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“… As a departure from such traditional trust models, we propose a generic, machine learning approach based trust framework where an agent uses its own previous transactions (with other agents) to build a knowledge base, and utilize this to assess the trustworthiness of a transaction based on associated features, which are capable of distinguishing successful transactions from unsuccessful ones. These features are harnessed using appropriate machine learning algorithms to extract relationships between the potential transaction and previous transactions.…”
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“We study the 2-dimensional vector packing problem, which is a generalization of the classical bin packing problem where each item has 2 distinct weights and each bin has 2 corresponding capacities. The goal is to group items into minimum number of bins, without violating the bin capacity constraints.…”
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“Thinning of character images is a big challenge. Removal of strokes or deformities in thinning is a difficult problem.…”
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“… We examine here how the algorithm of phyllotaxis could contribute to the analysis of the structure of collagen fibrils. Such an algorithm indeed leads to organizations giving to each element of the assembly the most homogeneous and isotropic dense environment in a situation of cylindrical symmetry. The scattered intensity expected from a phyllotactic distribution of triple helices in collagen fibrils well agrees with the major features observed along the equatorial direction of their X ray patterns. Following this approach, the aggregation of triple helices in fibrils should be considered within the frame of soft condensed matter studies rather than that of molecular crystal studies.”
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“Even when the numbers of non-zero entries per column/row in the measurement matrices are limited to $O(1)$, numerical experiments indicate that the algorithm can still typically recover the original signal perfectly with an $O(N)$ computational cost per update as well if the density $\rho$ of non-zero entries of the signal is lower than a certain critical value $\rho_{\rm th}(\alpha)$ as $N,M \to \infty$.”
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“We investigate the evolutionary dynamics of an idealised model for the robust self-assembly of two-dimensional structures called polyominoes. The model includes rules that encode interactions between sets of square tiles that drive the self-assembly process. The relationship between the model’s rule set and its resulting self-assembled structure can be viewed as a genotype-phenotype map and incorporated into a genetic algorithm.”
Monthly Archives: April 2011
David Graeber explains why Workantile Exchange is hard to explain to some folks
Not literally, but there is a kernel of truth in this particular passage from his “On the Phenomenology of Giant Puppets: broken windows, imaginary jars of urine, and the cosmological role of the police in American culture” [PDF] that informs my current understanding of how Workantile Exchange is set apart from traditional “economic development” projects. And also, somehow, it seems to be “about” the frustrations that Agile Software gurus are feeling, as the movement they framed as a fundamentally social thing reverts to a mere “strategy” in corporate life.
It might be helpful here to reflect on the nature of the violence—”force”, if you like—that police represent. A former LAPD officer writing about the Rodney King case pointed out that in most of the occasions in which a citizen is severely beaten by police, it turns out that the victim was actually innocent of any crime. “Cops don’t beat up burglars”, he observed. If you want to cause a policeman to be violent, the surest way is to challenge their right to define the situation. This is not something a burglar is likely to do. This of course makes perfect sense if we remember that police are, essentially, bureaucrats with guns. Bureaucratic procedures are all about questions of definition. Or, to be more precise, they are about the imposition of a narrow range of pre-established schema to a social reality that is, usually, infinitely more complex: a crowd can be either orderly or disorderly; a citizen can be white, black, Hispanic, or an Asian/ Pacific Islander; a petitioner is or is not in possession of a valid photo ID. Such simplistic rubrics can only be maintained in the absence of dialogue; hence, the quintessential form of bureaucratic violence is the wielding of the truncheon when somebody “talks back”.
I began by saying that this was to be an essay of interpretation. In fact, it has been just as much an essay about frustrated interpretation; about the limits of interpretation. Ultimately, I think this frustration can be traced back to the very nature of violence—bureaucratic or otherwise. Violence is in fact unique among forms of human action in that it holds out the possibility of affecting the actions of others about whom one understands nothing. If one wants to affect another’s actions in any other way, one must at least have some idea who they think they are, what they want, what they think is going on. Interpretation is required, and that requires a certain degree of imaginative identification. Hit someone over the head hard enough, all this becomes irrelevant. Obviously, two parties locked in an equal contest of violence would usually do well to get inside each other’s heads, but when access to violence becomes extremely unequal, the need vanishes. This is typically the case in situations of structural violence: of systemic inequality that is ultimately backed up by the threat of force. Structural violence always seems to create extremely lopsided structures of imagination. Gender is actually a telling example here. Women almost everywhere know a great deal about men’s work, men’s lives, and male experience; men are almost always not only ignorant about women’s lives, they often react with indignation at the idea they should even try to imagine what being a woman might be like. The same is typically the case in most relations of clear subordination: masters and servants, employers and employees, rich and poor. The victims of structural violence invariably end up spending a great deal of time imagining what it is like for those who benefit from it; the opposite rarely occurs. One concomitant is that the victims often end up identifying with, and caring about, the beneficiaries of structural violence—which, next to the violence itself, is probably one of the most powerful forces guaranteeing the perpetuation of systems of inequality. Another is that violence, as we’ve seen, allows the possibility of cutting through the subtleties of constant mutual interpretation on which ordinary human relations are based.
“Violence” here is used in the broad, structural sense we don’t get to talk about any more in American culture. Yet I think these troubled groups I’m thinking about—WorkEx and Agile—are facing it.