[DOC] add text experiment in start/exp.rst (#139)

* [DOC] add text experiment in start/exp.rst

* [DOC] replace the text labeled picture and modify the corresponding discription in start/exp.rst

docs/start/exp.rst

@@ -53,11 +53,51 @@ M5 2.066 +/- 0.424 2.116 +/- 0.472 2.
 CIFAR10 0.619 +/- 0.138 0.585 +/- 0.056 0.715 +/- 0.075
 ==================== ==================== ================================= =================================
 
-
-
 Text Experiment
 ====================
 
+Datasets
+------------------
+We conducted experiments on the widely used text benchmark dataset: `20-newsgroup <http:https://qwone.com/~jason/20Newsgroups/>`_.
+20-newsgroup is a renowned text classification benchmark with a hierarchical structure, featuring 5 superclasses {comp, rec, sci, talk, misc}.
+
+In the submitting stage, we enumerated all combinations of three superclasses from the five available, randomly sampling 50% of each combination from the training set to create datasets for 50 uploaders.
+
+In the deploying stage, we considered all combinations of two superclasses out of the five, selecting all data for each combination from the testing set as a test dataset for one user. This resulted in 10 users.
+The user's own training data was generated using the same sampling procedure as the user test data, despite originating from the training dataset.
+
+Model training comprised two parts: the first part involved training a tfidf feature extractor, and the second part used the extracted text feature vectors to train a naive Bayes classifier.
+
+Our experiments comprises two components:
+
+* ``test_unlabeled`` is designed to evaluate performance when users possess only testing data, searching and reusing learnware available in the market.
+* ``test_labeled`` aims to assess performance when users have both testing and limited training data, searching and reusing learnware directly from the market instead of training a model from scratch. This helps determine the amount of training data saved for the user.
+
+Results
+----------------
+
+* ``test_unlabeled``:
+
+The accuracy of search and reuse is presented in the table below:
+
+==================== ================================= =================================
+ Top-1 Performance Job Selector Reuse Average Ensemble Reuse
+==================== ================================= =================================
+ 0.859 +/- 0.051 0.844 +/- 0.053 0.858 +/- 0.051
+==================== ================================= =================================
+
+* ``test_labeled``:
+
+We present the change curves in classification error rates for both the user's self-trained model and the multiple learnware reuse(EnsemblePrune), showcasing their performance on the user's test data as the user's training data increases. The average results across 10 users are depicted below:
+
+.. image:: ../_static/img/text_example_labeled_curves.png
+ :width: 300
+ :height: 200
+ :alt: Text Limited Labeled Data
+
+
+From the figure above, it is evident that when the user's own training data is limited, the performance of multiple learnware reuse surpasses that of the user's own model. As the user's training data grows, it is expected that the user's model will eventually outperform the learnware reuse. This underscores the value of reusing learnware to significantly conserve training data and achieve superior performance when user training data is limited.
+
 
 Image Experiment
 ====================
@@ -67,4 +107,13 @@ Get Start Examples
 =========================
 Examples for `PFS, M5` and `CIFAR10` are available at [xxx]. You can run { main.py } directly to reproduce related experiments.
 The test code is mainly composed of three parts, namely data preparation (optional), specification generation and market construction, and search test.
-You can load data prepared by as and skip the data preparation step.
+You can load data prepared by as and skip the data preparation step.
+
+
+Examples for the `20-newsgroup` dataset are available at [examples/dataset_text_workflow].
+We utilize the `fire` module to construct our experiments. You can execute the experiment with the following commands:
+
+* `python main.py prepare_market`: Prepares the market.
+* `python main.py test_unlabeled`: Executes the test_unlabeled experiment; the results will be printed in the terminal.
+* `python main.py test_labeled`: Executes the test_labeled experiment; result curves will be automatically saved in the `figs` directory.
+* Additionally, you can use `python main.py test_unlabeled True` to combine steps 1 and 2. The same approach applies to running test_labeled directly.