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Topic Review
Social Behavioral Biometrics
Social Behavioral Biometrics (SBB) is a novel biometric category. This innovative field of study investigates a person’s social interactions and communication patterns to ascertain their identity. 
  • 284
  • 12 Oct 2023
Topic Review
Relational Cues and Tailoring of e-Coach Dialogues
Relational cues are extracts from actual verbal dialogues that help build the therapist–patient working alliance and stronger bond through the depiction of empathy, respect and openness. ECAs (Embodied conversational agents) are human-like virtual agents that exhibit verbal and non-verbal behaviours. In the digital health space, ECAs act as health coaches or experts.
  • 190
  • 12 Oct 2023
Topic Review
Knowledge Reasoning
A knowledge graph (KG) organizes knowledge as a set of interlinked triples, and a triple ((head entity, relation, tail entity), simply represented as (h, r, t)) indicates the fact that two entities have a certain relation. The availability of formalized and rich structured knowledge has emerged as a valuable resource in facilitating various downstream tasks, such as question answering and recommender systems. Although KGs such as DBpedia, Freebase, and NELL contain large amounts of entities, relations, and triples, they are far from complete, which is an urgent issue for their broad application. To address this, researchers have introduced the concept of knowledge graph completion (KGC), which has garnered increasing interest. It utilizes knowledge reasoning techniques to automatically discover new facts based on existing ones in a KG.
  • 154
  • 12 Oct 2023
Topic Review
Diabetic Retinopathy Lesion Identification and Multiple Instance Learning
Accurate identification of lesions and their use across different medical institutions are the foundation and key to the clinical application of automatic diabetic retinopathy (DR) detection. Existing detection or segmentation methods can achieve acceptable results in DR lesion identification, but they strongly rely on a large number of fine-grained annotations that are not easily accessible and suffer severe performance degradation in the cross-domain application.
  • 224
  • 11 Oct 2023
Topic Review
CAPTCHA Classification
To achieve an acceptable level of security on the web, the Completely Automatic Public Turing test to tell Computer and Human Apart (CAPTCHA) was introduced as a tool to prevent bots from doing destructive actions such as downloading or signing up. Smartphones have small screens, and, therefore, using the common CAPTCHA methods (e.g., text CAPTCHAs) in these devices raises usability issues.
  • 471
  • 11 Oct 2023
Topic Review
Mapping of the NUMA-BTDM Algorithm
Through Low-Level Virtual Machine (LLVM)-compiling infrastructure, one can build just-in-time (JIT) compilers which are used to interpret the LLVM IR (Intermediate Representation) corresponding to new syntactic rules as part of a new programming language invented by the developer. In this case, the LLVM JIT is used to compile the code which is not part of the language definitions of clang (LLVM front end). LLVM JIT can also trigger LLVM optimizations on the LLVM IR. 
  • 231
  • 11 Oct 2023
Topic Review
Oximetry for Obstructive Sleep Apnea
Scoring polysomnography for obstructive sleep apnea diagnosis is a laborious, long, and costly process. Machine learning approaches, such as deep neural networks, can reduce scoring time and costs.
  • 451
  • 11 Oct 2023
Topic Review Peer Reviewed
Safeguarding Traditional Crafts in Europe
This entry discusses the challenge of safeguarding crafts in Europe. Safeguarding is defined herein as the systematic process of understanding, representing, preserving, and valorizing crafts following the recommendations of UNESCO and the UN-World Tourism Organization. The abovementioned challenges are discussed through a multidisciplinary prism starting from the scientific challenges in the information and communication technologies sector and expanding the discussion to ethical, legal, and policy-making measures and recommendations to safeguard crafts as a form of tangible and intangible cultural heritage but also as a source of growth and impact for the communities that practice them. To this end, the role of education and training for craft preservation is discussed, considering that the declining number of practitioners and apprentices is considered today the main threat to their preservation.
  • 439
  • 11 Oct 2023
Topic Review
Sign Language Recognition Techniques
Historically, individuals with hearing impairments have faced neglect, lacking the necessary tools to facilitate effective communication. Building a sign language recognition system using deep learning technology plays a vital role in interpreting sign language to ordinary individuals and the reverse. This system would ease the process of communication between deaf and normal people.
  • 207
  • 10 Oct 2023
Topic Review
Specifications of 5G Cell Search
5G Cell Search (CS) is the first step for user equipment (UE) to initiate communication with the 5G node B (gNB) every time it is powered ON. In cellular networks, CS is accomplished via synchronization signals (SS) broadcasted by gNB. 5G 3rd generation partnership project (3GPP) specifications offer a detailed discussion on the SS generation at gNB, but a limited understanding of their blind search and detection is available. 
  • 437
  • 10 Oct 2023
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