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Mandar Joshi

12 accepted papers

2026

Effective Reasoning Chains Reduce Intrinsic Dimensionality

ICML 2026spotlight

Chain-of-thought (CoT) reasoning and its variants have substantially improved the performance of language models on complex reasoning tasks, yet the precise mechanisms by which different strategies facilitate generalization remain poorly understood. While current explanations often point to increase…

Cited by 0SourceScholar
2024

BAGEL: Bootstrapping Agents by Guiding Exploration with Language

ICML 2024poster

Following natural language instructions by executing actions in digital environments (e.g. web-browsers and REST APIs) is a challenging task for language model (LM) agents. Unfortunately, LM agents often fail to generalize to new environments without human demonstrations. This work presents BAGEL, a…

Cited by 12SourcePDFScholar
2024

Efficient End-to-End Visual Document Understanding with Rationale Distillation

NAACL 2024long

Understanding visually situated language requires interpreting complex layouts of textual and visual elements. Pre-processing tools, such as optical character recognition (OCR), can map document image inputs to textual tokens, then large language models (LLMs) can reason over text.However, such meth…

Cited by 3SourcePDFScholar
2024

On Scaling Up a Multilingual Vision and Language Model

CVPR 2024poster

We explore the boundaries of scaling up a multilingual vision and language model both in terms of size of the components and the breadth of its training task mixture. Our model achieves new levels of performance on a wide-range of varied and complex tasks including multiple image-based captioning an…

Cited by 8SourcePDFScholar
2023

DePlot: One-shot visual language reasoning by plot-to-table translation

ACL 2023findings

Visual language such as charts and plots is ubiquitous in the human world. Comprehending plots and charts requires strong reasoning skills. Prior state-of-the-art (SOTA) models require at least tens of thousands of training examples and their reasoning capabilities are still much limited, especially…

2023

From Pixels to UI Actions: Learning to Follow Instructions via Graphical User Interfaces

NeurIPS 2023spotlight

Much of the previous work towards digital agents for graphical user interfaces (GUIs) has relied on text-based representations (derived from HTML or other structured data sources), which are not always readily available. These input representations have been often coupled with custom, task-specific…

2023

MatCha: Enhancing Visual Language Pretraining with Math Reasoning and Chart Derendering

ACL 2023long

Visual language data such as plots, charts, and infographics are ubiquitous in the human world. However, state-of-the-art vision-language models do not perform well on these data. We propose MatCha (Math reasoning and Chart derendering pretraining) to enhance visual language models’ capabilities in…

2023

Open-domain Visual Entity Recognition: Towards Recognizing Millions of Wikipedia Entities

ICCV 2023oral

Large-scale multi-modal pre-training models such as CLIP and PaLI exhibit strong generalization on various visual domains and tasks. However, existing image classification benchmarks often evaluate recognition on a specific domain (e.g., outdoor images) or a specific task (e.g., classifying plant sp…

Cited by 65PDFcodeScholar
2023

Pix2Struct: Screenshot Parsing as Pretraining for Visual Language Understanding

ICML 2023oral

Visually-situated language is ubiquitous---sources range from textbooks with diagrams to web pages with images and tables, to mobile apps with buttons and forms. Perhaps due to this diversity, previous work has typically relied on domain-specific recipes with limited sharing of the underlying data,…

2022

HTLM: Hyper-Text Pre-Training and Prompting of Language Models

ICLR 2022poster

We introduce HTLM, a hyper-text language model trained on a large-scale web crawl. Modeling hyper-text has a number of advantages: (1) it is easily gathered at scale, (2) it provides rich document-level and end-task-adjacent supervision (e.g. 'class' and 'id' attributes often encode document categor…

Cited by 84SourcePDFScholar
2022

Improving Passage Retrieval with Zero-Shot Question Generation

EMNLP 2022main

We propose a simple and effective re-ranking method for improving passage retrieval in open question answering. The re-ranker re-scores retrieved passages with a zero-shot question generation model, which uses a pre-trained language model to compute the probability of the input question conditioned…

2021

DESCGEN: A Distantly Supervised Datasetfor Generating Entity Descriptions

ACL 2021long

Short textual descriptions of entities provide summaries of their key attributes and have been shown to be useful sources of background knowledge for tasks such as entity linking and question answering. However, generating entity descriptions, especially for new and long-tail entities, can be challe…