Do You Feel Me?: Learning Language from Humans with Robot Emotional Displays

In working towards accomplishing a human-level acquisition and understanding of language, a robot must meet two requirements: the ability to learn words from interactions with its physical environment, and the ability to learn language from people in settings for language use, such as spoken dialogue. The second requirement poses a problem: If a robot is capable of asking a human teacher well-formed questions, it will lead the teacher to provide responses that are too advanced for a robot, which requires simple inputs and feedback to build word-level comprehension. In a live interactive study, we tested the hypothesis that emotional displays are a viable solution to this problem of how to communicate without relying on language the robot doesn\u27t--indeed, cannot--actually know. Emotional displays can relate the robot\u27s state of understanding to its human teacher, and are developmentally appropriate for the most common language acquisition setting: an adult interacting with a child. For our study, we programmed a robot to independently explore the world and elicit relevant word references and feedback from the participants who are confronted with two robot settings: a setting in which the robot displays emotions, and a second setting where the robot focuses on the task without displaying emotions, which also tests if emotional displays lead a participant to make incorrect assumptions regarding the robot\u27s understanding. Analyzing the results from the surveys and the Grounded Semantics classifiers, we discovered that the use of emotional displays increases the number of inputs provided to the robot, an effect that\u27s modulated by the ratio of positive to negative emotions that were displayed

Names of fungal species with the same epithet applied to different morphs: how to treat them

The abolition of the separate naming of different morphs of the same fungal species in 2011 will inevitably result in many name changes in some genera. The working practices commended here are intended to minimize one category of these changes, that which can arise as a consequence of an author using the epithet of an asexual morph when describing the sexual morph of the same species. We consider that name proposed for the sexual morph in such cases should be treated as a formal error for a new combination and not as a new species, and so be corrected. This is interpreted as applying even where the author indicated that a new species was being described and designated a type. We argue that those formalities were a result of the requirements of the rules then in force, as the author recognized that a morph of a named species was being described, and not a new hitherto unnamed species was being reported - but was barred from making a new combination so used the same epithet for the new morph name instead. Where a type with the sexual morph was designated for the sexual morph, under this interpretation that no longer has nomenclatural status, the type being that of the basionym. The material for the sexual morph indicated as a type, would be available for designation as an epitype, though a modern sequenced sample with both sexual and asexual morphs would be more informative as an epitype in many cases. A proposal to regularize the working practice commended here, and also the converse situation where the sexual morph typified name is the earlier, will be made to the 2017 Shenzhen Congress

Determination And Compatibility Of Putatively Hypovirulent And Virulent Isolates Of Cryphonectria Parasitica Collected From The Great Smoky Mountains National Park

A two-year study was conducted to collect and identify hypovirulent isolates of the chestnut blight fungus (Cryphonectria parasitica) from American chestnut trees located in the Great Smoky Mountains National Park (GRSM). During the survey, 339 isolates were obtained, 54 of which had abnormal morphological characteristics in culture and 3 of these contained dsRNA. Analysis of vegetative compatibility divided all 339 isolates into 34 distinct groups, 16 of which only contained a single isolate. A total of 19 isolates (compared to 3 controls) containing abnormal cultural morphologies or dsRNA were randomly selected for use in a field trial containing 44 natural occurring healthy American chestnut trees in the Nantahala National Forest, North Carolina. Following artificial inoculation during spring of 2007, data on canker radial growth and stromata production were obtained monthly for six months. Results from the field trial indicated that 5 of the isolates, 3 of which contained dsRNA, were potentially hypovirulent based on appearance and canker growth rates compared to the controls. Data from the field trial and VC pairings indicated that one isolate, 236-1C, has potential for use as a biological control agent for the chestnut blight fungus in the GRSM, but is limited to select VC groups. Since numerous VC groups occur in the park, additional hypovirulent isolates must be identified which form anastomosis with the majority of the important groups before large scale control can succeed

Predicting Human Interpretations of Affect and Valence in a Social Robot

In this paper we seek to understand how people interpret a social robot’s performance of an emotion, what we term ‘affective display,’ and the positive or negative valence of that affect. To this end, we tasked annotators with observing the Anki Cozmo robot perform its over 900 pre-scripted behaviors and labeling those behaviors with 16 possible affective display labels (e.g., interest, boredom, disgust, etc.). In our first experiment, we trained a neural network to predict annotated labels given multimodal information about the robot’s movement, face, and audio. The results suggest that pairing affects to predict the valence between them is more informative, which we confirmed in a second experiment. Both experiments show that certain modalities are more useful for predicting displays of affect and valence. For our final experiment, we generated novel robot behaviors and tasked human raters with assigning scores to valence pairs instead of applying labels, then compared our model’s predictions of valence between the affective pairs and compared the results to the human ratings. We conclude that some modalities have information that can be contributory or inhibitive when considered in conjunction with other modalities, depending on the emotional valence pair being considered

Web based lecture technologies: blurring the boundaries between face to face and distance learning

Web based lecture technologies (WBLT) have gained popularity amongst universities in Australia as a tool for delivering lecture recordings to students in close to real time. This paper reports on a selection of results from a larger research project investigating the impact of WBLT on teaching and learning. Results show that while staff see the advantages for external students, they question the extent to which these advantages apply to internal students. In contrast both cohorts of students were positive about the benefits of the technologies for their learning and they adopted similar strategies for their use. With the help of other technologies, some external students and staff even found WBLT useful for fostering communication between internal and external students. As such, while the traditional boundary between internal and external students seems to remain for some staff, students seem to find the boundary much less clear

The Shape of Citizenship: Extraordinary Common Meaning and Constitutional Legitimacy

The United States, it is widely believed, is at a moment of constitutional crisis. At no time since the Civil War era has it seemed more likely that what James Madison called the “experiment entrusted to the hands of the American people”—the experiment in democratic constitutional self-governance—will fail. This article argues that one reason for this state of affairs is that the ‘people’ sense that they are no longer active participants in the experiment. While the historical etiology of this crisis is complex, and the forces involved not confined to the US, this article focuses on the crisis in the legitimacy of the Federal Judiciary—and the role that current orthodoxies in constitutional interpretation have played in fomenting that crisis. The immediate critical target of this article is contemporary jurisprudential uses of what is called “public meaning originalism,” specifically, and ‘textualist originalism’ more broadly, as a theory for the interpretation of those clauses in the US Constitution that refer to fundamental rights and freedoms. This concern with “textualism,” however, is primarily diagnostic. For, despite its relative unpopularity among most contemporary legal theorists, the application of “public meaning originalism” by the US Supreme Court is perfectly consistent with the dominant legal theoretical approach in the English-speaking world. The extremity of the Court’s recent ‘textualist’ jurisprudence provides an excellent illustration, or reminder, of the dangers of legal positivist jurisprudence. In arguing against textualist originalism, this article defends a version of the anti-positivist distinction between legal rules and legal principles, most famously associated with the work of Ronald Dworkin. It argues, however, that this distinction cannot be captured by understanding constitutional principles in terms of moral principles, as Dworkin suggests. Instead, constitutional principles must be understood as deliberative principles of political association and communal self-determination. The primary subject of this article, then, is the character of fundamental constitutional law; our hope is that the current crises in democratic constitutional legitimacy can help make salient certain aspects of the relation between popular sovereignty and constitutional legitimacy that are harder to discern in less fractured political climates. This article begins, in Part One, with a consideration of the Roberts Court’s recent jurisprudence, focusing on three landmark opinions issued in June of 2022: Dobbs v Jackson Women’s Health Organization, Kennedy v. Bremerton School Dist. and West Virginia v EPA. The point of revisiting this recent history will not be—or will not only be—to decry these rulings as anti-democratic and constitutionally ill-founded. The point, rather, will be 1) to see these rulings as consolidations of the Court’s newly asserted constitutional authority, and 2) show how contemporary positivist constitutional theory has helped prepare the way for the Court’s manipulation of the constitutional order. Part Two begins to elaborate an anti-positivist alternative both to legal positivism and to natural law legal theory. In agreement with traditional natural law theorists, it is argued that the distinction between illegitimate and legitimate expressions of political authority depends on the degree to which a system of authority is directed toward a common good. In disagreement with those theorists, however, this article contends that the common good of a political community is determined by the communal deliberative activity of a political community, and that the deliberative determination of a common good is the normative foundation of that community. Part Three focuses on the First Amendment of the US Constitution with two aims in mind. First, to illustrate the account of constitutional law here advocated, it offers a reading of the First Amendment as an attempt to put into words a shared understanding among the ratifiers of the Bill of Rights of what this article calls ‘the shape of citizenship’ in our constitutional democracy. Second, it shows how the Court’s recent opinions have radically subverted the last vestiges of this original connection between constitutional rights and the foundational principles of constitutional self-government. In Dobbs v Jackson, in particular, the Court asserts an understanding of constitutional rights as merely a particular structural variant of positive law, and in so doing effectively makes the legal order a sovereign power over the people, rather than an expression of and vehicle for their common self-determination

Whither tobacco product regulation?

Despite decades of industry innovation and regulatory efforts, the harmfulness of conventional cigarettes has not changed. There are several pitfalls in this area, including the long time lag before health impacts of product regulatory changes become apparent, the danger of consumers deriving false reassurance of lesser harm in the interim period, the lack of relevant expertise and the lack of an internationally agreed and evidencebased strategic approach. Articles 9 and 10 of the Framework Convention on Tobacco Control provide the potential for such a global strategy, and knowledge and research has increased significantly over recent years. However, there are huge opportunity costs in implementing product disclosure and regulatory strategies: most national regulators have very limited human and financial resources, which should be focused on other evidence-based tobacco control interventions. We believe therefore that it is now time to abandon the notion of safe or safer cigarettes while moving consumers towards cleaner nicotine products as soon as possible. In parallel to this, we recommend a number of other strategies be implemented including: reducing the appeal of all tobacco products, forbidding new tobacco products or brand variants being marketed without evidence of reduced harm, appeal or addictiveness, and developing a tobacco industry resourced, but industry independent, Framework Convention on Tobacco Control global repository to assist national regulators in understanding and regulating the products on their markets