks back over both parts of the discussion of “God and the World of Signs”—“Semiotics and the Emergence of Life” in the previous issue of Zygon and “Semiotics and Theology” in this issue. Three central questions in this extended debate are identified: What is the nature of biological organisms and biological evolution? What is the relationship between the natural world and the Triune God of the Christian theological tradition? What should be the goals of Science/Religion Studies? I summarize the answers that Christopher Southgate and Andrew Robinson have given in their program and the challenges raised by their critics. Their strengths and weaknesses are assessed. In the conclusion I ask readers to imagine that this particular research program were to be taken as a model program in science‐and‐religion research (with some tweaking) and then consider the features of the program that could function as standards for scholars working in other areas of the dialogue.     

EVOLUTION AND THEODICY: HOW (NOT) TO DO SCIENCE AND THEOLOGY

This article uses Christopher Southgate's work and engagement with other scholars on the topic of evolutionary theodicy as a case study in the dialogue of science and Christian theology. A typology is outlined of ways in which the voices of science and the Christian tradition may be related in a science–theology dialogue, and examples of each position on the typology are given from the literature on evolution and natural evil. The main focus is on Southgate's evolutionary theodicy and the alternative proposal by Neil Messer. By bringing these two accounts into dialogue, some key methodological issues are brought into focus, enabling some conclusions to be drawn about the range and limits of fruitful methodological possibilities for dialogues between science and Christian theology.     

EVOLUTIONARY THEODICY,REDEMPTION, AND TIME

Of the many problems which evolutionary theodicy tries to address, the ones of animal suffering and extinction seem especially intractable. In this essay, I show how C. D. Broad's growing block conception of time does much to ameliorate the problems. Additionally, I suggest it leads to another way of understanding the soul. Instead of it being understood as a substance, it is seen as a history—a history which is resurrected in the end times. Correspondingly, redemption, I argue, should not be seen as an event which redeems some future portion of time. God's triumph is over all of history, not just some future temporal portion.