What cooks need from multimedia and textually enhanced recipes
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What cooks need from multimedia and textually enhanced recipes

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Presentation at 3rd Workshop for Multimedia for Cooking and Eating Activities at ACM International Conference on Multimedia, Dana Point, California Dec 2011.

Presentation at 3rd Workshop for Multimedia for Cooking and Eating Activities at ACM International Conference on Multimedia, Dana Point, California Dec 2011.

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What cooks need from multimedia and textually enhanced recipes What cooks need from multimedia and textually enhanced recipes Presentation Transcript

  • What cooks need from multimedia and textually enhanced recipes Lucy Buykx, Helen Petrie Human Computer Interaction Research Group, Dept of Computer Science, University of York
  • Background  Earlier systems to help cooks have different goals To help novice cooks (Ju et al 2001)  To reduce errors (Tran et al 2005)  To increase efficiency (Hamada et al 2005)    To increase confidence (Mennicken et al 2010) Share a similar approach to recipe Transform text into short steps  Enhance with multimedia 
  • This study  Tests    Control format vs short steps Ingredient measures in steps Measures  Time taken to complete recipe (efficiency)  Post recipe rating (experience)  Post recipe feedback (problems, preferences) View slide
  • Study design  3 recipes   Lemongrass & lime chicken burgers   Spicy bean and tomato dip Key lime pie 3 conditions  Control (as published)  Simple step-by-step  Edited step-by-step View slide
  • Participants  24 cooks  18-25 years  equal male/female  92% (22) cook more than 4 days a week  37% (9) use a recipe once in 2 weeks
  • Protocol  Brief & kitchen explore  Complete participant profile  Cook recipes x 3    Cook recipe Complete post-recipe questionnaire Debrief, pack & take home food
  • Recipe text conditions Control Simple step-by-step Edited step-by-step
  • Control condition
  • Transformation: ControlSimple Control 1. 2. 3. 4. Simple step-bystep Edited step-bystep a) Identify tasks within steps b) Split out into steps c) Renumber steps Soak the black beans… Heat the oil in a saucepan set over high heat and add the red pepper and onion. Reduce the heat to low, cover and cook for about 8 minutes. Add the cumin, garlic and chilli and cook for a further 2 minutes. Add the beans, tomatoes, vinegar and passata and bring to the boil. Reduce the heat and simmer rapidly for 10 minutes, until almost all the liquid has evaporated and the tomatoes start to look mushy. Preheat the grill… Transfer the bean mixture…
  • Transformation: ControlSimple Control 1. 2. 3. 4. Simple step-bystep Edited step-bystep a) Identify tasks within steps b) Split out into steps c) Renumber steps Soak the black beans… Heat the oil in a saucepan set over high heat || and add the red pepper and onion. || Reduce the heat to low, || cover and cook for about 8 minutes. || Add the cumin, garlic and chilli || and cook for a further 2 minutes. || Add the beans, tomatoes, vinegar and passata ||and bring to the boil. || Reduce the heat|| and simmer rapidly for 10 minutes, until almost all the liquid has evaporated and the tomatoes start to look mushy. Preheat the grill… Transfer the bean mixture…
  • Simple step-by-step condition
  • Transformation: SimpleEdited Control Simple step-bystep Edited step-bystep a) Identify tasks within ingredients b) Move tasks to steps in method section c) Add ingredient measures to steps 1/2 small red pepper, deseeded and thinly sliced 1 small red onion, thinly sliced 1 teaspoon ground cumin 1 garlic clove, finely chopped 2 tomatoes, chopped 1 small red chilli, finely chopped 1 tablespoon red wine vinegar 125 ml passata
  • Transformation: SimpleEdited Control Simple step-bystep Edited step-bystep a) Identify tasks within ingredients b) Move tasks to steps in method section c) Add ingredient measures to steps 1/2 small red pepper, deseeded and thinly sliced 1 small red onion, thinly sliced 1 teaspoon ground cumin 1 garlic clove, finely chopped 2 tomatoes, chopped 1 small red chilli, finely chopped 1 tablespoon red wine vinegar 125 ml passata
  • Edited step-by-step condition Control Simple step-bystep Edited step-bystep 1/2 small red pepper 1 small red onion 1 teaspoon ground cumin 1 garlic clove 2 tomatoes, chopped 1 small red chilli 1 tablespoon red wine vinegar 125 ml passata 1. 2. 3. 4. Deseed and thinly slice ½ small red pepper Thinly slice 1 small red onion Finely chop 1 garlic clove Chop 2 tomatoes….
  • Edited step-by-step condition
  • Results  Time taken to complete recipe  Post recipe ratings  Post recipe feedback
  • Time taken to complete  Key lime pie recipe  No significant difference in mean time to complete recipe  Variation in cooks higher than between conditions  Efficiency measures not appropriate for domestic cooks
  • Post recipe rating Were the instructions clear?
  • Post recipe rating Were the instructions easy to follow?
  • Post recipe feedback  Free form comments in addition to scores  61 comments from 20 cooks  Sorted into categories  Dense steps cause frustration (10 comments)  Ingredient measures not in step (7 comments)  Queries about technique (15 comments)  Queries about interim or end state (6 comments)  Want visuals (6 comments)
  • Post recipe feedback: dense steps About recipes in control condition: “The text was difficult to read as it was one solid block. Had to reread a number of times to feel confident in what I was doing.” (Cook 11) “The second step could have been broken down in two steps because when read on the ipad, the vast amount of text cluttered the screen and made it seem more complex than it actually was.” (Cook 23) “Some bits had lots of text in one massive paragraph - means that you have to read through it a number of times to find the bit you need.” (Cook 4)
  • Post recipe feedback: ingredient measures About recipes in control & simple step-by-step condition: “it is better to include the quantity of ingredients required in the instructions on iPad” (cook 1) “One issue I found was that I kept having to refer back to the first page, on which the ingredients were listed, and it was a bit annoying” (cook 15) “Quite a lot of annoyance with flipping back and forth between pages, back to see amounts needed and forward to see what to do next” (cook 7)
  • Post recipe feedback: state query “It would be nice to get information on the consistency and maybe texture of the food in the making, depending on the step you are at.” (cook 21) “crushed garlic to me implies a crushed clove, and in a burger, minced is more appropriate” (cook 18) “recipe didn’t mention whether or not to remove coriander stalks” (cook 24)
  • Post recipe feedback: technique query  “not very clear about the way to chop the tomatoes” (cook 3)  “slightly ambiguous statements like ‘mix well’ although common in recipes not quite clear” (cook 4)  “the onion needed to be grated but I wasn’t sure which side of the grater to use” (cook 12)
  • Post recipe feedback: want visuals “I’d have really liked a photograph (possibly at key stages) to know what I should be aiming for” (cook 11) “I think if there are some pictures to illustrate what it looks like in important steps will be fantastic” (cook 22) “I believe that when consulting recipes people are very visual and like to know what their food is going to look like in the end so they can make comparisons and such” (cook 23)
  • In summary  Different recipe conditions did not effect time or score  But comments show different experience  Smaller steps useful  Ingredient  Photos measures preferred desired  Technique & ingredient states benefit from extra info  Support for recipe enhancement
  • Questions  Lucy Buykx buykx@cs.york.ac.uk  Helen Petrie petrie@cs.york.ac.uk