7 Reasons to Hire NLP Annotators for NLP Labeling Projects

When the user experiences quite a positive and smooth interaction with a service through chatbots or other devices-assistant kudos should go to NLP labeling specialists. It is they who made it possible to ensure smart and effective communication between a human and a computer, so to speak.

If you think about this, annotation is not that much different from teaching a language. Though the recipient is not a human being, but a machine. Natural language annotation for machine learning should be understood as training raw data to be able to recognize patterns required by the projects. The labeled data pieces are then utilized to “teach” the NLP models to be fully responsive to the project’s requirements.

Robots are starting to perform excellent functions assisting customers in solving their issues. However, the robots still need humans to train their learning algorithms to read through the training data body and build their reactions accordingly. To annotate a text an NLP annotator expert will be needed. The labeling process is critical for ML algorithms’ prediction functions. 

natural language annotation for machine learning

The annotation process is very complex and and can become very staggering in terms of trying to handle everything (quality of NLP data annotation, progression and modifications within the feature choices, data labelers management, training of the newcomers, success measurement, and analytics) without a specialist who owns deep expertise in NLP annotations and NLP annotation tool proper choices.

Let’s read further to reveal more benefits of hiring NLP text annotation specialists for NLP labeling projects.

Data Labeling for NLP and How It Differs from Other Kinds of Data Labeling

It’s been a bit mentioned before that it is impossible to just provide loads of data and expect the machine to be familiar with it alongside being able to respond with relevant predictions. A text annotation NLP requires data to be delivered assuring further inferencing and recognition. 

Consistent metadata added to the body of data will do the trick. Metadata tags (NLP data tagging) that markup elements will be pretty much what the process is called – input annotation. To make it work (with full recognition from the system) it must be accurate. Highly experienced NLP annotators are promised to deliver that accuracy and relevance.

A text annotation NLP ensures algorithms to comprehend, develop a conversation with clients, and produce readable text for a plethora of apps be it a chatbot, or a product review analysis. 

Let’s have a look at some text labeling examples:

  • Parts of speech

Tagging parts of speech allows building much more essential  and relevant conversations as well as contributing to natural language annotation, understanding the human language close to its natural representation.

  • NER (named entity recognition)

This NLP tagging text activity is comparable to speech tagging yet its focus is on categorizing text elements (names, places, time, social situation, etc). Connecting entities to the context peculiarities guarantees that the device acquires a much deeper understanding of the text.   

  • Classification

Text classification into defined categories, outlined by the individual project requirements by the means of NLP multi label classification dataset.

  • Audio annotation

Audio annotation is the audio data transcription into natural language for the device to make sense of it delivering the gist exactly. 

NLP goes together with NLU (natural language understanding), though they are totally different concepts. Yet both are needed for the machines to process information smoothly and with the most intricate context detail possible.

NLP will process literal text based on the categories tagged (grammar, structure, point of view, etc.). NLU will set inferencing and processing of what goes beyond the literal text meaning.

It is believed that native speakers might utilize much stronger cultural and mental components to help the device produce the text that corresponds to all the regional factors. Yet, with the world’s global talent access, there is a big chance to hire a foreign expert who will still be able to conquer confusion and avoid cultural misunderstanding, in terms of annotation NLP. 

The Process of Building NLP Algorithms

The proper NLP functioning is based on NLP algorithms and Deep Learning. Deep learning absorbs raw data (voice or text) and transforms it into structured and ready-to-use data information. The NLP tech tools (that do need a masterful hand to handle those for critical accuracy by utilizing the cutting-edge NLP tagging tools) elicit the meaning by breaking the language pieces into separate word units, getting the context from how these units are related. After, NLP indexing segments data into certain categories, ensuring high levels of accuracy. 

Text vectorization lets NLP tools turn the text into data that is comprehensive for the machine, then the NLP algorithms are provided with training data and relevant reactions to it so that to “teach” devices to build correlations between inputs and appropriate outputs. When the algorithms are built with critical precision then the devices will be able to develop and own “recognition banks” and rapidly define the features to respond to the information and make relevant predictions.

To build a precisely accurate NLP algorithm an impressive bulk of training data is required to generate. To make sure that happens with the expected effectiveness and further high-quality outcomes, the companies consider the following approaches:

  • Machine learning – when it is possible to automate labeling processes
  • Annotation NLP specialists – no automation is possible and the machine has not yet developed the needed level of confidence.

Going with NLP specialists businesses indeed secure the position of the product with accuracy and relevant interpretation of the processed information. That accuracy and comprehension are keys for the deal to be sealed and the revenues to flow.

How to hire nlp annotator

3 Different Types of Data Annotation for NLP

It’s been already learned that devices ML modules are packed with a lot of training data to recognize various aspects of linguistic annotation peculiarities. When the data is annotated properly the devices can mimic human conversations at a very high level of corresponding, producing highly-profitable communicative outcomes. If the annotated data is inadequately done the responses will be misleading and, simply dumb. This is where the need for a true annotation expert stems from. These professionals will ensure proper NLP sequence tagging by implementing the most common  NLP annotation data types techniques.

Here is the list of the most common annotation data types:

#1 Utterances 

This type allows long sentences to be split into the smallest speech piece which is known in language studies as utterance. The devices will not be able to process long thoughts without dividing them into smaller units that will still deliver a complete thought and be comprehensive for the ML model training.

For example: Who came to the meeting?

By the means of NLP sequence tagging, the utterance will be transmitted comprehensively to the machine.

#2 Intents

This type of data annotation is responsible for drawing the appropriate responses (predictions) to the utterance being used by the client. 

For example: How long will it take?

The machine learning model will (if annotated correctly) recognize it as a “timing query” and choose the appropriate reaction from its trained bank of knowledge. 

#3 Entities

Entities are the crucial NLP training data structures. They are utilized to define the objects (tagging of the keywords, name recognition, parts of speech identification) in the utterances. 

For example: Here is a Big Ben clock tower.

All these objects will be identified by the model without any complication due to adequate labeling. 

The techniques’ complexity grows exponentially to the project’s complexity and requires thorough supervision from the annotation specialist who has strong NLP labeling expertise.

7 Reasons to Hire NLP Annotators

Some advantages of dealing with an annotation expert have been mentioned throughout the text. Here it is sort of a profound summary of what businesses get when opting for hiring such a specialist for NLP labeling projects. 

Strong NLP annotation expertise 

When in need of NLP annotation services, it is always important to get an expert on board who is NLP annotation savvy and does not need to be trained in outsource text annotation before assisting with the project. Of course, NLP annotation specialists constantly upgrade their knowledge and hone their skills, but it goes notwithstanding the projects. Getting down to business, the experts have a clear picture of how things should be done, and what flaws have to be fixed. This is true especially when it comes to outsourcing an annotation expert since the BPO agency will for sure assign the specialist who will meet your project requirements exactly. 

Proven experience

Hiring a professional who is not new to the craft is precious when it comes to teaching machines to understand and communicate with people. Successful cases in the portfolio are also proof of the efficiency of the specialist but they have not been collected instantly. When there is a solid experience involved then there is a decent chance to ensure adequate and accurate annotation preventing any confusion that might divert the client from interacting with a product or service. A sharp eye birthed by years of annotation activity enables the professional to spot a minor glitch and fix it instantly.

Accuracy of delivery

An expert in the field will know how to deliver a top level of accuracy for the labeled data. High precision is crucial for NLP labeling since it will ensure the building of a strong and long-lasting bond with clients. Since, let’s say,  every time they’ll try to get in touch with your company’s bot and each time they will be heard, understood, and served well, they will tend to come back and bring a couple of friends along.

Fully secure approach

And it is mostly true when hiring an NLP annotation specialist through a reliable BPO provider, that the data the tech labeling specialist will be dealing with will not be ill-used or transmitted to an unwanted third party, as well as simply will not get lost because of ignorance or lack of expertise from the side of the professional.

Scalability of NLP data annotation

The success of the project predetermines its scalability and modifications within the different levels of tech involvement. Data annotation for NLP also undergoes these upgrading processes and requires proficient flexibility and relevant changes implementations that align with general requirements set in front of the business. Annotation complexity expands together with the product features expansion and requires expert control and management of the necessary algorithm editions.

Annotation and data tagging speed and efficiency

These reasons derive from all the positive aspects described above. Proven by successful cases expertise, solid experience in confidential management training of data, and accurate approach to accomplishing the tasks makes it possible to reduce time-to-market frames and let the product start gaining momentum alongside competitive edge, conquering the consumers’ souls with its efficiency and smooth cooperation matters.

Maintenance and support

Hiring an expert ensures not only having the job done, but also provides constant management and support if some immediate fixes are needed, or the concept of the product changes, or the owner wants to implement a specific linguistic arsenal for the device to relevantly respond to and with. It might not be a very good idea to have an NLP labeling project completed and maintained by different specialists. The company should stick to building a long-term professional relationship with the expert who has started dealing with the product from its initial stages.

NLP data labeling needs supervision of a top-tech professional, familiar with AI and Machine learning. To develop such expertise within the company’s team will take time, but the competitive component does not permit much. 

outsource nlp annotation

Mobilunity-BPO Is a Reliable Provider of NLP Labeling Services 

Outsourcing processes to a high-profile BPO agency is a smart decision to make. Mobilunity-BPO is a Ukraine-based company that offers deep experience in data annotation, and NLP labeling in particular. More than 10 years of excellent experience in the international business arena, famous for delivering high-quality business process outsourcing services for projects of different complexity levels. 

A rich talent pool of business and tech specialists (200,000+) with profound expertise in IT and business principles, the latest tech tendencies awareness, and huge comprehension and respect for western values is available to Mobilunity to help businesses solve their staffing and workflow needs. 

Such companies as i-doit, XPLG, Zenchef, Paidy, Camptocamp, BYG-E, ICUC, etc. have already experienced the level of reliability and professional dedication that Mobilunity-BPO delivers for its clients at very affordable, transparent, and fair pricing.

Mobilunity-BPO offers to hire dedicated labelers for long-term project cooperation this way the annotation specialist will have more opportunities to learn the company’s AI better and build a stronger connection with a team. If this option might not align with the business needs, then it is possible to opt for managed services where there is a whole team of labelers working on the project simultaneously (best-suite for short-term projects with a specific dataset labeling).  

Data Annotation Services Offered by Mobilunity-BPO

The Ukrainian IT pool is well-developed and keeps on upgrading at an impressive speed. Global businesses trust IT companies with their projects, knowing about Ukrainian professional efficiency, flexibility, access to the newest technology, high levels of security assurance, and outstanding delivery of outcomes. On top of all the benefits, the pricing requirements are much lower in comparison with what western countries charge. Mobilunity is a prominent representative of the top-tech Ukrainian companies that have earned a strong image around the globe and keeps on going with providing exceptional services.


NLP annotators are critical specialists to ensure accurate NLP labeling for businesses to maintain the product’s quality, retain clients, and attract new ones. When the machines are trained to adequately read through the pieces of information they receive and form relevant responses to it, then there is going to be no confusion and smooth client-business communication will be assured.

Planning to hire an NLP annotator to ensure adequate data labeling to prevent client-robot communication misunderstanding? Contact us!