Searching Multiple Data Sources; Concurrent Multithreaded Search

• dtSearch products support integrated relevancy ranking with highlighted hits across both online and offline data repositories.
• Federated searching span any number of directories, emails (with nested attachments), and databases.
• The Spider adds local and remote, static and dynamic online content to a search. The Spider can index sites to any level of depth, with support for public and private or secure online content, including log-ins and forms-based authentication.
• dtSearch products offer efficient multithreaded searching, with no limit on the number of concurrent search threads.

Basic Search Types

• Natural language searching lets you enter a “plain English” (or any other international language) unstructured search request.
• Phrase searching finds phrases like: due process of law.
• Boolean operators like and/or/not can join words and phrases: due process of law and not (equal protection or civil rights).
• Proximity searching finds a word or phrase within “n” words of another word or phrase: apple pie w/38 peach cobbler.
• Directed proximity searching finds a word or phrase “n” words before another word or phrase: apple pie pre/38 peach cobbler.
• Positional search finds words of phrases "n" words towards the beginning or end of a file: apple w/5 xfirstword or apple w/5 xlastword
• Metadata-specific searching (multiple options)
• Phonic searching finds words that sound alike, like Smythe in a search for Smith.
• Stemming finds variations on endings, like applies, applied, applying in a search for apply.
• Numeric range searching finds any number between two numbers, such as between 6 and 36.
• Macro capabilities make it easy to include frequently used items in a search request.
• Wildcard support allows ? to hold a single letter place, and * to hold multiple letter places: apple* and not appl?sauce.
• Regular expressions support provides a way to search for combinations of characters.
• Digit character matching enables searching for patterns of numbers.
• Unicode support allows for searching hundreds of international languages, including support for “right to left” languages and special options for Asian character handling.
• Multicolor hit-highlighting search options (up to 10 highlight colors)
• Emoji search
• International language / Unicode search

See Forensics and Other Advanced Search for:

• Automatic date recognition
• Credit card and social security number recognition
• Email identification
• Search for list of words
• Search reports
• Hash value generation and search

Fuzzy Searching

• Fuzzy searching uses a proprietary algorithm to find search terms even if they are misspelled.
• Search fuzziness adjusts from 0 to 10 so you can fine-tune fuzziness to the level of OCR or typographical errors in your files.
• A search for alphabet with a fuzziness of 1 would find alphaqet; with a fuzziness of 4, it would find both alphaqet and alpkaqet.
• Fuzziness is not built into the index, so you can vary fuzziness at the time of each search.

Concept / Synonym / Thesaurus Searching

• Concept searching lets you look for fast and find quick, speedy, etc.
• dtSearch offers variable levels of automatic synonym expansion based on a comprehensive semantic network of the English language.
• You can also add your own thesaurus terms.
• For example, Frank and Jones would not be synonyms covered by the built-in semantic network.  But if you are working on the Frank Jones case, you may want to make them synonyms for purposes of your case.  The same principle applies to technical jargon like airbags and SRS.

Relevancy-Ranking

USA Daily Chronicles: Text Search and Relevancy

See separate Relevancy-Ranking topic

Metadata

Price of Business – dtSearch – Integrated Full-Text and Metadata Searching Segment Overview at The Times USA

• dtSearch products can index and search metadata in all supported file types and databases: MS Access, Word, PowerPoint, OneNote, other “Office” files, compression formats (RAR, ZIP, GZIP, TAR), XBASE, CSV, HTML, XML/XSL, PDF, PDF portfolio, ASP.NET, CMS, PHP, SharePoint, etc.
• dtSearch products can also index and search metadata in emails such as Outlook/Exchange (PST/OST/MSG) and Thunderbird (MBOX/EML), including metadata in both emails and in attachments (even recursively embedded attachments). More email options
• Detection and support of metadata in all supported data types is automatic.
• In addition to locating general search terms in metadata, dtSearch products can also limit searching to specific metadata: (Author contains John Smith) and (Subject contains turbine generators).
• For XML data, dtSearch supports hierarchical metadata structures, including both metadata and attributes, enabling highly refined nested metadata queries.
• Variable term weighting can also apply to metadata: (description:5 contains (apple and pear)) or (author:2 contains smith).
• See also Faceted Search and Data Classification.

Combining Search Types

• Nearly all search types are combinable.
• You can make your search request as complex as you want — see Search Tips at right.

Special Forensics Search Options

Before You Start, See Federated Searching and the dtSearch Spider PDFs and OCR View Log of Encrypted Files Automatic Recognition of Dates Personally Identifiable Information (PII): Email Addresses, Credit Cards, Social Security Numbers Forensics Filtering Features Emails, Messages, Contacts, Appointments and the Like Fuzzy Searching SHA-256 and MD5 Hash Support International Language Support Chinese, Japanese and Korean Text With No Word Breaks Language Group Identification Hidden Content Disk Images Multicolor Hit-Highlighting Caching Search for List of Words; Hits by Word; Concept Search; Search Report Selecting and Copying Retrieved Files Making Available Retrieved Files on Portable Media