{"id":7767,"date":"2025-11-26T18:40:16","date_gmt":"2025-11-26T18:40:16","guid":{"rendered":"https:\/\/uplatz.com\/blog\/?p=7767"},"modified":"2025-11-26T18:40:16","modified_gmt":"2025-11-26T18:40:16","slug":"artificial-neural-networks-anns-explained","status":"publish","type":"post","link":"https:\/\/uplatz.com\/blog\/artificial-neural-networks-anns-explained\/","title":{"rendered":"Artificial Neural Networks (ANNs) Explained"},"content":{"rendered":"<h1 data-start=\"696\" data-end=\"763\"><strong data-start=\"698\" data-end=\"763\">Artificial Neural Networks (ANNs): A Complete Practical Guide<\/strong><\/h1>\n<p data-start=\"765\" data-end=\"1069\">Artificial Neural Networks (ANNs) form the foundation of modern artificial intelligence. They power voice assistants, recommendation systems, fraud detection engines, medical diagnosis tools, and many smart applications we use every day. ANNs learn from data in a way that is inspired by the human brain.<\/p>\n<p data-start=\"1071\" data-end=\"1156\">They are flexible, powerful, and capable of modeling highly complex patterns in data.<\/p>\n<p data-start=\"1158\" data-end=\"1447\"><strong data-start=\"1158\" data-end=\"1267\">\ud83d\udc49 To master Artificial Neural Networks and real-world Deep Learning projects, explore our courses below:<\/strong><br data-start=\"1267\" data-end=\"1270\" \/>\ud83d\udd17 <strong data-start=\"1273\" data-end=\"1291\">Internal Link:<\/strong>\u00a0<a href=\"https:\/\/uplatz.com\/course-details\/data-science-with-python\/268\">https:\/\/uplatz.com\/course-details\/data-science-with-python\/268<\/a><br data-start=\"1346\" data-end=\"1349\" \/>\ud83d\udd17 <strong data-start=\"1352\" data-end=\"1375\">Outbound Reference:<\/strong> <a class=\"decorated-link\" href=\"https:\/\/scikit-learn.org\/stable\/modules\/neural_networks_supervised.html\" target=\"_new\" rel=\"noopener\" data-start=\"1376\" data-end=\"1447\">https:\/\/scikit-learn.org\/stable\/modules\/neural_networks_supervised.html<\/a><\/p>\n<hr data-start=\"1449\" data-end=\"1452\" \/>\n<h2 data-start=\"1454\" data-end=\"1507\"><strong data-start=\"1457\" data-end=\"1507\">1. What Is an Artificial Neural Network (ANN)?<\/strong><\/h2>\n<p data-start=\"1509\" data-end=\"1691\">An Artificial Neural Network is a <strong data-start=\"1543\" data-end=\"1600\">machine learning model inspired by biological neurons<\/strong>. It consists of layers of connected nodes (neurons) that process information step by step.<\/p>\n<p data-start=\"1693\" data-end=\"1709\">In simple words:<\/p>\n<blockquote data-start=\"1711\" data-end=\"1802\">\n<p data-start=\"1713\" data-end=\"1802\">ANNs learn patterns from data by passing information through layers of connected neurons.<\/p>\n<\/blockquote>\n<p data-start=\"1804\" data-end=\"1816\">Each neuron:<\/p>\n<ul data-start=\"1817\" data-end=\"1925\">\n<li data-start=\"1817\" data-end=\"1835\">\n<p data-start=\"1819\" data-end=\"1835\">Receives input<\/p>\n<\/li>\n<li data-start=\"1836\" data-end=\"1856\">\n<p data-start=\"1838\" data-end=\"1856\">Applies a weight<\/p>\n<\/li>\n<li data-start=\"1857\" data-end=\"1872\">\n<p data-start=\"1859\" data-end=\"1872\">Adds a bias<\/p>\n<\/li>\n<li data-start=\"1873\" data-end=\"1925\">\n<p data-start=\"1875\" data-end=\"1925\">Passes the result through an activation function<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1927\" data-end=\"1989\">ANNs adjust these weights during training to improve accuracy.<\/p>\n<hr data-start=\"1991\" data-end=\"1994\" \/>\n<h2 data-start=\"1996\" data-end=\"2053\"><strong data-start=\"1999\" data-end=\"2053\">2. Why Artificial Neural Networks Are So Important<\/strong><\/h2>\n<p data-start=\"2055\" data-end=\"2121\">ANNs solve problems that are very hard for traditional algorithms.<\/p>\n<p data-start=\"2123\" data-end=\"2150\">They are used because they:<\/p>\n<p data-start=\"2152\" data-end=\"2344\">\u2705 Learn complex non-linear relationships<br data-start=\"2192\" data-end=\"2195\" \/>\u2705 Work well with large data<br data-start=\"2222\" data-end=\"2225\" \/>\u2705 Adapt to new patterns<br data-start=\"2248\" data-end=\"2251\" \/>\u2705 Generalise well<br data-start=\"2268\" data-end=\"2271\" \/>\u2705 Improve automatically with experience<br data-start=\"2310\" data-end=\"2313\" \/>\u2705 Power deep learning systems<\/p>\n<p data-start=\"2346\" data-end=\"2410\">From speech recognition to medical imaging, ANNs are everywhere.<\/p>\n<hr data-start=\"2412\" data-end=\"2415\" \/>\n<h2 data-start=\"2417\" data-end=\"2452\"><strong data-start=\"2420\" data-end=\"2452\">3. Basic Structure of an ANN<\/strong><\/h2>\n<p data-start=\"2454\" data-end=\"2500\">Every ANN contains three main types of layers.<\/p>\n<hr data-start=\"2502\" data-end=\"2505\" \/>\n<h3 data-start=\"2507\" data-end=\"2530\"><strong data-start=\"2511\" data-end=\"2530\">3.1 Input Layer<\/strong><\/h3>\n<ul data-start=\"2531\" data-end=\"2589\">\n<li data-start=\"2531\" data-end=\"2552\">\n<p data-start=\"2533\" data-end=\"2552\">Receives raw data<\/p>\n<\/li>\n<li data-start=\"2553\" data-end=\"2589\">\n<p data-start=\"2555\" data-end=\"2589\">Each node represents one feature<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2591\" data-end=\"2599\">Example:<\/p>\n<ul data-start=\"2600\" data-end=\"2641\">\n<li data-start=\"2600\" data-end=\"2607\">\n<p data-start=\"2602\" data-end=\"2607\">Age<\/p>\n<\/li>\n<li data-start=\"2608\" data-end=\"2618\">\n<p data-start=\"2610\" data-end=\"2618\">Income<\/p>\n<\/li>\n<li data-start=\"2619\" data-end=\"2641\">\n<p data-start=\"2621\" data-end=\"2641\">Pixels of an image<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2643\" data-end=\"2646\" \/>\n<h3 data-start=\"2648\" data-end=\"2673\"><strong data-start=\"2652\" data-end=\"2673\">3.2 Hidden Layers<\/strong><\/h3>\n<ul data-start=\"2674\" data-end=\"2779\">\n<li data-start=\"2674\" data-end=\"2707\">\n<p data-start=\"2676\" data-end=\"2707\">Perform internal computations<\/p>\n<\/li>\n<li data-start=\"2708\" data-end=\"2728\">\n<p data-start=\"2710\" data-end=\"2728\">Extract patterns<\/p>\n<\/li>\n<li data-start=\"2729\" data-end=\"2747\">\n<p data-start=\"2731\" data-end=\"2747\">Transform data<\/p>\n<\/li>\n<li data-start=\"2748\" data-end=\"2779\">\n<p data-start=\"2750\" data-end=\"2779\">Can have one or many layers<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2781\" data-end=\"2817\">More hidden layers = deeper network.<\/p>\n<hr data-start=\"2819\" data-end=\"2822\" \/>\n<h3 data-start=\"2824\" data-end=\"2848\"><strong data-start=\"2828\" data-end=\"2848\">3.3 Output Layer<\/strong><\/h3>\n<ul data-start=\"2849\" data-end=\"2986\">\n<li data-start=\"2849\" data-end=\"2878\">\n<p data-start=\"2851\" data-end=\"2878\">Produces final prediction<\/p>\n<\/li>\n<li data-start=\"2879\" data-end=\"2986\">\n<p data-start=\"2881\" data-end=\"2892\">Can output:<\/p>\n<ul data-start=\"2895\" data-end=\"2986\">\n<li data-start=\"2895\" data-end=\"2920\">\n<p data-start=\"2897\" data-end=\"2920\">A number (regression)<\/p>\n<\/li>\n<li data-start=\"2923\" data-end=\"2957\">\n<p data-start=\"2925\" data-end=\"2957\">A class label (classification)<\/p>\n<\/li>\n<li data-start=\"2960\" data-end=\"2986\">\n<p data-start=\"2962\" data-end=\"2986\">Multiple probabilities<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr data-start=\"2988\" data-end=\"2991\" \/>\n<h2 data-start=\"2993\" data-end=\"3038\"><strong data-start=\"2996\" data-end=\"3038\">4. How ANNs Learn (Simple Explanation)<\/strong><\/h2>\n<p data-start=\"3040\" data-end=\"3094\">ANNs learn using a process called <strong data-start=\"3074\" data-end=\"3093\">backpropagation<\/strong>.<\/p>\n<hr data-start=\"3096\" data-end=\"3099\" \/>\n<h3 data-start=\"3101\" data-end=\"3129\"><strong data-start=\"3105\" data-end=\"3129\">Step 1: Forward Pass<\/strong><\/h3>\n<p data-start=\"3130\" data-end=\"3162\">Data flows from input to output.<\/p>\n<hr data-start=\"3164\" data-end=\"3167\" \/>\n<h3 data-start=\"3169\" data-end=\"3201\"><strong data-start=\"3173\" data-end=\"3201\">Step 2: Loss Calculation<\/strong><\/h3>\n<p data-start=\"3202\" data-end=\"3253\">The prediction is compared with the correct answer.<\/p>\n<hr data-start=\"3255\" data-end=\"3258\" \/>\n<h3 data-start=\"3260\" data-end=\"3289\"><strong data-start=\"3264\" data-end=\"3289\">Step 3: Backward Pass<\/strong><\/h3>\n<p data-start=\"3290\" data-end=\"3335\">The error flows backward through the network.<\/p>\n<hr data-start=\"3337\" data-end=\"3340\" \/>\n<h3 data-start=\"3342\" data-end=\"3371\"><strong data-start=\"3346\" data-end=\"3371\">Step 4: Weight Update<\/strong><\/h3>\n<p data-start=\"3372\" data-end=\"3420\">Weights get adjusted using <strong data-start=\"3399\" data-end=\"3419\">gradient descent<\/strong>.<\/p>\n<hr data-start=\"3422\" data-end=\"3425\" \/>\n<h3 data-start=\"3427\" data-end=\"3449\"><strong data-start=\"3431\" data-end=\"3449\">Step 5: Repeat<\/strong><\/h3>\n<p data-start=\"3450\" data-end=\"3503\">This process continues until the error becomes small.<\/p>\n<p data-start=\"3505\" data-end=\"3542\">This is how ANNs learn from mistakes.<\/p>\n<hr data-start=\"3544\" data-end=\"3547\" \/>\n<h2 data-start=\"3549\" data-end=\"3587\"><strong data-start=\"3552\" data-end=\"3587\">5. Activation Functions in ANNs<\/strong><\/h2>\n<p data-start=\"3589\" data-end=\"3636\">Activation functions decide how neurons behave.<\/p>\n<p data-start=\"3638\" data-end=\"3658\">Common ones include:<\/p>\n<hr data-start=\"3660\" data-end=\"3663\" \/>\n<h3 data-start=\"3665\" data-end=\"3703\"><strong data-start=\"3669\" data-end=\"3701\">ReLU (Rectified Linear Unit)<\/strong><\/h3>\n<p data-start=\"3704\" data-end=\"3741\">Most widely used. Fast and efficient.<\/p>\n<hr data-start=\"3743\" data-end=\"3746\" \/>\n<h3 data-start=\"3748\" data-end=\"3765\"><strong data-start=\"3752\" data-end=\"3763\">Sigmoid<\/strong><\/h3>\n<p data-start=\"3766\" data-end=\"3801\">Used in probability output systems.<\/p>\n<hr data-start=\"3803\" data-end=\"3806\" \/>\n<h3 data-start=\"3808\" data-end=\"3822\"><strong data-start=\"3812\" data-end=\"3820\">Tanh<\/strong><\/h3>\n<p data-start=\"3823\" data-end=\"3848\">Strong for centered data.<\/p>\n<hr data-start=\"3850\" data-end=\"3853\" \/>\n<h3 data-start=\"3855\" data-end=\"3872\"><strong data-start=\"3859\" data-end=\"3870\">Softmax<\/strong><\/h3>\n<p data-start=\"3873\" data-end=\"3908\">Used in multi-class classification.<\/p>\n<hr data-start=\"3910\" data-end=\"3913\" \/>\n<h2 data-start=\"3915\" data-end=\"3960\"><strong data-start=\"3918\" data-end=\"3960\">6. Types of Artificial Neural Networks<\/strong><\/h2>\n<p data-start=\"3962\" data-end=\"3996\">There are many variations of ANNs.<\/p>\n<hr data-start=\"3998\" data-end=\"4001\" \/>\n<h3 data-start=\"4003\" data-end=\"4042\"><strong data-start=\"4007\" data-end=\"4042\">6.1 Feedforward Neural Networks<\/strong><\/h3>\n<ul data-start=\"4043\" data-end=\"4111\">\n<li data-start=\"4043\" data-end=\"4074\">\n<p data-start=\"4045\" data-end=\"4074\">Data flows in one direction<\/p>\n<\/li>\n<li data-start=\"4075\" data-end=\"4087\">\n<p data-start=\"4077\" data-end=\"4087\">No loops<\/p>\n<\/li>\n<li data-start=\"4088\" data-end=\"4111\">\n<p data-start=\"4090\" data-end=\"4111\">Most basic ANN type<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4113\" data-end=\"4116\" \/>\n<h3 data-start=\"4118\" data-end=\"4157\"><strong data-start=\"4122\" data-end=\"4157\">6.2 Multilayer Perceptron (MLP)<\/strong><\/h3>\n<ul data-start=\"4158\" data-end=\"4227\">\n<li data-start=\"4158\" data-end=\"4184\">\n<p data-start=\"4160\" data-end=\"4184\">Multiple hidden layers<\/p>\n<\/li>\n<li data-start=\"4185\" data-end=\"4227\">\n<p data-start=\"4187\" data-end=\"4227\">Classic supervised deep learning model<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4229\" data-end=\"4232\" \/>\n<h3 data-start=\"4234\" data-end=\"4273\"><strong data-start=\"4238\" data-end=\"4273\">6.3 Deep Neural Networks (DNNs)<\/strong><\/h3>\n<ul data-start=\"4274\" data-end=\"4322\">\n<li data-start=\"4274\" data-end=\"4296\">\n<p data-start=\"4276\" data-end=\"4296\">Many hidden layers<\/p>\n<\/li>\n<li data-start=\"4297\" data-end=\"4322\">\n<p data-start=\"4299\" data-end=\"4322\">Higher learning power<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4324\" data-end=\"4327\" \/>\n<p data-start=\"4329\" data-end=\"4371\">Later in your series, you will also cover:<\/p>\n<ul data-start=\"4372\" data-end=\"4416\">\n<li data-start=\"4372\" data-end=\"4380\">\n<p data-start=\"4374\" data-end=\"4380\">CNNs<\/p>\n<\/li>\n<li data-start=\"4381\" data-end=\"4389\">\n<p data-start=\"4383\" data-end=\"4389\">RNNs<\/p>\n<\/li>\n<li data-start=\"4390\" data-end=\"4399\">\n<p data-start=\"4392\" data-end=\"4399\">LSTMs<\/p>\n<\/li>\n<li data-start=\"4400\" data-end=\"4416\">\n<p data-start=\"4402\" data-end=\"4416\">Transformers<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4418\" data-end=\"4453\">All of these are special ANN types.<\/p>\n<hr data-start=\"4455\" data-end=\"4458\" \/>\n<h2 data-start=\"4460\" data-end=\"4511\"><strong data-start=\"4463\" data-end=\"4511\">7. Where Artificial Neural Networks Are Used<\/strong><\/h2>\n<hr data-start=\"4513\" data-end=\"4516\" \/>\n<h3 data-start=\"4518\" data-end=\"4537\"><strong data-start=\"4522\" data-end=\"4537\">7.1 Finance<\/strong><\/h3>\n<ul data-start=\"4538\" data-end=\"4600\">\n<li data-start=\"4538\" data-end=\"4557\">\n<p data-start=\"4540\" data-end=\"4557\">Fraud detection<\/p>\n<\/li>\n<li data-start=\"4558\" data-end=\"4581\">\n<p data-start=\"4560\" data-end=\"4581\">Algorithmic trading<\/p>\n<\/li>\n<li data-start=\"4582\" data-end=\"4600\">\n<p data-start=\"4584\" data-end=\"4600\">Credit scoring<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4602\" data-end=\"4605\" \/>\n<h3 data-start=\"4607\" data-end=\"4629\"><strong data-start=\"4611\" data-end=\"4629\">7.2 Healthcare<\/strong><\/h3>\n<ul data-start=\"4630\" data-end=\"4706\">\n<li data-start=\"4630\" data-end=\"4651\">\n<p data-start=\"4632\" data-end=\"4651\">Disease diagnosis<\/p>\n<\/li>\n<li data-start=\"4652\" data-end=\"4678\">\n<p data-start=\"4654\" data-end=\"4678\">Medical image analysis<\/p>\n<\/li>\n<li data-start=\"4679\" data-end=\"4706\">\n<p data-start=\"4681\" data-end=\"4706\">Patient risk prediction<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4708\" data-end=\"4711\" \/>\n<h3 data-start=\"4713\" data-end=\"4734\"><strong data-start=\"4717\" data-end=\"4734\">7.3 Marketing<\/strong><\/h3>\n<ul data-start=\"4735\" data-end=\"4810\">\n<li data-start=\"4735\" data-end=\"4766\">\n<p data-start=\"4737\" data-end=\"4766\">Customer behaviour analysis<\/p>\n<\/li>\n<li data-start=\"4767\" data-end=\"4793\">\n<p data-start=\"4769\" data-end=\"4793\">Recommendation engines<\/p>\n<\/li>\n<li data-start=\"4794\" data-end=\"4810\">\n<p data-start=\"4796\" data-end=\"4810\">Ad targeting<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4812\" data-end=\"4815\" \/>\n<h3 data-start=\"4817\" data-end=\"4842\"><strong data-start=\"4821\" data-end=\"4842\">7.4 Cybersecurity<\/strong><\/h3>\n<ul data-start=\"4843\" data-end=\"4914\">\n<li data-start=\"4843\" data-end=\"4866\">\n<p data-start=\"4845\" data-end=\"4866\">Intrusion detection<\/p>\n<\/li>\n<li data-start=\"4867\" data-end=\"4892\">\n<p data-start=\"4869\" data-end=\"4892\">Threat classification<\/p>\n<\/li>\n<li data-start=\"4893\" data-end=\"4914\">\n<p data-start=\"4895\" data-end=\"4914\">Malware detection<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4916\" data-end=\"4919\" \/>\n<h3 data-start=\"4921\" data-end=\"4946\"><strong data-start=\"4925\" data-end=\"4946\">7.5 Manufacturing<\/strong><\/h3>\n<ul data-start=\"4947\" data-end=\"5016\">\n<li data-start=\"4947\" data-end=\"4973\">\n<p data-start=\"4949\" data-end=\"4973\">Predictive maintenance<\/p>\n<\/li>\n<li data-start=\"4974\" data-end=\"4996\">\n<p data-start=\"4976\" data-end=\"4996\">Quality inspection<\/p>\n<\/li>\n<li data-start=\"4997\" data-end=\"5016\">\n<p data-start=\"4999\" data-end=\"5016\">Fault detection<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"5018\" data-end=\"5021\" \/>\n<h3 data-start=\"5023\" data-end=\"5052\"><strong data-start=\"5027\" data-end=\"5052\">7.6 Speech &amp; Language<\/strong><\/h3>\n<ul data-start=\"5053\" data-end=\"5117\">\n<li data-start=\"5053\" data-end=\"5073\">\n<p data-start=\"5055\" data-end=\"5073\">Voice assistants<\/p>\n<\/li>\n<li data-start=\"5074\" data-end=\"5092\">\n<p data-start=\"5076\" data-end=\"5092\">Speech-to-text<\/p>\n<\/li>\n<li data-start=\"5093\" data-end=\"5117\">\n<p data-start=\"5095\" data-end=\"5117\">Language translation<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"5119\" data-end=\"5122\" \/>\n<h2 data-start=\"5124\" data-end=\"5174\"><strong data-start=\"5127\" data-end=\"5174\">8. Advantages of Artificial Neural Networks<\/strong><\/h2>\n<p data-start=\"5176\" data-end=\"5409\">\u2705 Learns complex patterns<br data-start=\"5201\" data-end=\"5204\" \/>\u2705 Works with noisy data<br data-start=\"5227\" data-end=\"5230\" \/>\u2705 High prediction accuracy<br data-start=\"5256\" data-end=\"5259\" \/>\u2705 Scales well with big data<br data-start=\"5286\" data-end=\"5289\" \/>\u2705 Learns automatically from experience<br data-start=\"5327\" data-end=\"5330\" \/>\u2705 Can handle images, text, and signals<br data-start=\"5368\" data-end=\"5371\" \/>\u2705 Can be combined with CNNs and RNNs<\/p>\n<hr data-start=\"5411\" data-end=\"5414\" \/>\n<h2 data-start=\"5416\" data-end=\"5467\"><strong data-start=\"5419\" data-end=\"5467\">9. Limitations of Artificial Neural Networks<\/strong><\/h2>\n<p data-start=\"5469\" data-end=\"5661\">\u274c Requires large datasets<br data-start=\"5494\" data-end=\"5497\" \/>\u274c Training can be slow<br data-start=\"5519\" data-end=\"5522\" \/>\u274c High computational cost<br data-start=\"5547\" data-end=\"5550\" \/>\u274c Needs GPUs for deep models<br data-start=\"5578\" data-end=\"5581\" \/>\u274c Difficult to interpret<br data-start=\"5605\" data-end=\"5608\" \/>\u274c Risk of overfitting<br data-start=\"5629\" data-end=\"5632\" \/>\u274c Extensive tuning required<\/p>\n<hr data-start=\"5663\" data-end=\"5666\" \/>\n<h2 data-start=\"5668\" data-end=\"5706\"><strong data-start=\"5671\" data-end=\"5706\">10. Loss Functions Used in ANNs<\/strong><\/h2>\n<p data-start=\"5708\" data-end=\"5738\">Loss functions guide learning.<\/p>\n<p data-start=\"5740\" data-end=\"5760\">Common ones include:<\/p>\n<ul data-start=\"5762\" data-end=\"5867\">\n<li data-start=\"5762\" data-end=\"5797\">\n<p data-start=\"5764\" data-end=\"5797\">Mean Squared Error (Regression)<\/p>\n<\/li>\n<li data-start=\"5798\" data-end=\"5822\">\n<p data-start=\"5800\" data-end=\"5822\">Binary Cross-Entropy<\/p>\n<\/li>\n<li data-start=\"5823\" data-end=\"5852\">\n<p data-start=\"5825\" data-end=\"5852\">Categorical Cross-Entropy<\/p>\n<\/li>\n<li data-start=\"5853\" data-end=\"5867\">\n<p data-start=\"5855\" data-end=\"5867\">Hinge Loss<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5869\" data-end=\"5934\">Correct loss function selection is critical for good performance.<\/p>\n<hr data-start=\"5936\" data-end=\"5939\" \/>\n<h2 data-start=\"5941\" data-end=\"5983\"><strong data-start=\"5944\" data-end=\"5983\">11. Optimisation Algorithms in ANNs<\/strong><\/h2>\n<p data-start=\"5985\" data-end=\"6023\">Optimisers update weights efficiently.<\/p>\n<p data-start=\"6025\" data-end=\"6044\">Popular optimisers:<\/p>\n<ul data-start=\"6045\" data-end=\"6136\">\n<li data-start=\"6045\" data-end=\"6065\">\n<p data-start=\"6047\" data-end=\"6065\">Gradient Descent<\/p>\n<\/li>\n<li data-start=\"6066\" data-end=\"6103\">\n<p data-start=\"6068\" data-end=\"6103\">Stochastic Gradient Descent (SGD)<\/p>\n<\/li>\n<li data-start=\"6104\" data-end=\"6112\">\n<p data-start=\"6106\" data-end=\"6112\">Adam<\/p>\n<\/li>\n<li data-start=\"6113\" data-end=\"6124\">\n<p data-start=\"6115\" data-end=\"6124\">RMSProp<\/p>\n<\/li>\n<li data-start=\"6125\" data-end=\"6136\">\n<p data-start=\"6127\" data-end=\"6136\">Adagrad<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"6138\" data-end=\"6193\"><strong data-start=\"6138\" data-end=\"6146\">Adam<\/strong> is the most widely used in real-world systems.<\/p>\n<hr data-start=\"6195\" data-end=\"6198\" \/>\n<h2 data-start=\"6200\" data-end=\"6249\"><strong data-start=\"6203\" data-end=\"6249\">12. Overfitting and Regularisation in ANNs<\/strong><\/h2>\n<p data-start=\"6251\" data-end=\"6292\">ANNs can memorise data if not controlled.<\/p>\n<p data-start=\"6294\" data-end=\"6324\">Common regularisation methods:<\/p>\n<p data-start=\"6326\" data-end=\"6429\">\u2705 Dropout<br data-start=\"6335\" data-end=\"6338\" \/>\u2705 L1 &amp; L2 regularisation<br data-start=\"6362\" data-end=\"6365\" \/>\u2705 Early stopping<br data-start=\"6381\" data-end=\"6384\" \/>\u2705 Data augmentation<br data-start=\"6403\" data-end=\"6406\" \/>\u2705 Batch normalisation<\/p>\n<p data-start=\"6431\" data-end=\"6469\">These keep models stable and accurate.<\/p>\n<hr data-start=\"6471\" data-end=\"6474\" \/>\n<h2 data-start=\"6476\" data-end=\"6509\"><strong data-start=\"6479\" data-end=\"6509\">13. ANN Evaluation Metrics<\/strong><\/h2>\n<p data-start=\"6511\" data-end=\"6534\">For <strong data-start=\"6515\" data-end=\"6533\">classification<\/strong>:<\/p>\n<ul data-start=\"6535\" data-end=\"6597\">\n<li data-start=\"6535\" data-end=\"6547\">\n<p data-start=\"6537\" data-end=\"6547\">Accuracy<\/p>\n<\/li>\n<li data-start=\"6548\" data-end=\"6561\">\n<p data-start=\"6550\" data-end=\"6561\">Precision<\/p>\n<\/li>\n<li data-start=\"6562\" data-end=\"6572\">\n<p data-start=\"6564\" data-end=\"6572\">Recall<\/p>\n<\/li>\n<li data-start=\"6573\" data-end=\"6585\">\n<p data-start=\"6575\" data-end=\"6585\">F1 Score<\/p>\n<\/li>\n<li data-start=\"6586\" data-end=\"6597\">\n<p data-start=\"6588\" data-end=\"6597\">AUC-ROC<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"6599\" data-end=\"6618\">For <strong data-start=\"6603\" data-end=\"6617\">regression<\/strong>:<\/p>\n<ul data-start=\"6619\" data-end=\"6648\">\n<li data-start=\"6619\" data-end=\"6626\">\n<p data-start=\"6621\" data-end=\"6626\">MAE<\/p>\n<\/li>\n<li data-start=\"6627\" data-end=\"6635\">\n<p data-start=\"6629\" data-end=\"6635\">RMSE<\/p>\n<\/li>\n<li data-start=\"6636\" data-end=\"6648\">\n<p data-start=\"6638\" data-end=\"6648\">R\u00b2 Score<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"6650\" data-end=\"6653\" \/>\n<h2 data-start=\"6655\" data-end=\"6702\"><strong data-start=\"6658\" data-end=\"6702\">14. ANNs vs Traditional Machine Learning<\/strong><\/h2>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"6704\" data-end=\"7020\">\n<thead data-start=\"6704\" data-end=\"6759\">\n<tr data-start=\"6704\" data-end=\"6759\">\n<th data-start=\"6704\" data-end=\"6714\" data-col-size=\"sm\">Feature<\/th>\n<th data-start=\"6714\" data-end=\"6720\" data-col-size=\"sm\">ANN<\/th>\n<th data-start=\"6720\" data-end=\"6742\" data-col-size=\"sm\">Logistic Regression<\/th>\n<th data-start=\"6742\" data-end=\"6759\" data-col-size=\"sm\">Decision Tree<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"6817\" data-end=\"7020\">\n<tr data-start=\"6817\" data-end=\"6862\">\n<td data-start=\"6817\" data-end=\"6834\" data-col-size=\"sm\">Learning Power<\/td>\n<td data-start=\"6834\" data-end=\"6846\" data-col-size=\"sm\">Very High<\/td>\n<td data-start=\"6846\" data-end=\"6852\" data-col-size=\"sm\">Low<\/td>\n<td data-start=\"6852\" data-end=\"6862\" data-col-size=\"sm\">Medium<\/td>\n<\/tr>\n<tr data-start=\"6863\" data-end=\"6900\">\n<td data-start=\"6863\" data-end=\"6875\" data-col-size=\"sm\">Data Need<\/td>\n<td data-start=\"6875\" data-end=\"6883\" data-col-size=\"sm\">Large<\/td>\n<td data-start=\"6883\" data-end=\"6891\" data-col-size=\"sm\">Small<\/td>\n<td data-start=\"6891\" data-end=\"6900\" data-col-size=\"sm\">Small<\/td>\n<\/tr>\n<tr data-start=\"6901\" data-end=\"6941\">\n<td data-start=\"6901\" data-end=\"6920\" data-col-size=\"sm\">Interpretability<\/td>\n<td data-start=\"6920\" data-end=\"6926\" data-col-size=\"sm\">Low<\/td>\n<td data-start=\"6926\" data-end=\"6933\" data-col-size=\"sm\">High<\/td>\n<td data-start=\"6933\" data-end=\"6941\" data-col-size=\"sm\">High<\/td>\n<\/tr>\n<tr data-start=\"6942\" data-end=\"6983\">\n<td data-start=\"6942\" data-end=\"6956\" data-col-size=\"sm\">Performance<\/td>\n<td data-start=\"6956\" data-end=\"6968\" data-col-size=\"sm\">Excellent<\/td>\n<td data-start=\"6968\" data-end=\"6975\" data-col-size=\"sm\">Good<\/td>\n<td data-start=\"6975\" data-end=\"6983\" data-col-size=\"sm\">Good<\/td>\n<\/tr>\n<tr data-start=\"6984\" data-end=\"7020\">\n<td data-start=\"6984\" data-end=\"6997\" data-col-size=\"sm\">Complexity<\/td>\n<td data-start=\"6997\" data-end=\"7004\" data-col-size=\"sm\">High<\/td>\n<td data-start=\"7004\" data-end=\"7010\" data-col-size=\"sm\">Low<\/td>\n<td data-start=\"7010\" data-end=\"7020\" data-col-size=\"sm\">Medium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"7022\" data-end=\"7062\">ANNs dominate when patterns are complex.<\/p>\n<hr data-start=\"7064\" data-end=\"7067\" \/>\n<h2 data-start=\"7069\" data-end=\"7101\"><strong data-start=\"7072\" data-end=\"7101\">15. Practical ANN Example<\/strong><\/h2>\n<h3 data-start=\"7103\" data-end=\"7136\"><strong data-start=\"7107\" data-end=\"7136\">Customer Churn Prediction<\/strong><\/h3>\n<p data-start=\"7138\" data-end=\"7145\">Inputs:<\/p>\n<ul data-start=\"7146\" data-end=\"7222\">\n<li data-start=\"7146\" data-end=\"7165\">\n<p data-start=\"7148\" data-end=\"7165\">Usage frequency<\/p>\n<\/li>\n<li data-start=\"7166\" data-end=\"7180\">\n<p data-start=\"7168\" data-end=\"7180\">Complaints<\/p>\n<\/li>\n<li data-start=\"7181\" data-end=\"7200\">\n<p data-start=\"7183\" data-end=\"7200\">Payment history<\/p>\n<\/li>\n<li data-start=\"7201\" data-end=\"7222\">\n<p data-start=\"7203\" data-end=\"7222\">Contract duration<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"7224\" data-end=\"7230\">Model:<\/p>\n<ul data-start=\"7231\" data-end=\"7260\">\n<li data-start=\"7231\" data-end=\"7260\">\n<p data-start=\"7233\" data-end=\"7260\">Multilayer Perceptron (MLP)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"7262\" data-end=\"7269\">Output:<\/p>\n<ul data-start=\"7270\" data-end=\"7305\">\n<li data-start=\"7270\" data-end=\"7305\">\n<p data-start=\"7272\" data-end=\"7305\">Will the customer leave? (Yes\/No)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"7307\" data-end=\"7340\">Telecom companies use this daily.<\/p>\n<hr data-start=\"7342\" data-end=\"7345\" \/>\n<h2 data-start=\"7347\" data-end=\"7382\"><strong data-start=\"7350\" data-end=\"7382\">16. Tools Used to Build ANNs<\/strong><\/h2>\n<p data-start=\"7384\" data-end=\"7418\">The most common ANN tools include:<\/p>\n<ul data-start=\"7420\" data-end=\"7551\">\n<li data-start=\"7420\" data-end=\"7463\">\n<p data-start=\"7422\" data-end=\"7463\"><strong data-start=\"7422\" data-end=\"7463\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">TensorFlow<\/span><\/span><\/strong><\/p>\n<\/li>\n<li data-start=\"7464\" data-end=\"7507\">\n<p data-start=\"7466\" data-end=\"7507\"><strong data-start=\"7466\" data-end=\"7507\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">PyTorch<\/span><\/span><\/strong><\/p>\n<\/li>\n<li data-start=\"7508\" data-end=\"7551\">\n<p data-start=\"7510\" data-end=\"7551\"><strong data-start=\"7510\" data-end=\"7551\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">scikit-learn<\/span><\/span><\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"7553\" data-end=\"7575\">These platforms allow:<\/p>\n<ul data-start=\"7576\" data-end=\"7681\">\n<li data-start=\"7576\" data-end=\"7599\">\n<p data-start=\"7578\" data-end=\"7599\">Fast model building<\/p>\n<\/li>\n<li data-start=\"7600\" data-end=\"7620\">\n<p data-start=\"7602\" data-end=\"7620\">GPU acceleration<\/p>\n<\/li>\n<li data-start=\"7621\" data-end=\"7646\">\n<p data-start=\"7623\" data-end=\"7646\">Production deployment<\/p>\n<\/li>\n<li data-start=\"7647\" data-end=\"7681\">\n<p data-start=\"7649\" data-end=\"7681\">Research-grade experimentation<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"7683\" data-end=\"7686\" \/>\n<h2 data-start=\"7688\" data-end=\"7746\"><strong data-start=\"7691\" data-end=\"7746\">17. When Should You Use Artificial Neural Networks?<\/strong><\/h2>\n<p data-start=\"7748\" data-end=\"7764\">\u2705 Use ANNs when:<\/p>\n<ul data-start=\"7765\" data-end=\"7906\">\n<li data-start=\"7765\" data-end=\"7782\">\n<p data-start=\"7767\" data-end=\"7782\">Data is large<\/p>\n<\/li>\n<li data-start=\"7783\" data-end=\"7807\">\n<p data-start=\"7785\" data-end=\"7807\">Patterns are complex<\/p>\n<\/li>\n<li data-start=\"7808\" data-end=\"7832\">\n<p data-start=\"7810\" data-end=\"7832\">Accuracy is critical<\/p>\n<\/li>\n<li data-start=\"7833\" data-end=\"7873\">\n<p data-start=\"7835\" data-end=\"7873\">Images, speech, or text are involved<\/p>\n<\/li>\n<li data-start=\"7874\" data-end=\"7906\">\n<p data-start=\"7876\" data-end=\"7906\">Traditional ML underperforms<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"7908\" data-end=\"7926\">\u274c Avoid ANNs when:<\/p>\n<ul data-start=\"7927\" data-end=\"8043\">\n<li data-start=\"7927\" data-end=\"7944\">\n<p data-start=\"7929\" data-end=\"7944\">Data is small<\/p>\n<\/li>\n<li data-start=\"7945\" data-end=\"7978\">\n<p data-start=\"7947\" data-end=\"7978\">Interpretability is mandatory<\/p>\n<\/li>\n<li data-start=\"7979\" data-end=\"8004\">\n<p data-start=\"7981\" data-end=\"8004\">Resources are limited<\/p>\n<\/li>\n<li data-start=\"8005\" data-end=\"8043\">\n<p data-start=\"8007\" data-end=\"8043\">Simple models already perform well<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"8045\" data-end=\"8048\" \/>\n<h2 data-start=\"8050\" data-end=\"8098\"><strong data-start=\"8053\" data-end=\"8098\">18. ANNs in Real-World Production Systems<\/strong><\/h2>\n<p data-start=\"8100\" data-end=\"8111\">ANNs power:<\/p>\n<ul data-start=\"8112\" data-end=\"8285\">\n<li data-start=\"8112\" data-end=\"8130\">\n<p data-start=\"8114\" data-end=\"8130\">Search engines<\/p>\n<\/li>\n<li data-start=\"8131\" data-end=\"8159\">\n<p data-start=\"8133\" data-end=\"8159\">Face recognition systems<\/p>\n<\/li>\n<li data-start=\"8160\" data-end=\"8188\">\n<p data-start=\"8162\" data-end=\"8188\">Recommendation platforms<\/p>\n<\/li>\n<li data-start=\"8189\" data-end=\"8201\">\n<p data-start=\"8191\" data-end=\"8201\">Chatbots<\/p>\n<\/li>\n<li data-start=\"8202\" data-end=\"8225\">\n<p data-start=\"8204\" data-end=\"8225\">Autonomous vehicles<\/p>\n<\/li>\n<li data-start=\"8226\" data-end=\"8253\">\n<p data-start=\"8228\" data-end=\"8253\">Medical imaging systems<\/p>\n<\/li>\n<li data-start=\"8254\" data-end=\"8285\">\n<p data-start=\"8256\" data-end=\"8285\">Speech recognition software<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"8287\" data-end=\"8328\">Modern AI systems heavily depend on them.<\/p>\n<hr data-start=\"8330\" data-end=\"8333\" \/>\n<h2 data-start=\"8335\" data-end=\"8391\"><strong data-start=\"8338\" data-end=\"8391\">19. Business Impact of Artificial Neural Networks<\/strong><\/h2>\n<p data-start=\"8393\" data-end=\"8417\">ANNs help organisations:<\/p>\n<ul data-start=\"8419\" data-end=\"8634\">\n<li data-start=\"8419\" data-end=\"8442\">\n<p data-start=\"8421\" data-end=\"8442\">Increase automation<\/p>\n<\/li>\n<li data-start=\"8443\" data-end=\"8474\">\n<p data-start=\"8445\" data-end=\"8474\">Improve prediction accuracy<\/p>\n<\/li>\n<li data-start=\"8475\" data-end=\"8502\">\n<p data-start=\"8477\" data-end=\"8502\">Reduce operational risk<\/p>\n<\/li>\n<li data-start=\"8503\" data-end=\"8544\">\n<p data-start=\"8505\" data-end=\"8544\">Boost revenue through recommendations<\/p>\n<\/li>\n<li data-start=\"8545\" data-end=\"8573\">\n<p data-start=\"8547\" data-end=\"8573\">Improve medical outcomes<\/p>\n<\/li>\n<li data-start=\"8574\" data-end=\"8602\">\n<p data-start=\"8576\" data-end=\"8602\">Strengthen cybersecurity<\/p>\n<\/li>\n<li data-start=\"8603\" data-end=\"8634\">\n<p data-start=\"8605\" data-end=\"8634\">Enable intelligent products<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"8636\" data-end=\"8688\">ANNs are core to the <strong data-start=\"8657\" data-end=\"8687\">AI-first business strategy<\/strong>.<\/p>\n<hr data-start=\"8690\" data-end=\"8693\" \/>\n<h1 data-start=\"8695\" data-end=\"8711\"><strong data-start=\"8697\" data-end=\"8711\">Conclusion<\/strong><\/h1>\n<p data-start=\"8713\" data-end=\"9019\">Artificial Neural Networks are one of the most important breakthroughs in machine learning. They learn directly from data, handle complex patterns, and power modern intelligent systems. From finance and healthcare to cybersecurity and recommendation engines, ANNs are at the heart of today\u2019s AI revolution.<\/p>\n<p data-start=\"9021\" data-end=\"9101\">As data grows and computing power improves, ANNs will become even more powerful.<\/p>\n<hr data-start=\"9103\" data-end=\"9106\" \/>\n<h1 data-start=\"9108\" data-end=\"9128\"><strong data-start=\"9110\" data-end=\"9128\">Call to Action<\/strong><\/h1>\n<p data-start=\"9130\" data-end=\"9321\"><strong data-start=\"9130\" data-end=\"9278\">Want to master Artificial Neural Networks and Deep Learning with real-world projects?<br data-start=\"9217\" data-end=\"9220\" \/>Explore our full AI &amp; Data Science course library below:<\/strong><br data-start=\"9278\" data-end=\"9281\" \/><a href=\"https:\/\/uplatz.com\/online-courses?global-search=data%20science\">https:\/\/uplatz.com\/online-courses?global-search=data%20science<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Artificial Neural Networks (ANNs): A Complete Practical Guide Artificial Neural Networks (ANNs) form the foundation of modern artificial intelligence. They power voice assistants, recommendation systems, fraud detection engines, medical diagnosis <span class=\"readmore\"><a href=\"https:\/\/uplatz.com\/blog\/artificial-neural-networks-anns-explained\/\">Read More &#8230;<\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[170],"tags":[],"class_list":["post-7767","post","type-post","status-publish","format-standard","hentry","category-artificial-intelligence"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Artificial Neural Networks (ANNs) Explained | Uplatz Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uplatz.com\/blog\/artificial-neural-networks-anns-explained\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Artificial Neural Networks (ANNs) Explained | Uplatz Blog\" \/>\n<meta property=\"og:description\" content=\"Artificial Neural Networks (ANNs): A Complete Practical Guide Artificial Neural Networks (ANNs) form the foundation of modern artificial intelligence. 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