Which component is essential for the Cranfield evaluation paradigm?
Anonymous Quiz
55%
Real-time user feedback
36%
A set of relevance judgments
0%
Social media data
9%
Mobile app interface
What is the primary use of the F1-Score?
Anonymous Quiz
27%
To measure indexing speed
55%
To combine Precision and Recall into one metric
18%
To evaluate user satisfaction
0%
To calculate storage requirements
👎1🥰1
What is the purpose of the Qrels file in a test collection?
Anonymous Quiz
18%
To store the original documents
18%
To log user click-through rates
64%
To record relevance judgments for query-document pairs
0%
To contain the search engines source code
What does a high Precision value typically signify about a system?
Anonymous Quiz
27%
It finds all relevant documents effectively
64%
Its results contain mostly relevant documents
0%
It has a very fast response time
9%
It can handle complex queries well
In the Fβ measure, if β is greater than 1, what is emphasized?
Anonymous Quiz
10%
Precision is more important than Recall
50%
Recall is more important than Precision
40%
Both are equally important
0%
The measure is invalid
What is the main focus of effectiveness evaluation?
Anonymous Quiz
20%
How quickly the system returns results
80%
The quality and relevance of returned documents
0%
How easy the system is to use
0%
The size of the document index
What are the three necessary components of a reusable test collection?
Anonymous Quiz
0%
Users,Tasks, and Metrics
91%
Documents,Queries, and Relevance Judgments
9%
Algorithms,Indexes, and Rankings
0%
Hardware,Software, and Networks
What is the key challenge in the Precision-Recall trade-off?
Anonymous Quiz
45%
Achieving high scores in both is usually easy
27%
Improving one often reduces the other
27%
They are not related to each other
0%
Recall is always easier to optimize
What type of retrieval system are set-based measures like Precision best suited for?
Anonymous Quiz
20%
Ranked retrieval systems
40%
Boolean retrieval systems
20%
Neural network models
20%
Real-time streaming search
What does Recall measure?
Anonymous Quiz
17%
The purity of the search results
58%
The completeness of the search results
25%
The speed of the search
0%
The users satisfaction level
What is the harmonic mean of Precision and Recall called?
Anonymous Quiz
50%
F1-Score
17%
Arithmetic Mean
17%
Geometric Mean
17%
Weighted Average
In evaluation, what do relevance judgments provide?
Anonymous Quiz
9%
A measure of system speed
73%
Ground truth data for evaluation
18%
User interface preferences
0%
Hardware performance metrics
What is NOT part of the standard Cranfield evaluation setup?
Anonymous Quiz
25%
Document Collection
17%
Set of Queries
17%
Relevance Judgments
42%
Live user interaction
What is the primary goal of IR system evaluation?
Anonymous Quiz
23%
To measure only processing speed
62%
To assess effectiveness and/or efficiency
8%
To determine visual design quality
8%
To count the number of documents
What does a high Recall value indicate?
Anonymous Quiz
18%
The system returns very precise results
82%
The system finds most relevant documents
0%
The system has a small index
0%
The system uses simple algorithms
What is the purpose of the Fβ measure?
Anonymous Quiz
18%
To ignore Recall completely
82%
To weight the importance of Precision vs Recall
0%
To focus only on Precision
0%
To measure time complexity
❤1
What is a key characteristic of laboratory-based IR evaluation?
Anonymous Quiz
50%
It involves real users performing tasks
30%
It uses controlled test collections
20%
It requires internet connectivity
0%
It focuses on mobile devices
What is the role of the evaluation module in the Cranfield paradigm?
Anonymous Quiz
27%
To index documents
73%
To compare results against relevance judgments
0%
To collect user feedback
0%
To design the user interface
How are reusable test collections beneficial?
Anonymous Quiz
9%
They are cheap to create
82%
They allow comparison of different systems
9%
They never become outdated
0%
They require no maintenance
What is the main advantage of binary relevance judgments?
Anonymous Quiz
0%
They capture nuanced relevance levels
18%
They make evaluation simpler
82%
They are more accurate than graded judgments
0%
They require less human effort
What does Precision focus on?
Anonymous Quiz
25%
The quantity of retrieved documents
50%
The quality of retrieved documents
8%
The speed of retrieval
17%
The diversity of sources