AVIS: Autonomous Visual Information Seeking with Large Language Models
Authors: name: Ziniu Hu; name: Ahmet Iscen; name: Chen Sun; name: Kai-Wei Chang; name: Yizhou Sun; name: David A Ross; name: Cordelia Schmid; name: Alireza Fathi
Published: 2023-06-13 20:50:22

Abstract: In this paper, we propose an autonomous information seeking visual question
answering framework, AVIS. Our method leverages a Large Language Model (LLM) to
dynamically strategize the utilization of external tools and to investigate
their outputs, thereby acquiring the indispensable knowledge needed to provide
answers to the posed questions. Responding to visual questions that necessitate
external knowledge, such as "What event is commemorated by the building
depicted in this image?", is a complex task. This task presents a combinatorial
search space that demands a sequence of actions, including invoking APIs,
analyzing their responses, and making informed decisions. We conduct a user
study to collect a variety of instances of human decision-making when faced
with this task. This data is then used to design a system comprised of three
components: an LLM-powered planner that dynamically determines which tool to
use next, an LLM-powered reasoner that analyzes and extracts key information
from the tool outputs, and a working memory component that retains the acquired
information throughout the process. The collected user behavior serves as a
guide for our system in two key ways. First, we create a transition graph by
analyzing the sequence of decisions made by users. This graph delineates
distinct states and confines the set of actions available at each state.
Second, we use examples of user decision-making to provide our LLM-powered
planner and reasoner with relevant contextual instances, enhancing their
capacity to make informed decisions. We show that AVIS achieves
state-of-the-art results on knowledge-intensive visual question answering
benchmarks such as Infoseek and OK-VQA.