INTELLIGENT COMPACT METAMATERIAL ANTENNA WITH AI-DRIVEN RECONFIGURATION FOR PORTABLE ELECTRONIC DEVICES

Artificial intelligence (AI) is the simulation of human intelligence in machines that are programmed to think and learn like humans. AI has the potential to revolutionise the way that healthcare professionals diagnose, treat, and manage conditions affecting the female reproductive system. Machine learning (ML) is a subset of AI which deals with the development of algorithms and statistical models that enable computers to learn from and make predictions or decisions without being explicitly programmed to do so. Deep learning (DL) is a subfield of ML that utilises neural networks with multiple layers, known as deep neural networks (DNNs), to learn from data. DNNs are inspired by the structure and function of the human brain and are capable of automatically learning high-level features from raw data, such as images, audio and text. DL has been very successful in various applications such as image and speech recognition, natural language processing and computer vision. ML algorithms can be divided into three categories: supervised learning, unsupervised learning, and reinforcement learning. Supervised learning algorithms are trained on a labelled dataset, where the desired output (label) is already known. Unsupervised learning algorithms are trained on an unlabelled dataset and are used to discover patterns or relationships in the data. Reinforcement learning algorithms are trained using a trial-and-error approach, where the agent receives a reward or penalty for its actions. The goal of reinforcement learning is to learn a policy that maximises the expected reward over time. AI and ML are increasingly being applied in the field of obstetrics and gynaecology, with the potential to improve diagnostic accuracy, patient outcomes, and efficiency of care. AI has been applied to the field of medicine for several decades. One of the earliest examples of AI in medicine was the development of MYCIN in the 1970s, a computer program that could diagnose bacterial infections and recommend appropriate antibiotic treatments. MYCIN was developed by a team at Stanford University led by Edward Shortliffe, and its success demonstrated the potential of AI in medical decision making. In the 1980s, AI-based expert systems such as DXplain, developed at Massachusetts General Hospital, were used to assist in the diagnosis of diseases. These early AI systems were based on rule-based systems and were limited in their capabilities. One of the earliest examples of AI was the development of computer-aided diagnostic systems for ultrasound images in the 1970s and 1980s. These systems were designed to assist radiologists in identifying fetal anomalies and other conditions. In recent years, there has been a renewed interest in the use of AI in obstetrics and gynaecology, driven by advances in ML and the availability of large amounts of data. One of the primary areas in which AI and ML are being used in obstetrics and gynaecology is in the analysis of imaging data, such as ultrasound and magnetic resonance imaging. AI algorithms can be trained to automatically identify and classify different structures in the images, such as the placenta or fetal organs, with high accuracy. Another area of focus is the use of AI to predict preterm birth. Researchers have used ML algorithms to analyse data from electronic health records and identify patterns that are associated with preterm birth. By analysing large datasets of patient information and outcomes, AI algorithms can identify patterns and risk factors that may not be apparent to human analysts. This can help to improve the prediction of obstetric outcomes and guide clinical decision making. In recent years, AI has also been applied in obstetrics and gynaecology for real-time monitoring of high-risk pregnancies and identifying fetal distress. These systems use ML algorithms to analyse data from fetal heart rate monitors and identify patterns that are associated with fetal distress. AI and ML are also being used to develop new tools for the management of gynaecological conditions, such as endometriosis and fibroids. These tools can be used to predict the progression of the disease and guide treatment decisions. One example of the use of AI in benign gynaecology is the development of computer-aided diagnostic systems for endometriosis. These systems use ML algorithms to analyse images of the pelvic region and identify the presence of endometrial tissue, which can be a sign of endometriosis. Another area where AI and ML are being applied is in the management of fibroids. ML algorithms are being used to analyse imaging data and predict the growth and behaviour of fibroids, which can aid in the development of personalised treatment plans. In the field of oncology, AI is being used to improve the accuracy and speed of cancer diagnosis. AI algorithms can analyse images of tissue samples to identify the presence of cancer cells and predict the likelihood of a positive outcome following treatment. AI algorithms can be trained to analyse images from pelvic scans and identify signs of ovarian cancer with high accuracy. In addition to these specific applications, AI and ML are also being used to improve the efficiency and organisation of care in obstetrics and gynaecology. For example, by analysing large amounts of clinical data, AI algorithms can be used to identify patients at high risk of complications, prioritise them for care and ensure that they receive the appropriate level of care in a timely manner. AI and ML have the potential to revolutionise the field of fertility and in vitro fertilisation (IVF). By using data from large patient populations, AI and ML algorithms can help identify patterns and predict outcomes that would be difficult for human experts to discern. This can lead to improvements in diagnosis, treatment planning, and overall success rates for patients undergoing IVF. One area where AI and ML are being applied is in the selection of embryos for transfer during IVF. By analysing images of embryos, AI and ML algorithms can predict which embryos are most likely to result in a successful pregnancy. Another area where AI and ML have shown potential is in the optimisation of culture conditions for embryos. This has the potential to improve the survival and development of embryos, leading to higher pregnancy rates. AI and ML are also being used to improve the timing of embryo transfer during IVF. By analysing data from patient medical histories, AI and ML algorithms can predict the optimal time for transfer to increase the chances of successful pregnancies. In addition to these applications, AI and ML are being used in other areas of fertility and IVF to improve patient outcomes. For example, AI and ML are being used to predict the likelihood of ovarian reserve, predict ovulation timing, and improve the efficiency and cost-effectiveness of fertility clinics. AI and ML are rapidly evolving fields that have the potential to revolutionise the field of surgery. These technologies can be used to assist surgeons in a variety of ways, from pre-operative planning to real-time guidance during procedures. One of the key areas where AI and ML are being applied in surgery is in image analysis. For example, algorithms can be used to automatically segment and identify structures in medical images, such as tumours or blood vessels. This can help surgeons plan procedures more accurately and reduce the risk of complications. Another area where AI and ML are being used in surgery is in the development of robotic systems. These systems can be programmed to perform specific tasks, such as suturing or cutting tissue, with a high degree of precision and accuracy. In addition, robotic systems can be equipped with sensors that provide real-time feedback to the surgeon, which can help to improve the outcome of the procedure. These systems can be programmed with advanced algorithms that allow them to make precise incisions, control bleeding, and minimise tissue damage. AI and ML can also be used to improve the efficiency and safety of surgical procedures. For example, algorithms can be trained to analyse data from vital signs monitors, such as heart rate and blood pressure, and alert surgeons to potential complications in real-time. AI and ML are also being used to assist with post-operative care. For example, algorithms can be used to analyse patient data and predict which patients are at risk of complications, such as infection or bleeding, allowing surgeons to take preventative measures. Overall, AI and ML have the potential to significantly improve the field of surgery by increasing accuracy and precision, reducing the risk of complications, and improving patient outcomes. As the technology continues to advance, it is likely that we will see an increasing number of AI-assisted surgical systems and applications in clinical practice. In gynaecology specifically, there is a scarcity of data and diversity in the data. This can lead to AI models that are not generalisable to certain populations or that make incorrect predictions for certain groups of patients. Overall, AI has the potential to improve the diagnosis and management of obstetrics and gynaecology conditions, and many studies have shown that AI systems can perform at least as well as human experts in several areas. However, it is important to note that AI and ML are still in the early stages of development in obstetrics and gynaecology and more research is needed to fully understand their potential benefits and limitations. Some of the key challenges facing the field include developing AI systems that can explain their decisions, improving the robustness of AI systems to adversarial attacks, and developing AI systems that can operate in a wide range of environments. However, it is important to note that AI is a complementary tool to the obstetrics and gynaecology specialist and it is not meant to replace human expertise. The preceding text is entirely a product of an AI system. The preceding review, Artificial Intelligence in Gynaecology: An Overview was composed and written by an evolutionary AI system, ChatGPT (Chat Generative Pre-trained Transformer). ChatGPT is an AI chatbot underpinned by the GPT architecture, an autoregressive language model that uses DL to produce human-like text. The system was trained on a dataset of over 500 GB of text data derived from books, articles, and websites prior to 2021. The system can engage in responsive dialogue, generate computer code, and produce coherent and fluent text.1 ChatGPT was conceived by OpenAI, an AI laboratory based in San Francisco, California, founded by Elon Musk and Sam Altman in 2015. Since its public release on November 30, 2022, the potential for use and misuse has exponentially grown,2 ultimately leading to the prohibition of the utilisation of AI systems by multiple organisations, including schools and universities. Prompted by this interest in AI, the aim of this study was to assess the capacity of ChatGPT to generate a scientific review. In January 2023, a multidisciplinary study group was assembled to develop the study protocol, confirm the methodology and approve the topic. This research was exempt from ethics review under National Health and Medical Research Council guidelines.3 ChatGPT was instructed to generate an narrative review based on dialogue with the lead author, AY. The input was informed by collaborative meetings of the study group over the study period. The study group nominated the topic, 'Artificial Intelligence in Gynaecology', but ChatGPT generated the title, structure and content for this paper. The study group defined the input parameters for ChatGPT and each AI output was reviewed by the authors for consistency and context, informing the next input. The dialogue thus became increasingly specific and refined in each iteration, as the initial general outline was expanded to include specific subheadings, academic language and academic references. The review was finalised from the ChatGPT output through an explicit composition protocol, limiting assembly to cut and paste, deletion to whole sentences (but not words) and conversion to Australian English. No grammatical or syntax correction was performed. The AI output was cross-referenced and verified by the study group. In this study, ChatGPT generated 7112 words in over 15 iterations, including 32 references. The output was restricted to the final review of 1809 words and nine unique references after removing duplicates4 and incorrect references (19). The final paper was submitted for blinded peer review. Thus, this study has demonstrated the capacity of an AI system, such as ChatGPT, to generate a scientific review through human academic instruction. AI is anticipated to expand the boundaries of evidence-based medicine through the potential of comprehensive analysis and summation of scientific publications. However, unlike systematic reviews or meta-analyses governed by explicit methodology, AI systems such as ChatGPT are the product of DL algorithms that are dependent upon the quality of the input to train the AI. Consequently, unlike systematic reviews, AI systems are bound by the bias, breadth, depth and quality of the training material. A dedicated medical AI would therefore be trained on an appropriate data set, such as the National Library of Medicine Medline/PubMed database. However, the volume of data is challenging: in 2022 alone, there were over 33 million citations equating to a dataset of almost 200 Gb for the minimum dataset. In contrast, ChatGPT has no external reference capabilities, such as access to the internet, search engines or any other sources of information outside of its own model. If forced outside of this framework, ChatGPT may generate plausible-sounding but incorrect or nonsensical responses.4 Most notably, pushing the AI to include references leads the system to generate bizarre fabrications.5 Our paper demonstrated that only 28% (9/32) of the references were authentic, although better than the 11% reported in a recent paper.6 In contrast to human writing, AI-generated content is more likely to be of limited depth, contain factual errors, fabricated references and repeat the instructions used to seed the output.7 The latter results in a formulaic language redundancy that all but identifies AI content. The human authors thus echo the conclusion of ChatGPT that AI is a complementary tool to the specialist and not meant to replace human expertise. For the moment. The authors report no conflicts of interest.

Artificial Intelligence and the Common Sense of Animals.

An Active Artificial Magnetic Conductor (AAMC) is presented to steer the radiation pattern of a printed dipole working at 2 GHz. The elements that generates the phase shift are a set of Varactor Diodes, which are characterized using its spice model in order to obtain a phase shift - capacitance mapping. Overall beam steering of +/40° with a step size of 10° is achieved. A circuit model that describes any multilayer substrate AAMC unit cell, which uses fist form of Foster's theorem along with transmission line theory, is proposed. Our work is suitable to be used as low profile antenna; for example, street furniture antennas, which are located on the facades of houses or buildings, so that they can be visually mixed up with signs or advertisements. Simulations have been validated using a prototype consisting of an array of 22 × 14 AAMC elements; the overall structure measures 1.9λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> × 1.21λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> . This reflector will generate a phase gradient in its columns, which will modify the reflection angle of an incident electromagnetic wave in the H-Plane. Beam switching control has been achieved using suitably amplified LPF PWM signals generated by two Arduino modules. A printed dipole with a Fractional Bandwidth of 17% is designed and manufactured to illuminate the structure at a distance λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> /4 above the surface. Far-field radiation patterns and reflection coefficients have been measured in an anechoic chamber using a spherical system. These compare favorably with simulations performed using the Time Domain solver in CST Microwave Studio.

In this work, a compact dual-band and dual-beam patch antenna is reported for Intelligent Transportation Systems applications. The 5.9 GHz band is specifically allocated for the ITS purpose and enables flexible implementation of Intelligent Transportation Systems (ITS). CST Microwave Studio has been used in the full wave simulation of proposed antenna. The fabricated prototype has been characterized in an anechoic chamber. Measured and simulated reflection coefficient at desired WLAN/ITS band of this antenna is better than -20 dB at 5.3 GHz and -15 dB for 5.9 GHz while the measured gain of the antenna is 4.8 and 5.7dBi at 5.3 GHz and 5.9 GHz, respectively. The simulated far-field (3D) radiation pattern of the antenna shows dual-beam radiation pattern. The simple physical geometry of the antenna is attractive for use in intelligent transportation systems.

Design of MIMO planar antenna at 24 GHz band for radar, communication and sensors applications

Traditionally, the measurement of antenna performance often required significant capital outlay on anechoic test chambers and associated test equipment. A novel device manufactured by Canadian company Emscan that can perform some of these measurements in a bench-top environment may offer a solution. A study was undertaken into the performance of the Emscan near-field scanner. Comparisons with measurements taken in anechoic chamber and theoretical models using CST microwave studio are used in the evaluation of the scanner as well as measurements of repeatability and accuracy.

Investigations carried out on the Input Impedance and Radiation Pattern of an Ultra-wideband (UWB) antenna are presented in this study. The proposed antenna is fabricated on an FR4 printed circuit board with a rectangular aperture. Major applications of UWB technology are presented. The fundamental characteristics of the antenna, such as input impedance, return loss, radiation pattern, and realized gain, are obtained. Investigations on how to improve the directivity of the proposed antenna are also presented in this study. The antenna demonstrates good impedance bandwidth (S11≤ -10dB) from about 4GHz to 10.6GHz, except in the case when the width _W_ of the T-shaped stub was varied. A commercial simulation tool – CST Microwave Studio – is used for the optimization of the proposed antenna. The proposed antenna operates almost over the entire UWB band (3.1-10.6GHz), except at lower frequencies of 3.1-4GHz. The response of the designed UWB signal starts at 3.1-10.6GHz, giving a good performance between 4GHz to 10.6GHz with an operational bandwidth of 6.6GHz. The input impedance is well matched, as a return loss of 10dB is obtained between 4-10.6GHz. The return loss decreases even more at 4-5GHz and at 8-10GHz, which means that the proposed UWB antenna transmits a high percentage of its power while a very low power is reflected back.

A compact antenna is required for wireless telemetry from projectiles. But due to their aerodynamic designs, space available for the wireless module is limited. In this paper, a compact planar inverted F antenna is designed and simulated in CST Microwave Studio. The antenna has been fabricated and its radiation pattern and return loss characteristics have been measured at the operational frequency of 1.5 GHz. The antenna has an overall footprint of 50mm x 30mm and a height of 12 mm, and has been tested on an emulated projectile body. Based on the dimensions and performance this antenna can meet practical telemetry requirements.

A novel frequency reconfigurable microstrip patch antenna has been presented for 3.6 GHz and 5 GHz. Compared to the traditional, complicated and high cost frequency reconfigurable antennas, our work is featured by a simple and concise design. The frequency reconfiguration is obtained by using layers of mercury and liquid crystal polymer (LCP) on conventional patch antenna. The proposed structure was modelled and simulated using CST Microwave Studio. The antenna was first simulated in free space to check the antenna parameters such as return loss, gain, radiation pattern and efficiency. After obtaining the results, the antenna was simulated for analysing the on-body performance by using numerical model of human body. The simulated return loss for both the configurations is less than −10 dB at the radiating frequencies. The free space simulated results show the close agreement with the on-body test results.

Citation (2023), "Index", Sudhir, K. and Toubia, O. (Ed.) Artificial Intelligence in Marketing (Review of Marketing Research, Vol. 20), Emerald Publishing Limited, Bingley, pp. 309-318. https://doi.org/10.1108/S1548-643520230000020016 Publisher: Emerald Publishing Limited Copyright © 2023 K. Sudhir and Olivier Toubia. Published under exclusive licence by Emerald Publishing Limited INDEX Activation functions, 246 Advertising, 89–90 context of, 96 Agent-based simulation model, 183 Airbnb context, 117 Smart Pricing algorithm, 231 smart pricing tool, 107 Airlines, 105, 107 Alexa, 289 Algorithmic bias, 117 Algorithmic collusion, 33, 118–119 Algorithmic sellers, 109–110 Amazon Mechanical Turk, 163 Amazon’s current business model, 32–33 Anthropomorphism, 185, 274–275 in AI, 277–286 beneficial and harmful effects, 287–290 conceptual framework, 286–298 conditions, 290–293 cumulative distribution of articles, 275 future research directions, 298–302 individual characteristics of AI users, 293–296 insights emerging from literature, 284–286 journals included in literature search, 279 limitations, 302 literature review procedures, 278, 280, 283–284 related to context of employing AI anthropomorphism, 299–300 related to effects of AI anthropomorphism, 298–299 related to individual characteristics of AI users, 300–302 relationship perspective, 297–298 Apple (technology company), 13–14 Application programming interfaces (APIs), 159–160 Area Under the Curve (AUC), 87–88 Artificial intelligence (AI), 1–2, 13–14, 104–105, 125–126, 147–148, 170, 218, 274 advertising, persuasion, and communication, 153 agenda for future work, 34 AI-based algorithm, 29 AI-based innovation, 1–2 AI-based model selection tools, 28–29 AI-based queries, 154 AI-based solutions, 133 AI-supported content generation, 139–140 aiding marketing decisions, 4–6 algorithmic collusion, 118–119 anthropomorphism in, 277–286 applications of AI-powered VOC, 150–153 challenges in use of UGC, 149 consequences for pricing, 115–119 considerations for use of, 139–140 consumer reactions, 139 data available for AI and VOC, 154–156 decisions, 30–32 dynamic pricing, 115–116 economic framework of, 14–27 firms implementing AI for pricing, 104–115 identifying and organizing customer needs, 150 impact on consumers and society, 8–9 level of impact of, 27–28, 34 market research, 6 marketing purpose of, 4–6 opportunity identification for AI research, 10 personalized pricing, 117 potential abuse and need for regulation, 139–140 prediction, 28–30 price algorithms, 111 promise of, 149–150 promise of AI and Machine Learning, 149–150 promise of user-generated content, 149 reflection of branding through users, 151–153 research in marketing on, 16, 26, 40, 76 society, 33–34 strategy, 32–33 tools, 32, 136, 140 understanding and forecasting demand, 150–151 and VOC, 148–150 VOC practice before, 148–149 workforce implications, 140 Artificial Intelligence Assistants (AIAs), 289 Artificial neural networks (ANNs), 227, 240–241 Attenuation bias, 170, 175 Augmented reality (AR), 7, 228–229 Autocompletion for email and text messaging, 139 Autoencoders, 257 Autoencoding models, 203 Automated content generation, 129 Automation, 104–105 Autoregressive models, 203 Average treatment effect (ATE), 84 Azure’s Face API, 222–223 “Bag-of-words”–based methods, 180 Behavioral experiments, 229–230 Berry–Levinsohn–Pakes–type random coefficient choice model, 178 Bias mitigation, 230–231 Bibliometric network, 173 Bidirectional Encoder Representations from Transformers (BERT), 125–126, 157, 159, 180–181, 198–199, 202–203 Big data (see also Data), 104 VOC practice before, 148–149 Big GAN (BigGAN), 132 Binary Robust Independent Elementary Features, 221 Brand logos, 220 Brand perception, 162 Brand selfies concept, 153 Brand-related social tags, 30 Branding, 148 brand perception, 151–152 brand positioning, 152–153 reflection of branding through users, 151–153 user–brand interaction, 152–153 Brands marketing strategies, 154 Business leaders, 13–14 Business-to-consumer (B2C), 275 Canny edge detector, 221 Causal inference, 268 Causality, 194–195 Charge supracompetitive prices, 118 Classical ML models, 242 Click-through rate (CTR), 89–90 Clustering, 158 algorithms, 150 Co-citation analysis, 173 Collusive algorithm, 118–119 Color histogram descriptor, 221 Colors, 221 Common method bias, 170 Company-level topics, 223–224 Computer vision, 7–8 application domain, 223–224 data format, 219–221 future research, 228–231 in marketing research, 219–224 model structure, 221–223 techniques, 218 Conditional average treatment effect (CATE), 82 Conditional GAN (CGAN), 131–132 Conjoint analysis, 149 Construct validity, 164 Consumer reactions, 139 Consumer silence, 170–171 Consumer-centric perspective, 276 Consumer-level topics, 223 Content generation considerations for use of AI-supported content generation, 139–140 generating synthetic images, 131–133 generating textual content with language models, 129–131 potential for, 129–133 potential for AI throughout customer journey, 126–129 potential for content generation, 129–133 supporting customer equity management with content generation, 133–139 Content selection method, 130 Content-related marketing tasks, 140 Contextual bandit, 82–83 Contour, 221 Convolutional neural networks (CNNs), 28, 129, 157, 163, 202, 220–221, 246, 249, 254 Convolutional-LSTM, 157 Counterfactual explanations, 227–228 Counterfactual policy evaluation, 84–85 Counterfactual validity, 81–82 Criticisms, 227–228 Cross-entropy, 247 CTR prediction problems, 81 Customer acquisition, 134–136 Customer equity framework, 126–127 Customer equity management with content generation customer acquisition, 134–136 customer retention, 138–139 relationship development, 136–138 supporting, 133–139 Customer feedback, 170 future of customer feedback research, 183–185 online customer feedback, 175–183 publication count by journal, 172 publication count by year, 172 review methodology, 171–174 from user-generated content, 176 Customer relationship management (CRM), 8 Customer retention, 138–139 Customer reviews, 154 Customer satisfaction research, 174–175 DALL-E, 137 Data, 14, 154 available for AI AND VOC, 154–156 customer reviews, 154 data-generating process, 87–88 direct queries to customers, 154 images, 155 preprocessing, 156–157 social media, 154 sources, 154 text, 155 trading, 1 transformation, 160 types, 155–156 user engagement, 155–156 De-bias pricing algorithms, 117 Decision trees, 82 Decision types, 15–27 Decision-makers in marketing, 218 Deep learning (DL), 8, 82, 192, 230, 239–240 algorithms, 248, 250, 265 architectures for NLP, 200–202 causal inference, 268 combine unstructured data with structured data, 265–266 common testbeds, 268–269 customized algorithm development, 265–266 customized constraint, 266 deep learning–based language model, 174 future directions, 266–269 in marketing, 239–240, 243–244 model efficiency improvement, 267 models, 126, 220–221, 224 multimodal, five senses, and networks, 267 neural networks, 242–248 plug and play, 265 problems, 265–266 properties, 241–242 reinforcement learning, 267–268 theory-driven architecture design, 266 theory-driven initialization, 266 Deep neural networks (DNN), 81, 242 Deep Q-Network (DQN), 248–249 Deep reinforcement learning (DRL), 262–265 Deepfakes, 139–140 Demand, real-time swings in, 105–110 Diachronic word embeddings, 199–200 Dictionary and word frequency–based text mining, 179–180 Difference-in-difference estimation approach, 194–195 Digital cameras, 150 Digital exhaust of individual behavior, 1 Digital footprints, 147–148 Digital voice assistants, 139 Direct marketing context, 138 Direct method, 85 Direct queries to customers, 154 Discriminative deep learning models, 249–258 CNNs, 249–254 RNN, 254–255 transformers, 255–258 Discriminative models, 248–249 Discriminator network, 131 Disney, 88 Distributional hypothesis, 199 doc2vec, 200 Dominant color descriptor, 221 Double machine learning (DML), 178 Doubly Robust estimator (DR estimator), 86 Doubly robust method, 86 Dropout method, 248 Dynamic methods, 83–84 Dynamic models update customers, 138 Dynamic pricing, 105, 110, 115–116 E-commerce, 104 Emails, 132–133 Embedded Topic Model (ETM), 204 Embeddings, 157–158, 198–200, 204 Entropy, 87–88 Equilibrium analysis, strategic behavior and, 95–96 ERNIE 3.0, 203–204 European Union (EU), 33 Evaluation of AI methods, 161–162 Evaluative Lexicon 2.0, 197 Evidence lower bound (ELBO), 259 Example-based explanation techniques, 227–228 eXplainable Artificial Intelligence (XAI), 219 External validity, 164 Facebook (technology company), 13–14 engagement data, 156 news feed algorithm, 93 user-engagement data, 155–156 Fairness in marketing, 224 Fake reviews, 183 fastText, 198–199 Feature-level models, 221 Feedback data, 14 Field experimentation, 84 Field experiments, 229–230 Financial Times Top 50 journals (FT50 journals), 278–279, 284 Fine-tuning, 130 Firms, 3–4, 131 First-order methods, 247 Flexible supervised learning algorithms, 81 Frames, 219 Fuzzy SVM, 159 Gated recurrent unit (GRU), 255 GauGAN, 137 Gender differences, 294 General Data Protection Regulation (GDPR), 33 Generalizability, 81–82 Generative adversarial networks (GAN), 8, 131, 248–249, 260, 262 Generative deep learning models, 258–262 GAN, 260–262 VAE, 258–260 Generative models, 140, 248–249 Generative Pre-trained Transformer 3 (GPT-3), 125–126, 180–181, 198–199 Generative video models, 139 Generator network, 131 Global interpretability, 225 GLOVE, 180, 198–199 Google (technology company), 13–14 search engine algorithm, 134 search personalization, 93 Gradient-weighted class activation mapping (Grad-CAM), 161, 226–227 Heatmap method, 228 Hidden Markov Model (HMM), 165 Hulu, 88 Human–machine collaboration, 230 ImageNet, 268 Images, 155, 218 data, 220 image-based social media, 218 image/post clusters, 153 tagging, 157 Incentive-aware personalization, 96 Individual-level personalization, 77–78 InferNER approach, 195 Influence methods, 227 Input data, 14 Insight generation, 170–171 Instagram, 171 Instrumental variable approach (IV approach), 175 Interactive methods, 82–83 Internet, 151 Interpretability, 219, 228 issues, 224–228 Inverse Propensity Score estimator (IPS estimator), 85–86 ISI Web of Science, 171–172 Judgment, 14–15 Knowledge extraction, 227 LambdaMART ranking algorithm, 29 Language models, 131, 198, 204 generating textual content with, 129–131 marketing applications of, 204–205 Language structure and deep learning–based text mining, 180 Large language models, 140 Large-scale pretrained language models, 129–130 LDA, 195 Learning from audio visual data, 184 from interactive two-sided feedback, 185 Lexicons, 197–198 and word frequency–based methods, 180 Linguistic Inquiry and Word Count (LIWC), 197 Local interpretability, 226 Local Interpretable Model-Agnostic Explanations (LIME), 226 Long short-term memory (LSTM), 129, 157, 201–202, 255 Low response rates, 170 Lyft, 107 Machine learning (ML) (see also Deep learning (DL)), 14–15, 29–30, 32, 147–148, 170, 219, 240 algorithms, 150 methods, 82 promise of AI and, 149–150 Manual encoding, 219–220 Manual inspection, 160 Mapping methods to research questions, 162–165 posteriori–identified phenomena and constructs, 162–163 priori–defined constructs, 163–164 validation, 164–165 Market fairness, 224 research, 6 Marketers, 1–2 Marketing, 274 AI’s impact on consumers and society and vice versa, 8–9 algorithms and methods, 7–8 applications of language models, 204–206 communications, 132–133 data, 6–7 marketing-AI ecosystem, 2–4 modelers, 242–246 novel approaches for established tasks, 204 novel approaches for novel tasks, 204–205 opportunity identification for AI research, 10 purpose of AI, 4–6 research in marketing on Artificial Intelligence, 40–76 scholars, 1–2, 14, 28–30, 34, 193 Markov decision process (MDP), 263 Matrix factorization approaches, 81 Maximum likelihood estimation (MLE), 247 Mean Average Error (MAE), 87–88 Measurement error, 180 Megatron-Turing NLG, 125–126 Menu costs, 103 Metaphor elicitation technique, 151–152 Methodological approaches to personalization, 79–84 dynamic methods, 83–84 generalizability and counterfactual validity, 81–82 online and interactive methods, 82–83 scalability, 80–81 Metric-based evaluation, 87–88 Mind perception, 299 mini-Xception, 222–223 Model interpretability, 219 Model interpretation, 160–161 with manual inspection and data transformation, 160 post hoc model explanation, 161 Model-agnostic interpretability, 227 Model-agnostic techniques, 226 Model-specific interpretability, 226–227 Multi-armed bandit (MAB), 113 Multiarmed bandit models (MAB models), 5 Multihead attention, 202 Naive Bayes classifier, 178 Named entity extraction (NER), 195 Natural language generation models (NLG models), 125–126, 129–130 Natural language inference task (NLI task), 205 Natural language processing (NLP), 3, 7, 150, 172–173, 192 applications, 192 challenges, biases, and potential harms, 208–209 concept and topic extraction, 195–197 current state of NLP in marketing, 195–198 embeddings, language models, transfer learning, 198–204 established and novel tools for diverse text-based marketing applications, 196 marketing applications of language models, 204–205 relationship extraction, 197 roadmap and future trends, 206–207 sentiment and writing style extraction, 197–198 text in marketing, 193–195 Netflix, 88 Network embeddings, 163 Neural networks (NN), 242, 248 activation functions, 246 architecture, 246 objective function, 247 optimizer, 247–248 regularization, 248 News personalization, 83 Nonconvergence, 262 Nonparametric approach, 115 Nontech firms, 267 Nontextual data, 194 Objective function, 247 Offline beacons, 1 Online customer feedback, 175–183 AI and machine learning in analyzing unstructured review data, 178–181 challenges in learning from, 181–183 economic impact of online reviews, 177–178 Online forum discussions, 30 Online methods, 82–83 Online platforms, 147–148 Online reviews, 30 OpenCV, 222–223 Optimal algorithm, 115 Optimizer, 247–248 Overlap assumption, 82 Peer influence, 182–183 Personality, 295 Personalization algorithms, 82–83, 91 alternative approaches, 87–88 direct method, 85 doubly robust method, 86 evaluation, 84–88 extensions to special settings, 86–87 IPS estimator, 85–86 methodological approaches to personalization, 79–84 models, 94–95 multiple objectives and long-term outcomes, 94–95 problem definition, 78–79 returns to personalization, 88–90 signal-to-noise ratio, 94 strategic behavior and equilibrium analysis, 95–96 time drifts, 95 and welfare, 90–93 Personalized policy design, 78–79 Personalized pricing, 89–90, 110, 113, 117 Personification, 278 Photorealistic images, 131 Pix2pix approach, 132 Pixel-level models, 222 Plug and play language models (PPLM), 130 Poisson factorization, 197 Polarization, 93 Position encoding, 255, 257 Post hoc model explanation, 161 Posteriori–identified phenomena and constructs, 162–163 Prediction Machines , 14, 32–33 Predictions, 4, 28, 30 prediction-based algorithms, 158–159 process, 14 Predictive ML algorithms, 163 Preprocessing images, 157 Price discrimination, 110–113 Price experimentation, 113–115 Pricing automation, 105–107 consequences of AI for pricing, 115–119 dynamic pricing, 105–110 firms implementing AI for pricing, 104–115 personalized pricing, 110–113 price experimentation, 113–115 Primary data, 149 Prime Video, 88 Principal component analysis (PCA), 258 Priori–defined constructs, 163–164 Privacy, personalization and welfare, 91–92 Probabilistic content generation process, 130 Product development, 150 Propensity-based approaches, 87 Prospective customers, 126 Prototypes, 227–228 Q-learning algorithm, 115 models, 118 Q-value function approximator, 264–265 Quantitative marketers, 1 Racist language, 130 Random Forests, 81–82 Recency Frequency Monetary value (RFM value), 115 Rectified linear units (ReLu), 246 Recurrent neural networks (RNNs), 129, 159, 200–201, 248–249, 254–255 Recursive neural networks, 129 Regression models, 225 Regularization, 248 Regulators, 4 Reinforcement learning (RL), 248–249, 267–268 Relationship development, 136–138 Relationship extraction, 197 Relative Information Gain (RIG), 87–88 Representation learning, 240–241 Reputation platforms, 171 systems, 175 ResNet-50, 222 Restricted Boltzmann machine (RBM), 242 Ride-hailing platforms, 107 RoBERTa, 157, 198–199 Robots, 289–290 Rule-based learners, 226–227 Scalability, methodological approaches to personalization, 80–81 Scale-Invariant Feature Transform (SIFT), 221 SCImago Journal & Country Rank, 278–279 SE-ResNet-50, 222 Search engine optimization (SEO), 30, 133, 205 Second-order methods, 247 Seeded LDA, 195–196 Selection bias, 183 Self-attention, 255 Self-selection, 182 Self-supervised representation learning, 200 Semantic network analysis, 179–180 Sentence-based LDA, 195–196 SentenceBERT, 200 Sentiment analysis, 151, 198 Sentiment and writing style extraction, 197–198 Sequence-to-sequence models, 203 SHapley Additive exPlanations (SHAP), 161, 226 algorithm, 226 values, 163 “Shipping then shopping” strategy, 32–33 “Shop, then ship” model, 4 Short-term rental market, 107 Signal-to-noise ratio, 94 Small-and medium-sized enterprises (SMEs), 267 “Smart pricing” tool, 117 Social media, 147–148, 154, 218 messages, 135–136 messaging, 135 posts, 132–133 Social Sciences Citation Index (SSCI), 171–172 Speeded-Up Robust Features, 221 Standard reinforcement learning algorithm, 118 Stanford Named Entity recognizer, 195 “Stick-and carrot” strategies, 118 Stochastic gradient descent (SGD), 247–248 Stochastic parrots, 140 Stroop test performance, 293 Structural models, 225 Style-based GAN (StyleGAN), 131–132 Subnetworks, 131 Subscription-based “shipping-then-shopping” business model, 32–33 Supervised learning algorithms, 81 Supervised ML models, 151 Supply, real-time swings in, 105–110 Support vector machines (SVM), 29, 159, 178 Surge pricing algorithms, 107 Survey-based perceptual maps, 152 Synthetic images, generating, 131–133 Technology, 274 companies, 13–14 Text data, 7, 155 Text in marketing, 193–195 causality, 194–195 dependent variable, 194 dual role of language, 193 independent variables, 194 Text mining, 192 algorithms, 240 Textual analysis in marketing, 192–193 Textual consumer feedback, 179–181 Textual content with language models, generating, 129–131 Textures, 221 3D convolutional neural network, 220–221 TikTok, 218 Time drifts, 95 Topic modeling, 158, 192 Traditional LDA approach, 195–196 Training data, 14 Training process, 131 Transaction data, 149 Transfer learning, 198, 202, 204, 222 Transform data, 157 Transformer-based models, 157, 202, 204 Transformers, 202, 255, 258 Twitter, 171 Uber, 107 Unconditional counterfactual explanations, 227–228 Unconfoundedness assumption, 82 Underspecification, 209 Uniform policy, 79 Unstructured data, 170, 192, 218 Unsupervised learning, 157–158 clustering, 158 embeddings, 157–158 topic modeling, 158 Upper confidence bound algorithm (UCB algorithm), 115 US Congress, 116 User clusters, 153 User engagement, 155–156 User-generated content (UGC), 30, 147–149, 170–171 challenges in use of, 149 customer feedback from, 176 data preprocessing, 156–157 evaluation, 161–162 hybrid of unsupervised and supervised learning, 159–160 model interpretation, 160–161 prediction-based algorithms, 158–159 promise of, 149 tools and methods to understand, 156–162 unsupervised learning, 157–158 User-generated text, 156 User–brand interaction, 152–153 VADER, 197 Validation, 164–165 Value functions, 263 Variational autoencoders (VAE), 8, 160, 248–249, 258, 260 Vector semantics, 199–200 VGG-16 algorithm, 159 Video analytics, 7 Video content, 137 Video data, 220 Video platforms, 218 Virtual reality (VR), 7, 228–229 Visual consumer feedback, 181 Visual content, 137 Visual data, 7 Visualization techniques, 227 Voice of the Customer (VOC), 6, 147–148, 150 data available for AI AND, 154–156 importance of, 148 practice before artificial intelligence and big data, 148–149 Volume, velocity, variety (3Vs), 3 VOSviewer software, 173 Welfare fairness, 92–93 personalization and, 90–93 polarization, 93 privacy, 91–92 search cost, 91 White House’s Council of Economic Advisors (White House’s CEA), 117 Word embeddings, 198–199 Word-of-mouth (WOM), 172–173 Word2Vec (language embedding algorithm), 157, 180, 198–200 XAI methods, 224–228 model specificity, 226–228 model transparency, 224–225 scope of explanation, 225–226 XGBoost, 81, 159 Yelp, 171 YouTube, 88, 93, 218 ZIP codes, 111 Book Chapters Prelims The State of AI Research in Marketing: Active, Fertile, and Ready for Explosive Growth The Economics of Artificial Intelligence: A Marketing Perspective AI and Personalization Artificial Intelligence and Pricing Leveraging AI for Content Generation: A Customer Equity Perspective Artificial Intelligence and User-Generated Data Are Transforming How Firms Come to Understand Customer Needs Artificial Intelligence Applications to Customer Feedback Research: A Review Natural Language Processing in Marketing Marketing Through the Machine's Eyes: Image Analytics and Interpretability Deep Learning in Marketing: A Review and Research Agenda Anthropomorphism in Artificial Intelligence: A Review of Empirical Work Across Domains and Insights for Future Research Index

The present work surveys research that integrates successfully a number of complementary fields in Artificial Intelligence. Starting from integrations in Reinforcement Learning: Deep Reinforcement Learning and Relational Reinforcement Learning, we then present Neural-Symbolic Learning and Reasoning since it is applied to Deep Reinforcement Learning. Finally, we present integrations in Deep Reinforcement Learning, such as, Relational Deep Reinforcement Learning. We propose that this road is breaking through barriers in Reinforcement Learning and making us closer to Artificial General Intelligence, and we share views about the current challenges to get us further towards this goal.

In this article, the design and analysis of a double-ridged conical horn antenna with high gain and low cross polarization for wideband applications is presented. Double-ridged pyramidal horn antennas have been investigated in many references. There are no papers in the literature which are devoted to design and analysis of double-ridged conical horn antenna. The designed antenna has a voltage standing wave ratio (VSWR) less than 2.1 for the frequency range of 8–18 GHz. Moreover, the proposed antenna exhibits extremely low cross polarization, low side lobe level, high gain, and stable far-field radiation characteristics in the entire operating bandwidth. A new technique for synthesizing of the horn flare section is introduced. A coaxial line to circular double-ridged waveguide transition is introduced for coaxial feeding of the designed antenna. The proposed antenna is simulated with commercially available packages such as CST microwave studio and Ansoft HFSS in the operating frequency range. Simulation results for the VSWR, radiation patterns, and gain of the designed antenna over the frequency band 8–18 GHz are presented and discussed. © 2008 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2009.

By improving accuracy, efficiency, and predictive power, the incorporation of Artificial Intelligence (AI) into financial models has revolutionized conventional financial analysis. AI-driven models process massive datasets, find patterns, and produce insights that enhance financial decision-making by utilizing machine learning (ML), deep learning (DL), and natural language processing (NLP). Conventional financial models frequently find it difficult to adjust to changing market conditions because they are based on statistical techniques and previous data. However, financial institutions can improve risk assessment, portfolio management, and fraud detection thanks to AI's adaptive learning, real-time processing, and automation. By identifying irregularities and forecasting market volatility based on past and current data, AI-powered algorithms improve risk management. Support vector machines (SVM), neural networks (NN), and reinforcement learning (RL) are examples of machine learning models that enhance credit score and give lenders more accurate information about a borrower's dependability. Additionally, algorithmic trading minimizes human error and maximizes earnings by using AI to evaluate market trends and execute deals at the best times. Financial institutions can extract insights from news stories, social media, and analyst reports by using natural language processing (NLP) in sentiment analysis. This helps them make well-informed investment decisions. Furthermore, through the analysis of transactional data, generative AI and large language models (LLMs) improve financial reporting, automate compliance monitoring, and identify fraudulent activity. AI-powered robo-advisors democratize financial planning for individual investors by offering tailored investment suggestions. Notwithstanding its benefits, there are drawbacks to incorporating AI into financial models, such as issues with algorithmic bias, data privacy, computing costs, and regulatory compliance. Maintaining openness in decision-making procedures and ensuring the ethical application of AI continue to be crucial issues. A promising approach to improving interpretability and confidence in AI-driven financial systems is explainable AI (XAI). AI's involvement in capital allocation, asset pricing, and financial forecasting will grow as it develops further, spurring efficiency and innovation in the financial industry. Future studies should concentrate on enhancing the interpretability of AI, developing regulatory frameworks, and creating hybrid AI models that integrate cutting-edge machine learning methods with conventional financial theories. Global financial ecosystems are changing as a result of the confluence of artificial intelligence (AI), big data, and financial technology (FinTech), opening the door for more intelligent and robust financial models.

Artificial Intelligence (AI) is an interdisciplinary field of study that focuses on building machines that are able to think and, in particular, act in an intelligent manner. In this context, it is preferable to characterise intelligence as the ability to accomplish complex tasks, as opposed to anchoring this concept on the notion of human intelligence or thought. Machine Learning (ML) is a subfield of AI that encompasses software that improves with experience. A variety of teaching methods can be used to train ML algorithms, including supervised learning, unsupervised learning and reinforcement learning. In turn, Deep Learning (DL) is a subfield of ML that uses deep neural networks (DNN) to identify useful patterns in the input data. On the technical side, this chapter draws a distinction between artificial narrow intelligence (ANI), artificial general intelligence (AGI) and artificial superintelligence (ASI). All current instances of AI fall within the realm of ANI, but the increasing power of learning algorithms is gradually shifting the balance towards the AGI paradigm. We also explored the distinction between weak AI and strong AI based on consciousness, though concerns have been raised about the relevance and falsifiability of these concepts. AI is already playing an important role in the financial industry, including in the banking, investing and insurance sectors. However, the journey towards widespread adoption has been bumpy and halted by several roadblocks. An appreciation of key historical milestones helps to put the technology’s achievements into perspective and understand some of the future directions that AI research may take.

In this paper, a dual-band circular ring monopole antenna with semi-circular strip for WLAN(Wireless Local Area Networks)/WiMAX(World interoperability for Microwave Access) applications. The proposed antenna is based on a planar monopole design, and composed of half circular strip for dual-band operation which cover WLAN and WiMAX frequency bands. To obtain the optimized parameters, we used the simulator, Ansoft’s High Frequency Structure Simulator(HFSS) and found the parameters that greatly effect antenna characteristics. Using the obtained parameters, the antenna is fabricated. The numerical and experiment results demonstrated that the proposed antenna satisfied the -10 dB impedance bandwidth requirement while simultaneously covering the WLAN and WiMAX bands. And characteristics of gain and radiation patterns are obtained for WLAN/WiMAX frequency bands.