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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IT, EMM | 2024-05-30 15:35 |
Chiba | Chiba University (Nishi-Chiba Campus) | On the Complexity of Codewords on Fixed-to-Fixed Length Source Coding Mitsuharu Arimura, Mitsugu Iwamoto (UEC) |
(To be available after the conference date) [more] | |
| EA | 2023-05-25 14:25 |
Online | Online | Improved SPICE Modeling of Vacuum Tubes for Low Plate Voltage Mitsuharu Arimura (Shonan Inst. Tech.)  EA2023-2 |
We have measured the characteristics of vacuum tubes for plate voltages as low as 20-30V and fitted to a mathematical mo... [more] | EA2023-2 pp.9-14 |
| RCC, ISEC, IT, WBS | 2023-03-14 14:15 |
Yamaguchi | (Primary: On-site, Secondary: Online) |
Construction of Grammar-Based Codes Using the LZ78 Code and Its Variants Mitsuharu Arimura (Shonan Inst. Tech.) IT2022-103 ISEC2022-82 WBS2022-100 RCC2022-100 |
It is shown by Kieffer and Yang that Lempel-Ziv78 (LZ78) method can be implemented as a variation of grammar-based code.... [more] | IT2022-103 ISEC2022-82 WBS2022-100 RCC2022-100 pp.224-229 |
| EA, ASJ-H | 2022-08-04 16:30 |
Miyagi | (Primary: On-site, Secondary: Online) |
SPICE Modeling of Vacuum Tubes for Low Plate Voltage
-- Comparison of Characteristics for Triode Connection of Pentodes and Triodes -- Mitsuharu Arimura (Shonan Inst. Tech.) EA2022-33 |
We measured the Ep-Ip characteristics of vacuum tubes and created SPICE models for low plate voltages (about 10V to 30V)... [more] | EA2022-33 pp.26-31 |
| IT | 2022-07-21 14:55 |
Okayama | Okayama University of Science (Primary: On-site, Secondary: Online) |
A Data Compression Method Where The Codeword Is a Computer Program Generating The Data Mitsuharu Arimura (Shonan Inst. Tech.) IT2022-19 |
The Kolmogorov complexity of a string is defined as the shortest length of the program on a Turing machine used to repre... [more] | IT2022-19 pp.18-23 |
| MSS, CAS, SIP, VLD | 2019-07-31 09:10 |
Iwate | Iwate Univ. | Modeling of a Triode Vacuum Tube on Low Plate Voltage and Constructing an LTspice Model Mitsuharu Arimura (Shonan Inst. Tech.) CAS2019-11 VLD2019-17 SIP2019-27 MSS2019-11 |
The characteristic between the plate, grid voltage and plate current is measured at low plate voltage lower than 20V, fo... [more] | CAS2019-11 VLD2019-17 SIP2019-27 MSS2019-11 pp.43-48 |
| IT, ISEC, WBS | 2019-03-07 10:55 |
Tokyo | University of Electro-Communications | A Two-Step LZY Code by Excluding the Nodes Which Will Not be Used from the Candidate Set Mitsuharu Arimnura (Shonan Inst. Tech.) IT2018-92 ISEC2018-98 WBS2018-93 |
When blocks are parsed and encoded incrementally in the LZY code, which is a variation of the LZ78 code, the newly parse... [more] | IT2018-92 ISEC2018-98 WBS2018-93 pp.103-108 |
| IT, EMM | 2018-05-17 14:25 |
Tokyo | Ookayama Campus, Tokyo Institute of Technology | A Two-Step Source Code Using the Parsing Count of LZ78 Code as the First Step Mitsuharu Arimura (Shonan Inst. Tech.), Hiroshi Nagaoka (Univ. of Electro-Communications) IT2018-2 EMM2018-2 |
The redundancy of a two-step source code has been analyzed using the shape of the parsing tree of the Lempel-Ziv-Yokoo c... [more] | IT2018-2 EMM2018-2 pp.7-12 |
| WBS, IT, ISEC | 2018-03-08 10:15 |
Tokyo | Katsusika Campas, Tokyo University of Science | Evaluation of the Worst-Case Redundancy of Strongly Universal FV Source Codes Using the Source Approximation and the Asymptotically Sufficient Statistic Mitsuharu Arimura (Shonan Inst. Tech.), Hiroshi Nagaoka (Univ. of Electro-Comm.) IT2017-106 ISEC2017-94 WBS2017-87 |
The universality of some variations of two-step lossless source codes using asymptotically sufficient statistics were pr... [more] | IT2017-106 ISEC2017-94 WBS2017-87 pp.19-24 |
| IT, EMM | 2016-05-20 10:40 |
Hokkaido | Otaru Economic Center | A Grammar-Based Data Compression Algorithm Using Chomsky Normal Form of Context Free Grammar Mitsuharu Arimura (Shonan Inst. Tech.) IT2016-12 EMM2016-12 |
This paper proposes a new class of grammar-based lossless source code. For the simplicity, a Semi-Chomsky Normal Form (s... [more] | IT2016-12 EMM2016-12 pp.69-74 |
| IT, EMM | 2016-05-20 11:05 |
Hokkaido | Otaru Economic Center | Construction of A Two-Step Universal VV Code Using a Sufficient Statistic Extracted from a VF Code Mitsuharu Arimura (Shonan Inst. Tech.), Hiroshi Nagaoka (Univ. of Electro-Communications) IT2016-13 EMM2016-13 |
In this paper, some theorems which give relationships between a sufficient statistic and the universality of a VV source... [more] | IT2016-13 EMM2016-13 pp.75-80 |
| IT | 2015-07-13 11:15 |
Tokyo | Tokyo Institute of Technology | An Improvement on the Almost Sure Convergence Coding Theorems of One-shot and Multi-shot Tunstall Codes Mitsuharu Arimura (Shonan Inst. Tech.) IT2015-20 |
Almost sure convergence coding theorem have been proved for one-shot and multi-shot Tunstall codes. In the theorems, it ... [more] | IT2015-20 pp.17-22 |
| ISEC, IT, WBS | 2014-03-10 10:35 |
Aichi | Nagoya Univ., Higashiyama Campus | Maximum Redundancy of Lossless Data Compression via Substring Enumeration with a Finite Alphabet Ken-ichi Iwata (Univ. of Fukui), Mitsuharu Arimura (Shonan Inst. of Tech.) IT2013-55 ISEC2013-84 WBS2013-44 |
(To be available after the conference date) [more] | IT2013-55 ISEC2013-84 WBS2013-44 pp.7-12 |
| IT | 2013-05-24 15:10 |
Fukui | Hotel Matuya Sensen at Awara-onsen, Fukui Pref. | On the Existence Condition of a VF Code for an Infinite-Alphabet Source Mitsuharu Arimura (Shonan Inst. of Tech.), Ken-ichi Iwata (Fukui Univ.) IT2013-9 |
In this paper, the performance of a variable-to-fixed length code (VF code) for a general source with countably infin... [more] |
IT2013-9 pp.41-46 |
| IT, ISEC, WBS | 2013-03-07 13:40 |
Osaka | Kwansei Gakuin Univ., Osaka-Umeda Campus | Maximum Redundancy of Lossless Data Compression via Substring Enumeration for Markov Sources Ken-ichi Iwata (Univ. of Fukui), Mitsuharu Arimura (Shonan Inst. Tech.), Yuki Shima (Univ. of Fukui) IT2012-76 ISEC2012-94 WBS2012-62 |
Dub\'{e} and Beaudoin proposed a technique of lossless data compression called compression via substring enumeration (CS... [more] | IT2012-76 ISEC2012-94 WBS2012-62 pp.95-100 |
| IT | 2013-01-21 17:30 |
Tokyo | Univ. of Electro-Communications | On the FF Code with the Optimality on both the Redundancy and the Coding Rate Mitsuharu Arimura (Shonan Inst. Tech.), Hiroki Koga (Tsukuba Univ.), Ken-ichi Iwata (Fukui Univ.) IT2012-61 |
[more] | IT2012-61 pp.71-76 |
| IT | 2012-05-25 14:25 |
Fukuoka | On the relationship between the redundancy and the coding rate of FF codes Mitsuharu Arimura (Shonan Inst. Tech.), Hiroki Koga (Tsukuba Univ.), Ken-ichi Iwata (Fukui Univ.) IT2012-2 |
Two kinds of optimality of the fixed-to-fixed length (FF) codes for a general source are studied. Han showed that the op... [more] | IT2012-2 pp.7-12 |
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| IT | 2011-05-20 11:00 |
Osaka | Osaka City University | An Improvement of Lossless Data Compression via Substring Enumeration Yuki Shima, Ken-ichi Iwata (Univ. of Fukui), Mitsuharu Arimura (Shonan Inst. of Tech.) IT2011-1 |
(To be available after the conference date) [more] | IT2011-1 pp.1-6 |
| ISEC, IT, WBS | 2011-03-03 16:35 |
Osaka | Osaka University | The Width of Information-Spectrum and the Worst-Case Redundancy of Fixed-Length Coding Hiroki Koga (Univ. of Tsukuba), Mitsuharu Arimura (Shonan Inst. of Tech.), Ken-ichi Iwata (Univ. of Fukui) IT2010-83 ISEC2010-87 WBS2010-62 |
[more] | IT2010-83 ISEC2010-87 WBS2010-62 pp.93-98 |
| IT | 2010-07-22 16:00 |
Tokyo | Kogakuin University | The Minimum Achievable Redundancy Rate of Fixed-to-Fixed Length Lossless Source Codes for General Sources Mitsuharu Arimura (Shonan Inst. of Tech.), Ken-ichi Iwata (Univ. of Fukui) IT2010-21 |
This paper investigates the minimum achievable redundancy rate of fixed-to-fixed length lossless source codes (FF codes)... [more] | IT2010-21 pp.57-62 |
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