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Antariksh Verma

Publications and source records attributed to Antariksh Verma.

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SuperProvenanceWidgets: Tracking and Visualizing Analytic Provenance Across UI Control Elements

ProvenanceWidgets is an existing JavaScript library that tracks the recency and frequency of user interactions with individual UI controls (e.g., range sliders and dropdowns) and dynamically overlays this provenance onto them. In this work, we introduce SuperProvenanceWidgets, an extension to ProvenanceWidgets featuring a new SuperWidget that similarly tracks and visualizes provenance but across multiple UI controls, enabling users to understand how, when, and whether different UI controls were used. Through three example usage scenarios, we demonstrate how this cross-control SuperWidget helps (a) audit and share analysis workflows, (b) surface and mitigate exploration biases, and (c) facilitate user interface design and personalization. We also perform a technical self-assessment using the Cognitive Dimensions of Notations to evaluate the library's usability for developers. SuperProvenanceWidgets is integrated into the ProvenanceWidgets library and is available as open-source software at ProvenanceWidgets.github.io, empowering developers to build advanced provenance applications.

cs.HC

Make a Video Call with LLM: A Measurement Campaign over Six Mainstream Apps

In 2025, Large Language Model (LLM) services have launched a new feature -- AI video chat -- allowing users to interact with AI agents via real-time video communication (RTC), just like chatting with real people. Despite its significance, no systematic study has characterized the performance of existing AI video chat systems. To address this gap, this paper proposes a comprehensive benchmark across four dimensions: quality, latency, internal mechanisms, and system overhead. Using custom testbeds, we further evaluate six mainstream AI video chatbots with this benchmark. We also build an online platform for user study. The measurement leads to interesting findings that could be beneficial to the future optimizations. For example, the network latency of AI video chat matters not as much as human video chat. The capabilities of AI agents matters most in the user experience. Our benchmarking results also open up several research questions for future optimizations of AI video chatbots. Availability: https://callarena.net/ for the online evaluation platform and our open-sourced dataset and testbed.

cs.NI