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Compressive Spectral Clustering — Error Analysis
Hunter, Blake A (University of California, Davis) | Strohmer, Thomas (University of California, Davis)
Compressive spectral clustering combines the distance preserving measurements of compressed sensing with the power of spectral clustering. Our analysis provides rigorous bounds on how small errors in the affinity matrix can affect the spectral coordinates and clusterability. This work generalizes the current perturbation results of two-class spectral clustering to incorporate multiclass clustering using k eigenvectors.
A Turing Game for Commonsense Knowledge Extraction
Mancilla-Caceres, Juan Fernando (University of Illinois at Urbana-Champaign) | Amir, Eyal (University of Illinois at Urbana-Champaign)
Collecting commonsense from text with the aid of a game can reduce the cost and effort of creating large knowledge bases. In this paper, we design, implement, and evaluate an online game that classifies, with input from players, text extracted from the Web as commonsense knowledge, domain-specific knowledge or nonsense. We also create a knowledge base that includes commonsense facts in natural language and information on how common a given fact is. The game is currently available for play on the Web and on Facebook, and under constant improvement. The creation of a continuous scale to classify commonsense helped during evaluation of the data by clearly identifying which knowledge is reliable and which needs further qualification. When comparing our results to other similar knowledge acquisition systems, our Turing Game performs better with respect to coverage,redundancy, and reliability of the commonsense acquired.
Towards a Storytelling Humanoid Robot
Gelin, Rodolphe (Aldebaran) | d' (LIMSI-CNRS) | Alessandro, Christophe (Telecom ParisTech) | Le, Quoc Anh (Acapela) | Deroo, Olivier (LIMSI-CNRS) | Doukhan, David (LIMSI-CNRS) | Martin, Jean-Claude (Telecom ParisTech) | Pelachaud, Catherine (LIMSI-CNRS) | Rilliard, Albert (LIMSI-CNRS) | Rosset, Sophie
The useful This paper reports on the ongoing work done in the information is obviously multilevel. In this work we are GVLEX project. The aim of this multidisciplinary project not willing to design complete analysis for each level of is to design and test a storytelling humanoid robot. Ideally, interest but rather to design a multilevel analysis able to the robot would be able to process automatically a given point out the interesting parts of the tale. Based on the tale or short story, and to play it for a children audience.
Discourse Structure Effects on the Global Coherence of Texts
Sagi, Eyal (Northwestern University)
Many theories of discourse structure rely on the idea that the segments comprising the discourse are linked through inferred relations such as causality and temporal contiguity. These theories suggest that the resulting discourse is represented hierarchically. Two experiments examine some of the implications of these hierarchical structures on the perceived coherence of texts. Experiment 1 shows that texts with more levels to their hierarchical structure are judged to be more coherent. Experiment 2 demonstrates that these effects are sensitive to the genre of the text. Specifically, narratives seem to be more affected by manipulation of the discourse structure than procedural texts.
A Japanese Natural Language Toolset Implementation for ConceptNet
Roberts, Tyson Michael (Hokkaido University) | Rzepka, Rafal (Hokkaido University) | Araki, Kenji (Hokkaido University)
In recent years, ConceptNet has gained notoriety in the Natural Language Processing (NLP) as a textual commonsense knowledge base (CSKB) for its utilization of k-lines (Liu and Sing, 2004a) which make it suitable for making practical inferences on corpora (Liu and Sing, 2004b). However, until now, ConceptNet has lacked support for many non-English languages. To alleviate this problem, we have implemented a software toolset for the Japanese Language that allows Japanese to be used with ConceptNet's concept inference system. This paper discusses the implementation of this toolset and a possible path for the development of toolsets in other languages with similar features.
Preface: Complex Adaptive Systems
Hadzikadic, Mirsad (University of North Carolina at Charlotte) | Carmichael, Ted (University of North Carolina at Charlotte)
Complex systems are found all around us. Companies, societies, fields who study these complex systems using the tools and markets, and humans rarely stay in a stable, predictable techniques of complex adaptive systems. We will explore state for long. Yet all these systems are characterized phenomena related to resilience, robustness, and evolvability by the notable persistence of some key attributes across various disciplines as one avenue towards exposing which maintain their identities, even as their constituent common dynamics that are found in these disparate domains. In the past, knowledge gained in each domain about these - What is it about these systems that define their identity?
Explanation of Relevance Judgement Discrepancy with Quantum Interference
Wang, Jun (Robert Gordon University) | Song, Dawei (Robert Gordon University) | Zhang, Peng (Robert Gordon University) | Hou, Yuexian (Tianjin University) | Bruza, Peter (Queensland University of Techonology )
A key concept in many Information Retrieval (IR) tasks, e.g. document indexing, query language modelling, aspect and diversity retrieval, is the relevance measurement of topics, i.e. to what extent an information object (e.g. a document or a query) is about the topics. This paper investigates the interference of relevance measurement of a topic caused by another topic. For example, consider that two user groups are required to judge whether a topic q is relevant to a document d, and q is presented together with another topic (referred to as a companion topic). If different companion topics are used for different groups, interestingly different relevance probabilities of q given d can be reached. In this paper, we present empirical results showing that the relevance of a topic to a document is greatly affected by the companion topic’s relevance to the same document, and the extent of the impact differs with respect to different companion topics. We further analyse the phenomenon from classical and quantum-like interference perspectives, and connect the phenomenon to nonreality and contextuality in quantum mechanics. We demonstrate that quantum like model fits in the empirical data, could be potentially used for predicting the relevance when interference exists.
SenticNet: A Publicly Available Semantic Resource for Opinion Mining
Cambria, Erik (University of Stirling) | Speer, Robyn (Massachusetts Institute of Technology) | Havasi, Catherine (Massachusetts Institute of Technology) | Hussain, Amir (University of Stirling)
Today millions of web-users express their opinions about many topics through blogs, wikis, fora, chats and social networks. For sectors such as e-commerce and e-tourism, it is very useful to automatically analyze the huge amount of social information available on the Web, but the extremely unstructured nature of these contents makes it a difficult task. SenticNet is a publicly available resource for opinion mining built exploiting AI and Semantic Web techniques. It uses dimensionality reduction to infer the polarity of common sense concepts and hence provide a public resource for mining opinions from natural language text at a semantic, rather than just syntactic, level.
A Cultural Computing Approach to Interactive Narrative: The Case of the Living Liberia Fabric
Harrell, D. Fox (Massachusetts Institute of Technology) | Gonzalez, Chris (Georgia Institute of Technology) | Blumenthal, Hank (Georgia Institute of Technology) | Chenzira, Ayoka (Georgia Institute of Technology) | Powell, Natasha (Georgia Institute of Technology) | Piazza, Nathan (Georgia Institute of Technology) | Best, Michael (Georgia Institute of Technology)
This position paper presents an approach to computational narrative based in cognitive linguistics and sociolinguistics accounts of conceptual blending, metaphor, and narrative, multimedia semantics, human-centered interface design, and digital media art practice. In particular, as a case study, we describe the Living Liberia Fabric, an AI-based interactive narrative system developed in affiliation with the Truth and Reconciliation Commission (TRC) of Liberia to memorialize a fourteen-year civil war. The Living Liberia Fabric project is led by Fox Harrell and executed in the Imagination, Computation, and Expression (ICE) Laboratory at Georgia Tech. The system exemplifies a cultural computing approach (grounding computing practices in a wider range of specific cultural traditions and values than those that are privileged in computer science).
Framework of Communication Activation Robot Participating in Multiparty Conversation
Matsuyama, Yoichi (Waseda University) | Taniyama, Hikaru (Waseda University) | Fujie, Shinya (Waseda University) | Kobayashi, Tetsunori (Waseda University)
We propose a framework for a robot to participate in and activate multiparty conversation. In multiparty conversation, the robot should select its behavior based on both linguistic information and participation structure. In this paper, we focus on multiparty conversation game "Nandoku," which is often played in elderly care facilities. The robot acts as one of the participants, and tries to promote the communication activeness. The framework handles the dialogue situation from three aspects: multiparty conversation, game progress and communication activation, and selects the most effective robot's behavior according to these three aspects.