A Commitment-Theoretic Account of Moore's Paradox

Moore’s paradox, the infamous felt bizarreness of sincerely uttering something of the form “I believe grass is green, but it ain’t”—has attracted a lot of attention since its original discovery (Moore 1942). It is often taken to be a paradox of belief—in the sense that the locus of the inconsistency is the beliefs of someone who so sincerely utters. This claim has been labeled as the priority thesis: If you have an explanation of why a putative content could not be coherently believed, you thereby have an explanation of why it cannot be coherently asserted. (Shoemaker 1995). The priority thesis, however, is insufficient to give a general explanation of Moore-paradoxical phenomena and, moreover, it’s false. I demonstrate this, then show how to give a commitment-theoretic account of Moore Paradoxicality, drawing on work by Bach and Harnish. The resulting account has the virtue of explaining not only cases of pragmatic incoherence involving assertions, but also cases of cognate incoherence arising for other speech acts, such as promising, guaranteeing, ordering, and the like

Footing the Cost (of Normative Subjectivism)

I defend normative subjectivism against the charge that believing in it undermines the functional role of normative judgment. In particular, I defend it against the claim that believing that our reasons change from context to context is problematic for our use of normative judgments. To do so, I distinguish two senses of normative universality and normative reasons---evaluative universality and reasons and ontic universality and reasons. The former captures how even subjectivists can evaluate the actions of those subscribing to other conventions; the latter explicates how their reasons differ from ours. I then show that four aspects of the functional role of normativity---evaluation of our and others actions and reasons, normative communication, hypothetical planning, and evaluating counternromative conditionals---at most requires our normative systems being evaluatively universal. Yet reasonable subjectivist positions need not deny evaluative universality

Against Reflective Equilibrium for Logical Theorizing

I distinguish two ways of developing anti-exceptionalist approaches to logical revision. The first emphasizes comparing the theoretical virtuousness of developed bodies of logical theories, such as classical and intuitionistic logic. I'll call this whole theory comparison. The second attempts local repairs to problematic bits of our logical theories, such as dropping excluded middle (and modifying elsewhere accordingly) to deal with intuitions about vagueness. I'll call this the piecemeal approach. I then briefly discuss a problem I've developed elsewhere for comparisons of logical theories. Essentially, the problem is that a pair of logics may each evaluate the alternative as superior to themselves, resulting in oscillation between logical options. The piecemeal approach offers a way out of this problem andthereby might seem a preferable to whole theory comparisons. I go on to show that reflective equilibrium, the best known piecemeal method, has deep problems of its own when applied to logic

Expressivism Worth the Name -- A reply to Teemu Toppinen

I respond to an interesting objection to my 2014 argument against hermeneutic expressivism. I argue that even though Toppinen has identified an intriguing route for the expressivist to tread, the plausible developments of it would not fall to my argument anyways---as they do not make direct use of the parity thesis which claims that expression works the same way in the case of conative and cognitive attitudes. I close by sketching a few other problems plaguing such views

The Process and Me: Creating a Film About Archaeology

The film I created is entitled “The Bomb: The 2022 Trasimeno Regional Archaeological Project.” It documents the research methods used to ethically excavate an archaeological site and presents Professor Rebecca Schindler and Pedar Foss’s research from Castiglione del Lago, Italy. The stakes of the project are as follows: I wanted to create an entertaining documentary about the process of ethically excavating an archaeological dig site through the 2022 Trasimeno Regional Archaeology Project (TRAP) in Castiglione del Lago, Italy. This thesis contains three parts: Analysis of Archaeology in the Media, where I analyze two TV shows about archaeology as the main topic, On The Site, where I discuss what my thought process looked like during filming, and Reflections, where I analyze my strengths as a filmmaker and producer, as well as offer insight into my directorial choices. One of the primary focuses of the film will be how the research is presented, and that will be documented in the thesis below. My film attempts to display ethical archaeological practices and takes a different directorial approach from typical stereotypes of archaeology in the media. I address these stereotypes in the Analysis of Archaeology in the Media. My film attempts to illustrate the process to excavate a dig site and what I could do to ensure I was capturing the best footage. I address these issues in On The Site. My film attempts to find humor as my way of providing entertainment and perspective as a filmmaker. I address this directorial choice in the Reflections

Generating Adversarial Attacks for Sparse Neural Networks

Neural networks provide state-of-the-art accuracy for image classification tasks. However traditional networks are highly susceptible to imperceivable perturbations to their inputs known as adversarial attacks that drastically change the resulting output. The magnitude of these perturbations can be measured as Mean Squared Error (MSE). We use genetic algorithms to produce black-box adversarial attacks and examine MSE on state-of-the-art networks. This method generates an attack that converts 90% confidence on a correct class to 50% confidence of a targeted, incorrect class after 2000 epochs. We will generate and examine attacks and their MSE against several sparse neural networks. We theorize that there exists a sparse architecture used for image classification that reduces input image space and therefore that architecture will cause an increase in the MSE required for a classification change. Our work is relevant for security dependent applications of neural networks, low-power high-performance architectures, and systems architectures

Charles Robert (Bob) Schuster: 1930–2011

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/86951/1/j.1360-0443.2011.03480.x.pd

Intrinsic Universality in Self-Assembly

We show that the Tile Assembly Model exhibits a strong notion of universality where the goal is to give a single tile assembly system that simulates the behavior of any other tile assembly system. We give a tile assembly system that is capable of simulating a very wide class of tile systems, including itself. Specifically, we give a tile set that simulates the assembly of any tile assembly system in a class of systems that we call \emph{locally consistent}: each tile binds with exactly the strength needed to stay attached, and that there are no glue mismatches between tiles in any produced assembly. Our construction is reminiscent of the studies of \emph{intrinsic universality} of cellular automata by Ollinger and others, in the sense that our simulation of a tile system $T$ by a tile system $U$ represents each tile in an assembly produced by $T$ by a $c \times c$ block of tiles in $U$, where $c$ is a constant depending on $T$ but not on the size of the assembly $T$ produces (which may in fact be infinite). Also, our construction improves on earlier simulations of tile assembly systems by other tile assembly systems (in particular, those of Soloveichik and Winfree, and of Demaine et al.) in that we simulate the actual process of self-assembly, not just the end result, as in Soloveichik and Winfree's construction, and we do not discriminate against infinite structures. Both previous results simulate only temperature 1 systems, whereas our construction simulates tile assembly systems operating at temperature 2