The Database of Faces

Our Database of Faces, (formerly 'The ORL Database of Faces'), contains a set of face images taken between April 1992 and April 1994 at the lab. The database was used in the context of a face recognition project carried out in collaboration with the Speech, Vision and Robotics Group of the Cambridge University Engineering Department.

There are ten different images of each of 40 distinct subjects. For some subjects, the images were taken at different times, varying the lighting, facial expressions (open / closed eyes, smiling / not smiling) and facial details (glasses / no glasses). All the images were taken against a dark homogeneous background with the subjects in an upright, frontal position (with tolerance for some side movement). A preview image of the Database of Faces is available.

The files are in PGM format, and can conveniently be viewed on UNIX (TM) systems using the 'xv' program. The size of each image is 92x112 pixels, with 256 grey levels per pixel. The images are organised in 40 directories (one for each subject), which have names of the form sX, where X indicates the subject number (between 1 and 40). In each of these directories, there are ten different images of that subject, which have names of the form Y.pgm, where Y is the image number for that subject (between 1 and 10).

The database can be retrieved from http://www.cl.cam.ac.uk/Research/DTG/attarchive:pub/data/att_faces.tar.Z as a 4.5Mbyte compressed tar file or from http://www.cl.cam.ac.uk/Research/DTG/attarchive:pub/data/att_faces.zip as a ZIP file of similar size.

A convenient reference to the work using the database is the paper Parameterisation of a stochastic model for human face identification. Researchers in this field may also be interested in the author's PhD thesis, Face Recognition Using Hidden Markov Models, available from http://www.cl.cam.ac.uk/Research/DTG/attarchive/pub/data/fsamaria_thesis.ps.Z (~1.7 MB).

When using these images, please give credit to AT&T Laboratories Cambridge.

UNIX is a trademark of UNIX System Laboratories, Inc.

Contact information Copyright © 2002 AT&T Laboratories Cambridge

Credit: https://www.cl.cam.ac.uk/research/dtg/attarchive/facedatabase.html

The best results obtained by our method are listed together with the corresponding shown in brackets.

AT&T reported $397.47B in Assets for its fiscal quarter ending in March of 2025. Data for AT&T | T - Assets including historical, tables and charts were last updated by Trading Economics this last July in 2025.

AT&T reported $30.63B in Sales Revenues for its fiscal quarter ending in March of 2025. Data for AT&T | T - Sales Revenues including historical, tables and charts were last updated by Trading Economics this last July in 2025.

AT&T reported $6.35B in EBIT for its fiscal quarter ending in March of 2025. Data for AT&T | T - Ebit including historical, tables and charts were last updated by Trading Economics this last July in 2025.

The best results are listed.

Dataset

This dataset was created by MritunjayMohitesh

Contents

It contains the following files:

Results of transcript sequencing for AtT-20FlpIn cells. mRNA was isolated from AtT-20FlpIn cells using standard procedures, next generation sequencing was performed by Macrogen (https://dna.macrogen.com/). A report ourtlining the workflow and data analysis methods is available from the Authors by request.

Deposited data is in an Excel file, which includes the gene symbol, transcript ID from the reference mouse genome, protein ID and transcript abundance. The AtT-20FlpIn cells were generated by Dr Santiago, and have been used as the 'wild type' cells for generating cell lines stably expressing GPCR and ion channels for most of the molecular pharmacology projects in the Molecular Pharmacodynamics group.

AT&T Corporation Whois Database, discover comprehensive ownership details, registration dates, and more for AT&T Corporation with Whois Data Center.

AT&T Inc. provides telecommunications, media, and technology services worldwide. Its Communications segment offers wireless voice and data communications services; and sells handsets, wireless data cards, wireless computing devices, and carrying cases and hands-free devices through its own company-owned stores, agents, and third-party retail stores. It also provides data, voice, security, cloud solutions, outsourcing, and managed and professional services, as well as customer premises equipment for multinational corporations, small and mid-sized businesses, governmental, and wholesale customers. In addition, this segment offers broadband fiber and legacy telephony voice communication services to residential customers. It markets its communications services and products under the AT&T, Cricket, AT&T PREPAID, and AT&T Fiber brand names. The company's Latin America segment provides wireless services in Mexico; and video services in Latin America. This segment markets its services and products under the AT&T and Unefon brand names. The company was formerly known as SBC Communications Inc. and changed its name to AT&T Inc. in 2005. AT&T Inc. was incorporated in 1983 and is headquartered in Dallas, Texas.

This statistic gives information on the most-targeted victim regions of malicious data breaches in 2019, ranked by share of total global cyber attacks. During the data collection period, it was found that ** percent of cyber attack incidents occurred in North America.

AT&T reported $11.53B in EBITDA for its fiscal quarter ending in March of 2025. Data for AT&T | T - Ebitda including historical, tables and charts were last updated by Trading Economics this last July in 2025.

AT&T reported $126.16B in Debt for its fiscal quarter ending in March of 2025. Data for AT&T | T - Debt including historical, tables and charts were last updated by Trading Economics this last July in 2025.

Mexico Fixed Internet Access: AT&T data was reported at 0.110 Unit mn in Sep 2019. This records a decrease from the previous number of 0.112 Unit mn for Aug 2019. Mexico Fixed Internet Access: AT&T data is updated monthly, averaging 0.127 Unit mn from Oct 2018 (Median) to Sep 2019, with 12 observations. The data reached an all-time high of 0.145 Unit mn in Oct 2018 and a record low of 0.110 Unit mn in Sep 2019. Mexico Fixed Internet Access: AT&T data remains active status in CEIC and is reported by Federal Telecommunications Institute. The data is categorized under Global Database’s Mexico – Table MX.TB014: Number of Fixed Internet Access: by Contract.

Browse AT&T Inc. (T) market data. Get instant pricing estimates and make batch downloads of binary, CSV, and JSON flat files.

Consolidated last sale, exchange BBO and national BBO across all US equity options exchanges. Includes single name stock options (e.g. TSLA), options on ETFs (e.g. SPY, QQQ), index options (e.g. VIX), and some indices (e.g. SPIKE and VSPKE). This dataset is based on the newer, binary OPRA feed after the migration to SIAC's OPRA Pillar SIP in 2021. OPRA is notable for the size of its data and we recommend users to anticipate several TBs of data per day for the full dataset in its highest granularity (MBP-1).

Origin: Options Price Reporting Authority

Supported data encodings: DBN, JSON, CSV Learn more

Supported market data schemas: MBP-1, OHLCV-1s, OHLCV-1m, OHLCV-1h, OHLCV-1d, TBBO, Trades, Statistics, Definition Learn more

Resolution: Immediate publication, nanosecond-resolution timestamps

This dataset contains mobile wireless download speed test results and areas where the PSD (Vermont Public Service Department) challenged mobile wireless service asserted by wireless carriers.DOWNLOAD SPEED TEST RESULTSResults from download speed tests that were conducted in September-December 2018 are contained by 6 point feature-classes, each with results for a particular carrier.PSD staff employed the android smartphone application G-NetTrack to conduct download speed tests at approximately 300 meter intervals along all federal-aid highways.The point feature-classes are very detailed and more suitable when zoomed into the neighborhood scale. All point feature-classes have the same field schema, which includes these fields: timestamp: Date and time at which the data point was collected. signal_str: Signal strength (RSRP in dBm). download_s: Download speed (in Mbps). latency: The round-trip time for a request to a website, in milliseconds.DRIVE-TEST BLOCKSDrive-test blocks (Utility_DriveTest_poly_Blocks) is a polygon feature-class that is composed of 1-kilometer blocks; it has a field for each of the 6 carriers; the fields show the average download speed recorded in each block for each carrier.The fields also include a composite field (All_) that contains averages of all carriers, masking variation in coverage between individual carriers. "999" indicates no test was conducted for the carrier in that block.Drive-test blocks are generalized information and are suitable when zoomed at various scales. A BLOCK DOES NOT INDICATE SERVICE THROUGHOUT A BLOCK; use the point feature-classes for detailed data and judge accordingly.WIRELESS CHALLENGE BLOCKSWireless Challenge Blocks (Utility_DriveTest_poly_VTMFCIIChallengeBlocks) depicts the status of each block in the submission of the PSD in the FCC Mobility Fund Phase II Challenge process. It shows challenges to mobile wireless service asserted by wireless carriersA value of 0 in the Area_1 field indicates that the challenge was rejected, either because a) the block is already largely eligible, or b) because no tests below 5 Mbps were submitted.DISCLAIMERVCGI and the State of VT make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.

Att is a renowned communication technology company that has been a pioneer in the field of telecommunications. Founded in 1885, the company has a rich history of innovation and has played a significant role in shaping the industry. With a legacy that spans over 135 years, Att has been at the forefront of bringing cutting-edge solutions to its customers.

From its early days as a telegraph company to its current status as a leading provider of mobile and broadband services, Att has consistently demonstrated its commitment to delivering high-quality products and services to its customers. With its strong presence in the domestic and international markets, Att is a household name that is synonymous with excellence and reliability.

In the fourth quarter of 2023, AT&T generated their first quarterly revenue above one billion U.S. dollars in Latin America since the fourth quarter of 2021. AT&T's Latin American business consists of *** segments: satellite pay-TV services offered by Vrio –which is present in various countries across the subcontinent– as well as mobile telephony services in Mexico.

Subscribers can find out export and import data of 23 countries by HS code or product’s name. This demo is helpful for market analysis.

Subscribers can find out export and import data of 23 countries by HS code or product’s name. This demo is helpful for market analysis.