Takashi Ogata

Bio: Takashi Ogata is an academic researcher from Iwate Prefectural University. The author has contributed to research in topics: Narrative & Conceptual dictionary. The author has an hindex of 12, co-authored 73 publications receiving 379 citations.

Computational and Cognitive Approaches to Narratology from the Perspective of Narrative Generation

Abstract: This chapter surveys and discusses interdisciplinary approaches to primarily Artificial Intelligence (AI)based computational narrative or story generation systems by way of introducing cognitive science, and narratology and related literary theories. The first part of this chapter provides a general description (from the perspective of the research framework of the author) and the second part presents processes, theories, designs, and implementations of narrative generation by the author. In particular, the first part includes an overview of narratology and the relevant literary theories, computational and cognitive theories and techniques related to narratology and narrative generation, and narrative generation systems. The second part presents, in relative detail, components that constitute a systematic study for narrative generation by the author and an integrated narrative generation system of all of the previous attempts.

A Story Generation System Based on Propp Theory: As a Mechanism in an Integrated Narrative Generation System

Abstract: We show the overall picture of Propp theory and the current state of system development. Specifically, we propose a story generation mechanism based on a Propp-based story grammar and propose an entertainment system KOSERUBE as the application. We aim at the integration of Propp theory into a story generation mechanism, another integration of Propp-based story generation system into a framework of integrated narrative generation system, and the pursuit of new types of contents with narrative generation functions.

Building Conceptual Dictionaries for an Integrated Narrative Generation System

Abstract: Abstra ct Integrated Narrative Generation System (INGS) is a framework for integrating our previous researches on narrative generation. INGS integrates various narrative generation modules into an organic architecture. This paper presents a verb conceptual dictionary and a noun conceptual dictionary to be used in INGS. Each of the dictionaries has a conceptual hierarchy with single inheritance by is-a relations. A terminal concept in the verb conceptual dictionary describes one or more case frame(s), the constraints of the main elements and a sentence pattern. The basic description of each terminal concept in the noun conceptual dictionary associates the concept to the other noun concept. The purpose of the study is not developing general conceptual dictionaries, but building them as a mechanism in narrative generation, especially in INGS. Actually, we have combined the two developed conceptual dictionaries with INGS. In this paper, we will present the basic mechanisms based on the cooperation of two types of conceptual dictionary through an implemented narrative generation system, INGS.

A consideration of the elements for narrative generation and a trial of integrated narrative generation system

Abstract: A goal of this research is to integrate various elements of narrative generation and develop an “integrated narrative generation system” Previously, we have been developing various prototyping elements under top-down designing And we connected several elements in a pilot version of integrated narrative generation system In this paper, first, we introduce elements and a pilot integrated system And we consider on the expansion of the system mainly framework of narrative structural techniques and generation control mechanism

The Value of Narrativity in the Representation of Reality

Abstract: To raise the question of the nature of narrative is to invite reflection on the very nature of culture and, possibly, even on the nature of humanity itself. So natural is the impulse to narrate, so inevitable is the form of narrative for any report of the way things really happened, that narrativity could appear problematical only in a culture in which it was absent-absent or, as in some domains of contemporary Western intellectual and artistic culture, programmatically refused. As a panglobal fact of culture, narrative and narration are less problems than simply data. As the late (and already profoundly missed) Roland Barthes remarked, narrative "is simply there like life itself. . international, transhistorical, transcultural."' Far from being a problem, then, narrative might well be considered a solution to a problem of general human concern, namely, the problem of how to translate knowing into telling,2 the problem of fashioning human experience into a form assimilable to structures of meaning that are generally human rather than culture-specific. We may not be able fully to comprehend specific thought patterns of another culture, but we have relatively less difficulty understanding a story coming from another culture, however exotic that

Cognitive Informatics and Cognitive Computing in Year 10 and Beyond

Abstract: Cognitive Informatics CI is a transdisciplinary enquiry of computer science, information sciences, cognitive science, and intelligence science that investigates into the internal information processing mechanisms and processes of the brain and natural intelligence, as well as their engineering applications in cognitive computing. The latest advances in CI leads to the establishment of cognitive computing theories and methodologies, as well as the development of Cognitive Computers CogC that perceive, infer, and learn. This paper reports a set of nine position statements presented in the plenary panel of IEEE ICCI*CC'11 on Cognitive Informatics in Year 10 and Beyond contributed from invited panelists who are part of the world's renowned researchers and scholars in the field of cognitive informatics and cognitive computing.

Trust Management Model based on Fuzzy Approach for Ubiquitous Computing

Abstract: The current state of ubiquitous computing has been greatly influenced by emerging networking developments like Internet of Things (IoT), Future Internet etc. Adequate trust management is crucial to provide security. The entities involved in communication must be trusted for specific purposes depending on their role. Using trust model, devices can run trust computations and guide their behaviors. To this effect, a method is needed to evaluate the level of trust between devices. Trust models investigated so far discusses that devices face problems when communicating as transforming trust relationships from real to virtual world requires the negotiation of trust based on the security properties of devices. However, these models are developed in limited devices. This paper proposes a distributed trust model for device-to-device communication in ubiquitous computing. Mathematical model based on fuzzy rules to establish trust is presented. Fuzzy simulation of the model is presented to validate the findings. Simulation results show that proposed model calculates fuzzy trust values reliably.

Propp's Morphology of the Folk Tale as a Grammar for Generation

Abstract: The semi-formal analysis of Russian folk tales carried out by Vladimir Propp has often been used as theoretical background for the automated generation of stories. Its rigour and its exhaustive description of the constituent elements of Russian folk tales, and the enumeration of the patterns they follow, have acted as inspiration for several story generation systems, both sequential and interactive. Yet most of these efforts have attempted to generalize Propp’s account to types of stories beyond the corpus that it arose from. In the process, a number of the valuable intuitions present in the original work are lost. The present paper revisits Propp’s morphology to build a system that generates instances of Russian folk tales. Propp’s view of the folk tale as a rigid sequence of character functions is employed as a plot driver. Unification is used to incrementally build a conceptual representation of discourse by adding to an ongoing draft story actions that instantiate the character functions. Story actions are defined by pre and post conditions on the state of the plot to account for the causal relations crucial to narrative. The potential of the resulting system for providing a generic story generation system is discussed and possible lines of future work are discussed.