Significant research has been devoted to detecting people in images and videos. In this paper we describe a human de- tection method that augments widely used edge-based fea- tures with texture and color information, providing us with a much richer descriptor set. This augmentation results in an extremely high-dimensional feature space (more than 170,000 dimensions). In such high-dimensional spaces, classical machine learning algorithms such as SVMs are nearly intractable with respect to training. Furthermore, the number of training samples is much (...) smaller than the dimensionality of the feature space, by at least an order of magnitude. Finally, the extraction of features from a densely sampled grid structure leads to a high degree of multicollinearity. To circumvent these data characteristics, we employ Partial Least Squares (PLS) analysis, an effi- cient dimensionality reduction technique, one which pre- serves significant discriminative information, to project the data onto a much lower dimensional subspace (20 dimen- sions, reduced from the original 170,000). Our human de- tection system, employing PLS analysis over the enriched descriptor set, is shown to outperform state-of-the-art tech- niques on three varied datasets including the popular INRIA pedestrian dataset, the low-resolution gray-scale Daim- lerChrysler pedestrian dataset, and the ETHZ pedestrian dataset consisting of full-length videos of crowded scenes. (shrink)

Eric Olsen argues from the fact that we once existed as fetal individuals to the conclusion that the Standard View of personal identity is mistaken. I shall establish that a similar argument focusing upon dead people opposes Olson’s favored Biological View of personal identity.

In this paper we examine the study of minerals from the Renaissance to the early nineteenth century in the light of the work of Michel Foucault on the history of systems of thought. In spite of a certain number of theoretical problems, Foucault's enterprise opens up to the historian of science a vast terrain for exploration. But this is the place neither for a general exegesis nor for a general criticism of his position; our aim here is the more modest (...) one of taking certain points from Foucault's study,The order of things, and seeing how far they can be extended into an area not explicitly considered in that work. (shrink)

Until fairly recently a common way of doing history of science was to pick up an important strand of contemporary scientific thought and to trace its origin back to the philosophical tangle of the scientific revolution. This approach conveniently by-passed the breakdowns of once useful and pervasive theories, and neglected the long intellectual journeys along devious routes. History of science read like a success story; the pioneers who failed were neither dismissed nor excused; they were simply ignored. The historian knew (...) what he was hunting for and he was careful to limit his search to areas where his quarry was sure to be found. This method, which has been dubbed the precursor-view, stands in contrast—albeit, not in opposition—to the contextual method, which aims at a better understanding of the actual thought-processes of the early scientists. On this second view, history of science must not only account for present theories in the light of past developments, it must also assess old theories in terms of the scientist's conceptual framework, and judge them against the background of the world picture of his age. This may lead the historian down the blind alleys of the past, chasing spurious attempts at explaining the nature of physical reality, but it can clear the ground for a less anachronistic interpretation of the emergence of modern science and the actual process of discovery. History of science acts as a winnowing fork, but we cannot suppose that the discoverer himself always separated the wheat from the chaff, and we must be ever wary of equating the dream with the task. (shrink)

Two recent papers by Michael Burke bearing upon the persistence of people and commonplace things illustrate the fact that the quest for synchronic ontological economy is likely to encourage a disturbing diachronic proliferation of entities. This discussion argues that Burke's promise of ontological economy is seriously compromised by the fact that his proposed metaphysic does violence to standard intuitions concerning the persistence of people and commonplace things. In effect, Burke would have us achieve synchronic economy (rejection of coincident entities) by (...) postulating strongly counterintuitive transtemporal claims of numerical diversity. The argument is made that the price of Burkean economy is too high. (shrink)

The paper „F. W. Bessel and Russian science by K. K. Lavrinovich published in NTM-Schriftenreihe contains several errors coming mainly from re-translations of German names and texts from Russian into German. The correct spelling of names and original texts are given here. Beside this, some additional information from sources not mentioned by the author is presented, and the kind of relationship between Bessel and W. Struve is discussed on the basis of their correspondence.

The precise relationship between Hobbes's political philosophy and his late history of the English Civil War remains something of a puzzle. Given his well known doubts about the epistemological status of history, Behemoth or the Long Parliament is often treated as little more than a procrustean effort at forcing complex historical events into the bed of abstract theory that he had developed earlier. On this view, even Noam Flinker, who offers one of the few studies devoted to a close reading (...) of Behemoth, argues that Hobbes intended the work to be self repudiating, and that the dialogue form and the apparent confusions of one of the participants were meant to point readers to �the less rhetorical logic of the Leviathan�. Others, more impressed by Hobbes�s pragmatic intentions than his methodological pretensions, note that a primary motive for his political arguments was a horror at first of the prospect and then of the reality of civil war. They thus emphasize the significance of Behemoth for Hobbes and his interpreters. Robert Kraynak, for example, argues that it �is a work of primary importance� in completing the �history of civilization which is the logical beginning point of Hobbes's thought�, and that a complete understanding of his political theory is impossible without his analysis of the way in which �doctrinal politics and disputative science� had created political chaos in England. This interpretation correctly emphasizes the role of ideas, as opposed to economic interests, in his explanation of civil conflict. It also rightly notes didactic continuities between Behemoth and his earlier work. However, I argue below that it overestimates the extent to which Hobbes treats the general idea of opinion as an eliminable product of �artificial� historical relations rather than as a permanent feature of human psychology and action. Thus, it discounts the extent to which his understanding of the relationship between opinion and civil war was a product of his philosophy rather than of a 'history of civilization'. (shrink)

Two recent papers by Michael Burke bearing upon the persistence of people and commonplace things illustrate the fact that the quest for synchronic ontological economy is likely to encourage a disturbing diachronic proliferation of entities. This discussion argues that Burke’s promise of ontological economy is seriously compromised by the fact that his proposed metaphysic does violence to standard intuitions concerning the persistence of people and commonplace things. In effect, Burke would have us achieve synchronic economy (rejection of coincident entities) by (...) postulating strongly counterintuitive transtemporal claims of numerical diversity. The argument is made that the price of Burkean economy is too high. (shrink)