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)

In July 2021, a series of gruesome videos exposed a case of brutal torture perpetrated by a guru or leader of the trans feminine hijra community in eastern India. This guru was allegedly of a Bangladeshi Muslim background, and various community members used the case as an alibi to target hijras of such national and religious origin, sometimes even demanding their expulsion from India. This phenomenon paralleled increasing affiliations between certain sections of trans/hijra communities and the Hindu Right. This article (...) situates this case within the broader rise of queer and trans Hindutva or Hindu nationalism and locates it as indicative of Hindutva’s expansion to its erstwhile ‘elsewheres’: areas outside its traditional strongholds such as eastern India and communities such as hijras who are known for their mixed religious practices and have been historically stigmatised by Hindu society. However, the article also analyses the case to show how hijras and related communities evidence contingently wavering political alliances and complex dynamics of intra-community power and resistance that remain irreducible to typical equations of Hindu right-wing politics. Queer/trans Hindutva might become disrupted by its potential constituents themselves, showing how Hindutva’s ‘elsewheres’ trouble its assimilationist capacities. (shrink)

This paper presents four theorems that connect continuity postulates in mathematical economics to solvability axioms in mathematical psychology, and ranks them under alternative supplementary assumptions. Theorem 1 connects notions of continuity (full, separate, Wold, weak Wold, Archimedean, mixture) with those of solvability (restricted, unrestricted) under the completeness and transitivity of a binary relation. Theorem 2 uses the primitive notion of a separately continuous function to answer the question when an analogous property on a relation is fully continuous. Theorem 3 provides (...) a portmanteau theorem on the equivalence between restricted solvability and various notions of continuity under weak monotonicity. Finally, Theorem 4 presents a variant of Theorem 3 that follows Theorem 1 in dispensing with the dimensionality requirement and in providing partial equivalences between solvability and continuity notions. These theorems are motivated for their potential use in representation theorems. (shrink)

In an important fragment in The Arcades Project, Walter Benjamin points to two perspectives on the present. The present is defined either as catastrophe or as triumph.1 Two perspectives, Benjamin seems to suggest, constitute two modes of temporality. Whereas for a triumphant history, the present is located in the duration of time that Benjamin famously calls “homogeneous, empty time,”2 in the movement of the same, for the historiography of the oppressed, on the other hand—and that is how Benjamin sees the (...) position of historical materialism—the present is located in a temporal disjuncture “in which time stands still and has come…. (shrink)

The placenta invades the adjacent uterus and controls the maternal immune system, like a cancer invades surrounding organs and suppresses the local immune response. Intriguingly, placental and cancer cells are globally hypomethylated and share an epigenetic phenomenon that is not well understood – they fail to silence repetitive DNA sequences that are silenced in healthy somatic cells. In the placenta, hypomethylation of retrotransposons has facilitated the evolution of new genes essential for placental function. In cancer, hypomethylation is thought to contribute (...) to activation of oncogenes, genomic instability, and retrotransposon unsilencing; the latter, we postulate, is possibly the most important consequence. Activation of placental retrotransposon-derived genes in cancer underpins our hypothesis that hypomethylation of these genes drives cancer cell invasion. This alludes to an interesting paradox, that while placental retrotransposon-derived genes are essential for promoting early hominid life, the same genes promote disease-susceptibility and death through cancer. Placental and cancer cells fail to silence retrotransposons that are normally silenced in healthy tissues. This has created new genes that are essential for placental function, yet they are also expressed in cancer. We hypothesize that active retrotransposons are a double-edged sword, contributing both adaptive and deleterious functions to biology. (shrink)

There are good reasons to think that Vāsudeva, Saṃkarṣaṇa, Pradyumna and Aniruddha already form a sort of implicit tetrad in the HV. The aim of this paper is to draw attention to often overlooked data related to this tetrad. (1) Upon first reading, the sequence of the HV episodes appears to be somewhat disconnected, and might lead one to conclude that no such grouping of these figures had as of yet taken place. Nevertheless, a closer look at the structure (...) of the text makes it clear that these four characters are one of the main focuses of the narrator’s interest. (2) The relationships of these four heroes to one another and to other deities will be examined. In addition to their close kinship, these heroes with the exception of Aniruddha, are also said to be incarnations of other entities; thus the logic underpinning this grouping must be located at this other level. (3) Considered against the backdrop of the entire HV, one realizes that a basic pattern is established in which the presence of the goddess, under various names and functions, is required not only to facilitate Saṃkarṣaṇa’s and Kr̥ṣṇa’s births and actions on earth, but also the actions of Pradyumna and Aniruddha. In fact, neither Kr̥ṣṇa Vāsudeva, nor Saṃkarṣaṇa, nor Pradyumna nor Aniruddha can act entirely independently of her assistance. (4) The HV does not employ the word vyūha in connection with the group of Vāsudeva, Saṃkarṣaṇa, Pradyumna and Aniruddha. Nevertheless, during the battle waged to deliver Aniruddha, the idea of vyūha is present even if the word itself is not. HV 110.47–49 describes a true trivyūha composed of three fighters (Vāsudeva, Saṃkarṣaṇa and Pradyumna), who are arranged in such a way as to protect one another. The episode of Aniruddha’s liberation appears to be the missing link, showing clearly that at least Kr̥ṣṇa, Saṃkarṣaṇa and Pradyumna are capable of assuming a vyūha as they fight the Rudraic forces. (shrink)

The classical electrodynamics of point charges can be made finite by the introduction of effects that temporally precede their causes. The idea of retrocausality is also inherent in the Feynman propagators of quantum electrodynamics. The notion allows a new understanding of the violation of the Bell inequalities, and of the world view revealed by quantum mechanics. Published in The Universe, Visions and Perspectives, edited by N. Dadhich and A. Kembhavi, Kluwer Academic Publishers, 2000, pages 35-50.