Export Citations
Save this search
Please login to be able to save your searches and receive alerts for new content matching your search criteria.
- demonstrationMay 2024
CommuTiles: Shape-Changeable Modular Computer System Using Proximity Wireless Communication
- Masato Goto,
- Ibuki Sugiyama,
- Kenta Higuchi,
- Toshiki Goto,
- Junichiro Kadomoto,
- Hidetsugu Irie,
- Shuichi Sakai
CHI EA '24: Extended Abstracts of the 2024 CHI Conference on Human Factors in Computing SystemsArticle No.: 395, Pages 1–5https://doi.org/10.1145/3613905.3648669We present CommuTiles, a computer system where multiple tile-shaped modules are wirelessly connected. This represents the first implementation of the concept of a shape-changeable computer system capable of realizing diverse shapes and functions, as well ...
- posterJuly 2024
Multi-Tree Network Protocol Enabling System Partitioning for Shape-Changeable Computer System
CF '24: Proceedings of the 21st ACM International Conference on Computing FrontiersPages 316–317https://doi.org/10.1145/3649153.3652995Shape-changeable computer system is proposed as a system that forms various shapes by communicating wirelessly with many adjacent chips. A network that supports diverse shapes and dynamic chip replacement is important, and methods for constructing ad-hoc ...
- Work in ProgressFebruary 2024
Shape Estimation Algorithm for Collective Shape-Changing Interface Using Wirelessly Connected Computers
TEI '24: Proceedings of the Eighteenth International Conference on Tangible, Embedded, and Embodied InteractionArticle No.: 86, Pages 1–7https://doi.org/10.1145/3623509.3635267In recent years, research on shape-changing user interfaces composed of collective objects has been conducted extensively. With advancements in semiconductor technology, there is a prospect of miniature wireless-connected computers cooperating to ...
- short-paperApril 2024
Poster Abstract: Towards a Tiny Digital Displacement Sensor Utilizing Bit-Error Characteristics of Inter-Chip Wireless Bus
SenSys '23: Proceedings of the 21st ACM Conference on Embedded Networked Sensor SystemsPages 554–555https://doi.org/10.1145/3625687.3628416In this paper, a displacement sensing method utilizing the bit-error characteristics in inter-chip wireless bus is presented. A non-contact displacement sensor is highly demanded in many engineering fields, and its miniaturization contributes to the ...
- short-paperApril 2024
Poster Abstract: Investigation of Distance Sensing Method Using Magnetic Resonant Coupled Coils for Deformable User Interfaces
SenSys '23: Proceedings of the 21st ACM Conference on Embedded Networked Sensor SystemsPages 502–503https://doi.org/10.1145/3625687.3628377We investigated the possibility of using the output voltage of magnetic resonant coupled coils to realize a distance sensing method that can be applied even when the distance between coils is long. We changed the distance between PCB boards with 1 cm ...
-
- posterOctober 2023
iKnowde: Interactive Learning Path Generation System Based on Knowledge Dependency Graphs
UIST '23 Adjunct: Adjunct Proceedings of the 36th Annual ACM Symposium on User Interface Software and TechnologyArticle No.: 25, Pages 1–3https://doi.org/10.1145/3586182.3616628This paper presents a system that addresses the challenges faced by novice learners by identifying and tracking their learning topics and current knowledge status, and providing a suitable, dynamically updated learning path. The system represents the ...
- research-articleDecember 2023
Clockhands: Rename-free Instruction Set Architecture for Out-of-order Processors
- Toru Koizumi,
- Ryota Shioya,
- Shu Sugita,
- Taichi Amano,
- Yuya Degawa,
- Junichiro Kadomoto,
- Hidetsugu Irie,
- Shuichi Sakai
MICRO '23: Proceedings of the 56th Annual IEEE/ACM International Symposium on MicroarchitecturePages 1–16https://doi.org/10.1145/3613424.3614272Out-of-order superscalar processors are currently the only architecture that speeds up irregular programs, but they suffer from poor power efficiency. To tackle this issue, we focused on how to specify register operands. Specifying operands by register ...
- short-paperOctober 2023
A Functional Reactive Programming Language for Wirelessly Connected Shape-Changeable Chiplet-Based Computers
SPLASH 2023: Companion Proceedings of the 2023 ACM SIGPLAN International Conference on Systems, Programming, Languages, and Applications: Software for HumanityPages 61–62https://doi.org/10.1145/3618305.3623608This work presents the concept of MorphLang, a functional reactive programming language tailored for shape-changeable computers, which are built using wirelessly interconnected chiplets. MorphLang simplifies the programming process for these systems ...
- research-articleFebruary 2023
A Sound and Complete Algorithm for Code Generation in Distance-Based ISA
CC 2023: Proceedings of the 32nd ACM SIGPLAN International Conference on Compiler ConstructionPages 73–84https://doi.org/10.1145/3578360.3580263The single-thread performance of a processor core is essential even in the multicore era. However, increasing the processing width of a core to improve the single-thread performance leads to a super-linear increase in power consumption. To overcome ...
- research-articleMay 2022
T-SKID: predicting when to prefetch separately from address prediction
DATE '22: Proceedings of the 2022 Conference & Exhibition on Design, Automation & Test in EuropePages 1389–1394Prefetching is an important technique for reducing the number of cache misses and improving processor performance, and thus various prefetchers have been proposed. Many prefetchers are focused on issuing prefetches sufficiently earlier than demand ...
- research-articleJanuary 2022
Deformable Chiplet-Based Computer Using Inductively Coupled Wireless Communication
ASPDAC '22: Proceedings of the 27th Asia and South Pacific Design Automation ConferencePages 98–99https://doi.org/10.1109/ASP-DAC52403.2022.9712494Research on microrobot swarms and deformable user interfaces has been conducted extensively. Inductively coupled wireless bus technology has been proposed for such applications. This technology uses inductive coupling among on-chip coils to connect ...
- abstractJuly 2020
A Self-Sensing Technique Using Inductively-Coupled Coils for Deformable User Interfaces
AsianCHI '20: Proceedings of the 2020 Symposium on Emerging Research from Asia and on Asian Contexts and CulturesPage 7https://doi.org/10.1145/3391203.3391226We present a device shape sensing method using coils that are inductively coupled in the horizontal direction. By observing the change in the coupling characteristics between the coils arranged side by side, the positional relationship between the coils ...
- research-articleJanuary 2020
An Inductively Coupled Wireless Bus for Chiplet-Based Systems
ASPDAC '20: Proceedings of the 25th Asia and South Pacific Design Automation ConferencePages 9–10https://doi.org/10.1109/ASP-DAC47756.2020.9045184A wireless bus for inter-chiplet communication is presented. Utilizing horizontal inductive coupling of on-chip coils, wireless connection between chiplets are established. A test chip prototyped in 0.18 μm CMOS confirms 2.0 Gb/s bus communication ...
- research-articleOctober 2018
STRAIGHT: hazardless processor architecture without register renaming
- Hidetsugu Irie,
- Toru Koizumi,
- Akifumi Fukuda,
- Seiya Akaki,
- Satoshi Nakae,
- Yutaro Bessho,
- Ryota Shioya,
- Takahiro Notsu,
- Katsuhiro Yoda,
- Teruo Ishihara,
- Shuichi Sakai
MICRO-51: Proceedings of the 51st Annual IEEE/ACM International Symposium on MicroarchitecturePages 121–133https://doi.org/10.1109/MICRO.2018.00019The single-thread performance of a processor improves the capability of the entire system by reducing the critical path latency of programs. Typically, conventional superscalar processors improve this performance by introducing out-of-order (OoO) ...
- research-articleNovember 2016
High-Accuracy Joint Position Estimation and Posture Detection System for Driving
MOBIQUITOUS 2016: Adjunct Proceedings of the 13th International Conference on Mobile and Ubiquitous Systems: Computing Networking and ServicesPages 219–224https://doi.org/10.1145/3004010.3004035In this paper, we present a novel Advanced Driver Assistance System (ADAS) that monitors driving posture. To achieve accuracy and robustness of the system, we propose a high-accuracy method for estimating the joint positions of drivers and an algorithm ...
- ArticleDecember 2014
Accelerating OLAP Workload on Interconnected FPGAs with Flash Storage
CANDAR '14: Proceedings of the 2014 Second International Symposium on Computing and NetworkingPages 440–446https://doi.org/10.1109/CANDAR.2014.87The data volume used in online analytical processing (OLAP) applications is rapidly increasing because of the increasing popularity of various Web services and emerging sensor technologies. Since the amount of accumulated data is frequently too large to ...
- ArticleSeptember 2014
An FPGA-Based Tightly Coupled Accelerator for Data-Intensive Applications
MCSOC '14: Proceedings of the 2014 IEEE 8th International Symposium on Embedded Multicore/Manycore SoCsPages 289–296https://doi.org/10.1109/MCSoC.2014.47Computation beside a data source plays an important role in achieving a high performance with low energy consumption in Big Data processing. In contrast to that of a conventional workload, the processing of Big Data frequently requires that a massive ...
- ArticleDecember 2013
Sharing Computing Resources with Virtual Machines by Transparent Data Access
CANDAR '13: Proceedings of the 2013 First International Symposium on Computing and NetworkingPages 359–365https://doi.org/10.1109/CANDAR.2013.64Cloud computing has rapid growth in enterprise and academic areas. Computing platform makes up the transition from physical servers to virtual machines (VMs) in the cloud. Instead of many advantages, VMs remain several problems to employ effective ...
- ArticleDecember 2013
An Efficient and Scalable Implementation of Sliding-Window Aggregate Operator on FPGA
CANDAR '13: Proceedings of the 2013 First International Symposium on Computing and NetworkingPages 112–121https://doi.org/10.1109/CANDAR.2013.23This paper presents an efficient and scalable implementation of an FPGA-based accelerator for sliding-window aggregates over disordered data streams. With an increasing number of overlapping sliding-windows, the window aggregates have a serious ...
- ArticleSeptember 2013
Wire-Speed Implementation of Sliding-Window Aggregate Operator over Out-of-Order Data Streams
MCSOC '13: Proceedings of the 2013 IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-ChipPages 55–60https://doi.org/10.1109/MCSoC.2013.23This paper shows the design and evaluation of an FPGA-based accelerator for sliding-window aggregation over data streams with out-of-order data arrival. We propose an order-agnostic hardware implementation technique for windowing operators based on a ...