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Spatial and temporal variability of HfOx-based resistive random access memory (RRAM) are investigated for manufacturing and product designs. Manufacturing variability is characterized at different levels including lots, wafers, and chips.…

Sequence-to-sequence models, such as attention-based models in automatic speech recognition (ASR), are typically trained to optimize the cross-entropy criterion which corresponds to improving the log-likelihood of the data. However, system…

Computation and Language · Computer Science 2017-12-06 Rohit Prabhavalkar , Tara N. Sainath , Yonghui Wu , Patrick Nguyen , Zhifeng Chen , Chung-Cheng Chiu , Anjuli Kannan

We investigate the amplification of externally excited spin waves via the Spin-Transfer-Torque (STT) effect in combination with the Spin-Hall-Effect (SHE) employing short current pulses. The results reveal that, in the case of an…

We explore efficient estimation of statistical quantities, particularly rare event probabilities, for stochastic reaction networks. Consequently, we propose an importance sampling (IS) approach to improve the Monte Carlo (MC) estimator…

Numerical Analysis · Mathematics 2024-03-12 Chiheb Ben Hammouda , Nadhir Ben Rached , Raúl Tempone , Sophia Wiechert

This application note discusses the working principle of spin-transfer torque magnetoresistive random access memory (STT-MRAM) and the impact that magnetic fields can have on STT-MRAM operation. Sources of magnetic field and typical…

Conventional low-power static random access memories (SRAMs) reduce read energy by decreasing the bit-line voltage swings uniformly across the bit-line columns. This is because the read energy is proportional to the bit-line swings. On the…

Information Theory · Computer Science 2018-05-31 Yongjune Kim , Mingu Kang , Lav R. Varshney , Naresh R. Shanbhag

Processing-in-memory (PIM) reduces data transfer latency by rolling memory and logic elements into one compute location. As an emergent material candidate for such an architecture, we propose a strained Weyl semimetal based…

Mesoscale and Nanoscale Physics · Physics 2025-11-20 Youjian Chen , Hamed Vakili , Md Golam Morshed , Avik W. Ghosh

Automatic speech recognition (ASR) systems often encounter difficulties in accurately recognizing rare words, leading to errors that can have a negative impact on downstream tasks such as keyword spotting, intent detection, and text…

Artificial Intelligence · Computer Science 2023-10-10 Jiajun He , Zekun Yang , Tomoki Toda

Dynamic Fault Trees (DFT) are widely adopted in industry to assess the dependability of safety-critical equipment. Since many systems are too large to be studied numerically, DFTs dependability is often analysed using Monte Carlo…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-29 Carlos E. Budde , Marco Biagi , Raúl E. Monti , Pedro R. D'Argenio , Mariëlle Stoelinga

The application of Magnetic Random-Access Memory (MRAM) in computing-in-memory (CIM) has gained significant attention. However, existing designs often suffer from high energy consumption due to their reliance on complex analog circuits for…

Hardware Architecture · Computer Science 2025-11-10 Deyang Yu , Chenchen Liu , Chuanjie Zhang , Xiao Fang , Weisheng Zhao

The conventional computer architecture has been facing challenges answering the ever-increasing demands from emerging applications, such as AI, for energy-efficient computation and memory hardware systems. Computational Random Access Memory…

Emerging Technologies · Computer Science 2025-07-15 Yang Lv , Brahmdutta Dixit , Jian-Ping Wang

The word error rate (WER) of soft-decision-decoded binary block codes rarely has closed-form. Bounding techniques are widely used to evaluate the performance of maximum-likelihood decoding algorithm. But the existing bounds are not tight…

Information Theory · Computer Science 2015-03-13 Xiaogang Chen , Hongwen Yang , Jian Gu , Hongkui Yang

In this work, we propose an algorithm to simulate rare events for electronic circuit design. Our approach heavily relies on a smart use of importance sampling, which enables us to tackle probabilities of the magnitude 10 --10. Not only can…

Probability · Mathematics 2021-09-20 Xavier Jonsson , Jérôme Lelong

We report theoretical investigation of the switching probability of electric field-induced precessional magnetization switching by solving the Fokker-Planck equation numerically with finite difference method. The switching probability is…

Mesoscale and Nanoscale Physics · Physics 2013-12-23 Hongguang Cheng , Ning Deng

Offshoring the proprietary Intellectual property (IP) has recently increased the threat of malicious logic insertion in the form of Hardware Trojan (HT). A potential and stealthy HT is triggered with nets that switch rarely during regular…

Cryptography and Security · Computer Science 2020-03-31 Sheikh Ariful Islam , Love Kumar Sah , Srinivas Katkoori

Transformers, originally proposed for natural language processing (NLP) tasks, have recently achieved great success in automatic speech recognition (ASR). However, adjacent acoustic units (i.e., frames) are highly correlated, and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-20 Yangyang Shi , Yongqiang Wang , Chunyang Wu , Christian Fuegen , Frank Zhang , Duc Le , Ching-Feng Yeh , Michael L. Seltzer

We propose an improved scheme for low-power writing of binary bits in non-volatile (multiferroic) magnetic memory with electrically generated mechanical stress. Compared to an earlier idea [Tiercelin, et al., J. Appl. Phys., 109, 07D726…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Ayan K. Biswas , Supriyo Bandyopadhyay , Jayasimha Atulasimha

The authors proposed and computationally analyzed nonvolatile static random access memory (NV-SRAM) architecture using metal-oxide-semiconductor field-effect transistor (MOSFET) type of spin-transistors referred to as pseudo-spin-MOSFET…

Materials Science · Physics 2009-01-21 Yusuke Shuto , Shuu'ichirou Yamamoto , Satoshi Sugahara

We show that the tunable gate voltage in n-doped AlGaAs/GaAs QW (quantum well) is a key in designing an efficient and ultrafast MRAM (magnetoresistive random access memory). The Rashba spin-orbit coupling in such QWs can be tuned…

Mesoscale and Nanoscale Physics · Physics 2023-05-16 Sushmita Saha , Deepak Sain , Alestin Mawrie

Reinforcement Learning with Verifiable Rewards (RLVR) has achieved great success in developing Large Language Models (LLMs) with chain-of-thought rollouts for many tasks such as math and coding. Nevertheless, RLVR struggles with sample…

Machine Learning · Computer Science 2026-05-15 Kai Yan , Alexander G. Schwing , Yu-Xiong Wang
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