Add Gradio demo

app.py

@@ -0,0 +1,152 @@
+import gradio as gr
+from gr_nlp_toolkit import Pipeline
+
+# Author: Lefteris Loukas
+# Date: August 2024
+# Description: A Gradio interface for the Grεεk NLP Toolkit, which includes Greeklish to Greek conversion, dependency parsing, part-of-speech tagging, and named entity recognition.
+# Point-of-Contact: http://nlp.cs.aueb.gr/
+
+# Initialize Pipelines
+nlp_pos_ner_dp_with_g2g = Pipeline("pos,ner,dp,g2g")
+
+G2G_PLACEHOLDER = "e.g., H thessaloniki einai mia poli sti boreia ellada"
+NER_PLACEHOLDER = "e.g., Η Αργεντινή κέρδισε το Παγκόσμιο Κύπελλο το 2022"
+POS_PLACEHOLDER = "e.g., Μου αρέσει να διαβάζω τα post του Andrew Ng στο Twitter."
+DP_PLACEHOLDER = "e.g., Προτιμώ την πρωινή πτήση από την Αθήνα στη Θεσσαλονίκη."
+
+
+def greeklish_to_greek(text):
+    if not text:
+        text = G2G_PLACEHOLDER[5:]
+
+    doc = nlp_pos_ner_dp_with_g2g(text)
+    return " ".join([token.text for token in doc.tokens])
+
+
+def process_text(text, task):
+    doc = nlp_pos_ner_dp_with_g2g(text)
+    task_mapping = {
+        "dp": lambda token: f"Text: {token.text}, Head: {token.head}, Deprel: {token.deprel}",
+        "pos": lambda token: f"Text: {token.text}, UPOS: {token.upos}, Feats: {token.feats}",
+        "ner": lambda token: f"Text: {token.text}, NER: {token.ner}",
+    }
+    return "\n".join([task_mapping[task](token) for token in doc.tokens])
+
+
+def dependency_parsing(text):
+    if not text:
+        text = DP_PLACEHOLDER[5:]
+    return process_text(text, "dp")
+
+
+def pos_tagging(text):
+    if not text:
+        text = POS_PLACEHOLDER[5:]
+    return process_text(text, "pos")
+
+
+def named_entity_recognition(text):
+    if not text:
+        text = NER_PLACEHOLDER[5:]
+
+    return process_text(text, "ner")
+
+
+# Define the Gradio interface
+def create_demo():
+    theme = gr.themes.Soft()
+    with gr.Blocks(theme=theme) as demo:
+        gr.Markdown(
+            """
+        # The Grεεk NLP Toolkit 🇬🇷
+        An open-source toolkit for state-of-the-art natural language processing in Greek.
+        
+        ## Key Features:
+        - Greeklish to Greek Conversion (G2G)
+        - Dependency Parsing (DP)
+        - Part-of-Speech (POS) Tagging
+        - Named Entity Recognition (NER)
+        """
+        )
+
+        with gr.Tab("Greeklish to Greek"):
+            g2g_input = gr.Textbox(
+                label="Enter Greeklish text",
+                placeholder=G2G_PLACEHOLDER,
+            )
+            g2g_output = gr.Textbox(label="Greek text")
+            g2g_button = gr.Button("Submit")
+            g2g_button.click(greeklish_to_greek, inputs=g2g_input, outputs=g2g_output)
+
+        with gr.Tab("Dependency Parsing"):
+            dp_input = gr.Textbox(
+                label="Enter text",
+                placeholder=DP_PLACEHOLDER,
+            )
+            dp_output = gr.Textbox(label="Dependency Parsing annotations")
+            dp_button = gr.Button("Submit")
+            dp_button.click(dependency_parsing, inputs=dp_input, outputs=dp_output)
+
+        with gr.Tab("Part-of-Speech Tagging"):
+            pos_input = gr.Textbox(
+                label="Enter text",
+                placeholder=POS_PLACEHOLDER,
+            )
+            pos_output = gr.Textbox(label="POS Tagging annotations")
+            pos_button = gr.Button("Submit")
+            pos_button.click(pos_tagging, inputs=pos_input, outputs=pos_output)
+
+        with gr.Tab("Named Entity Recognition"):
+            ner_input = gr.Textbox(
+                label="Enter text",
+                placeholder=NER_PLACEHOLDER,
+            )
+            ner_output = gr.Textbox(label="NER annotations")
+            ner_button = gr.Button("Submit")
+            ner_button.click(
+                named_entity_recognition, inputs=ner_input, outputs=ner_output
+            )
+
+        gr.Markdown(
+            """
+
+        ## Installation
+        
+        The Grεεk NLP toolkit is available on PyPI for Python 3.9+:
+        
+        ```sh
+        pip install gr-nlp-toolkit
+        ```
+
+        Visit the [GitHub repository]("https://github.com/nlpaueb/gr-nlp-toolkit") for more information, such as documentation and full usage examples.
+
+        ## About the Project
+        
+        The Greek NLP Toolkit is the state-of-the-art natural language processing toolkit for modern Greek, [developed by the Natural Language Processing Group at the Athens University of Economics and Business](http://nlp.cs.aueb.gr/).
+        It supports named entity recognition, part-of-speech tagging, morphological tagging, dependency parsing, 
+        and Greeklish to Greek conversion. This project is part of ongoing research aimed at advancing Greek language processing capabilities.
+        <br>
+        <br>    
+
+        <div style="text-align: center;">
+            <a href="https://github.com/nlpaueb/gr-nlp-toolkit">
+                <img src="https://img.shields.io/badge/GitHub-Repository-181717?logo=github" alt="GitHub" style="display: block; margin: auto;">
+            </a>
+            <a href="https://github.com/nlpaueb/gr-nlp-toolkit">https://github.com/nlpaueb/gr-nlp-toolkit</a>
+        </div>
+
+        
+
+        © 2024 The Greek NLP Toolkit. All rights reserved.
+        """
+        )
+
+    return demo
+
+
+# Launch the Gradio interface
+if __name__ == "__main__":
+    demo = create_demo()
+
+    DEPLOY_TO_THE_PUBLIC_FLAG = False
+    demo.launch(share=DEPLOY_TO_THE_PUBLIC_FLAG)