Bjoern Hartmann

schoolUniversity of California - Berkeleybar_chart#738 Global Rank

Total Papers

HCI Rank

#738

Research Areas

Years Active

Recent Publications

Noise Pilot: Enabling Artistic Workflow Composition with Diffusion-Based Image Generation

Creativity support tools (CSTs) increasingly include image-generation features. The underlying diffusion models enact a particular image diffusing process that AI CSTs tend to obscure within a black-box. Artists’ creative control is limited to indirect manipulation (prompting), chaining these "black-boxes" together, o…

CHI '255th+ AuthorCreative Coding & Computational Art +1

Reimagining Misuse as Creative Practice: Impressions and Implications of Usage Norms on Digital Artists

Digital artists use creativity support tools guided by their ideas of “intended use” and therefore "misuse''—but what does misuse mean in creative practice? To discover what constitutes misuse and what creative contexts call for misuse, we interviewed 20 expert creative practitioners across 8 visual art disciplines. W…

CHI '25CorrespondingHonorable MentionGenerative AI (Text, Image, Music, Video) +2

Beyond Code Generation: LLM-supported Exploration of the Program Design Space

In this work, we explore explicit Large Language Model (LLM)-powered support for the iterative design of computer programs. Program design, like other design activity, is characterized by navigating a space of alternative problem formulations and associated solutions in an iterative fashion. LLMs are potentially power…

CHI '25CorrespondingHonorable MentionGenerative AI (Text, Image, Music, Video) +2

Creativity Supportive Ecosystems: A Framework for Understanding Function and Disruption in Online Art Worlds

The online art world is a double-edged sword: the Internet’s vibrant culture of open, cooperative art-sharing also attracts nonconsensual reuse and appropriation. Artists continually navigate supportive and challenging interactions on social platforms, including community-shifting disruptions; the reuse of creative wo…

UIST '243rd AuthorHuman-LLM Collaboration

Who Validates the Validators? Aligning LLM-Assisted Evaluation of LLM Outputs with Human Preferences

Due to the cumbersome nature of human evaluation and limitations of code-based evaluation, Large Language Models (LLMs) are increasingly being used to assist humans in evaluating LLM outputs. Yet LLM-generated evaluators simply inherit all the problems of the LLMs they evaluate, requiring further human validation. We…

UIST '244th AuthorHuman-LLM Collaboration +1

UICrit: Enhancing Automated Design Evaluation with a UI Critique Dataset

Automated UI evaluation can be beneficial for the design process; for example, to compare different UI designs, or conduct automated heuristic evaluation. LLM-based UI evaluation, in particular, holds the promise of generalizability to a wide variety of UI types and evaluation tasks. However, current LLM-based techniq…

CHI '245th+ AuthorCircuit Making & Hardware Prototyping

Design Space Exploration for Board-level Circuits: Exploring Alternatives in Component-based Design

While recent work explores novel tools to make electronics and device design easier and more accessible, these tend to be either highly automated (great for novices, but limiting for more advanced users) or highly manual (suitable for experts, but imposes a higher skill barrier to entry). In this work, we examine a mi…

CHI '24CorrespondingHuman-LLM Collaboration +1

Generating Automatic Feedback on UI Mockups with Large Language Models

Feedback on user interface (UI) mockups is crucial in design. However, human feedback is not always readily available. We explore the potential of using large language models for automatic feedback. Specifically, we focus on \changes{applying GPT-4 to automate heuristic evaluation}, which currently entails a human exp…

DIS '23CorrespondingFull-Body Interaction & Embodied Input +2

Dual Body Bimanual Coordination in Immersive Environments

A common way to enable immersion in VR is to render a virtual body that mirrors the user's physical movements. VR allows us to design interaction schemes that go beyond direct avatar embodiments. In particular, there is a growing body of literature investigating the simultaneous control of multiple bodies in VR. We c…

DIS '23CorrespondingCreative Coding & Computational Art +1

NFT Art World: The Influence of Decentralized Systems on the Development of Novel Online Creative Communities and Cooperative Practices

Reporting on the Non-Fungible Token (NFT) ecosystem overwhelmingly focuses on the community that drove its growth and price volatility, gaining widespread media attention in 2021. This overlooks the communities developing novel creative practices on NFT platforms. Interviews with 16 creatives utilizing NFTs reveal a v…

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