Philip Levis’s research while affiliated with Stanford University and other places

... While Large Language Models (LLMs) exhibit remarkable capabilities applicable to automation [4], individual LLM interactions are often insufficient for reliably handling multi-step, real-world processes. Consequently, the paradigm of Compound AI Systems has emerged, integrating multiple LLM calls with external APIs and tools to address complex automation challenges [49,34,5]. Such systems are increasingly deployed across various industries to streamline operations and enhance decision-making. ...

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Flow State: Humans Enabling AI Systems to Program Themselves

... Furthermore, administrators need to leverage oversubscription, effectively running multiple processes or threads per core to maximize resource utilization [35]. As we more extensively discuss in §3.2, the problem is that most of the userspace networking stacks (full system solutions such as Shinjuku, or Demikernel [59,85]) follow the libOS model [58,60,80], effectively compiling the networking stack together with the application, which in turn takes full ownership of the NIC. This model is incompatible with the characteristics of cloud applications. ...

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Fast Userspace Networking for the Rest of Us

... Natural convection finds useful application in smaller-scale home energy storage systems, as shown in Figure 2, prioritizing ease of use and energy efficiency [27]. Examples include the Tesla Powerwall [28], LG Chem RESU [29], Sonnen Eco [30], and Enphase Encharge [31]. These systems utilize lithium-ion or lithium-iron-phosphate battery technology to store excess energy from solar panels or the grid, offering homeowners greater energy independence, flexibility, and the ability to optimize energy usage. ...

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Comparative Review of Thermal Management Systems for BESS

... Moderate martial art exercises can enhance various physical qualities such as flexibility, coordination, and strength, improve immunity, and reduce the risk of illness [5]. However, excessive martial art exercise may cause physical dysfunction, and in severe cases, limb injuries may occur [6]. Therefore, it is necessary to develop a suitable martial art exercise intensity assessment method to recommend appropriate exercise and reduce the risk of injury for people. ...

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Application of GGNN inference propagation model for martial art intensity evaluation

... Ayers et al. [14], Uzlu andŞaykol [15], and Noseda et al. [16] focus specifically on embedded systems programming in Rust. They show that the design concepts of Rust are a good fit for embedded systems. ...

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Overview of Embedded Rust Operating Systems and Frameworks

... These tests will evaluate key performance metrics such as synchronization accuracy, latency, and the effectiveness of personalized content delivery in enhancing learning outcomes. From a technical standpoint, we aim to study approaches to optimize bandwidth consumption and reduce latency by exploring advanced techniques such as foveated video streaming, which achieves throughput reduction by prioritizing rendering quality in areas where the user is looking [27,28]. The user's viewpoint prediction can be also utilized to cache video data proactively and partially offload computing tasks to the edge server, to meet the demanding E2E latency [29]. ...

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Loka: A Cross-Platform Virtual Reality Streaming Framework for the Metaverse

... The ECO-system encounters the energy conserved by service for the synchronous operation to get the best battery timings of the device. Cinder operating system [17][18] works for the managing the energy efficiency in the application by using three control mechanisms i.e. isolation, delegation, and subdivision. The prototype is tested on Android G1 which is normally worked on Mac, Android or Microsoft operating system. ...

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Energy Consumption in Mobile Phones

... Unfortunately, these data exchanges suffer from serialization overhead, where the in-memory data needs to be serialized into a contiguous representation for the data transport framework to be able to carry it over the wire [10] [16]. This is even the case for columnar in-memory formats such as Apache Arrow [4], which, although zero-copy within the same host, requires expensive serialization when transferring between hosts. ...

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Thallus: An RDMA-based Columnar Data Transport Protocol

... However, naively applying samplers of existing work to TAQA either fails to accelerate queries or requires modifying DBMSs. Specifically, row-level samplers are inefficient in databases that read data at the block level, resulting in query latencies as high as exact queries ( §4.1) [7,91]. This is especially the case for analytical queries where data scanning is often the primary latency bottleneck [17,99]. ...

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PilotDB: Database-Agnostic Online Approximate Query Processing with A Priori Error Guarantees (Technical Report)

... Authors tended to the issues with respect to the utilization of non IP Low Power Wide Area Networks, because of the use of IP on compelled devices. (Ayers, H., 2020) Examines the execution of 6lowpan in major installed and sensor systems administration working framework, in any case, they don't interoperate. i.e., for any pair of executions, one implementation sends 6lowpan packets which the other fails to process and get. ...

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PERFORMANCE EVALUATION OF 802.11 A/G WIRELESS NETWORKS WITH IP6HC