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286 results on '"Tichy, Walter F."'

1. At your Command! An Empirical Study on How LaypersonsTeach Robots New Functions

Author

Weigelt, Sebastian, Steurer, Vanessa, and Tichy, Walter F.

Subjects
Computer Science - Computation and Language, Computer Science - Information Retrieval
Abstract

Even though intelligent systems such as Siri or Google Assistant are enjoyable (and useful) dialog partners, users can only access predefined functionality. Enabling end-users to extend the functionality of intelligent systems will be the next big thing. To promote research in this area we carried out an empirical study on how laypersons teach robots new functions by means of natural language instructions. The result is a labeled corpus consisting of 3168 submissions given by 870 subjects. The analysis of the dataset revealed that many participants used certain wordings to express their wish to teach new functionality; two corresponding trigrams are among the most frequent. On the contrary, more than one third (36.93%) did not verbalize the teaching intent at all. We labeled the semantic constituents in the utterances: declaration (including the name of the function) and intermediate steps. The full corpus is publicly available: http://dx.doi.org/10.21227/zecn-6c61

Published
2020

2. Natural Language Data Queries on Multiple Heterogenous Data Sources

Author

Wachtel, Alexander, Fuchß, Dominik, Przybylla, Matthias, Tichy, Walter F., Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Malizia, Alessio, editor, Valtolina, Stefano, editor, Morch, Anders, editor, Serrano, Alan, editor, and Stratton, Andrew, editor

Published
2019
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3. Autotuning and Self-Adaptability in Concurrency Libraries

Author

Karcher, Thomas, Guckes, Christopher, and Tichy, Walter F.

Subjects
Computer Science - Software Engineering
Abstract

Autotuning is an established technique for optimizing the performance of parallel applications. However, programmers must prepare applications for autotuning, which is tedious and error prone coding work. We demonstrate how applications become ready for autotuning with few or no modifications by extending Threading Building Blocks (TBB), a library for parallel programming, with autotuning. The extended TBB library optimizes all application-independent tuning parameters fully automatically. We compare manual effort, autotuning overhead and performance gains on 17 examples. While some examples benefit only slightly, others speed up by 28% over standard TBB., Comment: Presented at 1st Workshop on Resource Awareness and Adaptivity in Multi-Core Computing (Racing 2014) (arXiv:1405.2281)

Published
2014

5. Predicting and Witnessing Data Races Using CSP

Author

Carril, Luis M., Tichy, Walter F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Havelund, Klaus, editor, Holzmann, Gerard, editor, and Joshi, Rajeev, editor

Published
2015
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7. Parallelizing an Index Generator for Desktop Search

Author

Meder, David J., Tichy, Walter F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Varbanescu, Ana Lucia, editor, Molnos, Anca, editor, and van Nieuwpoort, Rob, editor

Published
2012
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8. Dynamic Data Race Detection for Correlated Variables

Author

Jannesari, Ali, Westphal-Furuya, Markus, Tichy, Walter F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Xiang, Yang, editor, Cuzzocrea, Alfredo, editor, Hobbs, Michael, editor, and Zhou, Wanlei, editor

Published
2011
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9. A Language-Based Tuning Mechanism for Task and Pipeline Parallelism

Author

Otto, Frank, Schaefer, Christoph A., Dempe, Matthias, Tichy, Walter F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, D’Ambra, Pasqua, editor, Guarracino, Mario, editor, and Talia, Domenico, editor

Published
2010
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10. Atune-IL: An Instrumentation Language for Auto-tuning Parallel Applications

Author

Schaefer, Christoph A., Pankratius, Victor, Tichy, Walter F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Sips, Henk, editor, Epema, Dick, editor, and Lin, Hai-Xiang, editor

Published
2009
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11. XJava: Exploiting Parallelism with Object-Oriented Stream Programming

Author

Otto, Frank, Pankratius, Victor, Tichy, Walter F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Sips, Henk, editor, Epema, Dick, editor, and Lin, Hai-Xiang, editor

Published
2009
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13. Status of Empirical Research in Software Engineering

Author

Höfer, Andreas, Tichy, Walter F., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Basili, Victor R., editor, Rombach, Dieter, editor, Schneider, Kurt, editor, Kitchenham, Barbara, editor, Pfahl, Dietmar, editor, and Selby, Richard W., editor

Published
2007
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14. A Communication Middleware for Smart Room Environments

Author

Szeder, Gábor, Tichy, Walter F., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Schiele, Bernt, editor, Dey, Anind K., editor, Gellersen, Hans, editor, de Ruyter, Boris, editor, Tscheligi, Manfred, editor, Wichert, Reiner, editor, Aarts, Emile, editor, and Buchmann, Alejandro, editor

Published
2007
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16. Logging Kernel Events on Clusters

Author

Reuter, Jürgen, Tichy, Walter F., Goos, G., editor, Hartmanis, J., editor, van Leeuwen, J., editor, Sloot, Peter M. A., editor, Abramson, David, editor, Bogdanov, Alexander V., editor, Gorbachev, Yuriy E., editor, Dongarra, Jack J., editor, and Zomaya, Albert Y., editor

Published
2003
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17. Self-Tuning Parallelism

Author

Werner-Kytölä, Otilia, Tichy, Walter F., Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, Bubak, Marian, editor, Afsarmanesh, Hamideh, editor, Hertzberger, Bob, editor, and Williams, Roy, editor

Published
2000
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23. The parastation project

Author

Blum, Joachim M., Warschko, Thomas M., Tichy, Walter F., Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, and Böszörményi, László, editor

Published
1996
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37. Parallelizing Bzip2: a case study in multicore software engineering

Author

Pankratius, Victor, Jannesari, Ali, and Tichy, Walter F.

Subjects
Application development software, Application installation/distribution software, Bzip2 (Application development software) -- Usage, Program development software -- Usage, Parallel programming (Computer science) -- Methods, Multiple core processors
Published
2009

39. What’s the Matter? Knowledge Acquisition by Unsupervised Multi-Topic Labeling for Spoken Utterances

Author

Weigelt, Sebastian, Keim, Jan, Hey, Tobias, and Tichy, Walter F.

Subjects
Ontology Selection, Topic Modeling, DATA processing & computer science, Graph Centrality Measures, Spoken Language Interfaces, DBpedia, Semantic Annotation, Spoken Language Understanding, ddc:004, Topic Labeling, Word Sense Disambiguation, Unsupervised Machine Learning, Wikipedia, Natural Language Processing
Abstract

Systems such as Alexa, Cortana, and Siri app ear rather smart. However, they only react to predefined wordings and do not actually grasp the user's intent. To overcome this limitation, a system must understand the topics the user is talking about. Therefore, we apply unsupervised multi-topic labeling to spoken utterances. Although topic labeling is a well-studied task on textual documents, its potential for spoken input is almost unexplored. Our approach for topic labeling is tailored to spoken utterances; it copes with short and ungrammatical input. The approach is two-tiered. First, we disambiguate word senses. We utilize Wikipedia as pre-labeled corpus to train a naïve-bayes classifier. Second, we build topic graphs based on DBpedia relations. We use two strategies to determine central terms in the graphs, i.e. the shared topics. One fo cuses on the dominant senses in the utterance and the other covers as many distinct senses as possible. Our approach creates multiple distinct topics per utterance and ranks results. The evaluation shows that the approach is feasible; the word sense disambiguation achieves a recall of 0.799. Concerning topic labeling, in a user study subjects assessed that in 90.9% of the cases at least one proposed topic label among the first four is a good fit. With regard to precision, the subjects judged that 77.2% of the top ranked labels are a good fit or good but somewhat too broad (Fleiss' kappa κ = 0.27). We illustrate areas of application of topic labeling in the field of programming in spoken language. With topic labeling applied to the spoken input as well as ontologies that model the situational context we are able to select the most appropriate ontologies with an F1-score of 0.907.

Published
2020

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