Abstract

For cooking professionals and culinary students, understanding cooking instructions is an essential yet demanding task. Common tasks include categorizing different approaches to cooking a dish and identifying usage patterns of particular ingredients or cooking methods, all of which require extensive browsing and comparison. However, no existing system provides support for such in-depth and at-scale analysis. We present RecipeScape, an interactive system for browsing and analyzing the hundreds of recipes of a single dish available online. We also introduce a computational pipeline that extracts cooking processes from recipe text and calculates a procedural similarity between them. To evaluate how RecipeScape supports culinary analysis at scale, we conducted a user study with cooking professionals and culinary students with 500 recipes for two different dishes. Results show that RecipeScape clusters recipes into distinct approaches, and captures notable usage patterns of ingredients and cooking actions.
Minsuk Chang
KAIST
Leonore Guillain
EPFL
Hyeungshik Jung
KAIST
Vivian Hare
Stanford University
Juho Kim
KAIST
Maneesh Agrawala
Stanford University

Live Interface Dashboard

Link to our analytics dashboard interface

RecipeScape is an interface for analyzing cooking processes at scale with three main visualization components: (a) RecipeMap provides clusters of recipes with respect to their structural similarities (b) RecipeDeck provides in-depth view and pairwise comparisons of recipes (c) RecipeStat provides usage patterns of cooking actions and ingredients.

Computational Pipeline

Computational Pipeline that uses Part-of-Speech tagger and human annotation to convert recipe text into a tree representation, and calculates pairwise distance to visualize the similarities.

Data Gathering: In the data gathering step, we crawl all search results for a queried dish, like chocolate chip cookie and tomato pasta, from recipe websites that use the schema.org’s Recipe scheme.
Parsing: We use off the shelf POS tagger and human annotation to parse tokens of the crawled recipes. More detail is provided in the section below on annotation interface.
Similarity Comparison: In order to obtain similarities between the recipes, we use a tree edit distance, a commonly used technique for comparing tree structures. However, to incorporate the semantic difference between individual cooking actions and ingredients in capturing the structural difference, we dynamically adjust the weights associated with the relabel operations. These weights are calculated using the cosine similarities of words from a pre-trained word embedding model.
Distance Matrix: This similarity information is stored in a pairwise distance matrix, where each element is the tree edit distance between the corresponding recipes. The distance matrix is then converted into x,y coordinates using the Gram matrix.
Hierarchical Clustering: We used hierarchical clustering to group recipes with procedural similarities.

Recipe Annotation Interface

We use Stanford CoreNLP’s Part- of-Speech (POS) tagger to label verbs and nouns in recipe instructions crawled in the data gathering step. Most state-of-the-art POS taggers are statistically trained using mostly declarative sentences. In result, the performance is rather limited with imperative sentences in recipe instructions like “Whisk in chocolate hazelnut spread until combined and re- move from heat.”, because parsers recognize “Whisk” as a noun, “spread” as a verb, but they are a verb and a noun in this sentence respectively. To overcome this drawback and to more accurately identify tokens for cooking actions and cooking ingredients, we recruited 12 annotators on campus to use a custom built web-based interface (left) for annotating recipe instructions. After an iteration with the POS tagger, the crowd annotator fixes the tags that are labelled incorrectly.

Annotated Recipe Dataset

link will be up soon.

Source Code

Dashboard

Pipeline

CHI 2018 Paper (Camera-Ready)

ACM DL Link

Link to paper

Poster for HCI @ KAIST 2018 Winter Workshop

CHI 2018 Slides

Slides

Bibtex

@inproceedings{Chang:2018:RIT:3173574.3174025,
 author = {Chang, Minsuk and Guillain, Leonore V. and Jung, Hyeungshik and Hare, Vivian M. and Kim, Juho and Agrawala, Maneesh},
 title = {RecipeScape: An Interactive Tool for Analyzing Cooking Instructions at Scale},
 booktitle = {Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems},
 isbn = {978-1-4503-5620-6},
 pages = {451:1--451:12},
 doi = {10.1145/3173574.3174025},
 keywords = {analysis at scale, cooking recipes, culinary analysis, interactive data mining, naturally crowdsourced data},
}

CHI 2017 LBW Paper

While our most recent paper is getting ready for publication, you can access our previous exploration here - Link to LBW Paper. The interface and the computational details have changed, but the overall approach is similar.

Poster

Slides for HCI@KAIST Workshop - 2017.02.02

Bibtex

@inproceedings{chang2017recipescape,
  title={Recipescape: Mining and analyzing diverse processes in cooking recipes},
  author={Chang, Minsuk and Hare, Vivian M and Kim, Juho and Agrawala, Maneesh},
  booktitle={Proceedings of the 2017 CHI Conference Extended Abstracts on Human Factors in Computing Systems},
  pages={1524--1531},
  year={2017},
  organization={ACM}
}