161 research outputs found
Natural Language Tutoring and the Novice Programmer
For beginning programmers, inadequate problem solving and planning skills are among the most salient of their weaknesses. Novices, by definition, lack much of the tacit knowledge that underlies effective programming. This dissertation examines the efficacy of natural language tutoring (NLT) to foster acquisition of this tacit knowledge. Coached Program Planning (CPP) is proposed as a solution to the problem of teaching the tacit knowledge of programming. The general aim is to cultivate the development of such knowledge by eliciting and scaffolding the problem solving and planning activities that novices are known to underestimate or bypass altogether. ProPL (pro-PELL), a dialogue-based intelligent tutoring system based on CPP, is also described. In an evaluation, the primary findings were that students who received tutoring from ProPL seemed to exhibit an improved ability compose plans and displayed behaviors suggestive of thinking at greater levels of abstraction than students in a read-only control group. The major finding is that NLT appears to be effective in teaching program composition skills
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Arguement in the humanities: A knowledge based approach
In this thesis I have a threefold purpose. I will attempt: (a) to present a generic design for a tool - the Argument Support Program - which can be of use in supporting the reasoning of archaeologists (and others especially, but not exclusively, in the humanities); (b) I will present a model of argumentation and debate as the theoretical orientation within which the model is developed; and, (c) I will suggest that this approach is a natural development of several strands of research within the artificial intelligence community. A tripartite model of argument is presented in terms of arguers, the argument structure produced and the argument domain or field. This model subsumes reasoning, interpretation and argument exchange or debate. It is maintained, further, that while this model is generally applicable, specific domains have particular styles of argument. The notion of argument style is discussed in terms of the types of reasoning used. The related concept of relevance in argument is discussed in terms of the specific tokens of these types which may be used in a particular argument. It is argued that archaeology is characterized, at least in part, by the use of argument by analogy and argument from theoretical principles or models. A design for a generic program - the Argument Support Program (ASP) - based on the theoretical principles is delineated. Details of the partial implementation of the model as a constrained debater in the domain of archaeology (ASP for archaeology or ASParch) are presented. Example runs which illustrate how the characterizing features of archaeology are dealt with are also presented as are examples of the various domain and system knowledge bases needed. The application of ASPs to other domains and areas such as literary criticism, legal reasoning and Darwinian theory is discussed. In the final chapter, the achievements and inadequacies of this research are summarized, possible reasons are presented for the inadequacies in the resulting system and future directions discussed
SEPEC conference proceedings: Hypermedia and Information Reconstruction. Aerospace applications and research directions. Addendum
The papers presented at the conference on hypermedia and information reconstruction are compiled. The following subject areas are covered: hypertext, typographic man, and the notion of literacy; a knowledge base browser using hypermedia; Ai GERM - a logic programming front end for GERM; and HEAVENS system for software artifacts
Establishing knowledge and skill in a novel system-supervisory task: an application to automated mail sorting
This thesis aims to establish methods for identifying and training the knowledge and
skills of operating a novel automated system still undergoing final design and
construction. The absence of operating experience requires the characteristics of the
system to be examined so that the future tasks of supervisors can be anticipated in order
to address human factors design. This work is carried out in the context of an
'Integrated Mail Processor' (IMP)—a highly automated letter sorting machine being
developed by Royal Mail. [Continues.
Teaching machines: a means of re-evaluating and implementing training procedures.
Thesis (M.S.)--Boston University
N.B.: Page I misnumbere
Mindful documentary
Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2005.Includes bibliographical references (leaves 86-92).In the practice of documentary creation, a videographer performs an elaborate balancing act between observing the world, deciding what to record, and understanding the implications of the recorded material, all with respect to her primary goal of story construction. This thesis presents mindful documentary, a model of a videographer's cyclical process of thinking and constructing during a documentary production. The purpose of this model is to better support documentary creation through systems that assist the documentary videographer in discovering new methods of observation, ways of thinking, and novel stories while recording the world. Based on the mindful documentary model, a reflective partnership is established between the videographer and a camera with commonsense reasoning abilities during capture and organization of documentary video collections. Knowledge is solicited from the videographer at the point of capture; it is used to generate narrative or contextual shot suggestions, which provide alternative recording path ideas for the videographer. Thus, the system encourages the videographer to reflect on the story possibilities of a documentary collection during real-time capture. Qualitative results of studies with a group of videographers - including novices and experts - showed a willingness to take suggestions during documentary production and, in some cases, to alter the recording path after reflection on shot possibilities presented by the system. Moreover, suggestions often had increased influence on the recording path if they were not taken as directives but as catalysts, i.e., prompts to expand thinking about the documentary subject rather than explicit shot instructions.(cont.) Critical lessons were learned about methodology and system design for documentary production. As a documentary is built, evidence of what the videographer has learned is represented in the documentary. The model, methodology, and system presented in this thesis provide a basis for understanding how videographers think during documentary construction and how machines with commonsense reasoning resources can serve as creative storytelling partners.by Barbara A. Barry.Ph.D
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Modeling Narrative Discourse
This thesis describes new approaches to the formal modeling of narrative discourse. Although narratives of all kinds are ubiquitous in daily life, contemporary text processing techniques typically do not leverage the aspects that separate narrative from expository discourse. We describe two approaches to the problem. The first approach considers the conversational networks to be found in literary fiction as a key aspect of discourse coherence; by isolating and analyzing these networks, we are able to comment on longstanding literary theories. The second approach proposes a new set of discourse relations that are specific to narrative. By focusing on certain key aspects, such as agentive characters, goals, plans, beliefs, and time, these relations represent a theory-of-mind interpretation of a text. We show that these discourse relations are expressive, formal, robust, and through the use of a software system, amenable to corpus collection projects through the use of trained annotators. We have procured and released a collection of over 100 encodings, covering a set of fables as well as longer texts including literary fiction and epic poetry. We are able to inferentially find similarities and analogies between encoded stories based on the proposed relations, and an evaluation of this technique shows that human raters prefer such a measure of similarity to a more traditional one based on the semantic distances between story propositions
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A comparison of the effects of reading interventions on the word identification and oral reading fluency of 5th grade students with learning disabilities
textThe purpose of this study was to examine and compare the effectiveness of teacher-directed instruction (i.e., teacher-directed instruction without using an iPad, TDI) and iPad-assisted instruction (IAI) on the word identification and oral reading fluency of elementary school students with reading learning disabilities (RLD), who have reading goals on their individual education plans (IEPs). Four 5th grade students with RLD participated in the study. An alternating treatments design combined with a multiple baseline design across the participants was applied. Visual analysis indicated that a moderate experimental effect from TDI and IAI on word identification and oral reading fluency was present for all four students when the baseline and intervention phases were compared. Specifically, regarding word identification, the percentage of non-overlapping data (PND) and non-overlap of all pairs (NAP) indicated that TDI and IAI are effective reading instructional procedures according to single-case research design standards. The finding was also supported by a Tau-U analysis that suggests both TDI and IAI demonstrated a large effect on improving word identification. Regarding oral reading fluency, however, the results were mixed; Tau-U indicates there was a large and significant effect from TDI and IAI for three of the four students in terms of increasing their oral reading fluency. Although data analysis indicates that TDI and IAI demonstrate moderate evidence in improving word identification and oral reading fluency, there was no clear differentiation found between the two treatments. A social validity questionnaire that examined student perspectives about intervention showed the students' positive views on their intervention experience and revealed their perspectives that intervention was helpful in building their reading skills. The second social validity questionnaire that asked the students about their reading perspectives indicated that the intervention increased their positive attitudes toward their reading (e.g., reading is a source of excitement and interest, reading is fun).Special Educatio
Development and Specification of Virtual Environments
This thesis concerns the issues involved in the development of virtual environments (VEs). VEs are more than virtual reality. We identify four main characteristics of them: graphical interaction, multimodality, interface agents, and multi-user. These characteristics are illustrated with an overview of different classes of VE-like applications, and a number of state-of-the-art VEs. To further define the topic of research, we propose a general framework for VE systems development, in which we identify five major classes of development tools: methodology, guidelines, design specification, analysis, and development environments. Of each, we give an overview of existing best practices
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